ED


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents


us-gaap:StatementEquityComponents
us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:ComprehensiveIncomeNetOfTax
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServicesSold
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService
us-gaap:ProductOrService

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:IncomeTaxExpenseBenefit
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities

us-gaap:IncomeTaxesPaidNet
dei:LegalEntity

us-gaap:InterestExpense
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:InterestExpenseDebt
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:InterestPaidNet
dei:LegalEntity

us-gaap:NetIncomeLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NonoperatingIncomeExpense
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:OperatingExpenses
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:OperatingIncomeLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:PublicUtility
us-gaap:StatementBusinessSegments

us-gaap:OtherComprehensiveIncomeLossNetOfTax
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:OtherIncome

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:ConsolidationItems
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:PublicUtility
us-gaap:ConsolidationItems, us-gaap:PublicUtility, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService, us-gaap:PublicUtility, us-gaap:StatementBusinessSegments

us-gaap:Revenues
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:ProductOrService
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:ConsolidationItems
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:ProductOrService
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:ProductOrService
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:ProductOrService
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:PublicUtility, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:PublicUtility
us-gaap:ConsolidationItems, us-gaap:PublicUtility, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService

us-gaap:Assets
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidationItems
dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:PublicUtility
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidatedEntities
us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquity
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:AccountsReceivableNetCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:OtherAssetsCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:ConstructionInProgressGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:LongTermInvestments
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:Goodwill
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:BusinessAcquisition
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:OtherAssetsNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:AccountsPayableCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:LongTermDebtCurrent

us-gaap:NotesPayableCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:OperatingLeaseLiabilityCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities

us-gaap:OtherLiabilitiesCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:TaxesPayableCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:MinorityInterest
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition

us-gaap:OperatingLeaseLiabilityNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities

us-gaap:OperatingLeaseLiability
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquity
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
dei:LegalEntity

us-gaap:MinorityInterest
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
dei:LegalEntity

us-gaap:DeferredIncomeTaxExpenseBenefit
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsPayable
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsReceivable
dei:LegalEntity

us-gaap:IncreaseDecreaseInInventories
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetIncomeLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfLongTermDebt
dei:LegalEntity

us-gaap:RepaymentsOfLongTermDebt
dei:LegalEntity

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:DeferredTaxLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsNet
dei:LegalEntity

us-gaap:UnrecognizedTaxBenefits
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:ProceedsFromRepaymentsOfShortTermDebt
dei:LegalEntity
dei:LegalEntity
ed:AdjustmentstoAdditionalPaidinCapitalContributionsbyParent
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:LossContingenciesByNatureOfContingency, us-gaap:RegulatoryAgency
ed:CapitalAndRetirementCosts

ed:ContractwithCustomerLiabilityDecreaseFromBillings

ed:ContractwithCustomerLiabilityUnbilledRevenueAccrualsAndDeferrals
dei:LegalEntity

ed:CreditExposureIndependentSystemOperators

ed:CreditExposureNonratedCounterParties

ed:DeferredDerivativeGainsLosses
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation

ed:DeferredGainLossLiability
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RetirementPlanType
ed:DefinedBenefitPlanCostCapitalized
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
ed:DefinedBenefitPlanCostCreditRecognized
us-gaap:RetirementPlanType

ed:DepreciationExpenseOtherDeferredChargesAndNoncurrentAssetsAndPrepayments
dei:LegalEntity
us-gaap:TaxPeriod
ed:DiscreteIncomeTaxBenefit
dei:LegalEntity
ed:EarningsAdjustmentMechanismIncentiveRevenue
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RetirementPlanType
ed:EffectOfReconciliationToRateLevel
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType

ed:EffectiveIncomeTaxRateReconciliationChangeInAllowanceForUncollectibleAccountsPercent
dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:EffectiveIncomeTaxRateReconciliationCostOfRemovalPercent
dei:LegalEntity

ed:EffectiveIncomeTaxRateReconciliationInjuriesAndDamagesReservePercent
dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationOfExcessDeferredFederalIncomeTaxesPercent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:EffectiveIncomeTaxRateReconciliationTaxCreditRenewableEnergyCreditsPercent
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
ed:EquityMethodInvestmentRealizedGainLossOnDisposalBeforeTax

ed:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainLossIncludedinRegulatoryAssetsandLiabilities
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
ed:GainLossOnDispositionOfPropertyPlantEquipmentExcludingOilAndGasPropertyAndTimberPropertyAfterTax

ed:IncomeBeforeInterestIncomeInterestExpenseAndIncomeTaxes
dei:LegalEntity
us-gaap:ConsolidatedEntities

ed:IncreaseDecreaseInRevenueDecouplingMechanismReceivables
dei:LegalEntity

ed:IncreaseDecreaseinSystemBenefitChargeLiability
dei:LegalEntity

ed:InterestExpenseIncomeOtherNet
us-gaap:ConsolidatedEntities

ed:LateFeeIncomeandOtherFeesNotCollected
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:NetDeferredGainLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:TaxPeriod
ed:OperatingLossCarryback

ed:PaymentsNonUtilityConstructionExpenditures
us-gaap:GuaranteeObligationsByNature
ed:PercentageOfEstimatedCostsOnProjects
dei:LegalEntity, us-gaap:RetirementPlanType
ed:PeriodicBenefitCostAfterAmortizationOfRegulatoryAsset
us-gaap:RetirementPlanType
us-gaap:DebtInstrument, us-gaap:StatementBusinessSegments
ed:ProceedsFromTaxEquityFinancingAgreement
us-gaap:DebtInstrument, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility
ed:PropertyDamageCleanUpAndResponseExpense
dei:LegalEntity, us-gaap:LossContingenciesByNatureOfContingency, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility
ed:PublicUtilitiesNumberOfCustomersAffected
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:StatementGeographical, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility
ed:PublicUtilitiesServiceAndRepairCosts

ed:ReturnOnRegulatoryAssets
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:LossContingenciesByNatureOfContingency
ed:RevenueFromContractWithCustomerEstimatedForgoneRevenues
dei:LegalEntity, us-gaap:LossContingenciesByNatureOfContingency
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:LossContingenciesByNatureOfContingency
ed:RevenueFromContractsWithCustomerLatePaymentChargesAndFees

ed:UnbilledContractsReceivableDecreaseFromBillings

ed:UnbilledContractsReceivableRevenueRecognized
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility
ed:UtilitiesOperatingExpenseFoodAndMedicineSpoilageExpense
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
ed:VariableInterestEntityMeasureOfActivityNetIncomeLoss
us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:AdjustmentForAmortization
dei:LegalEntity

us-gaap:AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
dei:LegalEntity, us-gaap:LossContingenciesByNatureOfContingency, us-gaap:PublicUtility
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:CapitalExpendituresIncurredButNotYetPaid
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:ConstructionInProgressExpendituresIncurredButNotYetPaid
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueModificationOfContract

us-gaap:ContractWithCustomerLiabilityRevenueRecognized
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
dei:LegalEntity
us-gaap:DefinedBenefitPlanContributionsByEmployer
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType

us-gaap:DepreciationAndAmortization
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:ConsolidatedEntities
us-gaap:PublicUtility
us-gaap:StatementBusinessSegments

us-gaap:DerivativeGainLossOnDerivativeNet
dei:LegalEntity
dei:LegalEntity, us-gaap:IncomeStatementLocation
us-gaap:IncomeStatementLocation

us-gaap:DividendsCommonStock
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense

us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:EnvironmentalRemediationExpense
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:EquityMethodInvestmentDividendsOrDistributions
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal
dei:LegalEntity, us-gaap:IncomeStatementLocation
us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
dei:LegalEntity, us-gaap:IncomeStatementLocation
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
dei:LegalEntity

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:GainLossOnDispositionOfAssets

us-gaap:GainLossOnSaleOfDerivatives
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:GoodwillImpairmentLoss
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:GoodwillImpairmentLossNetOfTax

us-gaap:ImpairmentOfInvestments

us-gaap:IncomeTaxReconciliationTaxContingencies
dei:LegalEntity

us-gaap:IncreaseDecreaseInDeferredCharges
dei:LegalEntity

us-gaap:IncreaseDecreaseInDeferredLiabilities
dei:LegalEntity
dei:LegalEntity
us-gaap:IncreaseDecreaseInDueFromAffiliatesCurrent
dei:LegalEntity
us-gaap:IncreaseDecreaseInDueToAffiliatesCurrent

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInInterestPayableNet
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherReceivables
dei:LegalEntity

us-gaap:IncreaseDecreaseInPensionAndPostretirementObligations
dei:LegalEntity

us-gaap:IncreaseDecreaseInPrepaidExpense
dei:LegalEntity

us-gaap:IncreaseDecreaseInPropertyAndOtherTaxesPayable
dei:LegalEntity

us-gaap:IncrementalCommonSharesAttributableToContingentlyIssuableShares

us-gaap:InterestExpenseOther
dei:LegalEntity

us-gaap:InvestmentIncomeNet
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility, us-gaap:RegulatoryAgency
us-gaap:LitigationSettlementAmountAwardedFromOtherParty
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:LossContingenciesByNatureOfContingency, us-gaap:PublicUtility, us-gaap:SubsequentEventType
us-gaap:LitigationSettlementAmountAwardedToOtherParty
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility, us-gaap:SubsequentEventType

us-gaap:NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest
us-gaap:StatementEquityComponents

us-gaap:OperatingLeaseCost
dei:LegalEntity

us-gaap:OperatingLeasePayments
dei:LegalEntity
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
dei:LegalEntity

us-gaap:OtherIncreaseDecreaseInEnvironmentalLiabilities
dei:LegalEntity

us-gaap:OtherNoncashIncomeExpense
dei:LegalEntity

us-gaap:OtherNonoperatingExpense
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:PaymentsForConstructionInProcess
dei:LegalEntity

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromRemovalCosts
dei:LegalEntity
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:PaymentsOfDebtExtinguishmentCosts

us-gaap:PaymentsOfDebtIssuanceCosts
dei:LegalEntity
dei:LegalEntity
us-gaap:PaymentsOfOrdinaryDividends

us-gaap:PaymentsToAcquireProjects

us-gaap:PaymentsToMinorityShareholders

us-gaap:PensionAndOtherPostretirementBenefitContributions
dei:LegalEntity
dei:LegalEntity
us-gaap:ProceedsFromContributionsFromParent

us-gaap:ProceedsFromIssuanceInitialPublicOffering

us-gaap:ProceedsFromIssuanceOfCommonStock
us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:StatementBusinessSegments
us-gaap:ProceedsFromIssuanceOfDebt
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
us-gaap:ConsolidatedEntities, us-gaap:StatementScenario, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:StatementBusinessSegments, us-gaap:SubsequentEventType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:ProceedsFromIssuanceOrSaleOfEquity
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromOtherEquity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ProceedsFromSaleOfEquityMethodInvestments
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementScenario
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:ProvisionForDoubtfulAccounts
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
dei:LegalEntity, us-gaap:LossContingenciesByNatureOfContingency, us-gaap:PublicUtility
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:PublicUtility, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesApprovedRateIncreaseDecreaseAmount
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:PublicUtility, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:PublicUtility, us-gaap:RegulatoryAgency
us-gaap:PublicUtilitiesRequestedRateIncreaseDecreaseAmount
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, us-gaap:RegulatoryAsset
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, us-gaap:StatementScenario
dei:LegalEntity, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
us-gaap:PublicUtilitiesRequestedReturnOnEquityPercentage
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodTax
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument
us-gaap:RepaymentsOfDebt
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:StatementBusinessSegments
us-gaap:DebtInstrument
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility
us-gaap:StormDamageProvision

us-gaap:TaxesExcludingIncomeAndExciseTaxes
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility
us-gaap:UtilitiesOperatingExpenseMaintenanceAndOperations
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax
us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:VariableInterestEntityOwnershipPercentage

ed:AccumulatedDepreciationOtherDeferredChargesAndNoncurrentAssetsAndPrepayments
dei:LegalEntity

ed:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTaxAndReclassificationAdjustment
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk
ed:AdditionalCollateralForDerivativeNetAssets

ed:AdditionalCollateralForNonDerivativeTransactionsWithoutExtendedUnsecuredCredit
us-gaap:Range, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
ed:AggregateProjectCost
us-gaap:BusinessAcquisition
ed:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumePropertyPlantandEquipmentPropertyPlantandEquipmentNonUtilityPlantDepreciation
us-gaap:BusinessAcquisition
ed:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumePropertyPlantandEquipmentPropertyPlantandEquipmentNonUtilityPlantNet
dei:LegalEntity
ed:CommonStockEquity
us-gaap:ConsolidatedEntities

ed:CommonStockEquityBeforeAccumulatedComprehensiveIncomeLoss
dei:LegalEntity

ed:CommonStockEquityShares
us-gaap:StatementEquityComponents

ed:ContractWithCustomerLiabilityRevenueRecognizedPreviouslyOutstanding
dei:LegalEntity, ed:Program, us-gaap:ConsolidatedEntities, us-gaap:MajorCustomers, us-gaap:LossContingenciesByNatureOfContingency
ed:ContractWithCustomerReceivableExpectedAmount
dei:LegalEntity, ed:Program, us-gaap:MajorCustomers, us-gaap:LossContingenciesByNatureOfContingency
dei:LegalEntity, us-gaap:MajorCustomers, us-gaap:LossContingenciesByNatureOfContingency
dei:LegalEntity, us-gaap:PublicUtility
ed:DeferredRegulatoryAssetLiability

ed:DeferredTaxAssetsAssetRetirementObligations
dei:LegalEntity

ed:DeferredTaxAssetsPensionAndOtherPostretirementCosts
dei:LegalEntity

ed:DeferredTaxAssetsRegulatoryAssetsAndLiabilitiesFutureIncomeTax
dei:LegalEntity

ed:DeferredTaxAssetsRegulatoryAssetsAndLiabilitiesOther
dei:LegalEntity

ed:DeferredTaxAssetsSuperfundAndEnvironmentalCosts
dei:LegalEntity

ed:DeferredTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCredit
dei:LegalEntity
us-gaap:ConsolidatedEntities

ed:DeferredTaxLiabilitiesEnvironmentalRedemptionCosts
dei:LegalEntity

ed:DeferredTaxLiabilitiesEquityMethodInvestments
dei:LegalEntity

ed:DeferredTaxLiabilitiesExcludingInvestmentinNoncontrolledAffiliatesNet
dei:LegalEntity

ed:DeferredTaxLiabilitiesOperatingLeaseLiabilities
dei:LegalEntity

ed:DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset
dei:LegalEntity

ed:DeferredTaxLiabilitiesOtherRegulatoryAssets

ed:DeferredTaxLiabilitiesPensionAndOtherPostretirementCosts
dei:LegalEntity

ed:DeferredTaxLiabilitiesStormCosts

ed:DerivativeAssetLiabilityGrossAmountOffsetInBalanceSheet
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:DirectFinancingLeaseAccumulatedAmortization
dei:LegalEntity

ed:DisposalGroupIncludingDiscontinuedOperationPropertyPlantandEquipmentNonUtilityPlantNetNoncurrent
dei:LegalEntity

ed:EnergyRelatedInventoryFuelOilGasAndMaterialsAndSuppliesCost
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
ed:EquityMethodInvestmentOwnershipPercentageExpectedIncreaseDecrease
dei:LegalEntity, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
ed:FiniteLivedIntangibleAssetsAnnualAmortizationExpense
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ed:GrossAmountsofRecognizedAssetsLiabilities
dei:LegalEntity

ed:LiabilitiesNoncurrentExcludingLongTermDebt
dei:LegalEntity
us-gaap:ConsolidatedEntities

ed:MarginDepositLiabilities
dei:LegalEntity

ed:MaximumPotentialFutureExposureOnCreditRiskDerivativesWithCommodityExchangeBrokers
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:MaximumPotentialFutureExposureOnCreditRiskDerivativesWithInvestmentGradeCounterparties
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:NetUtilityPlant
dei:LegalEntity
us-gaap:ConsolidatedEntities

ed:NonUtilityPropertyNet
dei:LegalEntity
us-gaap:IncomeTaxAuthority, us-gaap:IncomeTaxAuthorityName
ed:OperatingLossCarryforwardsValuationAllowanceReversed

ed:OtherDeferredChargesAndNoncurrentAssets
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:EnvironmentalRemediationSite, us-gaap:PublicUtility
ed:PotentialUndiscountedLiabilityForEnvironmentalLossContingenciesGross
dei:LegalEntity, us-gaap:Range, us-gaap:EnvironmentalRemediationSite, us-gaap:PublicUtility
us-gaap:Range, us-gaap:EnvironmentalRemediationSite, us-gaap:PublicUtility

ed:ProvisionForInjuriesAndDamages
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:StatementScenario, us-gaap:PublicUtility, us-gaap:RegulatoryAgency
ed:PublicUtilitiesApprovedRateAmount
dei:LegalEntity, us-gaap:PublicUtility, us-gaap:RegulatoryAgency

ed:PublicUtilitiesDepreciationAllowanceCurrentRatePlans
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:PublicUtility
ed:PublicUtilitiesMaximumDeferralPercentage
dei:LegalEntity, us-gaap:PublicUtility
ed:PublicUtilitiesPropertyPlantAndEquipmentSteam
us-gaap:PublicUtility
dei:LegalEntity, us-gaap:PublicUtility
ed:PublicUtilitiesPropertyPlantandEquipmentGeneral
us-gaap:PublicUtility
dei:LegalEntity, us-gaap:LongTermContractForPurchaseOfElectricPower, us-gaap:PublicUtility
ed:PublicUtilitiesPropertyPlantandEquipmentRateBaseAdjustments
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:LongTermContractForPurchaseOfElectricPower, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:PublicUtility
ed:PublicUtilitiesRecoveryDeferralPercentage

ed:RegulatoryAssetsNotEarningReturn
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RegulatoryAsset
dei:LegalEntity, us-gaap:RegulatoryAsset
us-gaap:RegulatoryAsset

ed:RevenueDecouplingMechanismReceivable
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:LongTermContractForPurchaseOfElectricPower, us-gaap:PublicUtility
ed:RevenueRequirementEarningsPercentage
dei:LegalEntity, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:PublicUtility

ed:SupplementalRetirementIncomePlanAssets
dei:LegalEntity

ed:SystemBenefitsChargeLiabilityCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity
ed:TaxesPayableRelatedPartiesCurrent

ed:UnrecognizedTaxBenefitsthatWouldImpactEffectiveTaxRateNetofTaxes
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:EnvironmentalRemediationContingency
us-gaap:AccrualForEnvironmentalLossContingencies
dei:LegalEntity, us-gaap:EnvironmentalRemediationContingency
us-gaap:EnvironmentalRemediationContingency

us-gaap:AccruedEnvironmentalLossContingenciesNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:EnvironmentalRemediationSite
dei:LegalEntity, us-gaap:EnvironmentalRemediationSite
us-gaap:ConsolidatedEntities
us-gaap:EnvironmentalRemediationSite

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:DerivativeInstrumentRisk
us-gaap:AdditionalCollateralAggregateFairValue
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk
us-gaap:ConsolidatedEntities
us-gaap:AdvancesToAffiliate
dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AllowanceForDoubtfulAccountsReceivable
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:AllowanceForDoubtfulOtherReceivablesCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:AssetRetirementObligationsNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:AssetsNet
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets

us-gaap:CapitalizationLongtermDebtAndEquity
dei:LegalEntity

us-gaap:CollateralAlreadyPostedAggregateFairValue
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DerivativeInstrumentRisk

us-gaap:CommercialPaper
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:MajorCustomers, us-gaap:LossContingenciesByNatureOfContingency
us-gaap:ContractWithCustomerAssetGross
dei:LegalEntity, us-gaap:MajorCustomers, us-gaap:LossContingenciesByNatureOfContingency

us-gaap:ContractWithCustomerAssetNet
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:ConsolidatedEntities

us-gaap:ContractWithCustomerLiability
dei:LegalEntity, us-gaap:PublicUtility

us-gaap:ContractWithCustomerRefundLiabilityCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:ContractualObligationDueAfterFifthYear
dei:LegalEntity

us-gaap:ContractualObligationDueInFifthYear
dei:LegalEntity

us-gaap:ContractualObligationDueInFourthYear
dei:LegalEntity

us-gaap:ContractualObligationDueInNextTwelveMonths
dei:LegalEntity

us-gaap:ContractualObligationDueInSecondYear
dei:LegalEntity

us-gaap:ContractualObligationDueInThirdYear
dei:LegalEntity

us-gaap:CreditDerivativeMaximumExposureUndiscounted
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:CreditRiskDerivativesAtFairValueNet
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
us-gaap:DebtInstrumentCarryingAmount
us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:StatementBusinessSegments
us-gaap:DebtInstrumentFaceAmount
us-gaap:SubsequentEventType

us-gaap:DebtInstrumentUnamortizedDiscount
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DeferredCompensationPlanAssets
dei:LegalEntity
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:DeferredCostsCurrentAndNoncurrent

us-gaap:DeferredCreditsAndOtherLiabilitiesNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:DeferredFinanceCostsNet
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards
dei:LegalEntity

us-gaap:DeferredTaxAssetsOther
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:DeferredTaxAssetsRegulatoryAssetsAndLiabilities

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities

us-gaap:DefinedBenefitPensionPlanCurrentAndNoncurrentLiabilities
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
dei:LegalEntity
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
dei:LegalEntity, us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:FairValueByAssetClass
us-gaap:DerivativeAssetFairValueGrossLiability
dei:LegalEntity, us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType
us-gaap:DerivativeAssetMeasurementInput
dei:LegalEntity, us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType

us-gaap:DerivativeAssets

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:FairValueByAssetClass
us-gaap:DerivativeFairValueOfDerivativeAsset
dei:LegalEntity, us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:FairValueByLiabilityClass
us-gaap:DerivativeFairValueOfDerivativeLiability
dei:LegalEntity, us-gaap:FairValueByLiabilityClass
us-gaap:FairValueByLiabilityClass

us-gaap:DerivativeFairValueOfDerivativeNet
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:DerivativeLiabilities

us-gaap:DerivativeLiabilitiesCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:DerivativeLiabilitiesNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:FairValueByLiabilityClass
us-gaap:DerivativeLiabilityFairValueGrossAsset
dei:LegalEntity, us-gaap:FairValueByLiabilityClass
us-gaap:FairValueByLiabilityClass
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNonmonetaryNotionalAmount
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount

us-gaap:DirectFinancingLeaseResidualValueOfLeasedAsset
dei:LegalEntity
dei:LegalEntity, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationConsideration

us-gaap:DividendsPayableCurrentAndNoncurrent
dei:LegalEntity
us-gaap:DueFromAffiliateCurrent
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:DueToAffiliateCurrent
us-gaap:ConsolidatedEntities

us-gaap:EmployeeRelatedLiabilitiesCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
us-gaap:AwardType
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentOwnershipPercentage
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestments
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentsFairValueDisclosure

