ED


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

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

us-gaap:OperatingExpenses
dei:LegalEntity

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

us-gaap:InterestAndDebtExpense
dei:LegalEntity

us-gaap:InterestExpenseDebt
dei:LegalEntity

us-gaap:NonoperatingIncomeExpense
dei:LegalEntity

us-gaap:IncomeTaxExpenseBenefit
dei:LegalEntity

us-gaap:IncomeTaxesPaidNet
dei:LegalEntity

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ComprehensiveIncomeNetOfTax
dei:LegalEntity

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

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:Assets
dei:LegalEntity

us-gaap:LiabilitiesAndStockholdersEquity
dei:LegalEntity

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

us-gaap:AssetsCurrent
dei:LegalEntity

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity

us-gaap:AccountsReceivableNetCurrent
dei:LegalEntity

us-gaap:OtherAssetsCurrent
dei:LegalEntity

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
dei:LegalEntity
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:Collateral

us-gaap:LongTermInvestments
dei:LegalEntity

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

us-gaap:OtherAssetsNoncurrent
dei:LegalEntity

us-gaap:LiabilitiesCurrent
dei:LegalEntity

us-gaap:NotesPayableCurrent
dei:LegalEntity

us-gaap:LongTermDebtCurrent
dei:LegalEntity

us-gaap:AccountsPayableCurrent
dei:LegalEntity

us-gaap:TaxesPayableCurrent
dei:LegalEntity

us-gaap:OtherLiabilitiesCurrent
dei:LegalEntity

us-gaap:LongTermDebtNoncurrent
dei:LegalEntity

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
dei:LegalEntity

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

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

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

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

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:IncreaseDecreaseInInventories
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfLongTermDebt
dei:LegalEntity

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:EffectiveIncomeTaxRateContinuingOperations
dei:LegalEntity

us-gaap:UnrecognizedTaxBenefits
dei:LegalEntity

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
dei:LegalEntity

us-gaap:ProceedsFromRepaymentsOfShortTermDebt
dei:LegalEntity
dei:LegalEntity
ed:AdjustmentstoAdditionalPaidinCapitalContributionsbyParent
us-gaap:StatementEquityComponents, dei:LegalEntity
us-gaap:StatementScenario, us-gaap:LongTermContractForPurchaseOfElectricPower, dei:LegalEntity
ed:BaseRateIncreaseDecrease

ed:ContractwithCustomerLiabilityDecreaseFromBillings

ed:ContractwithCustomerLiabilityUnbilledRevenueAccrualsAndDeferrals
dei:LegalEntity

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

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

ed:EffectiveIncomeTaxRateReconciliationCARESActNetOperatingLossCarrybackPercent

ed:EffectiveIncomeTaxRateReconciliationCostOfRemoval
dei:LegalEntity

ed:EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent
dei:LegalEntity

ed:EffectiveIncomeTaxRateReconciliationTaxCreditRenewableEnergyCreditsPercent

ed:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainLossIncludedinRegulatoryAssetsandLiabilities
dei:LegalEntity

ed:IncomeBeforeInterestIncomeInterestExpenseAndIncomeTaxes
dei:LegalEntity

ed:IncreaseDecreaseInRevenueDecouplingMechanismReceivables
dei:LegalEntity

ed:IncreaseDecreaseinSystemBenefitChargeLiability
dei:LegalEntity

ed:LateFeeIncomeandOtherFeesNotCollected
dei:LegalEntity

ed:NetDeferredGainLoss
dei:LegalEntity

ed:PaymentsNonUtilityConstructionExpenditures
us-gaap:RetirementPlanType
ed:PeriodicBenefitCostAfterAmortizationOfRegulatoryAsset
us-gaap:RetirementPlanType, dei:LegalEntity
dei:LegalEntity
ed:RevenuesFromLatePaymentCollectionAndOtherFeesPerMonth

ed:UnbilledContractsReceivableDecreaseFromBillings

ed:UnbilledContractsReceivableRevenueRecognized
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:VariableInterestEntitiesByClassificationOfEntity
ed:VariableInterestEntityMeasureOfActivityNetIncomeLoss
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:VariableInterestEntitiesByClassificationOfEntity, dei:LegalEntity

us-gaap:AdjustmentForAmortization
dei:LegalEntity
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, dei:LegalEntity
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, dei:LegalEntity
us-gaap:StatementScenario, dei:LegalEntity
us-gaap:AmortizationOfRegulatoryAsset
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:CapitalExpendituresIncurredButNotYetPaid
us-gaap:PropertyPlantAndEquipmentByType, dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
dei:LegalEntity