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:FinanceLeaseLiability
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:FinanceLeaseLiabilityPaymentsDue
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:FinanceLeaseLiabilityPaymentsDueInRollingYearTwo
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
dei:LegalEntity, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:BusinessAcquisition
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
dei:LegalEntity, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:GuaranteeObligationsMaximumExposure
ed:GuarantorObligationsTerm
ed:GuarantorObligationsTerm, us-gaap:GuaranteeObligationsByNature
us-gaap:BusinessAcquisition
us-gaap:GuaranteeObligationsByNature

us-gaap:IncomeTaxesReceivable
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:LitigationCase, us-gaap:SubsequentEventType
us-gaap:InsuranceSettlementsReceivable

us-gaap:InterestPayableCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent
dei:LegalEntity
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:StatementBusinessSegments
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LoansPayableToBankCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue
dei:LegalEntity, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
dei:LegalEntity, us-gaap:LongTermContractForPurchaseOfElectricPower, us-gaap:PublicUtility
us-gaap:LongTermDebtPercentageBearingVariableInterestRate
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:LongTermContractForPurchaseOfElectricPower, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility
us-gaap:LossContingencyAccrualAtCarryingValue
dei:LegalEntity, us-gaap:LossContingenciesByNatureOfContingency, us-gaap:RegulatoryAgency
us-gaap:LitigationCase, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility
us-gaap:LossContingencyEstimateOfPossibleLoss
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility

us-gaap:MarginDepositAssets
dei:LegalEntity
dei:LegalEntity, us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByParent
us-gaap:Ownership, us-gaap:GuaranteeObligationsByNature

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
dei:LegalEntity

us-gaap:OperatingLossCarryforwards
us-gaap:IncomeTaxAuthority, us-gaap:IncomeTaxAuthorityName
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwardsValuationAllowance

us-gaap:OtherAssetsMiscellaneousNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:OtherLongTermDebt

us-gaap:OtherLongTermDebtCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:OtherLongTermInvestments
dei:LegalEntity

us-gaap:OtherReceivables
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:PlantHeldForFutureUseAmount
dei:LegalEntity

us-gaap:PrepaidExpenseCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:PrepaidExpenseCurrentAndNoncurrent
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmountOfConstructionWorkInProcessIncludedInRateBase
dei:LegalEntity, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:PublicUtility

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentCommon
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:ConsolidatedEntities
us-gaap:PublicUtility

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentDistribution
us-gaap:PublicUtility
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentFuel
us-gaap:PublicUtility
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
us-gaap:PublicUtility

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentNet
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantInService
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentTransmission
us-gaap:PublicUtility
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution
us-gaap:ConsolidatedEntities, us-gaap:PublicUtility
us-gaap:PublicUtility

us-gaap:RatioOfIndebtednessToNetCapital1
dei:LegalEntity

us-gaap:RegulatoryAssets
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:EnvironmentalRemediationContingency
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:EnvironmentalRemediationSite
dei:LegalEntity, us-gaap:EnvironmentalRemediationContingency
dei:LegalEntity, us-gaap:EnvironmentalRemediationSite
us-gaap:EnvironmentalRemediationContingency
us-gaap:EnvironmentalRemediationSite

us-gaap:RegulatoryAssetsCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RegulatoryAsset
dei:LegalEntity, us-gaap:RegulatoryAsset
us-gaap:ConsolidatedEntities
us-gaap:RegulatoryAsset

us-gaap:RegulatoryAssetsNoncurrent

us-gaap:RegulatoryLiabilities
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:EnvironmentalRemediationContingency
us-gaap:EnvironmentalRemediationContingency

us-gaap:RegulatoryLiabilityCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RegulatoryLiability
dei:LegalEntity, us-gaap:RegulatoryLiability
us-gaap:ConsolidatedEntities
us-gaap:RegulatoryLiability

us-gaap:RegulatoryLiabilityNoncurrent

us-gaap:RestrictedCashAndCashEquivalents
us-gaap:Collateral, us-gaap:StatementBusinessSegments

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue

us-gaap:RestrictedCashAndInvestmentsCurrent
dei:LegalEntity, us-gaap:PublicUtility, us-gaap:StatementScenario
us-gaap:RetainedEarningsAppropriated
dei:LegalEntity, us-gaap:Range, us-gaap:StatementScenario, us-gaap:PublicUtility
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:PublicUtility

us-gaap:RevenueRemainingPerformanceObligation
dei:LegalEntity, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
dei:LegalEntity, us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType
us-gaap:AwardType, us-gaap:PlanName
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased

us-gaap:ShortTermBorrowings
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:StatementBusinessSegments
us-gaap:DebtInstrument
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ShortTermDebtType
us-gaap:ShortTermDebtWeightedAverageInterestRate
dei:LegalEntity, us-gaap:ShortTermDebtType
us-gaap:ShortTermDebtType
us-gaap:TaxCreditCarryforward
us-gaap:TaxCreditCarryforwardAmount

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnbilledContractsReceivable

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Income Tax Expense Benefit
Balance Sheet
Goodwill
Assets
Operating Lease Right Of Use Asset
Current Assets
Other Assets Current
NonCurrent Assets
Goodwill
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Dividends Payable Current And Noncurrent
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Accounts Receivable
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock█▁▁353.0342.0342.0NA334.0334.0333.0NANANA321.0NANANA310.0NANANA305.0NANANA293.0NANANA293.0NANANA293.0NANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁346.2343.0NA335.4335.0334.6NA333.2329.2323.4NA312.3311.9311.6NA309.3306.8306.3NA305.9300.4294.8NA294.2294.0293.9NA294.0294.0294.1NA294.3294.3294.2NA294.6294.4294.5NA294.6294.3293.6NA284.6283.5282.7
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁345.4342.2NA334.5334.1333.6NA332.2328.3322.5NA311.1310.8310.4NA307.8305.4305.1NA304.5299.1293.7NA292.9292.9292.9NA292.9292.9292.9NA292.9292.9292.9NA292.9292.9292.9NA292.9292.7292.0NA283.0282.0281.4
us-gaap:EarningsPerShareBasic ▃▆▁▇▃▆▅▇▃▆▅▇▃▇█▇▃▆▄█▄▅▃▇▄▆▂▇▄▆▄█▃▃▄▇▄▅▃▆▃▅▄▆▃▄0.481.230.12000000000000011.470.571.130.88999999999999971.420.461.311.04999999999999981.40.61.381.63999999999999971.480.571.270.68000000000000021.630.781.050.60000000000000011.460.751.260.27999999999999981.490.731.230.791.580.590.660.69999999999999971.50.730.950.64999999999999991.310.571.070.80000000000000031.240.650.8
us-gaap:EarningsPerShareDiluted ▃▆▁▇▃▆▅▇▃▇▅▇▃▇█▇▃▆▄█▄▅▃▇▄▆▂▇▄▆▄█▃▃▄▇▄▅▃▆▃▅▄▆▃▄0.481.220.119999999999999661.470.571.120.89000000000000011.420.461.311.04999999999999981.390.61.371.63000000000000031.480.571.270.66000000000000011.620.771.050.58999999999999991.450.741.260.271.480.721.230.79999999999999981.580.590.650.69999999999999971.490.730.940.64999999999999991.30.561.060.791.230.640.8
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 COGS Ratio dei:LegalEntity,us-gaap:ProductOrService ed:ConsolidatedEdisonCompanyofNewYorkInc.,us-gaap:OilAndGasPurchasedNA973.0527.0259.0416.0834.0527.0275.0408.0921.0538.0264.0435.0841.0480.0268.0388.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:Subsidiaries,us-gaap:OilAndGasPurchased449.0NANANA416.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService us-gaap:OilAndGasPurchased▃█▄▁▂▇▄▁▂█▄▁▃▇▃▁▂490.01076.0596.0289.0453.0931.0601.0306.0449.01034.0601.0298.0489.0939.0540.0296.0435.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 EBT Margin dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.NA3205.02575.02872.02345.02854.02573.02877.02331.03039.02559.02899.02338.02884.02520.02799.02293.02856.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 EBT Margin us-gaap:ConsolidatedEntities srt:Subsidiaries2486.0NANANA2345.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.NA3205.02575.02872.02345.02854.02573.02877.02331.03039.02559.02899.02338.02884.02520.02799.02293.02856.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidatedEntities srt:Subsidiaries2486.0NANANA2345.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _▃▇▄▇▃▇▄▇▃▆▅▇▃▆▄▇▃▆▃█▄▅▃▇▃▆▁▇▃▅▃▇▂▄▃▇▃▄▃▆▃▅▃418.0860.0507.0860.0479.0808.0565.0867.0458.0786.0657.0826.0426.0755.0544.0873.0423.0771.0478.0940.0515.0642.0399.0830.0472.0726.0250.0819.0455.0685.0477.0855.0386.0526.0453.0851.0475.0561.0458.0756.0398.0626.0493.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTax NA423.030.0495.0190.0380.0286.0474.0153.0428.0333.0437.0190.0432.0505.0458.0176.0387.0211.0498.0233.0310.0180.0429.0220.0375.0NANANANA255.0466.0174.0195.0204.0442.0213.0287.0168.0388.0170.0317.0232.0354.0187.0232.0
 us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.NA465.0219.0405.0153.0407.0270.0415.0152.0412.0227.0431.0150.0389.0221.0402.0143.0339.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ComprehensiveIncomeNetOfTax us-gaap:ConsolidatedEntities srt:Subsidiaries128.0NANANA153.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService ed:ConsolidatedEdisonCompanyofNewYorkInc.,srt:FuelNA93.032.024.023.078.044.031.026.0106.062.039.038.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService ed:ConsolidatedEdisonCompanyofNewYorkInc.,us-gaap:ElectricityPurchasedNA396.0367.0447.0345.0273.0299.0423.0313.0322.0316.0472.0343.0303.0305.0400.0363.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService ed:ConsolidatedEdisonCompanyofNewYorkInc.,us-gaap:OilAndGasOperationAndMaintenanceNA608.0555.0597.0549.0569.0613.0712.0651.0659.0629.0666.0629.0630.0642.0655.0602.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService ed:ConsolidatedEdisonCompanyofNewYorkInc.,us-gaap:OilAndGasPurchasedNA233.0128.038.064.0195.0161.052.076.0317.0186.066.0118.0273.0138.058.084.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:Subsidiaries,srt:Fuel29.0NANANA23.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:Subsidiaries,us-gaap:ElectricityPurchased417.0NANANA345.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:Subsidiaries,us-gaap:OilAndGasOperationAndMaintenance590.0NANANA549.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities,us-gaap:ProductOrService srt:Subsidiaries,us-gaap:OilAndGasPurchased63.0NANANA64.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService srt:Fuel▂▇▂▁▁▆▃▂▁█▄▂▂29.093.032.024.023.078.044.031.026.0106.062.039.038.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:ElectricityPurchased▆▅▄▇▃▁▂▆▂▃▂█▃▂▂▅▄463.0437.0408.0503.0380.0308.0343.0483.0352.0368.0357.0545.0388.0353.0348.0460.0408.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:OilAndGasOperationAndMaintenance▆▅▂▃▁▂▄█▅▆▄▆▄▇█▆▃804.0790.0698.0736.0680.0700.0753.0847.0781.0794.0763.0797.0756.0836.0856.0811.0732.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:OilAndGasPurchased▂▅▃▁▁▄▄▂▂█▆▃▄▇▄▂▃83.0296.0163.055.077.0232.0209.098.0131.0442.0305.0164.0194.0378.0224.0115.0149.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▂▅▁▆▃▅▄▆▃▆▅▆▃▆▄▇▄▆▄█▄▅▃▇▄▆▂▇▄▆▄▇▃▃▄▇▄▅▄▆▃▅▄▆▄▄107.0498.0-44.0621.0211.0447.0366.0619.0198.0553.0402.0610.0226.0545.0378.0727.0277.0615.0302.0811.0356.0474.0233.0677.0320.0569.091.0695.0314.0559.0337.0714.0237.0249.0306.0701.0320.0414.0316.0611.0251.0483.0350.0558.0292.0351.0
us-gaap:IncomeTaxExpenseBenefit ▃▄▂▅▃▄▄▅▃▅▄▆▄▅▁▇▅▇▅█▅▆▄▇▅▆▃▇▅▆▅▇▄▄▅▇▅▅▅▇▄▆▅▆▅▅-11.078.0-93.0119.09.055.053.0116.019.0108.071.0175.038.0117.0-127.0270.0102.0227.096.0314.0124.0164.057.0249.0101.0199.09.0259.0102.0198.0103.0250.065.057.099.0261.0106.0134.0123.0225.083.0169.0115.0205.0106.0122.0
 us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.NA114.016.097.07.095.064.0119.027.0124.052.0125.031.0119.0134.0242.091.0218.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity,us-gaap:ConsolidatedEntities ed:ConsolidatedEdisonCompanyofNewYorkInc.,srt:Subsidiaries-16.0NANANA7.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidatedEntities srt:Subsidiaries-16.0NANANA7.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxesPaidNet ▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▃▃▅▁▃▅▄█2.0-15.07.09.020.02.02.0-13.0-18.03.01.01.011.0-13.05.01.04.0-39.0-36.0-2.01.0-143.0-29.02.0188.0-197.0-2.0117.0102.0416.0NANANANANANANANANANANANANANANANA
us-gaap:InterestExpense ▅▁▃▃▄█▃▅261.0176.0222.0226.0247.0322.0219.0262.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestExpenseDebt █▇█▇█▇█▇▇▇▆▅▅▅▄▄▄▄▃▃▃▃▃▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▂230.0227.0230.0227.0234.0224.0228.0220.0219.0221.0204.0195.0190.0190.0187.0183.0179.0178.0174.0174.0167.0163.0163.0157.0156.0156.0149.0145.0147.0146.0145.0145.0145.0143.0146.0146.0149.0145.0145.0145.0146.0147.0147.0152.0148.0150.0
us-gaap:InterestPaidNet █▁█▃▆▂▇▂▇▂▆▂▆▁▅341.0112.0337.0163.0277.0143.0300.0154.0292.0130.0286.0130.0265.0124.0246.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▃▇▁█▃▆▅█▃▇▅▇▃▇█▇▃▆▃█▄▅▃▇▄▆▂▇▄▆▄▇▃▃▃▇▄▅▃▆▃▅▄▆▃▄165.0419.043.0493.0190.0375.0295.0473.0152.0424.0331.0435.0188.0428.0505.0457.0175.0388.0206.0497.0232.0310.0176.0428.0219.0370.082.0436.0212.0361.0234.0464.0172.0192.0207.0440.0214.0280.0193.0386.0168.0314.0235.0353.0186.0229.0
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▁▅▆▆▆▇▇██▇▅▅▅▅-47.01.06.09.012.017.018.030.027.021.00.00.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NonoperatingIncomeExpense ▆▄▁▇▇▆▇▇▇▇▆▇▇▇▇███▇█▇▇▇▇▇▇▇█▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇-50.0-186.0-329.0-13.0-21.0-39.020.014.03.014.0-33.0-11.0-3.0-15.018.039.034.025.03.049.011.01.01.09.010.04.0-3.026.09.010.04.05.02.02.02.02.0-2.03.04.0-1.05.09.010.010.012.08.0
 us-gaap:NonoperatingIncomeExpense dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.NA-23.0-33.0-38.0-40.0-61.0-4.0-9.0-15.0-7.0-44.0-33.0-35.0-31.0109.0-36.0-35.0-31.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NonoperatingIncomeExpense us-gaap:ConsolidatedEntities srt:Subsidiaries-23.0NANANA-40.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingExpenses ▄▆▃▃▁▃▂▃▂▅▃▃▁▄▃▂▁▃▁▄▂▃▂▄▂▆▄▄▃█▂▄▃▅▃▄▂▃▃▆▄▅▄▇▄▇2553.02817.02453.02473.02240.02426.02386.02498.02286.02728.02423.02502.02270.02609.02417.02338.02211.02457.02229.02581.02279.02514.02308.02613.02316.02890.02578.02571.02501.03104.02390.02629.02432.02658.02448.02587.02296.02517.02508.02873.02595.02723.02647.03002.02588.02970.0
us-gaap:OperatingIncomeLoss ▃▇▄▇▃▇▄▇▃▆▅▇▃▆▄▇▃▆▃█▄▅▃▇▃▆▁▇▃▅▃▇▂▄▃▇▃▄▃▆▃▅▃▆▃▃418.0860.0507.0860.0479.0808.0565.0867.0458.0786.0657.0826.0426.0755.0544.0873.0423.0771.0478.0940.0515.0642.0399.0830.0472.0726.0250.0819.0455.0685.0477.0855.0386.0526.0453.0851.0475.0561.0458.0756.0398.0626.0493.0705.0429.0492.0
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▅▃▅▅▆▄▅▅▅▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▆▁▅▅▅█▅▅▅▄▅▅▆▁▅▅2.04.0-13.02.00.05.0-9.01.01.04.02.02.02.04.00.01.01.0-1.05.01.01.00.04.01.01.05.0-26.01.01.04.021.02.02.03.0-3.02.0-1.07.0-25.02.02.0NANANANANA
us-gaap:OtherIncome ▃▃▃▃▂▂▅▃▂▄▁▃▃▃▂▆▅▂▁█▃▂7.06.08.08.04.02.019.010.04.011.0-1.07.06.06.04.020.017.05.01.031.08.04.0NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▂▇▁█▃▆▅█▃▇▅▇▃▇118.0420.049.0502.0202.0392.0313.0503.0179.0445.0331.0435.0188.0428.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▃▇▃▅▁▄▃▅▁▅▂▅▁▅▃▅▁▅▂▆▂▄▂▆▂▇▂▆▃█▃▆▂▄▃▆▂▄▃▇▃▅▄█▄▆2950.03602.02903.03338.02627.03157.02880.03337.02604.03328.02811.03298.02582.03333.02961.03211.02633.03228.02707.03417.02794.03156.02707.03443.02788.03616.02828.03390.02911.03789.02867.03484.02818.03184.02901.03438.02771.03078.02966.03629.02993.03349.03140.03707.03017.03462.0
us-gaap:Revenues ▃▇▃▅▂▅▃▅▂▆▃▅▁▅▃▄▁▅▁▆▂▄▁▆▂▇▂▆▃█▂▆▂▄▃▆▂▄▃▇▃▅▄█▃▆2971.03677.02960.03333.02719.03234.02951.03365.02744.03514.02949.03328.02696.03364.02961.03211.02633.03228.02707.03417.02794.03156.02707.03443.02788.03616.02828.03390.02911.03789.02867.03484.02818.03184.02901.03438.02771.03078.02966.03629.02993.03349.03140.03707.03017.03462.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ███▇▇▇▇▆▆▆▆▅▄▄▄▄▄▄▄▄▄▃▄▃▃▃▃▂▂▂▂▃▃▂▂▂▂▂▂▁▁▁▁62919.062299.062895.059595.059081.059159.058079.055940.055602.055066.053920.049544.049064.048900.048111.049246.049099.048365.048255.047316.047270.045580.045642.044971.044751.043977.044308.040667.040311.040481.040647.041964.041922.041736.041209.039633.040049.039701.039214.036535.036019.036186.036146.0NANANA
 us-gaap:Liabilities us-gaap:ConsolidatedEntities srt:ParentCompanyNANA1713.0NANANA1147.0NANANA1621.0NANANA617.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesAndStockholdersEquity ███▇▇▇▇▆▆▆▆▅▄▄▄▄▄▄▄▄▄▃▄▃▃▃▃▂▂▂▂▃▃▂▂▂▂▂▂▁▁▁▁62919.062299.062895.059595.059081.059159.058079.055940.055602.055066.053920.049544.049064.048900.048111.049246.049099.048365.048255.047316.047270.045580.045642.044971.044751.043977.044308.040667.040311.040481.040647.041964.041922.041736.041209.039633.040049.039701.039214.036535.036019.036186.036146.0NANANA
us-gaap:StockholdersEquity █▇▇▇▇▇▆▆▆▆▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▁▁▁▁▁▁19743.019033.018847.018494.018225.018261.018022.017959.017709.017369.016726.015887.015648.015654.015418.015102.014490.014498.014298.014267.013950.013193.013052.013040.012788.012761.012576.012707.012455.012426.012245.0NA11883.011889.011869.011842.011579.011545.011649.011667.011464.011444.011274.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▇▆█▅▆▇▅▃▃▃▄▂▂▃▃▁▂▁▂▁▂▂▄▂▃▂▄▃▂▂▄▃▄▄▂▂▄▄▃▂▂▃▃5110.04587.05301.04204.04564.05026.04272.03581.03707.03781.03864.03356.03436.03773.03537.03096.03280.03017.03406.03154.03499.03185.03836.03505.03679.03398.03854.03519.03457.03484.03891.03704.04103.03934.03451.03240.04102.03904.03638.03458.03209.03590.03507.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▆▁▇▁▇█▆▁▅▃▅▂▅▄▅▁▅▁▅▁▅▁▆▁▄▁▄▂▅▁▄▁▅▁▃▁█▅▄▃▃▃▂▂▂▁1067.076.01272.0153.01144.01395.0981.078.0831.0406.0895.0199.0866.0651.0797.069.0816.067.0776.0150.0862.061.0944.091.0709.0117.0699.0205.0774.0102.0674.074.0747.0132.0394.069.01381.0769.0648.0398.0492.0516.0338.0198.0178.087.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▆▁▇▂▇█▆▂▅▃▅▂▅▄▅▁▅▁▄1178.0157.01436.0314.01345.01574.01217.0253.0970.0474.01006.0245.0921.0683.0844.0110.0842.0102.0830.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▆█▆▅▄▄▃▃▂▄▃▄▂▃▂▂▁▃▂▂▁▂▂▃▂▄▃▃▃▅▃▃▃▄▃▄▂▂▂▃▂▃▃1709.01949.01701.01510.01332.01318.01236.01254.01099.01309.01267.01350.01097.01250.01103.01111.0984.01175.01106.01157.0951.01085.01052.01194.01084.01444.01201.01280.01221.01566.01251.01273.01211.01357.01222.01319.01034.01069.01123.01177.01101.01178.01173.0NANANA
us-gaap:OtherAssetsCurrent █▄▅▄▅▃▄▃▂▄▂▁▂▁▄▄▃▂▄▄▆▃▄▄▅▆▆█▅▆▅▄▃▃▅▄▅▄▃▃▄▄▃326.0210.0231.0208.0230.0166.0200.0151.0120.0177.0122.091.0123.086.0189.0199.0174.0122.0205.0206.0269.0157.0191.0178.0223.0263.0278.0338.0224.0265.0235.0179.0164.0161.0232.0207.0215.0205.0159.0153.0176.0202.0171.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ConstructionInProgressGross ▅█▇▆▅▅▄▃▂▂▂▆▆▆▆▆█▇▇▅▇▆▃▅▅▃▂▂▂▁▁▁▂▂▂▄▁▁▁▁▁▁▁482.0746.0638.0527.0407.0446.0309.0203.0168.0124.0169.0566.0592.0550.0551.0615.0779.0687.0689.0421.0712.0607.0244.0425.0403.0187.0113.082.0108.068.036.029.0102.0160.083.0400.048.039.039.061.054.037.023.0NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ███▇▇▆▆▅▅▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▁▂▂▂▁▂▂▁▁▁▁▁▁▁▁▁▁▁▁555.0555.0522.0489.0456.0423.0391.0357.0329.0296.0275.0248.0233.0217.0201.0185.0170.0155.0140.0122.0114.0105.095.090.085.095.091.087.084.097.090.084.078.073.068.066.064.061.059.057.055.053.051.0NANANA
us-gaap:PropertyPlantAndEquipmentNet ███▇▇▇▇▇▇▆▆▆▅▅▅▅▅▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁47339.047069.046555.045564.044897.044435.043889.043234.042745.042152.041749.039383.038767.038075.037600.036728.036251.035663.035216.033906.033459.032971.032209.031473.030923.030212.029827.029239.028754.028682.028436.027955.027542.027283.026939.026324.025734.025353.025093.024698.024414.024068.023863.0NANANA
us-gaap:LongTermInvestments ▆▆▇████▇▇▇▇███▇▇▇▇▇▇▇▃▃▃▃▃▃▃▂▂▂▂▁▁▂▂▂▁▂▂▁▁▁1688.01654.01816.02124.02080.02011.02065.01983.01899.01832.01766.02131.02057.02012.02001.01977.01961.01914.01921.01931.01913.0865.0884.0874.0848.0814.0816.0740.0693.0547.0461.0444.0313.0351.0467.0462.0451.0440.0455.0474.0426.0413.0403.0NANANA
us-gaap:Goodwill ████████▆▆▆▅▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁446.0446.0446.0446.0446.0446.0446.0446.0440.0440.0440.0439.0428.0428.0428.0428.0428.0428.0428.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0429.0NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▇▇▇▇▇▇█████▂▂▂▂▁▁▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1340.01434.01460.01485.01510.01532.01557.01580.01605.01630.01654.0132.0127.0129.0131.0114.0116.0122.0124.00.02.02.02.03.03.03.03.03.03.04.04.04.04.02.02.03.03.03.03.03.03.03.03.0NANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:BusinessAcquisition ed:PowerPurchaseNANA1457.0NANANA1554.0NANANA1712.0NANANA131.0NANANA119.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:OtherIntangibleAssetsNANA3.0NANANA3.0NANANA3.0NANANA0.0NANANA5.0NANANA2.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ██████████▁818.0837.0837.0844.0853.0848.0857.0834.0842.0852.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▇▇█▆▆▆▇▆▆▆▆▄▄▅▄▆▆▇▆▇▇▇▇▇███▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁8782.08989.09223.07703.07540.07687.07853.07142.07251.07301.06541.04674.04804.05040.04973.07445.07607.07771.07712.08325.08399.08559.08713.09119.09301.09553.09811.0185.0193.0253.0225.0238.0227.0253.0216.0278.0252.0296.0259.0267.0277.0309.0298.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent ▅▅█▆▃▃▅▄▃▃▅▅▄▅▆▄▃▃▅▄▃▂▃▄▁▂▃▃▃▄▃▂▃▄▅▃▁▁▃▄▃▃▅1217.01208.01475.01279.01018.01015.01164.01082.0994.01010.01187.01173.01130.01236.01286.01057.0973.0963.01147.01113.0969.0909.01008.01092.0845.0937.01019.0972.0967.01079.01017.0925.0997.01065.01215.0968.0813.0844.0961.01062.01033.0967.01151.0NANANA
us-gaap:LiabilitiesCurrent ▅▇██▇▇▇▆▆▇▆▅▅▆▅▃▄▃▃▃▃▄▄▄▃▂▃▃▃▃▄▄▄▄▃▃▄▃▂▂▁▁▁5557.06559.07354.07160.06705.06311.06287.06219.05969.06348.06207.05401.05456.05651.04902.03915.04329.03441.03843.03591.03903.04436.04720.04429.03935.03407.03781.03873.03839.03576.04730.04373.04504.04243.03945.03724.04380.03840.02987.02959.02473.02676.02366.0NANANA
 us-gaap:LongTermDebtCurrent us-gaap:ConsolidatedEntities srt:ParentCompanyNANA1178.0NANANA3.0NANANA3.0NANANA2.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NotesPayableCurrent ▄▇▇▄█▅▇▆▅▆█▆▃▆▂▁▄▃▄▂▃▅▇▅▅▂▃1052.01581.01705.01009.01813.01208.01692.01300.01161.01435.01741.01352.0869.01389.0577.0356.01036.0836.01054.0601.0708.01199.01529.01160.01245.0519.0800.0NANANA1451.0NA1400.01021.0539.0340.0800.0NANANANANANANANANA
us-gaap:OperatingLeaseLiabilityCurrent ██▇▇▆▆▅▅▅▄▁109.0106.096.090.083.077.065.059.055.050.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▄▃▄▄▃▂▄▃▃▂▃▂▂▂▄▃▄▁▂█▇▆▆▅▆▅▆▄▄▄▅▆▆▅▆▆▅▄▅▅█▅▅369.0358.0426.0394.0338.0285.0371.0341.0327.0264.0363.0295.0272.0262.0386.0358.0367.0216.0297.0638.0594.0529.0525.0463.0489.0473.0508.0418.0371.0404.0478.0491.0490.0483.0542.0489.0461.0405.0468.0460.0622.0457.0449.0NANANA
us-gaap:TaxesPayableCurrent ▂▂▃▂▁▁▂▁▁▁▁▁▁▁▂▁▁▁▂▁▁▁▁▁▁▂▂▁▂▂█▆▆▃▃▂▃▄▃▃▃▂▂121.0115.0150.089.053.031.076.035.047.043.061.048.045.047.0108.043.042.038.064.041.046.051.062.053.052.080.072.048.069.098.0476.0379.0322.0144.0162.0108.0154.0229.0188.0166.0156.070.090.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebt NANA22349.0NANANA19973.0NANANA18145.0NANANA16029.0NANANA14774.014093.014493.012961.012745.012282.012385.012190.012191.011195.011129.011623.010974.010976.010977.010959.010768.0NANA11071.010673.0NANANA10676.0NANANA
us-gaap:LongTermDebtNoncurrent █▇▇▇▇▇▆▆▆▅▆▄▄▄▄▄▄▄▄▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁21666.020614.020382.019206.019149.019423.018527.017537.017496.016933.017495.015480.015225.014730.014731.014651.014703.014829.014735.013747.013747.012222.012006.011521.011925.011694.011631.010985.011084.011338.010489.010493.010494.010554.010062.09839.09840.010041.010143.010369.010669.010670.010671.0NANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ▃▃▄▁▂▂▂▁▂▂▂▁▁▂▂▂▃▃▃▃▄▄▅▅▆▆▆▂▂▂▃▆▇▇█▇▇██▄▄▄▅1925.02074.02257.0760.01205.01329.01516.0810.01120.01231.01228.0804.0959.01192.01443.01443.01652.01836.01847.02197.02423.02599.02911.03068.03420.03629.03914.01106.01291.01502.01727.03816.04333.04438.04678.04039.04385.04605.04835.02600.02666.02659.03287.0NANANA
us-gaap:MinorityInterest █▇▆▆▆▆▅▅▄▄▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁310.0249.0218.0217.0216.0206.0191.0175.0156.0132.0113.011.07.07.07.08.08.08.08.08.08.08.09.09.09.09.09.09.0NANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▇▇▇███████▁750.0763.0764.0807.0811.0799.0809.0819.0821.0825.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity █▇▇▇▇▇▆▆▆▆▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▁▁▁▁▁▁19743.019033.018847.018494.018225.018261.018022.017959.017709.017369.016726.015887.015648.015654.015418.015102.014490.014498.014298.014267.013950.013193.013052.013040.012788.012761.012576.012707.012455.012426.012245.0NA11883.011889.011869.011842.011579.011545.011649.011667.011464.011444.011274.0NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest █▇▇▇▇▇▆▆▆▆▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁20053.019282.019065.018711.018441.018467.018213.018134.017865.017501.016839.015898.015655.015661.015425.015110.014498.014506.014306.014275.013958.013201.013061.013049.012797.012770.012585.012716.012455.012426.012245.012166.011883.011889.011869.0NANANA11436.0NANANANANANANA
 us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities srt:ParentCompanyNANA10003.0NANANA9933.0NANANA9575.0NANANA9088.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax NANA-25.0NANANA-19.0NANANA-16.0NANANA-26.0NANANA-27.0NANANA-34.0-38.0-39.0-40.0-45.0-19.0-20.0-21.0-25.0-46.0-48.0-50.0-53.0NANANA-58.0NANANA-40.0NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.NANA-7.0NANANA-6.0NANANA-5.0NANANA-6.0NANANA-7.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest █▇▆▆▆▆▅▅▄▄▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁310.0249.0218.0217.0216.0206.0191.0175.0156.0132.0113.011.07.07.07.08.08.08.08.08.08.08.09.09.09.09.09.09.0NANANANANANANANANANANANANANANANANANA
us-gaap:StockIssuedDuringPeriodValueNewIssues 775.0NANANA0.088.0NANA400.0425.0705.0NANANANA343.0NANANANA702.0NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue 34.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders █▁4.03.0NA8.02.02.0NA11.03.02.0NANA0.00.0NANA0.00.0NANA0.01.0NANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities █▂▆▁▅▃█▃▇▃▇▄▆▁█▄█▃█▅█▄1104.0289.0830.0188.0768.0412.01174.0422.01074.0464.01095.0560.0897.0143.01140.0653.01126.0448.01123.0705.01107.0524.0NANANANANANANANA1314.0265.01057.0-84.0961.0391.0845.0402.0976.0572.01227.0362.01407.0179.0794.01.0
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▆▇▇▇▇▇▇▇▁▇▇▇▆▇▇█▆█▄▆-904.0-1096.0-1240.0-1052.0-964.0-968.0-898.0-1008.0-988.0-888.0-2524.0-1081.0-957.0-909.0-1131.0-869.0-866.0-837.0-1259.0-731.0-1868.0-1118.0NANANANANANANANA-764.0-683.0-549.0-663.0-656.0-762.0-615.0-490.0-539.0-482.0-633.0-496.0-609.0-559.0-547.0-460.0
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.NA-902.0-1004.0-838.0-788.0-786.0-687.0-846.0-841.0-750.0-808.0-871.0-819.0-808.0-879.0-739.0-727.0-733.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▂▆▂▃▅▄▂▄▂█▂▃▄▄▁▄▂▅▁▆▂821.0-472.01532.0-167.0-33.0913.0688.0-131.0410.0-108.02190.0-155.0298.0605.0719.0-531.0489.0-320.0762.0-690.01560.0-287.0NANANANANANANANA50.0-255.0107.0485.020.0-941.0382.0209.0-187.0-184.0-618.0312.0-658.0400.0-156.0286.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▁█▂▄▆█▃▆▃▇▃▅▄▇▃▇▃1021.0-1279.01122.0-1031.0-229.0357.0964.0-717.0496.0-532.0761.0-676.0238.0-161.0734.0-732.0740.0-728.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▂▃▁▄▃▃▃▄▃▄▄▄▃▄▁▅▄▅▅▅▄▄▄▅▃▄▄▅▂▅▂▅▂▂▅▅▃▃▄▄▂▅▄█▃▃-47.077.0-99.0123.01.060.051.0131.018.0108.0100.0153.054.0101.0-141.0267.0103.0256.0259.0256.094.0174.0187.0264.024.0178.094.0262.0-33.0195.0-76.0250.0-47.0-87.0240.0198.078.068.0123.0187.0-51.0232.097.0516.09.037.0
 us-gaap:DeferredIncomeTaxExpenseBenefit dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.NA113.0-33.0154.0-47.094.0-116.0154.0-32.0122.08.0197.041.0108.09.0240.092.0234.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncreaseDecreaseInAccountsPayable ▅▁▆▇▄▁▅▅▃▂▃▅▂▄▆▅▄▃▂▇▅▃▁█▂▃▃▅▂▆▅▃▃▃▆▆▄▃▂▄▅▁▅▄▄▂33.0-178.0151.0187.0-12.0-156.077.089.0-48.0-108.0-38.053.0-91.030.0149.040.0-16.0-78.0-113.0163.063.0-84.0-162.0241.0-100.0-58.0-63.033.0-92.0113.075.0-72.0-37.0-84.093.0107.0-11.0-78.0-145.026.078.0-154.083.0-26.021.0-100.0
us-gaap:IncreaseDecreaseInAccountsReceivable ▃█▇▇▅▆▄▆▂▅▃▇▃▆▅▆▃▅▄▇▃▅▃▆▂▇▄▅▁█▄▅▃▆▄█▄▄▄▅▄▅▅▆▃▆-146.0281.0221.0209.026.087.0-15.0157.0-208.043.0-106.0251.0-152.0147.07.0127.0-194.066.0-69.0239.0-131.030.0-178.0117.0-278.0243.0-79.059.0-339.0315.0-22.062.0-146.0135.0-97.0285.0-35.0-54.0-54.076.0-77.05.012.086.0-111.0139.0
 us-gaap:IncreaseDecreaseInAccountsReceivable dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.NA269.0227.0183.028.078.0-5.0145.0-179.036.0-65.0232.0-140.0126.03.0107.0-179.054.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncreaseDecreaseInInventories ▆▅▅▆▆▄▅▆▆▄▆▆▆▄▅▄▇▄▅▆▄▅▆▆▅▄▆▆▆▃▅▇▇▃▄▆▆▄▄██▁▅▇▆▃22.0-17.03.017.010.0-26.0-6.014.017.0-31.016.020.017.0-33.0-3.0-20.044.0-26.02.014.0-21.0-8.010.016.0-8.0-40.029.021.020.0-60.0-5.047.051.0-60.0-25.018.012.0-31.0-19.065.065.0-103.0-16.036.025.0-52.0
us-gaap:NetCashProvidedByUsedInOperatingActivities █▂▆▁▅▃█▃▇▃▇▄▆▁█▄█▃█▅█▄1104.0289.0830.0188.0768.0412.01174.0422.01074.0464.01095.0560.0897.0143.01140.0653.01126.0448.01123.0705.01107.0524.0NANANANANANANANA1314.0265.01057.0-84.0961.0391.0845.0402.0976.0572.01227.0362.01407.0179.0794.01.0
us-gaap:NetIncomeLoss ▃▇▁█▃▆▅█▃▇▅▇▃▇█▇▃▆▃█▄▅▃▇▄▆▂▇▄▆▄▇▃▃▃▇▄▅▃▆▃▅▄▆▃▄165.0419.043.0493.0190.0375.0295.0473.0152.0424.0331.0435.0188.0428.0505.0457.0175.0388.0206.0497.0232.0310.0176.0428.0219.0370.082.0436.0212.0361.0234.0464.0172.0192.0207.0440.0214.0280.0193.0386.0168.0314.0235.0353.0186.0229.0
us-gaap:ProfitLoss ▂▇▁█▃▆▅█▃▇▅▇▃▇118.0420.049.0502.0202.0392.0313.0503.0179.0445.0331.0435.0188.0428.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▆▇▇▇▇▇▇▇▁▇▇▇▆▇▇█▆█▄▆-904.0-1096.0-1240.0-1052.0-964.0-968.0-898.0-1008.0-988.0-888.0-2524.0-1081.0-957.0-909.0-1131.0-869.0-866.0-837.0-1259.0-731.0-1868.0-1118.0NANANANANANANANA-764.0-683.0-549.0-663.0-656.0-762.0-615.0-490.0-539.0-482.0-633.0-496.0-609.0-559.0-547.0-460.0
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.NA-902.0-1004.0-838.0-788.0-786.0-687.0-846.0-841.0-750.0-808.0-871.0-819.0-808.0-879.0-739.0-727.0-733.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▂▆▂▃▅▄▂▄▂█▂▃▄▄▁▄▂▅▁▆▂821.0-472.01532.0-167.0-33.0913.0688.0-131.0410.0-108.02190.0-155.0298.0605.0719.0-531.0489.0-320.0762.0-690.01560.0-287.0NANANANANANANANA50.0-255.0107.0485.020.0-941.0382.0209.0-187.0-184.0-618.0312.0-658.0400.0-156.0286.0
us-gaap:ProceedsFromIssuanceOfLongTermDebt █▂▆▁▁█▅▁▆▅▆▂█▁▄▁▃▃▅▁█▂▅▁▂▁▅▁▁▅▁▁▂▄▁▁▁▃1538.0250.01250.075.00.01600.01028.00.01164.0825.01125.0265.01640.00.0700.00.0500.0497.0825.00.01547.0218.0909.00.0238.00.01000.00.00.0850.00.00.0219.0700.00.00.00.0400.0NANANANA225.0170.0NANA
us-gaap:RepaymentsOfLongTermDebt █▅▁▁▃▁▄▁▅▁▅▅▅▁▁▁▁▃▃▃▁▁▃▂▁▁▁▁▃▂▁▁▂▄▁▃▁▁▁▁▁▁▂▃▃▁1187.0695.055.021.0404.038.0493.045.0646.011.0619.0700.0609.010.05.03.018.0408.0328.0401.05.01.0355.0100.045.00.02.00.0278.0200.02.01.0197.0509.01.0302.01.01.01.00.02.01.0230.0355.0381.045.0
us-gaap:PaymentsOfDividendsCommonStock ██▇▇▇▇▇▇▆▆▅▅▅▅▄▄▄▄▄▄▄▃▂▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁254.0253.0244.0244.0244.0243.0234.0235.0229.0226.0211.0211.0211.0209.0203.0202.0199.0199.0193.0192.0193.0185.0173.0180.0190.0190.0186.0185.0184.0184.0181.0180.0180.0180.0185.0175.0174.0175.0174.0173.0173.0173.0161.0157.0156.0155.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStock