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:ConstructionInProgressExpendituresIncurredButNotYetPaid
dei:LegalEntity

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

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

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

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

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

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
dei:LegalEntity

us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments
dei:LegalEntity

us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
dei:LegalEntity

us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
dei:LegalEntity

us-gaap:EnvironmentalRemediationExpense
dei:LegalEntity

us-gaap:EquityMethodInvestmentDividendsOrDistributions
us-gaap:IncomeStatementLocation
us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:IncomeStatementLocation, dei:LegalEntity
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
dei:LegalEntity

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
dei:LegalEntity

us-gaap:GainLossOnDispositionOfAssets1
dei:LegalEntity

us-gaap:GainLossOnSaleOfDerivatives

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
dei:LegalEntity

us-gaap:IncomeTaxReconciliationTaxContingencies
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsPayable
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsReceivable
dei:LegalEntity

us-gaap:IncreaseDecreaseInDeferredCharges
dei:LegalEntity

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

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:InterestPaidNet
dei:LegalEntity

us-gaap:InvestmentIncomeNet
dei:LegalEntity

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

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

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

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
dei:LegalEntity

us-gaap:OtherIncome

us-gaap:OtherIncreaseDecreaseInEnvironmentalLiabilities
dei:LegalEntity

us-gaap:OtherNoncashIncomeExpense
dei:LegalEntity

us-gaap:OtherNonoperatingExpense
dei:LegalEntity

us-gaap:PaymentsForConstructionInProcess
dei:LegalEntity

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromRemovalCosts
dei:LegalEntity

us-gaap:PaymentsOfDebtIssuanceCosts
dei:LegalEntity

us-gaap:PaymentsOfDividendsCommonStock
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:ProceedsFromSaleOfProductiveAssets
dei:LegalEntity
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:ProvisionForDoubtfulAccounts
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, dei:LegalEntity

us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions
dei:LegalEntity

us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
dei:LegalEntity
us-gaap:StatementScenario, dei:LegalEntity
us-gaap:PublicUtilitiesApprovedReturnOnEquityPercentage
us-gaap:StatementScenario, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, dei:LegalEntity
us-gaap:PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount
dei:LegalEntity, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, us-gaap:StatementScenario
us-gaap:PublicUtilitiesRequestedRateIncreaseDecreaseAmount
us-gaap:StatementScenario, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, dei:LegalEntity
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:StockIssuedDuringPeriodSharesNewIssues
us-gaap:FinancialInstrument, us-gaap:StatementEquityComponents, us-gaap:SubsequentEventType
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:FinancialInstrument, us-gaap:StatementEquityComponents, us-gaap:SubsequentEventType
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross
us-gaap:StatementEquityComponents

us-gaap:TaxesExcludingIncomeAndExciseTaxes
dei:LegalEntity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:VariableInterestEntitiesByClassificationOfEntity
us-gaap:VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:VariableInterestEntitiesByClassificationOfEntity, dei:LegalEntity
us-gaap:BusinessAcquisition
ed:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumePropertyPlantandEquipmentPropertyPlantandEquipmentNonUtilityPlantDepreciation
us-gaap:BusinessAcquisition
ed:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumePropertyPlantandEquipmentPropertyPlantandEquipmentNonUtilityPlantNet
us-gaap:StatementEquityComponents
ed:CommonStockEquityShares

ed:ContractWithCustomerLiabilityRevenueRecognizedPreviouslyOutstanding
us-gaap:SubsequentEventType
ed:DebtInstrumentCovenantComplianceMaximumAggregateLimitOfFailureToPayDebtOrDerivativeObligations

ed:DeferredTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCredit
dei:LegalEntity

ed:DerivativeAssetLiabilityGrossAmountOffsetInBalanceSheet
dei:LegalEntity

ed:DirectFinancingLeaseAccumulatedAmortization
dei:LegalEntity

ed:DisposalGroupIncludingDiscontinuedOperationPropertyPlantandEquipmentNonUtilityPlantNetNoncurrent
dei:LegalEntity

ed:EnergyRelatedInventoryFuelOilGasAndMaterialsAndSuppliesCost
dei:LegalEntity

ed:LiabilitiesNoncurrentExcludingLongTermDebt
dei:LegalEntity

ed:MaximumPotentialFutureExposureOnCreditRiskDerivativesWithCommodityExchangeBrokers
dei:LegalEntity

ed:NetUtilityPlant
dei:LegalEntity
us-gaap:StatementScenario, dei:LegalEntity
ed:PercentageOfDebtSecuritiesAmortizedCostBased

ed:ProvisionForInjuriesAndDamages
dei:LegalEntity
us-gaap:StatementScenario, us-gaap:PublicUtility, dei:LegalEntity
ed:PublicUtilitiesMaximumDeferralPercentage
us-gaap:StatementScenario, us-gaap:LongTermContractForPurchaseOfElectricPower, us-gaap:PublicUtility, dei:LegalEntity
ed:PublicUtilitiesPropertyPlantandEquipmentRateBaseAdjustments

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

ed:SystemBenefitsChargeLiabilityCurrent
dei:LegalEntity
us-gaap:EnvironmentalRemediationContingency
us-gaap:AccrualForEnvironmentalLossContingencies
us-gaap:EnvironmentalRemediationContingency, dei:LegalEntity

us-gaap:AccruedEnvironmentalLossContingenciesNoncurrent
dei:LegalEntity
us-gaap:EnvironmentalRemediationSite
us-gaap:EnvironmentalRemediationSite, dei:LegalEntity
us-gaap:DerivativeInstrumentRisk
us-gaap:AdditionalCollateralAggregateFairValue
us-gaap:DerivativeInstrumentRisk, dei:LegalEntity
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:AllowanceForDoubtfulAccountsReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, dei:LegalEntity

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
dei:LegalEntity

us-gaap:AllowanceForDoubtfulOtherReceivablesCurrent
dei:LegalEntity

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

us-gaap:CollateralAlreadyPostedAggregateFairValue
dei:LegalEntity

us-gaap:CommercialPaper
dei:LegalEntity

us-gaap:ConstructionInProgressGross

us-gaap:ContractWithCustomerAssetNet
dei:LegalEntity

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerRefundLiabilityCurrent
dei:LegalEntity

us-gaap:CreditDerivativeMaximumExposureUndiscounted
dei:LegalEntity

us-gaap:CreditRiskDerivativesAtFairValueNet
dei:LegalEntity
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, dei:LegalEntity
us-gaap:DebtInstrumentFaceAmount
dei:LegalEntity
us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DeferredCreditsAndOtherLiabilitiesNoncurrent
dei:LegalEntity
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear
us-gaap:RetirementPlanType, dei:LegalEntity
us-gaap:FairValueByAssetClass
us-gaap:DerivativeAssetFairValueGrossLiability
us-gaap:FairValueByAssetClass, dei:LegalEntity
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType
us-gaap:DerivativeAssetMeasurementInput
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, dei:LegalEntity

us-gaap:DerivativeAssets

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

us-gaap:DerivativeFairValueOfDerivativeNet
dei:LegalEntity

us-gaap:DerivativeLiabilities

us-gaap:DerivativeLiabilitiesCurrent
dei:LegalEntity

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

us-gaap:DirectFinancingLeaseResidualValueOfLeasedAsset

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

us-gaap:EmployeeRelatedLiabilitiesCurrent
dei:LegalEntity

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
dei:LegalEntity

us-gaap:FinanceLeaseLiability
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDue
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths
dei:LegalEntity

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent
dei:LegalEntity

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

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

us-gaap:IncomeTaxesReceivable

us-gaap:InterestPayableCurrent
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
dei:LegalEntity
us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue
us-gaap:FairValueByMeasurementBasis, dei:LegalEntity
us-gaap:StatementScenario, us-gaap:LongTermContractForPurchaseOfElectricPower, us-gaap:PublicUtility, dei:LegalEntity
us-gaap:LongTermDebtPercentageBearingVariableInterestRate
us-gaap:StatementScenario, us-gaap:PublicUtility, dei:LegalEntity
us-gaap:LossContingenciesByNatureOfContingency, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, dei:LegalEntity
us-gaap:LossContingencyAccrualAtCarryingValue

us-gaap:MarginDepositAssets
dei:LegalEntity

us-gaap:OperatingLeaseLiability
dei:LegalEntity

us-gaap:OperatingLeaseLiabilityCurrent
dei:LegalEntity

us-gaap:OperatingLeaseLiabilityNoncurrent
dei:LegalEntity

us-gaap:OtherAssetsMiscellaneousNoncurrent
dei:LegalEntity

us-gaap:OtherReceivables
dei:LegalEntity

us-gaap:PrepaidExpenseCurrent
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentCommon
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentNet
dei:LegalEntity