Common
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value353342342334334333321310305293293293
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value346343335335334333329323312311311309306306305300294294294293294294294294294294294294294294294293284283282
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value345342334334333332328322311310310307305305304299293292292292292292292292292292292292292292292292283282281
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.481.230.121.470.571.130.891.420.461.311.051.40.61.381.641.480.571.270.681.630.781.050.61.460.751.260.281.490.731.230.791.580.590.660.71.50.730.950.651.310.571.070.81.240.650.8
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.481.220.121.470.571.120.891.420.461.311.051.390.61.371.631.480.571.270.661.620.771.050.591.450.741.260.271.480.721.230.81.580.590.650.71.490.730.940.651.30.561.060.791.230.640.8
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value42330495190380286474153428333437190432505458176387211498233310180429220375255466174195204442213287168388170317232354187232
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.70.014.87.212.00.014.25.912.90.013.37.413.00.014.36.712.00.014.68.39.80.012.57.910.40.013.46.26.10.012.97.79.30.010.75.79.50.09.56.26.7

us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Comprehensive
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value465219405153407270415152412227431150389221402143339
Percentage of ComprehensiveIncomeNetOfTax109.9730.081.880.5107.194.487.699.396.368.298.678.990.043.887.881.287.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.90.012.15.812.90.012.45.812.40.013.15.811.70.012.55.410.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.013.30.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTax us-gaap:ConsolidatedEntities

srt:Subsidiaries


Comprehensive
Period End2021-06-302020-06-30
Value128153
Percentage of ComprehensiveIncomeNetOfTax0.080.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.35.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity, us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServicesSold

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Fuel


Cost
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value9332242378443126106623938
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.60.00.70.92.50.00.91.03.20.01.21.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Fuel0.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:ElectricityPurchased


Cost
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value396367447345273299423313322316472343303305400363
Percentage of CostOfGoodsAndServicesSold425.81146.91862.51500.0350.0679.51364.51203.8303.8509.71210.3902.60.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.00.013.413.18.60.012.712.09.70.014.313.39.10.012.513.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:ElectricityPurchased0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OilAndGasOperationAndMaintenance


Cost
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value608555597549569613712651659629666629630642655602
Percentage of CostOfGoodsAndServicesSold653.81734.42487.52387.0729.51393.22296.82503.8621.71014.51707.71655.30.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.90.017.920.918.00.021.325.019.80.020.224.418.90.020.422.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OilAndGasOperationAndMaintenance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OilAndGasPurchased


Cost
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value23312838641951615276317186661182731385884
Percentage of CostOfGoodsAndServicesSold250.5400.0158.3278.3250.0365.9167.7292.3299.1300.0169.2310.50.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.50.01.12.46.20.01.62.99.50.02.04.68.20.01.83.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OilAndGasPurchased0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ConsolidatedEntities, us-gaap:ProductOrService

srt:Subsidiaries, srt:Fuel


Cost
Period End2021-06-302020-06-30
Value2923
Percentage of CostOfGoodsAndServicesSold0.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.00.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries srt:Fuel0.00.0

srt:Subsidiaries, us-gaap:ElectricityPurchased


Cost
Period End2021-06-302020-06-30
Value417345
Percentage of CostOfGoodsAndServicesSold0.01500.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.113.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries us-gaap:ElectricityPurchased0.00.0

srt:Subsidiaries, us-gaap:OilAndGasOperationAndMaintenance


Cost
Period End2021-06-302020-06-30
Value590549
Percentage of CostOfGoodsAndServicesSold0.02387.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.020.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries us-gaap:OilAndGasOperationAndMaintenance0.00.0

srt:Subsidiaries, us-gaap:OilAndGasPurchased


Cost
Period End2021-06-302020-06-30
Value6364
Percentage of CostOfGoodsAndServicesSold0.0278.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.12.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries us-gaap:OilAndGasPurchased0.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService

srt:Fuel


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value299332242378443126106623938
Percentage of CostOfGoodsAndServicesSold0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.02.60.00.70.92.50.00.91.03.20.01.21.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Fuel0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ElectricityPurchased


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value463437408503380308343483352368357545388353348460408
Percentage of CostOfGoodsAndServicesSold0.0469.91275.02095.81652.2394.9779.51558.11353.8347.2575.81397.41021.10.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.712.10.015.114.59.80.014.513.511.10.016.515.010.60.014.315.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ElectricityPurchased0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OilAndGasOperationAndMaintenance


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value804790698736680700753847781794763797756836856811732
Percentage of CostOfGoodsAndServicesSold0.0849.52181.23066.72956.5897.41711.42732.33003.8749.11230.62043.61989.50.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.321.90.022.025.922.20.025.430.023.90.024.229.325.10.025.327.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGasOperationAndMaintenance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OilAndGasPurchased


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value83296163557723220998131442305164194378224115149
Percentage of CostOfGoodsAndServicesSold0.0318.3509.4229.2334.8297.4475.0316.1503.8417.0491.9420.5510.50.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.88.20.01.62.97.30.02.95.013.30.05.07.511.30.03.65.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGasPurchased0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value107498-44.062121144736661919855340261022654537872727761530281135647423367732056991695314559337714237249306701320414316611251483350558292351
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.613.80.018.68.014.20.018.57.616.60.018.58.816.40.022.610.519.10.023.712.715.00.019.711.515.70.020.510.814.80.020.58.47.80.020.411.513.50.016.88.414.40.015.19.710.1