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

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

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

us-gaap:RegulatoryAssetsNoncurrent

us-gaap:RegulatoryLiabilities
dei:LegalEntity

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

us-gaap:RegulatoryLiabilityNoncurrent

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

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

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
us-gaap:ShortTermBorrowings
us-gaap:ShortTermDebtType
us-gaap:ShortTermDebtWeightedAverageInterestRate
us-gaap:ShortTermDebtType, dei:LegalEntity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnbilledContractsReceivable

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
dei:LegalEntity

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 334NA333329323NA312311311NA309306306NA305300294NA294294293NA294294294NA294294294NA294294294294294293284283282275
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 333NA332328322NA311310310NA307305305NA304299293NA292292292NA292292292NA292292292NA292292292292292292283282281274
us-gaap:EarningsPerShareBasic ▅▄▇▂▆▅▇▃▇█▇▂▆▃█▄▅▃▇▃▆▁▇▃▆▄█▃▃▃▇▃▄▆▂▅▆▃▄▂1.130.88999999999999971.420.461.311.04999999999999981.40.61.381.63999999999999971.480.571.270.68000000000000021.630.781.050.60000000000000011.460.751.260.27999999999999981.490.731.230.791.580.590.660.69999999999999971.50.730.951.310.571.071.240.650.80.55
us-gaap:EarningsPerShareDiluted ▅▄▇▂▆▅▇▃▇█▇▃▆▃█▄▅▃▇▃▆▁▇▃▆▄█▃▃▃▇▃▄▆▂▅▆▃▄▂1.120.89000000000000011.420.461.311.04999999999999981.390.61.371.63000000000000031.480.571.270.66000000000000011.620.771.050.58999999999999991.450.741.260.271.480.721.230.79999999999999981.580.590.650.69999999999999971.490.730.941.30.561.061.230.640.80.55
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▄▃▅▁▅▂▅▁▅▃▅▁▅▂▆▂▄▂▆▂▇▂▆▃█▃▆▂▄▃▆▂▄▇▃▅█▄▆▃3157288033372604332828113298258233332961321126333228270734172794315627073443278836162828339029113789286734842818318429013438277130783629299333493707301734622845
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,dei:LegalEntity us-gaap:OperatingSegments,ed:ConsolidatedEdisonCompanyofNewYorkInc.▇▄▇▁█▄█▂28102543289922372941250829592292NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:PublicUtility,dei:LegalEntity us-gaap:OperatingSegments,us-gaap:ElectricTransmission,ed:ConsolidatedEdisonCompanyofNewYorkInc.▁▂█▁▁▂█▁17321865258217511714181426311771NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:PublicUtility,dei:LegalEntity us-gaap:OperatingSegments,us-gaap:GasTransmission,ed:ConsolidatedEdisonCompanyofNewYorkInc.▇▄▁▂█▄▁▃833524263400910536264428NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Revenues ▅▃▅▂▆▃▅▁▅▃▄▁▅▁▆▂▄▁▆▂▇▂▆▃█▂▆▂▄▃▆▂▄▇▃▅█▃▆▂3234295133652744351429493328269633642961321126333228270734172794315627073443278836162828339029113789286734842818318429013438277130783629299333493707301734622845
 us-gaap:Revenues dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.▆▄▆▁█▃▇▁▇▃▆▁▆2854257328772331303925592899233828842520279922932856NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ConsolidationItems us-gaap:OperatingSegments3234NA336527443514NA332826963364NA321126333228NA3417279431562707344327883616282833902911378928673484NANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ConsolidationItems,dei:LegalEntity us-gaap:OperatingSegments,ed:ConsolidatedEdisonCompanyofNewYorkInc.▆▃▆▁█▃▇▁28542573287723313039255928992338NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ConsolidationItems,us-gaap:PublicUtility,dei:LegalEntity us-gaap:OperatingSegments,us-gaap:ElectricTransmission,ed:ConsolidatedEdisonCompanyofNewYorkInc.▁▂█▂▁▂█▁17701888254418331797186425711807NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ConsolidationItems,us-gaap:PublicUtility,dei:LegalEntity us-gaap:OperatingSegments,us-gaap:GasTransmission,ed:ConsolidatedEdisonCompanyofNewYorkInc.▇▄▁▃█▄▁▃834527275408921538264435NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ed:ConEdisonTransmission███████████▁▁1000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ProductOrService us-gaap:Electricity▁▂█▂▁▂█▂▁▂▇▂190620292753197119412001278319511877203926751965NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ProductOrService us-gaap:OilAndGasPurchased▇▄▁▂█▄▁▃▇▃▁▂9316013064491034601298489939540296435NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ProductOrService,dei:LegalEntity us-gaap:Electricity,ed:ConsolidatedEdisonCompanyofNewYorkInc.