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Income
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value579238502159501336533179536279556180508355643234557
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments116.3-540.980.875.4112.191.886.190.496.969.491.179.693.293.988.484.590.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.10.015.06.115.90.016.06.916.10.016.97.015.20.020.08.917.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.017.40.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ConsolidatedEntities

srt:Subsidiaries


Income
Period End2021-06-302020-06-30
Value112159
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments104.775.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.86.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-11.078-93.01199.05553116191087117538117-127.027010222796314124164572491011999.025910219810325065579926110613412322583169115205106122
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.42.20.03.60.31.70.03.50.73.20.05.31.53.50.08.43.97.00.09.24.45.20.07.23.65.50.07.63.55.20.07.22.31.80.07.63.84.40.06.22.85.00.05.53.53.5

us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Income
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value11416977.0956411927124521253111913424291218
Percentage of IncomeTaxExpenseBenefit146.2-17.281.577.8172.7120.8102.6142.1114.873.271.481.6101.7-105.589.689.296.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.20.02.90.33.00.03.61.03.70.03.81.23.60.07.53.56.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.04.10.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Income
Period End2021-06-302020-06-30
Value-16.07.0
Percentage of IncomeTaxExpenseBenefit145.577.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.50.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries0.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidatedEntities

srt:Subsidiaries


Income
Period End2021-06-302020-06-30
Value-16.07.0
Percentage of IncomeTaxExpenseBenefit145.577.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.50.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2.0-15.07.09.0202.02.0-13.0-18.03.01.01.011-13.05.01.04.0-39.0-36.0-2.01.0-143.0-29.02.0188-197.0-2.0117102416
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.1-0.40.00.30.80.10.0-0.4-0.70.10.00.00.4-0.40.00.00.2-1.20.0-0.10.0-4.50.00.16.7-5.40.03.53.511.0

us-gaap:IncomeTaxesPaidNet dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Income
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5.0241650126033-28.08.0-73.041209181210.0108-22.0
Percentage of IncomeTaxesPaidNet-33.3342.9177.8250.0600.03000.0-253.8155.6266.7-7300.04100.01900.0-138.5240.01000.02700.056.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.51.90.40.01.0-1.10.20.01.28.10.50.00.34.1-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.00.60.00.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value261176222226247322219262
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.84.90.06.89.410.20.07.9

us-gaap:InterestExpense dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Interest
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-30
Value184185182180183181
Percentage of InterestExpense104.583.380.555.983.669.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.10.05.55.70.05.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.0

us-gaap:InterestExpense us-gaap:ConsolidatedEntities

srt:Subsidiaries


Interest
Period End2021-06-302020-06-30
Value186190
Percentage of InterestExpense71.376.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.37.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.0

Interest Expense Debt

us-gaap:InterestExpenseDebt

us-gaap:InterestExpenseDebt


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value230227230227234224228220219221204195190190187183179178174174167163163157156156149145147146145145145143146146149145145145146147147152148150
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.86.30.06.88.97.10.06.68.46.60.05.97.45.70.05.76.85.50.05.16.05.20.04.65.64.30.04.35.03.90.04.25.14.50.04.25.44.70.04.04.94.40.04.14.94.3

us-gaap:InterestExpenseDebt dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Interest
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value184181179185172171168165169170167162163159155151150
Percentage of InterestExpenseDebt81.178.778.979.176.875.076.475.376.583.385.685.385.885.084.784.484.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.10.05.47.05.40.05.06.35.10.05.16.34.90.04.85.74.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.05.60.00.00.00.0

us-gaap:InterestExpenseDebt us-gaap:ConsolidatedEntities

srt:Subsidiaries


Interest
Period End2021-06-302020-06-30
Value186185
Percentage of InterestExpenseDebt80.979.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.37.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value341112337163277143300154292130286130265124246
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.63.10.04.910.54.50.04.611.23.90.03.910.33.70.0

us-gaap:InterestPaidNet dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Interest
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value8826389244972379923910123810023193214
Percentage of InterestPaidNet78.678.054.688.167.879.064.381.877.783.276.987.275.087.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.40.02.79.33.10.03.09.23.00.03.08.92.80.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.03.20.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1654194349319037529547315242433143518842850545717538820649723231017642821937082436212361234464172192207440214280193386168314235353186229
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.611.60.014.87.211.90.014.25.812.70.013.27.312.80.014.26.612.00.014.58.39.80.012.47.910.20.012.97.39.50.013.36.16.00.012.87.79.10.010.65.69.40.09.56.26.6

us-gaap:NetIncomeLoss dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value465222405152406272414152412227431149389221401143339
Percentage of NetIncomeLoss111.0516.382.280.0108.392.287.5100.097.268.699.179.390.943.887.781.787.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.90.012.15.812.90.012.45.812.40.013.15.811.70.012.55.410.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.013.30.00.00.00.0

us-gaap:NetIncomeLoss dei:LegalEntity, us-gaap:StatementEquityComponents

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:RetainedEarnings


Net
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value465405152406414152412227431149389
Percentage of NetIncomeLoss111.082.280.0108.387.5100.097.268.699.179.390.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.912.15.812.912.45.812.40.013.15.811.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidatedEntities

srt:Subsidiaries


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value128465152406
Percentage of NetIncomeLoss77.6111.080.0108.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.312.95.812.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:Subsidiaries, us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value128465152406
Percentage of NetIncomeLoss77.6111.080.0108.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.312.95.812.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries us-gaap:RetainedEarnings0.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-47.01.06.09.01217183027210.00.00.00.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.60.00.00.30.50.50.00.91.00.60.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-50.0-186.0-329.0-13.0-21.0-39.020143.014-33.0-11.0-3.0-15.0183934253.049111.01.09.010.04.0-3.0269.010.04.05.02.02.02.02.0-2.03.04.0-1.05.09.010.010.0128.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-5.20.0-0.4-0.8-1.20.00.40.10.40.0-0.3-0.1-0.50.01.21.30.80.01.40.40.00.00.30.40.10.00.80.30.30.00.10.10.10.00.1-0.10.10.0-0.00.20.30.00.30.40.2

us-gaap:NonoperatingIncomeExpense dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Nonoperating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-23.0-33.0-38.0-40.0-61.0-4.0-9.0-15.0-7.0-44.0-33.0-35.0-31.0109-36.0-35.0-31.0
Percentage of NonoperatingIncomeExpense12.410.0292.3190.5156.4-20.0-64.3-500.0-50.0133.3300.01166.7206.7605.6-92.3-102.9-124.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.60.0-1.1-1.5-1.90.0-0.3-0.6-0.20.0-1.0-1.4-0.90.0-1.1-1.3-1.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.0-1.10.00.00.00.0

us-gaap:NonoperatingIncomeExpense us-gaap:ConsolidatedEntities

srt:Subsidiaries


Nonoperating
Period End2021-06-302020-06-30
Value-23.0-40.0
Percentage of NonoperatingIncomeExpense46.0190.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.8-1.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2553281724532473224024262386249822862728242325022270260924172338221124572229258122792514230826132316289025782571250131042390262924322658244825872296251725082873259527232647300225882970
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax86.578.20.074.185.376.80.074.987.882.00.075.987.978.30.072.884.076.10.075.581.679.70.075.983.179.90.075.885.981.90.075.586.383.50.075.282.981.80.079.286.781.30.081.085.885.8

us-gaap:OperatingExpenses dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value24192119215019562112205021541955231320552135195621792114196318702115
Percentage of OperatingExpenses85.986.486.987.387.185.986.285.584.884.885.386.283.587.584.084.686.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax67.20.064.474.566.90.064.575.169.50.064.775.865.40.061.171.065.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.074.60.00.00.00.0

us-gaap:OperatingExpenses us-gaap:ConsolidatedEntities

srt:Subsidiaries


Operating
Period End2021-06-302020-06-30
Value21651956
Percentage of OperatingExpenses84.887.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax73.474.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value418860507860479808565867458786657826426755544873423771478940515642399830472726250819455685477855386526453851475561458756398626493705429492
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.223.90.025.818.225.60.026.017.623.60.025.016.522.70.027.216.123.90.027.518.420.30.024.116.920.10.024.215.618.10.024.513.716.50.024.817.118.20.020.813.318.70.019.014.214.2

us-gaap:OperatingIncomeLoss dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value786456722389742523723376726504764382705406836423741
Percentage of OperatingIncomeLoss91.489.984.081.291.892.683.482.192.476.792.589.793.474.695.8100.096.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.80.021.614.823.50.021.714.421.80.023.214.821.20.026.016.123.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.024.10.00.00.00.0

ed:OrangeAndRocklandUtilitiesInc


Operating
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value494910.0554613544223444519534813533642-2.045264320391939134723441738
Percentage of OperatingIncomeLoss5.75.72.16.85.32.86.95.15.45.85.24.56.95.12.58.39.05.1-0.46.210.45.34.45.74.04.63.48.95.15.23.66.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.50.41.71.40.51.61.30.91.31.40.71.61.40.51.70.01.2-0.11.20.01.30.71.00.01.10.51.50.01.30.61.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc0.00.00.00.00.00.00.00.00.016.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Operating
Period End2021-06-302020-06-30
Value321389
Percentage of OperatingIncomeLoss76.881.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.914.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries0.00.0

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries


Operating
Period End2021-06-302020-06-30
Value1110.0
Percentage of OperatingIncomeLoss2.62.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries0.00.0

us-gaap:OperatingIncomeLoss dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:PublicUtility

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:ElectricTransmission


Operating
Period End2021-06-302020-06-30
Value255318
Percentage of OperatingIncomeLoss61.066.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.612.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:ElectricTransmission0.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:GasTransmission


Operating
Period End2021-06-302020-06-30
Value99105
Percentage of OperatingIncomeLoss23.721.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.44.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:GasTransmission0.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:SteamPlant


Operating
Period End2021-06-302020-06-30
Value-33.0-34.0
Percentage of OperatingIncomeLoss-7.9-7.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.1-1.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:SteamPlant0.00.0

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries, us-gaap:ElectricTransmission


Operating
Period End2021-06-302020-06-30
Value1413
Percentage of OperatingIncomeLoss3.32.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries us-gaap:ElectricTransmission0.00.0

us-gaap:OperatingIncomeLoss dei:LegalEntity, us-gaap:PublicUtility

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:ElectricTransmission


Operating
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value247813318282803314257850318254883358320
Percentage of OperatingIncomeLoss28.794.566.434.992.668.632.7102.974.633.6101.184.641.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.924.412.18.924.112.17.725.812.37.627.513.69.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:ElectricTransmission0.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:GasTransmission


Operating
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value439-34.0105369-24.094344-34.082321-6.089298
Percentage of OperatingIncomeLoss51.0-4.021.945.7-2.820.543.8-4.119.242.5-0.721.038.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.2-1.04.011.7-0.73.610.3-1.03.29.6-0.23.49.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:GasTransmission0.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:SteamPlant


Operating
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value100-57.0-34.091-56.0-32.0125-52.0-18.0130-41.0-24.0123
Percentage of OperatingIncomeLoss11.6-6.6-7.111.3-6.5-7.015.9-6.3-4.217.2-4.7-5.716.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.8-1.7-1.32.9-1.7-1.23.8-1.6-0.73.9-1.3-0.93.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:SteamPlant0.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:ElectricTransmission


Operating
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value9.058131456161652188.0561414551418511618512512
Percentage of OperatingIncomeLoss1.06.72.71.76.53.52.06.34.21.16.43.31.85.92.72.86.13.42.56.25.51.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.21.70.50.41.70.60.51.60.70.21.70.50.41.60.50.61.50.60.51.50.90.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:ElectricTransmission0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:GasTransmission


Operating
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value40-9.0-3.041-10.0-3.038-10.05.036-11.05.039-7.0-1.035-9.0-18.027-8.0-5.027
Percentage of OperatingIncomeLoss4.7-1.0-0.65.1-1.2-0.74.8-1.21.24.8-1.31.25.1-0.7-0.25.5-1.1-3.83.7-1.0-1.13.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.1-0.3-0.11.3-0.3-0.11.1-0.30.21.1-0.30.21.2-0.2-0.01.1-0.3-0.60.7-0.2-0.20.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:GasTransmission0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidatedEntities

srt:Subsidiaries


Operating
Period End2021-06-302020-06-30
Value321389
Percentage of OperatingIncomeLoss76.881.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.914.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

ed:CorporateAndReconcilingItems


Operating
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-2.0-7.0-1.0-1.0-1.0-2.0-1.0-1.0-3.0-2.0-3.0-2.0-2.01.01.01.01.02.02.02.00.0
Percentage of OperatingIncomeLoss-0.5-1.4-0.1-0.2-0.1-0.4-0.1-0.2-0.4-0.3-0.4-0.5-0.30.20.10.20.10.40.20.40.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.10.0-0.0-0.0-0.00.0-0.0-0.0-0.10.0-0.1-0.1-0.10.00.00.00.00.00.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:CorporateAndReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:PublicUtility

us-gaap:ElectricTransmission


Operating
Period End2020-09-302019-09-30
Value860867
Percentage of OperatingIncomeLoss100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.826.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ElectricTransmission0.00.0

us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments

ed:CleanEnergyBusinesses


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value8928928214100721125249.0291815125109-51.0
Percentage of OperatingIncomeLoss21.33.310.717.11.711.515.71.43.05.61.23.34.31.913.321.2-7.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.00.82.83.10.43.02.80.30.80.90.30.90.70.53.73.9-1.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:CleanEnergyBusinesses0.00.00.00.00.00.00.00.00.00.06.00.00.00.00.00.00.0

ed:ConEdisonTransmission


Operating
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value-1.0-3.0-2.0-1.0-2.0-1.0-2.0-2.0-2.0-1.0-1.0-2.0-2.0-3.0-1.0-1.00.0
Percentage of OperatingIncomeLoss-0.2-0.3-0.2-0.2-0.2-0.1-0.4-0.3-0.2-0.2-0.1-0.2-0.5-0.4-0.1-0.20.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.1-0.1-0.0-0.1-0.0-0.1-0.1-0.1-0.0-0.0-0.1-0.1-0.1-0.0-0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConEdisonTransmission0.00.00.00.00.00.00.00.00.00.0-100.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value2.04.0-13.02.00.05.0-9.01.01.04.02.02.02.04.00.01.01.0-1.05.01.01.00.04.01.01.05.0-26.01.01.04.0212.02.03.0-3.02.0-1.07.0-25.02.02.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.00.10.00.20.00.00.00.10.00.10.10.10.00.00.0-0.00.00.00.00.00.00.00.00.10.00.00.00.10.00.10.10.10.00.1-0.00.20.00.10.1

us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-3.00.01.01.0-2.01.00.00.00.00.01.00.00.01.00.00.0
Percentage of OtherComprehensiveIncomeLossNetOfTax23.10.00.020.022.2100.00.00.00.00.050.00.00.0100.00.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity, us-gaap:StatementEquityComponents

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-3.00.01.01.0-2.01.00.00.00.00.01.00.00.01.00.00.0
Percentage of OtherComprehensiveIncomeLossNetOfTax23.10.00.020.022.2100.00.00.00.00.050.00.00.0100.00.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.04.0-13.02.00.05.0-9.01.01.04.02.02.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.00.10.00.20.00.00.00.10.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2.04.05.01.04.02.02.02.04.01.01.0-1.05.01.01.00.04.01.01.05.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.20.00.10.00.10.10.10.00.0-0.00.00.00.00.00.00.00.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2020-09-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.05.01.01.04.02.02.02.04.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.20.00.00.10.00.10.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

Other Income

us-gaap:OtherIncome

us-gaap:OtherIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value7.06.08.08.04.02.01910.04.011-1.07.06.06.04.020175.01.0318.04.0
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.20.00.20.20.10.00.30.20.30.00.20.20.20.00.60.60.20.00.90.30.1

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11842049502202392313503179445331435188428
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.011.70.015.07.712.40.015.16.913.40.013.27.312.8

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-47.01.09.01217302721
Percentage of ProfitLoss-39.80.21.85.94.36.015.14.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.60.00.30.50.50.91.00.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value165419493190375473152424331435188428
Percentage of ProfitLoss139.899.898.294.195.794.084.995.3100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.611.614.87.211.914.25.812.70.013.27.312.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2950360229033338262731572880333726043328281132982582333329613211263332282707341727943156270734432788361628283390291137892867348428183184290134382771307829663629299333493140370730173462
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments


Revenue
Period End2021-06-302020-06-30
Value24712261
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.886.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.886.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments100.0100.0

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries, us-gaap:OperatingSegments


Revenue
Period End2021-06-302020-06-30
Value205176
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.96.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.96.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries us-gaap:OperatingSegments100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:PublicUtility

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Revenue
Period End2021-06-302020-06-30
Value19531781
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax66.267.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax66.267.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments us-gaap:ElectricTransmission100.0100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:GasTransmission


Revenue
Period End2021-06-302020-06-30
Value447399
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.215.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.215.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments us-gaap:GasTransmission100.0100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:SteamPlant


Revenue
Period End2021-06-302020-06-30
Value7181
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.43.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.43.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments us-gaap:SteamPlant100.0100.0

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Revenue
Period End2021-06-302020-06-30
Value161139
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.55.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.55.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries us-gaap:OperatingSegments us-gaap:ElectricTransmission100.0100.0

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:GasTransmission


Revenue
Period End2021-06-302020-06-30
Value4437
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.51.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.51.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries us-gaap:OperatingSegments us-gaap:GasTransmission100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity, us-gaap:ConsolidationItems

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3173255528922261281025432899223729412508295922922921
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.188.086.686.189.088.386.985.988.489.289.788.887.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.188.086.686.189.088.386.985.988.489.289.788.887.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value252209237176221208230179257216246193262207234195238191240175215205229178233212232192256
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.07.27.16.77.07.26.96.97.77.77.57.57.97.07.37.47.47.17.06.36.87.66.76.46.47.56.86.66.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.07.27.16.77.07.26.96.97.77.77.57.57.97.07.37.47.47.17.06.36.87.66.76.46.47.56.86.66.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:PublicUtility

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1966191825941781173218652582175117141814263117711771
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax54.666.177.767.854.964.877.467.251.564.579.868.653.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax54.666.177.767.854.964.877.467.251.564.579.868.653.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:ElectricTransmission100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:GasTransmission


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value946518248399833524263400910536264428835480268388765
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.317.87.415.226.418.27.915.427.319.18.016.625.116.28.314.723.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.317.87.415.226.418.27.915.427.319.18.016.625.116.28.314.723.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:GasTransmission100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:SteamPlant


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2611195081245154548631715864933151476288298
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.24.11.53.17.85.31.63.39.55.61.93.69.55.01.93.39.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.24.11.53.17.85.31.63.39.55.61.93.69.55.01.93.39.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:SteamPlant100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value144141210139128139205140143139215146152147206148141140213144140140205162156155205157163
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.96.35.34.14.86.15.44.34.96.55.74.65.06.45.64.45.26.25.24.45.26.05.84.35.56.05.44.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.96.35.34.14.86.15.44.34.96.55.74.65.06.45.64.45.26.25.24.45.26.05.84.35.56.05.44.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments us-gaap:ElectricTransmission100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments, us-gaap:GasTransmission


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1086827379369253911477314711060284797512731756524167757273593
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.02.30.81.42.92.40.71.53.42.70.91.83.32.00.91.83.01.90.81.12.42.40.70.62.12.00.81.22.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.02.30.81.42.92.40.71.53.42.70.91.83.32.00.91.83.01.90.81.12.42.40.70.62.12.00.81.22.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments us-gaap:GasTransmission100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems, us-gaap:PublicUtility, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ed:Renewables, ed:CleanEnergyBusinesses


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value192154122194178114110193171106566873132
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.54.34.25.86.83.63.85.86.63.22.02.12.84.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.54.34.25.86.83.63.85.86.63.22.02.12.84.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:Renewables ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:EnergyService, ed:CleanEnergyBusinesses


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8122161411111814162330242317
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.70.60.60.40.40.30.60.40.60.71.10.70.90.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.70.60.60.40.40.30.60.40.60.71.10.70.90.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EnergyService ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ed:CleanEnergyBusinesses


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value273176138208189125128207187129869296149
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.34.94.86.27.24.04.46.27.23.93.12.83.74.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.34.94.86.27.24.04.46.27.23.93.12.83.74.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ed:ConEdisonTransmission


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.01.01.01.01.01.01.01.01.01.01.01.01.01.01.01.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:ConEdisonTransmission100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService, us-gaap:PublicUtility, us-gaap:StatementBusinessSegments

ed:EngineeringProcurementAndConstruction, ed:Renewables, ed:CleanEnergyBusinesses


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.02.02.03.05.03.04.02.03.03.09.089
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.20.10.20.10.10.10.32.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.20.10.20.10.10.10.32.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:EngineeringProcurementAndConstruction ed:Renewables ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2971367729603333271932342951336527443514294933282696336429613211263332282707341727943156270734432788361628283390291137892867348428183184290134382771307829663629299333493140370730173462
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.7102.1102.099.9103.5102.4102.5100.8105.4105.6104.9100.9104.4100.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value32052575287223452854257328772331303925592899233828842520279922932856
Percentage of Revenues87.287.086.286.288.287.285.584.986.586.887.186.785.785.187.287.188.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax89.088.786.089.390.489.386.289.591.391.087.990.586.585.187.287.188.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.098.70.00.00.00.0

us-gaap:Revenues dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments


Revenuesdei:
Period End2021-06-302020-06-30
Value24862345
Percentage of Revenues83.786.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax84.389.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments100.6103.7

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries, us-gaap:OperatingSegments


Revenuesdei:
Period End2021-06-302020-06-30
Value194175
Percentage of Revenues6.56.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.66.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries us-gaap:OperatingSegments94.699.4

us-gaap:Revenues dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:ProductOrService

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther


Revenuesdei:
Period End2021-06-302020-06-30
Value1584
Percentage of Revenues0.53.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.53.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments us-gaap:ProductAndServiceOther0.00.0

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther


Revenuesdei:
Period End2021-06-302020-06-30
Value-11.0-1.0
Percentage of Revenues-0.4-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries us-gaap:OperatingSegments us-gaap:ProductAndServiceOther0.00.0

us-gaap:Revenues dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:PublicUtility

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, us-gaap:ElectricTransmission


Revenuesdei:
Period End2021-06-302020-06-30
Value10.064
Percentage of Revenues0.32.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.32.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:ElectricTransmission0.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, us-gaap:GasTransmission


Revenuesdei:
Period End2021-06-302020-06-30
Value2.017
Percentage of Revenues0.10.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:GasTransmission0.00.0

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, us-gaap:ElectricTransmission


Revenuesdei:
Period End2021-06-302020-06-30
Value-8.0-1.0
Percentage of Revenues-0.3-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.3-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:ElectricTransmission0.00.0

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, us-gaap:GasTransmission


Revenuesdei:
Period End2021-06-30
Value-3.0
Percentage of Revenues-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:GasTransmission0.0

us-gaap:Revenues dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:ConsolidationItems, us-gaap:PublicUtility

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:IntersegmentElimination, us-gaap:ElectricTransmission


Revenuesdei:
Period End2021-06-302020-06-30
Value5.04.0
Percentage of Revenues0.20.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:IntersegmentElimination us-gaap:ElectricTransmission0.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:IntersegmentElimination, us-gaap:SteamPlant


Revenuesdei:
Period End2021-06-302020-06-30
Value1819
Percentage of Revenues0.60.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:IntersegmentElimination us-gaap:SteamPlant0.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Revenuesdei:
Period End2021-06-302020-06-30
Value19631845
Percentage of Revenues66.167.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax66.570.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments us-gaap:ElectricTransmission100.5103.6

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:GasTransmission


Revenuesdei:
Period End2021-06-302020-06-30
Value449416
Percentage of Revenues15.115.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.215.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments us-gaap:GasTransmission100.4104.3

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:SteamPlant


Revenuesdei:
Period End2021-06-302020-06-30
Value7484
Percentage of Revenues2.53.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.53.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries us-gaap:OperatingSegments us-gaap:SteamPlant104.2103.7

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Revenuesdei:
Period End2021-06-302020-06-30
Value153138
Percentage of Revenues5.15.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.25.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries us-gaap:OperatingSegments us-gaap:ElectricTransmission95.099.3

ed:OrangeAndRocklandUtilitiesInc, srt:Subsidiaries, us-gaap:OperatingSegments, us-gaap:GasTransmission


Revenuesdei:
Period End2021-06-302020-06-30
Value4137
Percentage of Revenues1.41.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc srt:Subsidiaries us-gaap:OperatingSegments us-gaap:GasTransmission93.2100.0

us-gaap:Revenues dei:LegalEntity, us-gaap:ConsolidationItems

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:IntersegmentElimination


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-25.0-25.0-24.0-25.0-25.0-23.0-24.0-23.0-24.0-24.0-25.0-24.0-24.0-25.0-25.0-24.0-24.0
Percentage of Revenues-0.7-0.8-0.7-0.9-0.8-0.8-0.7-0.8-0.7-0.8-0.8-0.9-0.7-0.8-0.8-0.9-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.7-0.9-0.7-1.0-0.8-0.8-0.7-0.9-0.7-0.9-0.8-0.9-0.7-0.8-0.8-0.9-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:IntersegmentElimination0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value32052575287223452854257328772331303925592899233828842520279922932856
Percentage of Revenues87.287.086.286.288.287.285.584.986.586.887.186.785.785.187.287.188.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax89.088.786.089.390.489.386.289.591.391.087.990.586.585.187.287.188.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments101.0100.899.3103.7101.6101.299.2104.2103.3102.098.0102.098.70.00.00.00.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value248215238175233215241179258200246198246207234195238191240175215205229178233212232192256
Percentage of Revenues6.77.37.16.47.27.37.26.57.36.87.47.37.37.07.37.47.47.17.06.36.87.66.76.46.47.56.86.66.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.97.47.16.77.47.57.26.97.87.17.57.77.47.07.37.47.47.17.06.36.87.66.76.46.47.56.86.66.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments98.4102.9100.499.4105.4103.4104.8100.0100.492.6100.0102.693.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:ProductOrService

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3220-20.0844430-22.0949851-60.046-37.0
Percentage of Revenues0.90.7-0.63.11.41.0-0.73.42.81.7-1.81.7-1.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.7-0.63.21.41.0-0.73.62.91.8-1.81.8-1.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-4.06.01.0-1.0127.0110.01.0-16.00.05.0-16.0
Percentage of Revenues-0.10.20.0-0.00.40.20.30.00.0-0.50.00.2-0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.10.20.0-0.00.40.20.30.00.0-0.60.00.2-0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:PublicUtility

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, us-gaap:ElectricTransmission


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.07.0-32.0643823-38.0828350-60.036-42.0
Percentage of Revenues0.10.2-1.02.41.20.8-1.13.02.41.7-1.81.3-1.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.2-1.02.41.20.8-1.13.12.51.8-1.81.4-1.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:ElectricTransmission0.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, us-gaap:GasTransmission


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value279.011171.03.0128.0112.00.07.06.0
Percentage of Revenues0.70.30.30.60.00.10.40.30.30.10.00.30.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.30.30.60.00.10.40.30.30.10.00.30.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:GasTransmission0.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, us-gaap:SteamPlant


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.04.01.03.05.04.04.04.04.0-1.00.03.0-1.0
Percentage of Revenues0.10.10.00.10.20.10.10.10.1-0.00.00.1-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.00.10.20.10.10.20.1-0.00.00.1-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:SteamPlant0.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, us-gaap:ElectricTransmission


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.05.0-2.0-1.08.02.05.0-2.02.0-2.0-3.0-2.0-3.0
Percentage of Revenues0.00.2-0.1-0.00.20.10.1-0.10.1-0.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.2-0.1-0.00.30.10.1-0.10.1-0.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:ElectricTransmission0.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, us-gaap:GasTransmission


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-5.01.03.00.04.05.06.02.0-1.0-14.03.07.0-13.0
Percentage of Revenues-0.10.00.10.00.10.20.20.1-0.0-0.50.10.3-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.10.00.10.00.10.20.20.1-0.0-0.50.10.3-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:GasTransmission0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:PublicUtility

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:IntersegmentElimination, us-gaap:ElectricTransmission


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.05.04.04.04.04.04.05.04.04.04.04.04.04.04.04.05.0
Percentage of Revenues0.10.20.10.10.10.10.10.20.10.10.10.10.10.10.10.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.20.10.20.10.10.10.20.10.10.10.20.10.10.10.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:IntersegmentElimination us-gaap:ElectricTransmission0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:IntersegmentElimination, us-gaap:GasTransmission


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.02.02.02.02.01.02.02.02.01.02.02.01.01.02.02.01.0
Percentage of Revenues0.10.10.10.10.10.00.10.10.10.00.10.10.00.00.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.10.00.10.10.10.00.10.10.00.00.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:IntersegmentElimination us-gaap:GasTransmission0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:IntersegmentElimination, us-gaap:SteamPlant


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1918181919181816181919181920191818
Percentage of Revenues0.50.60.50.70.60.60.50.60.50.60.60.70.60.70.60.70.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.60.50.70.60.60.50.60.50.70.60.70.60.70.60.70.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:IntersegmentElimination us-gaap:SteamPlant0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value19681925256218451770188825441833179718642571180717291893246918171793
Percentage of Revenues53.565.076.967.954.764.075.666.851.163.277.367.051.463.976.969.055.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax54.666.376.870.256.165.676.270.454.066.378.070.051.963.976.969.055.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:ElectricTransmission100.1100.498.8103.6102.2101.298.5104.7104.8102.897.7102.097.60.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:GasTransmission


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value973527259416834527275408921538264435841480268388765
Percentage of Revenues26.517.87.815.325.817.98.214.926.218.27.916.125.016.28.314.723.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.018.27.815.826.418.38.215.727.719.18.016.825.216.28.314.723.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:GasTransmission102.9101.7104.4104.3100.1100.6104.6102.0101.2100.4100.0101.6100.7100.0100.0100.0100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:SteamPlant


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2641235184250158589032115764963141476288298
Percentage of Revenues7.24.21.53.17.75.41.73.39.15.31.93.69.35.01.93.39.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.34.21.53.27.95.51.73.59.65.61.93.79.45.01.93.39.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:SteamPlant101.1103.4102.0103.7102.0102.6107.4104.7101.399.4100.0103.299.7100.0100.0100.0100.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value145146208138136141210138145137212144149147206148141140213144140140205162156155205157163
Percentage of Revenues3.94.96.25.14.24.86.25.04.14.66.45.34.45.06.45.64.45.26.25.24.45.26.05.84.35.56.05.44.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.05.06.25.34.34.96.35.34.44.96.45.64.55.06.45.64.45.26.25.24.45.26.05.84.35.56.05.44.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments us-gaap:ElectricTransmission100.7103.599.099.3106.2101.4102.498.6101.498.698.698.698.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments, us-gaap:GasTransmission


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value103693037977431411136334549760284797512731756524167757273593
Percentage of Revenues2.82.30.91.43.02.50.91.53.22.11.02.02.92.00.91.83.01.90.81.12.42.40.70.62.12.00.81.22.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.92.40.91.43.12.60.91.63.42.21.02.12.92.00.91.83.01.90.81.12.42.40.70.62.12.00.81.22.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments us-gaap:GasTransmission95.4101.5111.1100.0104.3107.2124.0105.199.181.8109.7114.988.2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues dei:LegalEntity, us-gaap:ProductOrService

ed:ConsolidatedEdisonCompanyofNewYorkInc., ed:Steam


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2641235184250158589032115764963141476288
Percentage of Revenues7.24.21.53.17.75.41.73.39.15.31.93.69.35.01.93.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.34.21.53.27.95.51.73.59.65.61.93.79.45.01.93.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. ed:Steam0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:Electricity


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1968192525621845177018882544183317971864257118071729189324691817
Percentage of Revenues53.565.076.967.954.764.075.666.851.163.277.367.051.463.976.969.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax54.666.376.870.256.165.676.270.454.066.378.070.051.963.976.969.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:Electricity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OilAndGasPurchased


Revenuesdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value973527259416834527275408921538264435841480268388
Percentage of Revenues26.517.87.815.325.817.98.214.926.218.27.916.125.016.28.314.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.018.27.815.826.418.38.215.727.719.18.016.825.216.28.314.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OilAndGasPurchased0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidatedEntities

srt:Subsidiaries


Revenuesus-gaap:
Period End2021-06-302020-06-30
Value24862345
Percentage of Revenues83.786.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax84.389.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.0

us-gaap:Revenues us-gaap:ConsolidatedEntities, us-gaap:ProductOrService

srt:Subsidiaries, ed:Steam


Revenuesus-gaap:
Period End2021-06-302020-06-30
Value7484
Percentage of Revenues2.53.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.53.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries ed:Steam0.00.0

srt:Subsidiaries, us-gaap:Electricity


Revenuesus-gaap:
Period End2021-06-302020-06-30
Value19631845
Percentage of Revenues66.167.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax66.570.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries us-gaap:Electricity0.00.0

srt:Subsidiaries, us-gaap:OilAndGasPurchased


Revenuesus-gaap:
Period End2021-06-302020-06-30
Value449416
Percentage of Revenues15.115.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.215.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries us-gaap:OilAndGasPurchased0.00.0

us-gaap:Revenues us-gaap:ConsolidationItems

ed:CorporateAndReconcilingItems


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1.0-1.0-1.0-1.00.00.01.0-1.00.0-1.0-1.01.01.00.0-1.00.0-1.0-2.0-1.0-1.00.0-1.0
Percentage of Revenues-0.0-0.0-0.0-0.00.00.00.0-0.00.0-0.0-0.00.00.00.0-0.00.0-0.0-0.1-0.0-0.00.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.00.00.00.0-0.00.0-0.0-0.00.00.00.0-0.00.0-0.0-0.1-0.0-0.00.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:CorporateAndReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value297136773333271932343365274435143328269633643211263332283417279431562707344327883616282833902911378928673484
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.7102.199.9103.5102.4100.8105.4105.6100.9104.4100.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:ProductOrService

ed:CorporateAndReconcilingItems, us-gaap:ProductAndServiceOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-1.0-1.0-1.0-1.0-1.00.01.0-1.00.0-1.0-1.01.01.0
Percentage of Revenues-0.0-0.0-0.0-0.0-0.00.00.0-0.00.0-0.0-0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.0-0.00.00.0-0.00.0-0.0-0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:CorporateAndReconcilingItems us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:PublicUtility, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, ed:OtherServices, ed:CleanEnergyBusinesses


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value184832149.02133404688104896284
Percentage of Revenues0.61.31.10.40.30.61.11.21.72.53.52.72.32.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.61.31.10.40.30.71.11.21.82.63.72.72.42.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther ed:OtherServices ed:CleanEnergyBusinesses0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, us-gaap:ProductAndServiceOther, ed:CleanEnergyBusinesses


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value184832149.02133404688104896284
Percentage of Revenues0.61.31.10.40.30.61.11.21.72.53.52.72.32.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.61.31.10.40.30.71.11.21.82.63.72.72.42.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther ed:CleanEnergyBusinesses0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:PublicUtility

us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Revenuesus-gaap:
Period End2020-09-302019-09-30
Value33333365
Percentage of Revenues100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax99.9100.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ElectricTransmission0.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:PublicUtility, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ed:OtherServices, ed:CleanEnergyBusinesses


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value184832149.02133404688104896284
Percentage of Revenues0.61.31.10.40.30.61.11.21.72.53.52.72.32.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.61.31.10.40.30.71.11.21.82.63.72.72.42.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:OtherServices ed:CleanEnergyBusinesses0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ed:Renewables, ed:CleanEnergyBusinesses


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value192154122194178114110193171106566873132
Percentage of Revenues6.54.24.15.86.53.53.75.76.23.01.92.02.73.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.54.34.25.86.83.63.85.86.63.22.02.12.84.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:Renewables ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:EnergyService, ed:CleanEnergyBusinesses


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8122161411111814162330242317
Percentage of Revenues2.70.60.50.40.40.30.60.40.60.71.00.70.90.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.70.60.60.40.40.30.60.40.60.71.10.70.90.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EnergyService ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ed:CleanEnergyBusinesses


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value29122417022219814616124723321719018115823323417714613693350338310
Percentage of Revenues9.86.15.76.77.34.55.57.38.56.26.45.45.96.97.95.55.54.23.410.212.19.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.96.25.96.77.54.65.67.48.96.56.85.56.17.07.95.55.54.23.410.212.19.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:CleanEnergyBusinesses106.6127.3123.2106.7104.8116.8125.8119.3124.6168.2220.9196.7164.6156.40.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ed:ConEdisonTransmission


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.01.01.01.01.01.01.01.01.01.01.01.01.01.01.01.00.00.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:ConEdisonTransmission100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:Revenues us-gaap:ProductOrService

ed:NonUtilityProductsAndServices


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value292224171223199147163248234218190183160234235178145
Percentage of Revenues9.86.15.86.77.34.55.57.48.56.26.45.55.97.07.95.55.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.96.25.96.77.64.75.77.49.06.66.85.56.27.07.95.55.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:NonUtilityProductsAndServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:Steam


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value742641235184250158589032115764963141476288
Percentage of Revenues2.57.24.21.53.17.75.41.73.39.15.31.93.69.35.01.93.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.57.34.21.53.27.95.51.73.59.65.61.93.79.45.01.93.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:Steam0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Electricity


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value21152113207027701983190620292753197119412001278319511877203926751965
Percentage of Revenues71.257.569.983.172.958.968.881.871.855.267.983.672.455.868.983.374.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax71.758.771.383.075.560.470.582.575.758.371.284.475.656.368.983.374.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OilAndGasPurchased


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value49010765962894539316013064491034601298489939540296435
Percentage of Revenues16.529.320.18.716.728.820.49.116.429.420.49.018.127.918.29.216.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.629.920.58.717.229.520.99.217.231.121.49.018.928.218.29.216.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGasPurchased0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProductAndServiceOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value217557-5.0927771281401861383011431
Percentage of Revenues0.72.01.9-0.23.42.42.40.85.15.34.70.94.20.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.72.12.0-0.13.52.42.50.85.45.64.90.94.40.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value62919622996289559595590815915958079559405560255066539204954449064489004811149246490994836548255473164727045580456424497144751439774430840667403114048140647419644192241736412093963340049397013921436535360193618636146
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Assetsdei:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value507175096747668473244756846557448084447544122431084185941525412664045140856
Percentage of Assets81.481.080.080.180.480.280.180.080.179.984.584.684.484.184.7
Percentage of Assets81.481.080.080.180.480.280.180.080.179.984.584.684.484.184.7
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity, us-gaap:ConsolidationItems

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments


Assetsdei:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value509674655743108404514085640230
Percentage of Assets81.080.279.984.184.788.1
Percentage of Assets81.080.279.984.184.788.1
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments


Assetsdei:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value3247300628922773275827192810
Percentage of Assets5.25.25.45.85.76.06.3
Percentage of Assets5.25.25.45.85.76.06.3
Percentage of Assets ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity, us-gaap:ConsolidationItems, us-gaap:PublicUtility

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Assetsdei:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value356733298831012296613070830603
Percentage of Assets56.756.857.561.763.667.1
Percentage of Assets56.756.857.561.763.667.1
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:ElectricTransmission100.0100.0100.0100.0100.0100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:GasTransmission


Assetsdei:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value12678110909710838775536974
Percentage of Assets20.219.118.017.415.715.3
Percentage of Assets20.219.118.017.415.715.3
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:GasTransmission100.0100.0100.0100.0100.0100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OperatingSegments, us-gaap:SteamPlant


Assetsdei:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value261624792386240325952653
Percentage of Assets4.24.34.45.05.45.8
Percentage of Assets4.24.34.45.05.45.8
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:OperatingSegments us-gaap:SteamPlant100.0100.0100.0100.0100.0100.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments, us-gaap:ElectricTransmission


Assetsdei:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2097213020361949194921402023
Percentage of Assets3.33.73.84.14.04.74.6
Percentage of Assets3.33.73.84.14.04.74.6
Percentage of Assets ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments us-gaap:ElectricTransmission100.0100.0100.0100.0100.0100.0100.0

ed:OrangeAndRocklandUtilitiesInc, us-gaap:OperatingSegments, us-gaap:GasTransmission


Assetsdei:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1150876856824809579786
Percentage of Assets1.81.51.61.71.71.31.8
Percentage of Assets1.81.51.61.71.71.31.8
Percentage of Assets ed:OrangeAndRocklandUtilitiesInc us-gaap:OperatingSegments us-gaap:GasTransmission100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

srt:ParentCompany


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value21499206381954217231
Percentage of Assets34.235.536.235.8
Percentage of Assets34.235.536.235.8
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

srt:Subsidiaries


Assetsus-gaap:
Period End2021-06-302020-12-31
Value5151550967
Percentage of Assets81.981.0
Percentage of Assets81.981.0
Percentage of Assets srt:Subsidiaries100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

ed:CorporateAndReconcilingItems


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value4853706749309401010804
Percentage of Assets0.80.61.21.91.92.21.8
Percentage of Assets0.80.61.21.91.92.21.8
Percentage of Assets ed:CorporateAndReconcilingItems100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ed:CleanEnergyBusinesses


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value6848652858212735255116801013
Percentage of Assets10.911.210.85.75.33.72.3
Percentage of Assets10.911.210.85.75.33.72.3
Percentage of Assets us-gaap:OperatingSegments ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ed:ConEdisonTransmission


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value134816181425122211503.01.0
Percentage of Assets2.12.82.62.52.40.00.0
Percentage of Assets2.12.82.62.52.40.00.0
Percentage of Assets us-gaap:OperatingSegments ed:ConEdisonTransmission100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities us-gaap:ConsolidatedEntities

us-gaap:Liabilities

srt:ParentCompany


Liabilitiesus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value171311471621617
Percentage of Liabilities100.0100.0100.0100.0
Percentage of Assets2.72.03.01.3
Percentage of Assets srt:ParentCompany8.05.68.33.6

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value62919622996289559595590815915958079559405560255066539204954449064489004811149246490994836548255473164727045580456424497144751439774430840667403114048140647419644192241736412093963340049397013921436535360193618636146
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Liabilities
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value507175096747668473244756846557448084447544122431084185941525412664045140856
Percentage of LiabilitiesAndStockholdersEquity81.481.080.080.180.480.280.180.080.179.984.584.684.484.184.7
Percentage of Assets81.481.080.080.180.480.280.180.080.179.984.584.684.484.184.7
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value21499206381954217231
Percentage of LiabilitiesAndStockholdersEquity34.235.536.235.8
Percentage of Assets34.235.536.235.8
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

srt:Subsidiaries


Liabilities
Period End2021-06-302020-12-31
Value5151550967
Percentage of LiabilitiesAndStockholdersEquity81.981.0
Percentage of Assets81.981.0
Percentage of Assets srt:Subsidiaries100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value197431903318847184941822518261180221795917709173691672615887156481565415418151021449014498142981426713950131931305213040127881276112576127071245512426122451188311889118691184211579115451164911667114641144411274
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.430.630.031.030.830.931.032.131.831.531.032.131.932.032.030.729.530.029.630.229.528.928.629.028.629.028.431.230.930.730.128.328.528.829.928.929.129.731.931.831.631.2

us-gaap:StockholdersEquity dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value1519214849145751426514333141471407913868133191291012869126251266212439118291141511188
Percentage of StockholdersEquity79.878.878.878.378.578.578.478.376.777.281.080.780.980.782.787.589.0
Percentage of Assets24.423.624.524.124.224.425.224.924.223.926.025.725.925.924.525.025.3
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.30.029.130.630.130.130.431.431.230.229.930.730.430.730.829.00.00.0

us-gaap:StockholdersEquity dei:LegalEntity, us-gaap:StatementEquityComponents

ed:ConsolidatedEdisonCompanyofNewYorkInc., ed:OtherChangesStockholdersEquity


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-61.0-61.0-61.0
Percentage of StockholdersEquity-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.5-0.5
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. ed:OtherChangesStockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value-7.0-7.0-4.0-4.0-5.0-6.0-4.0-5.0-5.0-5.0-5.0-5.0-6.0-6.0-7.0-9.0-11.0
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value62946169586957195694566956445619499447694744471946944649434742474234
Percentage of StockholdersEquity33.132.731.731.431.231.531.431.728.828.529.930.230.030.230.432.533.7
Percentage of Assets10.19.89.89.79.69.810.110.19.18.89.69.69.69.79.09.39.6
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:RetainedEarnings


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value93409122914589859079891988748689876585818565834684098231792376117399
Percentage of StockholdersEquity49.148.449.449.349.749.549.449.150.551.353.953.353.753.455.458.358.8
Percentage of Assets15.014.515.315.215.315.415.915.615.915.917.317.017.217.116.416.716.7
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value18847180221672615419
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets30.031.031.032.0
Percentage of Assets srt:ParentCompany87.787.385.689.5

srt:Subsidiaries


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value159241519214849142651433314147
Percentage of StockholdersEquity80.779.878.878.378.578.5
Percentage of Assets25.324.423.624.124.224.4
Percentage of Assets srt:Subsidiaries30.90.029.10.00.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:Subsidiaries, us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value-7.0-7.0-7.0-4.0-5.0-6.0
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets srt:Subsidiaries us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.0

srt:Subsidiaries, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value714562946169571956945669
Percentage of StockholdersEquity36.233.132.731.431.231.5
Percentage of Assets11.410.19.89.79.69.8
Percentage of Assets srt:Subsidiaries us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.0

srt:Subsidiaries, us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value922193409122898590798919
Percentage of StockholdersEquity46.749.148.449.349.749.5
Percentage of Assets14.715.014.515.215.315.4
Percentage of Assets srt:Subsidiaries us-gaap:RetainedEarnings0.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value5110458753014204456450264272358137073781386433563436377335373096328030173406315434993185383635053679339838543519345734843891370441033934345132404102390436383458320935903507
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.17.48.47.17.78.57.46.46.76.97.26.87.07.77.46.36.76.27.16.77.47.08.47.88.27.78.78.78.68.69.68.89.89.48.48.210.29.89.39.58.99.99.7

us-gaap:AssetsCurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Assets
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value393644073447374743063543300531433320335729703089323729092880
Percentage of AssetsCurrent85.883.182.082.185.782.983.984.887.886.988.589.985.882.284.6
Percentage of Assets6.37.05.86.37.36.15.45.76.06.26.06.36.66.06.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.7.88.67.27.99.17.66.77.17.57.87.17.47.87.27.0

us-gaap:AssetsCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Assets
Period End2020-12-312019-12-312018-12-312017-12-31
Value14939341458795
Percentage of AssetsCurrent28.221.937.722.5
Percentage of Assets2.41.62.71.7
Percentage of Assets srt:ParentCompany6.94.57.54.6

srt:Subsidiaries


Assets
Period End2021-06-302020-12-31
Value42934407
Percentage of AssetsCurrent84.083.1
Percentage of Assets6.87.0
Percentage of Assets srt:Subsidiaries8.38.6

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value1067761272153114413959817883140689519986665179769816677761508626194491709117699205774102674747471323946913817696483984925163381981788726074
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.70.12.00.31.92.41.70.11.50.71.70.41.81.31.70.11.70.11.60.31.80.12.10.21.60.31.60.51.90.31.70.21.80.31.00.23.41.91.71.11.41.40.90.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Cash
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value301067231096130393315786352818178295747301776717702843645
Percentage of CashAndCashEquivalentsAtCarryingValue39.583.915.095.893.495.119.294.686.791.48.595.788.291.624.694.025.490.589.392.3
Percentage of Assets0.01.70.01.92.21.60.01.40.61.50.01.71.21.50.01.60.01.51.81.5
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.12.10.02.32.72.00.01.80.81.90.02.01.41.80.00.00.01.70.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1442.09.09.01351
Percentage of CashAndCashEquivalentsAtCarryingValue11.30.21.01.11.75.4
Percentage of Assets0.20.00.00.00.00.1
Percentage of Assets srt:ParentCompany0.70.00.00.10.00.0

srt:Subsidiaries


Cash
Period End2021-06-302020-12-312020-06-30
Value98510671096
Percentage of CashAndCashEquivalentsAtCarryingValue92.383.995.8
Percentage of Assets1.61.71.9
Percentage of Assets srt:Subsidiaries1.92.10.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value117815714363141345157412172539704741006245921683844110842102830
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.90.32.30.52.32.72.10.51.70.91.90.51.91.41.80.21.70.21.7

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Cash
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value301067231096130393315786352818178295747301776919704859
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents19.174.37.381.582.876.75.981.074.381.36.990.084.086.515.591.318.684.80.0
Percentage of Assets0.01.70.01.92.21.60.01.40.61.50.01.71.21.50.01.60.01.51.9
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.12.10.02.32.72.00.01.80.81.90.02.01.41.80.00.00.01.70.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents us-gaap:ConsolidatedEntities

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1442.09.09.013
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents10.00.20.91.11.6
Percentage of Assets0.20.00.00.00.0
Percentage of Assets srt:ParentCompany0.70.00.00.10.0

srt:Subsidiaries


Cash
Period End2021-06-302020-12-312020-06-302019-12-31
Value98510671096933
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents83.674.381.576.7
Percentage of Assets1.61.71.91.6
Percentage of Assets srt:Subsidiaries1.92.10.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value17091949170115101332131812361254109913091267135010971250110311119841175110611579511085105211941084144412011280122115661251127312111357122213191034106911231177110111781173
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.73.12.72.52.32.22.12.22.02.42.32.72.22.62.32.32.02.42.32.42.02.42.32.72.43.32.73.13.03.93.13.02.93.33.03.32.62.72.93.23.13.33.2

us-gaap:AccountsReceivableNetCurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Accounts
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value18311595139712431226115311601016119811631228994113510091032
Percentage of AccountsReceivableNetCurrent93.993.892.593.393.093.392.592.491.591.891.090.690.891.593.3
Percentage of Assets2.92.52.32.12.12.02.11.82.22.22.52.02.32.12.1
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.3.63.12.92.62.62.52.62.32.72.72.92.42.82.52.5

us-gaap:AccountsReceivableNetCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Accounts
Period End2020-12-31
Value1.0
Percentage of AccountsReceivableNetCurrent0.1
Percentage of Assets0.0
Percentage of Assets srt:ParentCompany0.0

srt:Subsidiaries


Accounts
Period End2021-06-302020-12-31
Value16101595
Percentage of AccountsReceivableNetCurrent94.293.8
Percentage of Assets2.62.5
Percentage of Assets srt:Subsidiaries3.13.1

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value3262102312082301662001511201771229112386189199174122205206269157191178223263278338224265235179164161232207215205159153176202171
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.30.40.30.40.30.30.30.20.30.20.20.30.20.40.40.40.30.40.40.60.30.40.40.50.60.60.80.60.70.60.40.40.40.60.50.50.50.40.40.50.60.5

us-gaap:OtherAssetsCurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1061231211091001278167129695985578495
Percentage of OtherAssetsCurrent50.553.258.247.460.263.553.655.872.956.664.869.166.344.446.3
Percentage of Assets0.20.20.20.20.20.20.10.10.20.10.10.20.10.20.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.20.20.30.20.20.30.20.20.30.20.10.20.10.20.2

us-gaap:OtherAssetsCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value12121218
Percentage of OtherAssetsCurrent5.26.09.89.5
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany0.10.10.10.1

srt:Subsidiaries


Other
Period End2021-06-302020-12-31
Value207123
Percentage of OtherAssetsCurrent63.553.2
Percentage of Assets0.30.2
Percentage of Assets srt:Subsidiaries0.40.2

Construction In Progress Gross

us-gaap:ConstructionInProgressGross

us-gaap:ConstructionInProgressGross


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value482746638527407446309203168124169566592550551615779687689421712607244425403187113821086836291021608340048393961543723
Percentage of ConstructionInProgressGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.81.21.00.90.70.80.50.40.30.20.31.11.21.11.11.21.61.41.40.91.51.30.50.90.90.40.30.20.30.20.10.10.20.40.21.00.10.10.10.20.10.10.1

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value555555522489456423391357329296275248233217201185170155140122114105959085959187849790847873686664615957555351
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.90.80.80.80.70.70.60.60.50.50.50.50.40.40.40.30.30.30.30.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.10.1

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value47339470694655545564448974443543889432344274542152417493938338767380753760036728362513566335216339063345932971322093147330923302122982729239287542868228436279552754227283269392632425734253532509324698244142406823863
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets75.275.674.076.576.075.175.677.376.976.577.479.579.077.978.274.673.873.773.071.770.872.370.670.069.168.767.371.971.370.970.066.665.765.465.466.464.363.964.067.667.866.566.0

us-gaap:PropertyPlantAndEquipmentNet dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Property
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value399663955438716382053783637414368853634835817353743482934265336383320931119
Percentage of PropertyPlantAndEquipmentNet84.985.085.085.185.185.285.385.085.084.788.488.488.388.388.4
Percentage of Assets64.262.965.064.764.064.465.965.465.065.670.369.868.869.064.5
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.78.877.681.280.779.580.482.381.781.282.183.282.581.582.176.2

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidatedEntities

srt:Subsidiaries


Property
Period End2021-06-302020-12-31
Value4043439554
Percentage of PropertyPlantAndEquipmentNet85.485.0
Percentage of Assets64.362.9
Percentage of Assets srt:Subsidiaries78.577.6

Long Term Investments

us-gaap:LongTermInvestments

us-gaap:LongTermInvestments


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value168816541816212420802011206519831899183217662131205720122001197719611914192119311913865884874848814816740693547461444313351467462451440455474426413403
Percentage of LongTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.72.93.63.53.43.63.53.43.33.34.34.24.14.24.04.04.04.04.14.01.91.91.91.91.91.81.81.71.41.11.10.70.81.11.21.11.11.21.31.21.11.1

us-gaap:LongTermInvestments dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Long
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value550541505475417461436422407385415406388383315
Percentage of LongTermInvestments33.329.823.822.820.722.322.022.222.221.819.519.719.319.116.4
Percentage of Assets0.90.90.80.80.70.80.80.80.70.70.80.80.80.80.7
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.1.11.11.11.00.91.01.00.90.90.91.01.00.90.90.8

us-gaap:LongTermInvestments us-gaap:ConsolidatedEntities

srt:ParentCompany


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value18670180091670715110
Percentage of LongTermInvestments1028.1872.1946.0755.1
Percentage of Assets29.731.031.031.4
Percentage of Assets srt:ParentCompany86.887.385.587.7

srt:Subsidiaries


Long
Period End2021-06-302020-12-31
Value594541
Percentage of LongTermInvestments35.229.8
Percentage of Assets0.90.9
Percentage of Assets srt:Subsidiaries1.21.1

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value446446446446446446446446440440440439428428428428428428428429429429429429429429429429429429429429429429429429429429429429429429429
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.70.70.80.80.80.80.80.80.80.90.90.90.90.90.90.90.90.90.90.90.91.01.01.01.01.11.11.11.11.01.01.01.01.11.11.11.11.21.21.21.2

us-gaap:Goodwill us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

ed:BatteryStorageCompany, ed:CleanEnergyBusinesses


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-31
Value181812
Percentage of Goodwill4.04.02.7
Percentage of Assets0.00.00.0
Percentage of Assets ed:BatteryStorageCompany ed:CleanEnergyBusinesses0.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value134014341460148515101532155715801605163016541321271291311141161221240.02.02.02.03.03.03.03.03.03.04.04.04.04.02.02.03.03.03.03.03.03.03.03.0
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.32.32.52.62.62.72.82.93.03.10.30.30.30.30.20.20.30.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:BusinessAcquisition

us-gaap:FiniteLivedIntangibleAssetsNet

ed:PowerPurchase


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value145715541712131119
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0
Percentage of Assets2.32.73.20.30.2
Percentage of Assets ed:PowerPurchase0.00.00.00.00.0

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OtherIntangibleAssets


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value3.03.03.00.05.02.0
Percentage of FiniteLivedIntangibleAssetsNet0.20.20.20.04.20.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value8188378378448538488578348428520.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.31.31.31.41.41.41.51.51.51.50.0

us-gaap:OperatingLeaseRightOfUseAsset dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value5685785845935916016106176270.0
Percentage of OperatingLeaseRightOfUseAsset67.969.169.269.569.770.173.173.373.60.0
Percentage of Assets0.90.91.01.01.01.01.11.11.10.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.1.11.11.21.31.21.31.41.41.40.0

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:ConsolidatedEntities

srt:Subsidiaries


Operating
Period End2021-06-302020-12-31
Value559578
Percentage of OperatingLeaseRightOfUseAsset68.369.1
Percentage of Assets0.90.9
Percentage of Assets srt:Subsidiaries1.11.1

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value878289899223770375407687785371427251730165414674480450404973744576077771771283258399855987139119930195539811185193253225238227253216278252296259267277309298
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.014.414.712.912.813.013.512.813.013.312.19.49.810.310.315.115.516.116.017.617.818.819.120.320.821.722.10.50.50.60.60.60.50.60.50.70.60.70.70.70.80.90.8

us-gaap:OtherAssetsNoncurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value626564655000489750095139448245624578399236453765400339506542
Percentage of OtherAssetsNoncurrent69.770.164.964.965.265.462.862.962.761.078.078.479.479.484.8
Percentage of Assets10.110.38.48.38.58.88.08.28.37.47.47.78.28.213.6
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.12.412.710.510.310.511.010.010.310.49.38.79.19.79.816.0

us-gaap:OtherAssetsNoncurrent us-gaap:ConsolidatedEntities

srt:Subsidiaries


Other
Period End2021-06-302020-12-31
Value61946465
Percentage of OtherAssetsNoncurrent70.570.1
Percentage of Assets9.810.3
Percentage of Assets srt:Subsidiaries12.012.7

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value121712081475127910181015116410829941010118711731130123612861057973963114711139699091008109284593710199729671079101792599710651215968813844961106210339671151
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.91.92.32.11.71.72.01.91.81.82.22.42.32.52.72.12.02.02.42.42.02.02.22.41.92.12.32.42.42.72.52.22.42.62.92.42.02.12.52.92.92.73.2

us-gaap:AccountsPayableCurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Accounts
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value10311232104080584895688383587097795392210151057876
Percentage of AccountsPayableCurrent85.383.581.379.183.582.181.684.086.182.381.281.682.182.276.4
Percentage of Assets1.72.01.71.41.41.61.61.51.61.81.91.92.12.21.8
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.2.02.42.21.71.82.12.01.92.02.32.32.22.52.62.1

us-gaap:AccountsPayableCurrent us-gaap:ConsolidatedEntities

srt:Subsidiaries


Accounts
Period End2021-06-302020-12-31
Value9821232
Percentage of AccountsPayableCurrent80.783.5
Percentage of Assets1.62.0
Percentage of Assets srt:Subsidiaries1.92.4

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value5557655973547160670563116287621959696348620754015456565149023915432934413843359139034436472044293935340737813873383935764730437345044243394537244380384029872959247326762366
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.810.511.712.011.310.710.811.110.711.511.510.911.111.610.27.98.87.18.07.68.39.710.39.88.87.78.59.59.58.811.610.410.710.29.69.410.99.77.68.16.97.46.5

us-gaap:LiabilitiesCurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Liabilities
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value478852474407412735034131381336084054420045834636471139382989
Percentage of LiabilitiesCurrent73.071.361.661.655.565.761.360.463.967.784.985.083.480.377.8
Percentage of Assets7.78.37.47.05.97.16.86.57.47.89.39.49.68.26.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.9.410.39.28.77.48.98.58.19.29.710.911.211.49.77.3

us-gaap:LiabilitiesCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value171311471621617
Percentage of LiabilitiesCurrent23.318.226.112.6
Percentage of Assets2.72.03.01.3
Percentage of Assets srt:ParentCompany8.05.68.33.6

srt:Subsidiaries


Liabilities
Period End2021-06-302020-12-31
Value36445247
Percentage of LiabilitiesCurrent65.671.3
Percentage of Assets5.88.3
Percentage of Assets srt:Subsidiaries7.110.3

Long Term Debt Current

us-gaap:LongTermDebtCurrent us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtCurrent

srt:ParentCompany


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value11783.03.02.0
Percentage of LongTermDebtCurrent100.0100.0100.0100.0
Percentage of Assets1.90.00.00.0
Percentage of Assets srt:ParentCompany5.50.00.00.0

Notes Payable Current

us-gaap:NotesPayableCurrent

us-gaap:NotesPayableCurrent


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-30
Value1052158117051009181312081692130011611435174113528691389577356103683610546017081199152911601245519800145114001021539340800
Percentage of NotesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.72.52.71.73.12.02.92.32.12.63.22.71.82.81.20.72.11.72.21.31.52.63.32.62.81.21.83.63.32.41.30.92.0

us-gaap:NotesPayableCurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Notes
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1427166099111155971137930849108511921004550913150600
Percentage of NotesPayableCurrent90.397.498.261.549.467.271.573.175.668.574.363.365.726.056.9
Percentage of Assets2.32.61.71.91.02.01.71.52.02.22.01.11.90.31.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.2.83.32.12.41.32.42.11.92.52.82.41.32.20.41.5

us-gaap:NotesPayableCurrent us-gaap:ConsolidatedEntities

srt:Subsidiaries


Notes
Period End2021-06-302020-12-31
Value10001660
Percentage of NotesPayableCurrent95.197.4
Percentage of Assets1.62.6
Percentage of Assets srt:Subsidiaries1.93.3

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value10910696908377655955500.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.20.20.20.20.10.10.10.10.10.10.0

us-gaap:OperatingLeaseLiabilityCurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value7873696459544946410.0
Percentage of OperatingLeaseLiabilityCurrent73.676.076.777.176.683.183.183.682.00.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.20.10.10.10.10.10.10.10.10.0

us-gaap:OperatingLeaseLiabilityCurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Operating
Period End2021-06-30
Value82
Percentage of OperatingLeaseLiabilityCurrent75.2
Percentage of Assets0.1
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries0.0

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:ConsolidatedEntities

srt:Subsidiaries


Operating
Period End2021-06-302020-12-31
Value8273
Percentage of OperatingLeaseLiabilityCurrent75.276.0
Percentage of Assets0.10.1
Percentage of Assets srt:Subsidiaries0.20.1

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value369358426394338285371341327264363295272262386358367216297638594529525463489473508418371404478491490483542489461405468460622457449
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.70.70.60.50.60.60.60.50.70.60.60.50.80.70.70.40.61.31.31.21.21.01.11.11.11.00.91.01.21.21.21.21.31.21.21.01.21.31.71.31.2

us-gaap:OtherLiabilitiesCurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value272319274240224280269256201267234215183245242
Percentage of OtherLiabilitiesCurrent76.074.969.571.078.675.578.978.376.173.679.379.069.863.581.5
Percentage of Assets0.40.50.50.40.40.50.50.50.40.50.50.40.40.50.5
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.50.60.60.50.50.60.60.60.50.60.60.50.40.60.6

us-gaap:OtherLiabilitiesCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value1210.01310.0
Percentage of OtherLiabilitiesCurrent2.82.73.62.6
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany0.10.00.10.1

srt:Subsidiaries


Other
Period End2021-06-302020-12-31
Value297319
Percentage of OtherLiabilitiesCurrent80.574.9
Percentage of Assets0.50.5
Percentage of Assets srt:Subsidiaries0.60.6

Taxes Payable Current

us-gaap:TaxesPayableCurrent

us-gaap:TaxesPayableCurrent


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value12111515089533176354743614845471084342386441465162535280724869984763793221441621081542291881661567090
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.10.10.10.10.10.10.10.10.10.10.10.20.10.10.10.10.10.10.10.10.10.10.20.20.10.20.21.20.90.80.30.40.30.40.60.50.50.40.20.2

us-gaap:TaxesPayableCurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Taxes
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value97132814729713338385539363410250
Percentage of TaxesPayableCurrent84.388.091.088.793.593.494.380.988.490.281.280.072.394.478.1
Percentage of Assets0.20.20.10.10.00.10.10.10.10.10.10.10.10.20.1
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.20.30.20.10.10.20.10.10.10.10.10.10.10.30.1

us-gaap:TaxesPayableCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Taxes
Period End2020-12-312019-12-312018-12-312017-12-31
Value6.02.02.00.0
Percentage of TaxesPayableCurrent4.02.63.30.0
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany0.00.00.00.0

srt:Subsidiaries


Taxes
Period End2021-06-302020-12-31
Value101132
Percentage of TaxesPayableCurrent83.588.0
Percentage of Assets0.20.2
Percentage of Assets srt:Subsidiaries0.20.3

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-312010-12-31
Value223491997318145160291477414093144931296112745122821238512190121911119511129116231097410976109771095910768110711067310676
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets35.534.433.733.330.629.830.728.427.927.327.727.727.527.527.628.727.026.226.226.326.127.927.229.5

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value216662061420382192061914919423185271753717496169331749515480152251473014731146511470314829147351374713747122221200611521119251169411631109851108411338104891049310494105541006298399840100411014310369106691067010671
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets34.433.132.432.232.432.831.931.331.530.832.431.231.030.130.629.829.930.730.529.129.126.826.325.626.626.626.327.027.528.025.825.025.025.324.424.824.625.325.928.429.629.529.5

us-gaap:LongTermDebtNoncurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Long
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value161511614915557155541619414614140241402313678136761258712582120661206512073
Percentage of LongTermDebtNoncurrent78.379.281.081.283.478.980.080.180.878.281.382.681.981.981.9
Percentage of Assets25.925.726.126.327.425.225.125.224.825.425.425.624.725.125.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.31.831.732.632.934.031.431.331.531.031.730.130.329.229.829.6

us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value939146911951195
Percentage of LongTermDebtNoncurrent4.67.96.88.1
Percentage of Assets1.52.52.22.5
Percentage of Assets srt:ParentCompany4.47.16.16.9

srt:Subsidiaries


Long
Period End2021-06-302020-12-31
Value1763516149
Percentage of LongTermDebtNoncurrent81.479.2
Percentage of Assets28.025.7
Percentage of Assets srt:Subsidiaries34.231.7

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value192520742257760120513291516810112012311228804959119214431443165218361847219724232599291130683420362939141106129115021727381643334438467840394385460548352600266626593287
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.13.33.61.32.02.22.61.42.02.22.31.62.02.43.02.93.43.83.84.65.15.76.46.87.68.38.82.73.23.74.29.110.310.611.410.210.911.612.37.17.47.39.1

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Pension
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value178119435519561080124157785896995254766589911401544
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent85.986.172.579.381.381.971.276.678.777.568.069.375.479.083.6
Percentage of Assets2.93.10.91.61.82.11.01.51.81.81.11.41.82.43.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.3.53.81.22.02.32.71.31.92.22.21.31.62.22.83.8

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:ConsolidatedEntities

srt:Subsidiaries


Pension
Period End2021-06-302020-12-31
Value16341943
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent84.986.1
Percentage of Assets2.63.1
Percentage of Assets srt:Subsidiaries3.23.8

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value310249218217216206191175156132113117.07.07.08.08.08.08.08.08.08.09.09.09.09.09.09.0
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.40.30.40.40.30.30.30.30.20.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterest dei:LegalEntity, us-gaap:BusinessAcquisition

ed:TaxEquityInvestors, ed:CopperMountainMesquiteSolar


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value126130134137140137126115998371
Percentage of MinorityInterest40.652.261.563.164.866.566.065.763.562.962.8
Percentage of Assets0.20.20.20.20.20.20.20.20.20.20.1
Percentage of Assets ed:TaxEquityInvestors ed:CopperMountainMesquiteSolar0.00.00.00.00.00.00.00.00.00.00.0

ed:TaxEquityInvestors, ed:GreatValleySolar


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value9085827873666257483933
Percentage of MinorityInterest29.034.137.635.933.832.032.532.630.829.529.2
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets ed:TaxEquityInvestors ed:GreatValleySolar0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterest us-gaap:BusinessAcquisition

ed:CEDNevadaVirginia


Minority
Period End2021-06-302021-03-31
Value9233
Percentage of MinorityInterest29.713.3
Percentage of Assets0.10.1
Percentage of Assets ed:CEDNevadaVirginia0.00.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value7507637648078117998098198218250.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.21.21.21.41.41.41.41.51.51.50.0

us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value5105125545595485515955955980.0
Percentage of OperatingLeaseLiabilityNoncurrent66.867.068.668.968.668.172.672.572.50.0
Percentage of Assets0.80.80.90.90.90.91.11.11.10.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.1.01.01.21.21.21.21.31.31.40.0

us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Operating
Period End2021-06-30
Value507
Percentage of OperatingLeaseLiabilityNoncurrent67.6
Percentage of Assets0.8
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries0.0

us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:ConsolidatedEntities

srt:Subsidiaries


Operating
Period End2021-06-302020-12-31
Value507512
Percentage of OperatingLeaseLiabilityNoncurrent67.667.0
Percentage of Assets0.80.8
Percentage of Assets srt:Subsidiaries1.01.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value859869860897894876874878876875
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.41.41.41.51.51.51.51.61.61.6

us-gaap:OperatingLeaseLiability dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value588585623623607605644641639
Percentage of OperatingLeaseLiability67.768.069.569.769.369.273.373.273.0
Percentage of Assets0.90.91.01.11.01.01.21.21.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.1.21.11.31.31.31.31.41.41.4

us-gaap:OperatingLeaseLiability dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Operating
Period End2021-06-30
Value589
Percentage of OperatingLeaseLiability68.6
Percentage of Assets0.9
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries0.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1312133413181363136913501362132013271334
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.12.12.32.32.32.32.42.42.4

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Lessee
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value740743785790777782824826830
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue55.556.457.657.757.657.462.462.262.2
Percentage of Assets1.21.21.31.31.31.31.51.51.5
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.1.51.51.61.71.61.71.81.91.9

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Lessee
Period End2021-06-30
Value739
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue56.3
Percentage of Assets1.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries0.0

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value453465458466475474488442451459
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.70.80.80.80.80.80.80.8

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Lessee
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value152158162167170177180185191
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount32.734.534.835.235.936.340.741.041.6
Percentage of Assets0.20.30.30.30.30.30.30.30.3
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.30.30.30.40.40.40.40.40.4

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Lessee
Period End2021-06-30
Value150
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount33.1
Percentage of Assets0.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. srt:Subsidiaries0.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value197431903318847184941822518261180221795917709173691672615887156481565415418151021449014498142981426713950131931305213040127881276112576127071245512426122451188311889118691184211579115451164911667114641144411274
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.430.630.031.030.830.931.032.131.831.531.032.131.932.032.030.729.530.029.630.229.528.928.629.028.629.028.431.230.930.730.128.328.528.829.928.929.129.731.931.831.631.2

us-gaap:StockholdersEquity dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value1519214849145751426514333141471407913868133191291012869126251266212439118291141511188
Percentage of StockholdersEquity79.878.878.878.378.578.578.478.376.777.281.080.780.980.782.787.589.0
Percentage of Assets24.423.624.524.124.224.425.224.924.223.926.025.725.925.924.525.025.3
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.30.029.130.630.130.130.431.431.230.229.930.730.430.730.829.00.00.0

us-gaap:StockholdersEquity dei:LegalEntity, us-gaap:StatementEquityComponents

ed:ConsolidatedEdisonCompanyofNewYorkInc., ed:OtherChangesStockholdersEquity


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-62.0-61.0-61.0-61.0
Percentage of StockholdersEquity-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.5-0.5
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. ed:OtherChangesStockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value-7.0-7.0-4.0-4.0-5.0-6.0-4.0-5.0-5.0-5.0-5.0-5.0-6.0-6.0-7.0-9.0-11.0
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value62946169586957195694566956445619499447694744471946944649434742474234
Percentage of StockholdersEquity33.132.731.731.431.231.531.431.728.828.529.930.230.030.230.432.533.7
Percentage of Assets10.19.89.89.79.69.810.110.19.18.89.69.69.69.79.09.39.6
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:RetainedEarnings


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value93409122914589859079891988748689876585818565834684098231792376117399
Percentage of StockholdersEquity49.148.449.449.349.749.549.449.150.551.353.953.353.753.455.458.358.8
Percentage of Assets15.014.515.315.215.315.415.915.615.915.917.317.017.217.116.416.716.7
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value18847180221672615419
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets30.031.031.032.0
Percentage of Assets srt:ParentCompany87.787.385.689.5

srt:Subsidiaries


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value159241519214849142651433314147
Percentage of StockholdersEquity80.779.878.878.378.578.5
Percentage of Assets25.324.423.624.124.224.4
Percentage of Assets srt:Subsidiaries30.90.029.10.00.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:Subsidiaries, us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value-7.0-7.0-7.0-4.0-5.0-6.0
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets srt:Subsidiaries us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.0

srt:Subsidiaries, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value714562946169571956945669
Percentage of StockholdersEquity36.233.132.731.431.231.5
Percentage of Assets11.410.19.89.79.69.8
Percentage of Assets srt:Subsidiaries us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.0

srt:Subsidiaries, us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value922193409122898590798919
Percentage of StockholdersEquity46.749.148.449.349.749.5
Percentage of Assets14.715.014.515.215.315.4
Percentage of Assets srt:Subsidiaries us-gaap:RetainedEarnings0.00.00.00.00.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value200531928219065187111844118467182131813417865175011683915898156551566115425151101449814506143061427513958132011306113049127971277012585127161245512426122451216611883118891186911436
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.931.030.331.431.231.231.432.432.131.831.232.131.932.032.130.729.530.029.630.229.529.028.629.028.629.028.431.330.930.730.129.028.328.528.829.2

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

ed:OtherChangesStockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value-123.0-112.0-112.0-110.0-110.0-110.0-110.0-110.0-110.0-107.0-99.0-85.0-85.0-85.0-85.0-85.0-83.0-83.0-83.0-83.0-83.0-61.0-61.0-61.0-61.0-61.0-61.0-61.0-61.0-61.0-61.0-61.0-61.0-61.0-61.0-64.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.5-0.5-0.5-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.6
Percentage of Assets-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.2
Percentage of Assets ed:OtherChangesStockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value-19.0-21.0-25.0-14.0-19.0-11.0-12.0-16.0-18.0-20.0-22.0-26.0-26.0-27.0-28.0-27.0-32.0-33.0-34.0-34.0-38.0-39.0-40.0-45.0-19.0-20.0-21.0-25.0-46.0-48.0-50.0-53.0-58.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.3-0.3-0.3-0.3-0.3-0.4-0.1-0.2-0.2-0.2-0.4-0.4-0.4-0.4-0.5
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value965588368808822881988168805480318008757771176375635063236298627459045878585458305807505850305008499349934991499349934993499549904990498949914991
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest48.145.846.244.044.544.244.244.344.843.342.340.140.640.440.841.540.740.540.940.841.638.338.538.439.039.139.739.340.140.240.841.042.042.042.143.6
Percentage of Assets15.314.214.013.813.913.813.914.414.413.813.212.912.912.913.112.712.012.212.112.312.311.111.011.111.211.411.312.312.412.312.311.911.912.012.112.7
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-19.0-21.0-25.0-12.0-14.0-14.0-19.0-10.0-11.0-12.0-16.0-18.0-20.0-22.0-26.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1
Percentage of Assets us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value373636353535353535343434343434333333333333323232323232323232323232323232
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.30.30.30.30.30.30.30.30.30.30.3
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312012-12-31
Value310249218217216206191175156132113117.07.07.08.08.08.08.08.08.08.09.09.09.09.09.09.00.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.51.31.11.21.21.11.01.00.90.80.70.10.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.00.0
Percentage of Assets0.50.40.30.40.40.30.30.30.30.20.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value112311133211178113911115411220111001105110825109151072810619104071044210235994497019736955995579264923691239137890088718691879485438515833882858001800979977568
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest56.058.858.660.960.560.860.960.960.662.463.766.866.566.766.465.866.967.166.866.966.470.069.870.069.569.569.169.268.668.568.168.167.367.467.466.2
Percentage of Assets17.818.217.819.118.919.019.119.819.519.819.921.421.221.421.320.219.820.119.820.219.620.320.020.319.920.219.621.621.221.020.519.719.119.219.419.3
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1038.0-1037.0-1034.0-1032.0-1032.0-1032.0-1032.0-1034.0-1034.0-1031.0-1030.0-1037.0-1033.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-5.2-5.4-5.4-5.5-5.6-5.6-5.7-5.7-5.8-5.9-6.2-6.5-6.6-6.6-6.7-6.9-7.2-7.2-7.3-7.3-7.4-7.9-7.9-8.0-8.1-8.1-8.2-8.1-8.3-8.3-8.4-8.5-8.7-8.7-8.7-9.0
Percentage of Assets-1.6-1.7-1.7-1.7-1.8-1.8-1.8-1.9-1.9-1.9-1.9-2.1-2.1-2.1-2.2-2.1-2.1-2.1-2.2-2.2-2.2-2.3-2.3-2.3-2.3-2.4-2.3-2.5-2.6-2.5-2.5-2.5-2.5-2.5-2.5-2.6
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities

us-gaap:RetainedEarningsAccumulatedDeficit

srt:ParentCompany


Retained
Period End2020-12-312019-12-312018-12-312017-12-31
Value10003993395759088
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0
Percentage of Assets15.917.117.818.9
Percentage of Assets srt:ParentCompany46.548.149.052.7

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-25000000.0-19000000.0-16000000.0-26000000.0-27000000.0-34000000.0-38000000.0-39000000.0-40000000.0-45000000.0-19000000.0-20000000.0-21000000.0-25000000.0-46000000.0-48000000.0-50000000.0-53000000.0-58000000.0-40000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-7000000.0-6000000.0-5000000.0-6000000.0-7000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax28.031.631.223.125.9
Percentage of Assets-0.0-0.0-0.0-0.0-0.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.-0.0-0.0-0.0-0.0-0.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value310249218217216206191175156132113117.07.07.08.08.08.08.08.08.08.09.09.09.09.09.09.0
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.40.30.40.40.30.30.30.30.20.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterest dei:LegalEntity, us-gaap:BusinessAcquisition

ed:TaxEquityInvestors, ed:CopperMountainMesquiteSolar


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value126130134137140137126115998371
Percentage of MinorityInterest40.652.261.563.164.866.566.065.763.562.962.8
Percentage of Assets0.20.20.20.20.20.20.20.20.20.20.1
Percentage of Assets ed:TaxEquityInvestors ed:CopperMountainMesquiteSolar0.00.00.00.00.00.00.00.00.00.00.0

ed:TaxEquityInvestors, ed:GreatValleySolar


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value9085827873666257483933
Percentage of MinorityInterest29.034.137.635.933.832.032.532.630.829.529.2
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets ed:TaxEquityInvestors ed:GreatValleySolar0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterest us-gaap:BusinessAcquisition

ed:CEDNevadaVirginia


Minority
Period End2021-06-302021-03-31
Value9233
Percentage of MinorityInterest29.713.3
Percentage of Assets0.10.1
Percentage of Assets ed:CEDNevadaVirginia0.00.0

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-06-302020-06-302020-03-312020-01-312019-06-302019-03-312018-12-312017-09-302016-06-30
Value7750.08888400425705343702
Percentage of StockIssuedDuringPeriodValueNewIssues100.00.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

ed:OtherChangesStockholdersEquity


Stock
Period End2021-06-302019-06-302019-03-312018-12-312017-09-302016-06-30
Value-11.0-3.0-8.0-14.0-2.0-22.0
Percentage of StockIssuedDuringPeriodValueNewIssues-1.4-0.8-1.9-2.0-0.6-3.1
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets ed:OtherChangesStockholdersEquity0.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302020-03-312019-06-302019-03-312018-12-312017-09-302016-06-30
Value78588402433719345723
Percentage of StockIssuedDuringPeriodValueNewIssues101.3100.0100.5101.9102.0100.6103.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.0

us-gaap:CommonStock


Stock
Period End2021-06-302019-06-302018-12-312016-05-312016-06-30
Value1.01.07057021.0
Percentage of StockIssuedDuringPeriodValueNewIssues0.10.2100.00.10.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-30
Value34
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0
Percentage of Assets0.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-30
Value34
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0
Percentage of Assets0.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-312017-06-302017-03-312016-06-302016-03-31
Value4.03.08.02.02.0113.02.00.00.00.00.00.01.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312016-03-31
Value4.03.08.02.02.0113.02.01.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1104289830188768412117442210744641095560897143114065311264481123705110752413142651057-84.0961391845402976572122736214071797941.0
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.48.028.65.629.213.140.812.641.213.939.017.034.74.338.520.342.813.941.520.639.616.645.87.637.5-2.633.111.430.513.132.915.841.010.844.84.826.30.0

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value220734-16.063534010121998963951119430599561076556854380
Percentage of NetCashProvidedByUsedInOperatingActivities76.188.4-8.582.782.586.247.283.485.1102.276.866.839.294.485.175.884.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.125.3-0.524.210.835.16.034.411.939.813.023.21.736.317.332.411.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.01.90.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-904.0-1096.0-1240.0-1052.0-964.0-968.0-898.0-1008.0-988.0-888.0-2524.0-1081.0-957.0-909.0-1131.0-869.0-866.0-837.0-1259.0-731.0-1868.0-1118.0-764.0-683.0-549.0-663.0-656.0-762.0-615.0-490.0-539.0-482.0-633.0-496.0-609.0-559.0-547.0-460.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-30.6-30.4-42.7-31.5-36.7-30.7-31.2-30.2-37.9-26.7-89.8-32.8-37.1-27.3-38.2-27.1-32.9-25.9-46.5-21.4-66.9-35.4-26.6-19.6-19.5-20.8-22.6-22.2-22.2-15.9-18.2-13.3-21.1-14.8-19.4-15.1-18.1-13.3

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-902.0-1004.0-838.0-788.0-786.0-687.0-846.0-841.0-750.0-808.0-871.0-819.0-808.0-879.0-739.0-727.0-733.0
Percentage of NetCashProvidedByUsedInInvestingActivities82.381.079.781.781.276.583.985.184.532.080.685.688.977.785.083.987.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-25.0-34.6-25.1-30.0-24.9-23.9-25.4-32.3-22.5-28.7-26.4-31.7-24.2-29.7-23.0-27.6-22.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.0-27.70.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value821-472.01532-167.0-33.0913688-131.0410-108.02190-155.0298605719-531.0489-320.0762-690.01560-287.050-255.010748520-941.0382209-187.0-184.0-618.0312-658.0400-156.0286
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.8-13.152.8-5.0-1.328.923.9-3.915.7-3.277.9-4.711.518.224.3-16.518.6-9.928.1-20.255.8-9.11.7-7.33.815.20.7-27.413.86.8-6.3-5.1-20.69.3-21.010.8-5.28.3

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-355.01314-219.0-54.0816593-124.0379-111.0490-371.0475596518-569.0623-332.0
Percentage of NetCashProvidedByUsedInFinancingActivities75.285.8131.1163.689.486.294.792.4102.822.4239.4159.498.572.0107.2127.4103.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-9.945.3-6.6-2.125.820.6-3.714.6-3.317.4-11.218.417.917.5-17.723.7-10.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.020.40.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1021-1279.01122-1031.0-229.0357964-717.0496-532.0761-676.0238-161.0734-732.0740-728.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.6-35.538.6-30.9-8.711.333.5-21.519.0-16.027.1-20.59.2-4.824.8-22.828.1-22.6

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Cash
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-1037.01044-1073.0-207.0370918-771.0434-466.0801-812.0255-156.0713-752.0750-685.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect81.193.0104.190.4103.695.2107.587.587.6105.3120.1107.196.997.1102.7101.494.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-28.836.0-32.1-7.911.731.9-23.116.7-14.028.5-24.69.9-4.724.1-23.428.5-21.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.0-5.30.00.00.00.0

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-47.077-99.01231.060511311810810015354101-141.0267103256259256941741872642417894262-33.0195-76.0250-47.0-87.02401987868123187-51.0232975169.037
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxExpenseBenefit dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Deferred
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value113-33.0154-47.094-116.0154-32.01228.0197411089.024092234
Percentage of DeferredIncomeTaxExpenseBenefit146.833.3125.2-4700.0156.7-227.5117.6-177.8113.08.0128.875.9106.9-6.489.989.391.4

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value33-178.0151187-12.0-156.07789-48.0-108.0-38.053-91.03014940-16.0-78.0-113.016363-84.0-162.0241-100.0-58.0-63.033-92.011375-72.0-37.0-84.093107-11.0-78.0-145.02678-154.083-26.021-100.0
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayable dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-117.0116165-21.0-115.08548-65.0-75.05.039-108.03714540-19.0-41.0
Percentage of IncreaseDecreaseInAccountsPayable65.776.888.2175.073.7110.453.9135.469.4-13.273.6118.7123.397.3100.0118.852.6

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-146.02812212092687-15.0157-208.043-106.0251-152.01477.0127-194.066-69.0239-131.030-178.0117-278.0243-79.059-339.0315-22.062-146.0135-97.0285-35.0-54.0-54.076-77.05.01286-111.0139
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsReceivable dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2692271832878-5.0145-179.036-65.0232-140.01263.0107-179.054
Percentage of IncreaseDecreaseInAccountsReceivable95.7102.787.6107.789.733.392.486.183.761.392.492.185.742.984.392.381.8

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value22-17.03.01710.0-26.0-6.01417-31.0162017-33.0-3.0-20.044-26.02.014-21.0-8.010.016-8.0-40.0292120-60.0-5.04751-60.0-25.01812-31.0-19.06565-103.0-16.03625-52.0
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInInventories dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-10.04.010.04.0-20.0-2.08.07.0-24.0141314-24.0-1.01424-20.0
Percentage of IncreaseDecreaseInInventories58.8133.358.840.076.933.357.141.277.487.565.082.472.733.3-70.054.576.9

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1104289830188768412117442210744641095560897143114065311264481123705110752413142651057-84.0961391845402976572122736214071797941.0
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.48.028.65.629.213.140.812.641.213.939.017.034.74.338.520.342.813.941.520.639.616.645.87.637.5-2.633.111.430.513.132.915.841.010.844.84.826.30.0

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value220734-16.063534010121998963951119430599561076556854380
Percentage of NetCashProvidedByUsedInOperatingActivities76.188.4-8.582.782.586.247.283.485.1102.276.866.839.294.485.175.884.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.125.3-0.524.210.835.16.034.411.939.813.023.21.736.317.332.411.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.01.90.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1654194349319037529547315242433143518842850545717538820649723231017642821937082436212361234464172192207440214280193386168314235353186229
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.611.61.514.87.211.910.214.25.812.711.813.27.312.817.114.26.612.07.614.58.39.86.512.47.910.22.912.97.39.58.213.36.16.07.112.87.79.16.510.65.69.47.59.56.26.6

us-gaap:NetIncomeLoss dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value465222405152406272414152412227431149389221401143339
Percentage of NetIncomeLoss111.0516.382.280.0108.392.287.5100.097.268.699.179.390.943.887.781.787.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.97.612.15.812.99.412.45.812.48.113.15.811.77.512.55.410.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.013.30.00.00.00.0

us-gaap:NetIncomeLoss dei:LegalEntity, us-gaap:StatementEquityComponents

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:RetainedEarnings


Net
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value465405152406414152412227431149389
Percentage of NetIncomeLoss111.082.280.0108.387.5100.097.268.699.179.390.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.912.15.812.912.45.812.48.113.15.811.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc. us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidatedEntities

srt:Subsidiaries


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value128465152406
Percentage of NetIncomeLoss77.6111.080.0108.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.312.95.812.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries0.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:Subsidiaries, us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value128465152406
Percentage of NetIncomeLoss77.6111.080.0108.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.312.95.812.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Subsidiaries us-gaap:RetainedEarnings0.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11842049502202392313503179445331435188428
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.011.71.715.07.712.410.915.16.913.411.813.27.312.8

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-47.01.09.01217302721
Percentage of ProfitLoss-39.80.21.85.94.36.015.14.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.60.00.30.50.50.91.00.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value165419493190375473152424331435188428
Percentage of ProfitLoss139.899.898.294.195.794.084.995.3100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.611.614.87.211.914.25.812.711.813.27.312.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-904.0-1096.0-1240.0-1052.0-964.0-968.0-898.0-1008.0-988.0-888.0-2524.0-1081.0-957.0-909.0-1131.0-869.0-866.0-837.0-1259.0-731.0-1868.0-1118.0-764.0-683.0-549.0-663.0-656.0-762.0-615.0-490.0-539.0-482.0-633.0-496.0-609.0-559.0-547.0-460.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-30.6-30.4-42.7-31.5-36.7-30.7-31.2-30.2-37.9-26.7-89.8-32.8-37.1-27.3-38.2-27.1-32.9-25.9-46.5-21.4-66.9-35.4-26.6-19.6-19.5-20.8-22.6-22.2-22.2-15.9-18.2-13.3-21.1-14.8-19.4-15.1-18.1-13.3

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-902.0-1004.0-838.0-788.0-786.0-687.0-846.0-841.0-750.0-808.0-871.0-819.0-808.0-879.0-739.0-727.0-733.0
Percentage of NetCashProvidedByUsedInInvestingActivities82.381.079.781.781.276.583.985.184.532.080.685.688.977.785.083.987.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-25.0-34.6-25.1-30.0-24.9-23.9-25.4-32.3-22.5-28.7-26.4-31.7-24.2-29.7-23.0-27.6-22.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.0-27.70.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value821-472.01532-167.0-33.0913688-131.0410-108.02190-155.0298605719-531.0489-320.0762-690.01560-287.050-255.010748520-941.0382209-187.0-184.0-618.0312-658.0400-156.0286
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.8-13.152.8-5.0-1.328.923.9-3.915.7-3.277.9-4.711.518.224.3-16.518.6-9.928.1-20.255.8-9.11.7-7.33.815.20.7-27.413.86.8-6.3-5.1-20.69.3-21.010.8-5.28.3

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-355.01314-219.0-54.0816593-124.0379-111.0490-371.0475596518-569.0623-332.0
Percentage of NetCashProvidedByUsedInFinancingActivities75.285.8131.1163.689.486.294.792.4102.822.4239.4159.498.572.0107.2127.4103.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-9.945.3-6.6-2.125.820.6-3.714.6-3.317.4-11.218.417.917.5-17.723.7-10.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.00.020.40.00.00.00.0

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312010-12-312010-09-30
Value15382501250750.0160010280.01164825112526516400.07000.05004978250.015472189090.02380.010000.00.08500.00.02197000.00.00.0400225170
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.00.00.0100.00.00.0100.0100.00.00.00.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfLongTermDebt dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-30
Value6000.00.016006000.07000.011000.07000.0
Percentage of ProceedsFromIssuanceOfLongTermDebt48.00.00.0100.058.40.060.10.097.80.0100.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1187695552140438493456461161970060910.05.03.0184083284015.01.0355100450.02.00.02782002.01.01975091.03021.01.01.00.02.01.023035538145
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Repayments
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value0.00.00.00.06006360.00.0
Percentage of RepaymentsOfLongTermDebt0.00.00.00.096.990.90.00.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value254253244244244243234235229226211211211209203202199199193192193185173180190190186185184184181180180180185175174175174173173173161157156155
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-10.016.0-7.019.00.040.12-0.020.20.110.2-0.010.280.170.21-0.140.370.370.37-0.010.390.350.35-0.010.370.320.35-0.020.370.320.3500.350.270.23
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateContinuingOperations dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Effective
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value20.0-2.019.00.040.19-0.010.220.150.23-0.010.220.170.2300.380.390.39
Percentage of EffectiveIncomeTaxRateContinuingOperations125.028.6100.0100.0158.350.0110.0136.4115.0100.078.6100.0109.5-0.0102.7105.4105.4

us-gaap:EffectiveIncomeTaxRateContinuingOperations dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Effective
Period End2021-06-302020-06-30
Value-14.04.0
Percentage of EffectiveIncomeTaxRateContinuingOperations140.010000.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value64756227582054951020595371153411447120841108585667640
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilities dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value64116000573953069450
Percentage of DeferredTaxLiabilities99.096.498.696.692.6

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value3630326329802676265028572586
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsNet dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value22642040177417741864
Percentage of DeferredTaxAssetsNet62.462.559.566.370.3

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value15141414131313158.07.06.01110.010.0124140404237363634343434349.0861309386118155
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefits dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Unrecognized
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value3.03.04.03.03.02.04.05.04.04.05.04.03.05.0212.02.0
Percentage of UnrecognizedTaxBenefits21.421.428.623.123.115.426.762.557.166.745.540.030.041.750.05.95.9

us-gaap:UnrecognizedTaxBenefits dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Unrecognized
Period End2021-06-30
Value4.0
Percentage of UnrecognizedTaxBenefits26.7

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value22403333161511
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0

Proceeds From Repayments Of Short Term Debt

us-gaap:ProceedsFromRepaymentsOfShortTermDebt

us-gaap:ProceedsFromRepaymentsOfShortTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-03-312010-09-302010-06-302010-03-31
Value-97.01834116605-484.0392139-274.0-1131.01214483-520.0812221-680.0200-218.0453-107.0-491.0-330.0369-85.0726-281.0-625.0-106.0701-621.0231-180.0379482464693-322.0475
Percentage of ProceedsFromRepaymentsOfShortTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromRepaymentsOfShortTermDebt dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Proceeds
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-233.0669-124.0518-540.020781-236.0-107.0188454-363.07633.0-603.0305-155.0
Percentage of ProceedsFromRepaymentsOfShortTermDebt-127.31631.7-775.085.6111.652.858.386.19.515.594.069.894.01.488.7152.571.1

ed:AdjustmentstoAdditionalPaidinCapitalContributionsbyParent dei:LegalEntity

ed:AdjustmentstoAdditionalPaidinCapitalContributionsbyParent

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Adjustmentsto
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12515025252562522525252545
Percentage of AdjustmentstoAdditionalPaidinCapitalContributionsbyParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:AdjustmentstoAdditionalPaidinCapitalContributionsbyParent dei:LegalEntity, us-gaap:StatementEquityComponents

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:AdditionalPaidInCapital


Adjustmentsto
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12515025252562522525252545
Percentage of AdjustmentstoAdditionalPaidinCapitalContributionsbyParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:AdjustmentstoAdditionalPaidinCapitalContributionsbyParent us-gaap:ConsolidatedEntities

srt:Subsidiaries


Adjustmentsto
Period End2021-06-302021-03-312020-06-302020-03-31
Value8511252525
Percentage of AdjustmentstoAdditionalPaidinCapitalContributionsbyParent0.0100.0100.0100.0

ed:AdjustmentstoAdditionalPaidinCapitalContributionsbyParent us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

srt:Subsidiaries, us-gaap:AdditionalPaidInCapital


Adjustmentsto
Period End2021-06-302021-03-312020-06-302020-03-31
Value8511252525
Percentage of AdjustmentstoAdditionalPaidinCapitalContributionsbyParent0.0100.0100.0100.0

ed:CapitalAndRetirementCosts dei:LegalEntity, us-gaap:LossContingenciesByNatureOfContingency, us-gaap:RegulatoryAgency

ed:CapitalAndRetirementCosts

ed:ConsolidatedEdisonCompanyofNewYorkInc., ed:ManhattanSteamMainRupture, ed:NYSPSC


Capital
Period End2021-03-31
Value9000000.0
Percentage of CapitalAndRetirementCosts100.0

ed:ContractwithCustomerLiabilityDecreaseFromBillings

ed:ContractwithCustomerLiabilityDecreaseFromBillings


Contractwith
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-24.00.0310.0-1.02.00.00.04.03.0-1.032
Percentage of ContractwithCustomerLiabilityDecreaseFromBillings100.00.0100.00.0100.0100.00.00.0100.0100.0100.0100.0

ed:ContractwithCustomerLiabilityUnbilledRevenueAccrualsAndDeferrals

ed:ContractwithCustomerLiabilityUnbilledRevenueAccrualsAndDeferrals


Contractwith
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value95-31.030-26.048-51.032-33.015-11.0117-22.0-65.0-48.0150-19.0-23.05.0
Percentage of ContractwithCustomerLiabilityUnbilledRevenueAccrualsAndDeferrals100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:ContractwithCustomerLiabilityUnbilledRevenueAccrualsAndDeferrals dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Contractwith
Period End2021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-53.013-41.041-17.0-2.0-19.047-7.0-23.0-13.054-19.0-23.05.0
Percentage of ContractwithCustomerLiabilityUnbilledRevenueAccrualsAndDeferrals171.027.180.4128.151.5-13.3172.740.231.835.427.136.0100.0100.0100.0

ed:CreditExposureIndependentSystemOperators

ed:CreditExposureIndependentSystemOperators


Credit
Period End2021-06-302021-03-312020-12-31
Value10.095-8.0
Percentage of CreditExposureIndependentSystemOperators100.0100.0100.0

ed:CreditExposureNonratedCounterParties

ed:CreditExposureNonratedCounterParties


Credit
Period End2021-06-302021-03-312020-12-31
Value1962-29.0
Percentage of CreditExposureNonratedCounterParties100.0100.0100.0

ed:DeferredDerivativeGainsLosses

ed:DeferredDerivativeGainsLosses


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value16616-64.043-8.02.06.015-18.0-1.09.06.012-24.031-3.0-21.0-3.019-3.011-4.02.0-1.0-2.03.03411-3.0-34.0-13.01.09.0-11.07.0-6.01.0
Percentage of DeferredDerivativeGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:DeferredDerivativeGainsLosses dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Deferred
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value14-61.040-8.02.06.015-15.0-2.010.08.09.0-23.028-2.0-17.0-5.0
Percentage of DeferredDerivativeGainsLosses87.595.393.0100.0100.0100.0100.083.3200.0111.1133.375.095.890.366.781.0166.7

ed:DeferredDerivativeGainsLosses dei:LegalEntity, us-gaap:BalanceSheetLocation

ed:ConsolidatedEdisonCompanyofNewYorkInc., ed:DeferredDerivativeGainsCurrent


Deferred
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value17-47.024-2.0-1.02.015-15.03.0116.06.0-22.026-3.0-17.0-2.0
Percentage of DeferredDerivativeGainsLosses106.273.455.825.0-50.033.3100.083.3-300.0122.2100.050.091.783.9100.081.066.7

ed:ConsolidatedEdisonCompanyofNewYorkInc., ed:DeferredDerivativeGainsNonCurrent


Deferred
Period End2021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-3.016-6.03.04.00.00.0-5.0-1.02.03.0-1.02.01.00.0-3.0
Percentage of DeferredDerivativeGainsLosses-18.837.275.0150.066.70.0-0.0500.0-11.133.325.04.26.5-33.3-0.0100.0

ed:DeferredDerivativeGainsLosses dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Deferred
Period End2021-06-302020-06-30
Value153-8.0
Percentage of DeferredDerivativeGainsLosses92.2100.0

ed:DeferredDerivativeGainsLosses dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, ed:DeferredDerivativeGainsCurrent


Deferred
Period End2021-06-302020-06-30
Value119-2.0
Percentage of DeferredDerivativeGainsLosses71.725.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, ed:DeferredDerivativeGainsNonCurrent


Deferred
Period End2021-06-302020-06-30
Value34-6.0
Percentage of DeferredDerivativeGainsLosses20.575.0

ed:DeferredDerivativeGainsLosses us-gaap:BalanceSheetLocation

ed:DeferredDerivativeGainsCurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-30
Value12819-49.026-2.0-1.01.015-16.05.010.06.05.0-22.029-4.0-21.00.017-1.010.0-4.01.0-1.0-2.03.0306.0-1.0-13.01.07.0
Percentage of DeferredDerivativeGainsLosses77.1118.876.660.525.0-50.016.7100.088.9-500.0111.1100.041.791.793.5133.3100.0-0.089.533.390.9100.050.0100.0100.0100.088.254.533.3100.0100.077.8

ed:DeferredDerivativeGainsNonCurrent


Deferred
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value38-3.017-6.03.05.00.0-2.0-6.0-1.00.07.0-2.02.01.00.0-3.02.0-2.01.00.01.00.00.00.04.05.0-2.0
Percentage of DeferredDerivativeGainsLosses22.9-18.839.575.0150.083.30.011.1600.0-11.10.058.38.36.5-33.3-0.0100.010.566.79.1-0.050.0-0.0-0.00.011.845.566.7

ed:DeferredGainLossLiability

ed:DeferredGainLossLiability


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value0.027-77.0-47.0-22.0-155.0-92.0-11.0-151.0-47.0-26.03669-74.056-63.0-27.0-65.0-39.0-75.084-159.0-118.0-31.0-53.024113-36.0-12.011330-2.0-48.056-23.01311-120.0-151.0-53.0-16.01266-290.0
Percentage of DeferredGainLossLiability0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:DeferredGainLossLiability dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Deferred
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value25-72.0-42.0-23.0-140.0-83.0-10.0-139.0-40.0-22.03364-68.051-55.0-27.0-59.0
Percentage of DeferredGainLossLiability92.693.589.4104.590.390.290.992.185.184.691.792.891.991.187.3100.090.8

ed:DeferredGainLossLiability dei:LegalEntity, us-gaap:BalanceSheetLocation

ed:ConsolidatedEdisonCompanyofNewYorkInc., ed:DeferredDerivativeLossesCurrent


Deferred
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3.0-73.0-11.032-12.0-55.06.0-34.00.0-15.02542-44.038-9.0201.0
Percentage of DeferredGainLossLiability11.194.823.4-145.57.759.8-54.522.5-0.057.769.460.959.567.914.3-74.1-1.5

ed:ConsolidatedEdisonCompanyofNewYorkInc., ed:RecoverableEnergyCosts


Deferred
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.0-33.0-19.0-40.0-86.0-42.0-32.0-37.0-14.0-12.0-6.0-34.025-28.0-38.0-39.0-40.0
Percentage of DeferredGainLossLiability7.442.940.4181.855.545.7290.924.529.846.2-16.7-49.3-33.8-50.060.3144.461.5

ed:ConsolidatedEdisonCompanyofNewYorkInc., ed:RegulatoryAssetsNonCurrent


Deferred
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2034-12.0-15.0-42.01416-68.0-26.05.01456-49.041-8.0-8.0-20.0
Percentage of DeferredGainLossLiability74.1-44.225.568.227.1-15.2-145.545.055.3-19.238.981.266.273.212.729.630.8

ed:DeferredGainLossLiability dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Deferred
Period End2021-06-302020-06-30
Value-1.0-23.0
Percentage of DeferredGainLossLiability0.0104.5

ed:DeferredGainLossLiability dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, ed:DeferredDerivativeLossesCurrent


Deferred
Period End2021-06-302020-06-30
Value2232
Percentage of DeferredGainLossLiability0.0-145.5

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, ed:RecoverableEnergyCosts


Deferred
Period End2021-06-302020-06-30
Value-45.0-40.0
Percentage of DeferredGainLossLiability0.0181.8

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, ed:RegulatoryAssetsNonCurrent


Deferred
Period End2021-06-302020-06-30
Value22-15.0
Percentage of DeferredGainLossLiability0.068.2

ed:DeferredGainLossLiability us-gaap:BalanceSheetLocation

ed:DeferredDerivativeLossesCurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value244.0-75.0-9.036-14.0-59.06.0-36.0-3.0-17.02544-48.041-11.0220.03.0-19.068-30.0-56.08.0-11.04317-6.0-2.0
Percentage of DeferredGainLossLiability0.014.897.419.1-163.69.064.1-54.523.86.465.469.463.864.973.217.5-81.5-0.0-7.725.381.018.947.5-25.820.8179.215.016.716.7

ed:RecoverableEnergyCosts


Deferred
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-30
Value-47.0-38.0-23.0-45.0-96.0-48.0-35.0-41.0-18.0-13.0-4.0-34.025-29.0-40.0-40.0-45.0-49.0-39.0-52.0-73.0-44.0-53.0-40.00.094-33.0-7.094-17.0-19.0-14.011-33.0-60.0-63.0-74.0-53.0
Percentage of DeferredGainLossLiability0.049.448.9204.561.952.2318.227.238.350.0-11.1-49.3-33.8-51.863.5148.169.2125.652.0-61.945.937.3171.075.50.083.291.758.383.2-56.7950.029.219.6143.5-461.5-572.761.7331.2

ed:RegulatoryAssetsNonCurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value232336-15.0-13.0-45.01518-74.0-26.04.01559-51.044-12.0-9.0-20.07.0-17.068-56.0-18.014-2.0-19.02.03.0-3.0
Percentage of DeferredGainLossLiability0.085.2-46.831.959.129.0-16.3-163.649.055.3-15.441.785.568.978.619.033.330.8-17.922.781.035.215.3-45.23.8-79.21.8-8.325.0

ed:DefinedBenefitPlanCostCapitalized dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RetirementPlanType

ed:DefinedBenefitPlanCostCapitalized

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-06-30
Value3.02.0
Percentage of DefinedBenefitPlanCostCapitalized100.0100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302020-06-30
Value3932
Percentage of DefinedBenefitPlanCostCapitalized1300.01600.0

ed:DefinedBenefitPlanCostCapitalized dei:LegalEntity, us-gaap:RetirementPlanType

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.02.02.02.01.01.02.02.02.02.01.0
Percentage of DefinedBenefitPlanCostCapitalized0.00.00.0100.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3730323229262427243030
Percentage of DefinedBenefitPlanCostCapitalized0.00.00.01600.00.00.00.00.00.00.00.0

ed:DefinedBenefitPlanCostCapitalized us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3.03.02.02.02.02.01.01.02.02.02.02.0
Percentage of DefinedBenefitPlanCostCapitalized100.00.00.00.0100.00.00.00.00.00.00.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value413932343331282629263332
Percentage of DefinedBenefitPlanCostCapitalized1366.70.00.00.01650.00.00.00.00.00.00.00.0

ed:DefinedBenefitPlanCostCreditRecognized dei:LegalEntity, us-gaap:RetirementPlanType

ed:DefinedBenefitPlanCostCreditRecognized

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-1.0-1.0-1.0-1.0-4.0-4.0-4.0-3.0
Percentage of DefinedBenefitPlanCostCreditRecognized100.0100.0100.0100.0100.0100.0100.0100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value2222222255555558
Percentage of DefinedBenefitPlanCostCreditRecognized-2200.0-2200.0-2200.0-2200.0-1375.0-1375.0-1375.0-1933.3

ed:DefinedBenefitPlanCostCreditRecognized us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value272727282860606068
Percentage of DefinedBenefitPlanCostCreditRecognized0.0-2700.0-2700.0-2800.0-2800.0-1500.0-1500.0-1500.0-2266.7

ed:DepreciationExpenseOtherDeferredChargesAndNoncurrentAssetsAndPrepayments

ed:DepreciationExpenseOtherDeferredChargesAndNoncurrentAssetsAndPrepayments


Depreciation
Period End2021-03-31
Value3000000.0
Percentage of DepreciationExpenseOtherDeferredChargesAndNoncurrentAssetsAndPrepayments100.0

ed:DepreciationExpenseOtherDeferredChargesAndNoncurrentAssetsAndPrepayments dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Depreciation
Period End2021-03-31
Value3000000.0
Percentage of DepreciationExpenseOtherDeferredChargesAndNoncurrentAssetsAndPrepayments100.0

ed:DiscreteIncomeTaxBenefit us-gaap:TaxPeriod

ed:DiscreteIncomeTaxBenefit

us-gaap:TaxYear2013


Discrete
Period End2020-09-30
Value4000000.0
Percentage of DiscreteIncomeTaxBenefit100.0

ed:EarningsAdjustmentMechanismIncentiveRevenue dei:LegalEntity

ed:EarningsAdjustmentMechanismIncentiveRevenue

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Earnings
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.046
Percentage of EarningsAdjustmentMechanismIncentiveRevenue0.00.00.0100.0

ed:OrangeAndRocklandUtilitiesInc


Earnings
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.03.0
Percentage of EarningsAdjustmentMechanismIncentiveRevenue0.00.00.06.5

ed:EffectOfReconciliationToRateLevel dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:RetirementPlanType

ed:EffectOfReconciliationToRateLevel

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Effect
Period End2021-06-30
Value-1.0
Percentage of EffectOfReconciliationToRateLevel100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries, us-gaap:PensionPlansDefinedBenefit


Effect
Period End2021-06-302020-06-30
Value-52.0-59.0
Percentage of EffectOfReconciliationToRateLevel5200.00.0

ed:EffectOfReconciliationToRateLevel dei:LegalEntity, us-gaap:RetirementPlanType

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Effect
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-2.0-1.00.00.0-24.01.02.02.02.02.02.0
Percentage of EffectOfReconciliationToRateLevel0.00.00.00.00.00.00.00.00.00.00.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:PensionPlansDefinedBenefit


Effect
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-55.0-60.0-59.0-59.0-62.0-2.0-4.0-1.0-4.0-26.0-24.0
Percentage of EffectOfReconciliationToRateLevel0.00.00.00.00.00.00.00.00.00.00.0

ed:EffectOfReconciliationToRateLevel us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Effect
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.02.02.0-22.02.03.03.03.02.02.0
Percentage of EffectOfReconciliationToRateLevel0.00.00.00.00.00.00.00.00.00.0

us-gaap:PensionPlansDefinedBenefit


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-54.0-57.0-62.0-62.0-62.0-64.0-3.0-5.0-2.0-5.0-24.0-22.0
Percentage of EffectOfReconciliationToRateLevel5400.00.00.00.00.00.00.00.00.00.00.00.0

ed:EffectiveIncomeTaxRateReconciliationChangeInAllowanceForUncollectibleAccountsPercent

ed:EffectiveIncomeTaxRateReconciliationChangeInAllowanceForUncollectibleAccountsPercent


Effective
Period End2021-06-302020-06-30
Value-1.01.0
Percentage of EffectiveIncomeTaxRateReconciliationChangeInAllowanceForUncollectibleAccountsPercent100.0100.0

ed:EffectiveIncomeTaxRateReconciliationChangeInAllowanceForUncollectibleAccountsPercent dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Effective
Period End2021-06-302020-06-30
Value-1.01.0
Percentage of EffectiveIncomeTaxRateReconciliationChangeInAllowanceForUncollectibleAccountsPercent100.0100.0

ed:EffectiveIncomeTaxRateReconciliationCostOfRemovalPercent

ed:EffectiveIncomeTaxRateReconciliationCostOfRemovalPercent


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value5.02.001.00.042.001.00.02
Percentage of EffectiveIncomeTaxRateReconciliationCostOfRemovalPercent100.0100.00.0100.0100.0100.00.0100.0100.0

ed:EffectiveIncomeTaxRateReconciliationCostOfRemovalPercent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Effective
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1.0-1.02.00.052.000.990.02
Percentage of EffectiveIncomeTaxRateReconciliationCostOfRemovalPercent50.00.0200.0125.0100.00.099.0100.0

ed:EffectiveIncomeTaxRateReconciliationInjuriesAndDamagesReservePercent

ed:EffectiveIncomeTaxRateReconciliationInjuriesAndDamagesReservePercent


Effective
Period End2021-06-30
Value-2.0
Percentage of EffectiveIncomeTaxRateReconciliationInjuriesAndDamagesReservePercent100.0

ed:EffectiveIncomeTaxRateReconciliationInjuriesAndDamagesReservePercent dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Effective
Period End2021-06-30
Value-2.0
Percentage of EffectiveIncomeTaxRateReconciliationInjuriesAndDamagesReservePercent100.0

ed:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationOfExcessDeferredFederalIncomeTaxesPercent

ed:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationOfExcessDeferredFederalIncomeTaxesPercent


Effective
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value-41.0-9.0-7.0-0.2-9.0-3.0-0.09
Percentage of EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationOfExcessDeferredFederalIncomeTaxesPercent100.0100.0100.0100.0100.0100.0100.0

ed:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationOfExcessDeferredFederalIncomeTaxesPercent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Effective
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value-7.0-8.0-0.25-8.0-3.0-0.09
Percentage of EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationOfExcessDeferredFederalIncomeTaxesPercent77.8114.3125.088.9100.0100.0

ed:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationOfExcessDeferredFederalIncomeTaxesPercent dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Effective
Period End2021-06-302020-06-30
Value-38.0-25.0
Percentage of EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationOfExcessDeferredFederalIncomeTaxesPercent92.712500.0

ed:EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent

ed:EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-3.0-1.00-1.0-0.03-0.01-0.010-0.02-0.010-0.01-0.0100-0.01-0.020
Percentage of EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent100.0100.00.0100.0100.0100.0100.00.0100.0100.00.0100.0100.00.00.0100.0100.00.0

ed:EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Effective
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.0-1.0-0.04-0.0100-0.0100-0.01-0.01-0.010-0.01-0.02-0.01
Percentage of EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent0.0100.0133.3100.0-0.00.050.0-0.00.0100.0100.00.00.0100.0100.00.0

ed:EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:ConsolidatedEdisonCompanyofNewYorkInc., srt:Subsidiaries


Effective
Period End2021-06-302020-06-30
Value-3.0-4.0
Percentage of EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent100.013333.3

ed:EffectiveIncomeTaxRateReconciliationTaxCreditRenewableEnergyCreditsPercent

ed:EffectiveIncomeTaxRateReconciliationTaxCreditRenewableEnergyCreditsPercent


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value8.01.01.01.00.040.0200.010.050.0100.010.030.0100.010.020.01
Percentage of EffectiveIncomeTaxRateReconciliationTaxCreditRenewableEnergyCreditsPercent100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0

ed:EquityMethodInvestmentRealizedGainLossOnDisposalBeforeTax us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

ed:EquityMethodInvestmentRealizedGainLossOnDisposalBeforeTax

ed:StagecoachGasServicesLLC


Equity
Period End2021-06-30
Value-39000000.0
Percentage of EquityMethodInvestmentRealizedGainLossOnDisposalBeforeTax100.0

ed:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainLossIncludedinRegulatoryAssetsandLiabilities

ed:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainLossIncludedinRegulatoryAssetsandLiabilities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value1.04.0-4.0-3.00.01.050-1.0-27.0-5.0-4.0-1.02.0-13.0-11.02.0-5.01.0-3.0-1.00.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainLossIncludedinRegulatoryAssetsandLiabilities100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

ed:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainLossIncludedinRegulatoryAssetsandLiabilities dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.


Fair
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value2.0-1.0-1.01.00.046-1.0-25.0-3.00.0-2.0-1.0-8.0-7.00.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainLossIncludedinRegulatoryAssetsandLiabilities50.025.033.30.00.092.0100.092.660.0-0.0200.0-50.061.563.60.0

ed:GainLossOnDispositionOfPropertyPlantEquipmentExcludingOilAndGasPropertyAndTimberPropertyAfterTax dei:LegalEntity, us-gaap:ConsolidatedEntities

ed:GainLossOnDispositionOfPropertyPlantEquipmentExcludingOilAndGasPropertyAndTimberPropertyAfterTax

ed:CleanEnergyBusinesses, srt:Subsidiaries


Gain
Period End2021-06-30
Value2000000.0
Percentage of GainLossOnDispositionOfPropertyPlantEquipmentExcl