▁▂█▂▁▂█▁17701888254418331797186425711807NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ProductOrService,dei:LegalEntity us-gaap:OilAndGasPurchased,ed:ConsolidatedEdisonCompanyofNewYorkInc.▇▄▁▃█▄▁▃834527275408921538264435NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService srt:Fuel▆▃▁▁█▄▂▂78443126106623938NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:ElectricityPurchased▁▂▆▂▃▂█▃▂▂▅▄308343483352368357545388353348460408NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:OilAndGasOperationAndMaintenance▁▃█▅▅▄▅▄▇█▆▂700753847781794763797756836856811732NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:OilAndGasPurchased▄▃▁▂█▅▂▃▇▄▁▂23220998131442305164194378224115149NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService,dei:LegalEntity srt:Fuel,ed:ConsolidatedEdisonCompanyofNewYorkInc.▆▃▁▁█▄▂▂78443126106623938NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService,dei:LegalEntity us-gaap:ElectricityPurchased,ed:ConsolidatedEdisonCompanyofNewYorkInc.▁▂▆▂▃▃█▃273299423313322316472343NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService,dei:LegalEntity us-gaap:OilAndGasOperationAndMaintenance,ed:ConsolidatedEdisonCompanyofNewYorkInc.▁▃█▅▅▄▆▄569613712651659629666629NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService,dei:LegalEntity us-gaap:OilAndGasPurchased,ed:ConsolidatedEdisonCompanyofNewYorkInc.▅▄▁▂█▅▁▃195161527631718666118NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingExpenses ▃▂▃▂▅▃▃▁▄▃▂▁▃▁▄▂▃▂▄▂▆▄▄▃█▂▄▃▅▃▄▂▃▆▄▅▇▄▇▃2426238624982286272824232502227026092417233822112457222925812279251423082613231628902578257125013104239026292432265824482587229625172873259527233002258829702473
 us-gaap:OperatingExpenses dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.▅▄▅▂█▄▅▂▆▅▂▁▅2112205021541955231320552135195621792114196318702115NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingIncomeLoss ▇▄▇▃▆▅▇▃▆▄▇▃▆▃█▄▅▃▇▃▆▁▇▃▅▃▇▂▄▃▇▃▄▆▃▅▆▃▃▂808565867458786657826426755544873423771478940515642399830472726250819455685477855386526453851475561756398626705429492372
 us-gaap:OperatingIncomeLoss dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.▇▃▆▁▆▃▇▁▆▁█▂▇742523723376726504764382705406836423741NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:PublicUtility,dei:LegalEntity us-gaap:ElectricTransmission,ed:ConsolidatedEdisonCompanyofNewYorkInc.282NA803314257NA850318NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:PublicUtility,dei:LegalEntity us-gaap:GasTransmission,ed:ConsolidatedEdisonCompanyofNewYorkInc.369NA-2494344NA-3482NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:PublicUtility,dei:LegalEntity us-gaap:SteamPlant,ed:ConsolidatedEdisonCompanyofNewYorkInc.91NA-56-32125NA-52-18NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestAndDebtExpense █▄▆▆▅▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▂▆▁▂▂▂▁▂▂▂▁▁▂322219262263247222205197195184185180181179178170169167162162161156150150136144146151279149152153150144152152157149149155
 us-gaap:InterestAndDebtExpense dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.180NA181182183181175167166160157154153NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestExpenseDebt ██▇▇▇▆▅▅▅▅▄▄▄▄▄▃▃▃▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▂▂224228220219221204195190190187183179178174174167163163157156156149145147146145145145143146146149145145146147152148150151
 us-gaap:InterestExpenseDebt dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.██▇▆▇▇▆▅▅▄▃▁▁172171168165169170167162163159155151150NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NonoperatingIncomeExpense ▁▆▅▄▅▁▃▄▃▆▇▇▆▄█▅▄▄▅▅▄▄▆▅▅▄▄▄▄▄▄▄▄▄▄▅▅▅▅▅-392014314-33-11-3-151839342534911119104-326910452222-23-1591012816
us-gaap:IncomeTaxExpenseBenefit ▄▄▅▃▅▄▆▄▅▁▇▅▇▅█▅▆▄▇▅▆▃▇▅▆▅▇▄▄▅▇▅▅▇▄▆▆▅▅▄5553116191087117538117-127270102227963141241645724910119992591021981032506557992611061342258316920510612280
 us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.▃▂▄▁▄▂▄▁▄▄█▃▇956411927124521253111913424291218NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxesPaidNet ▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▃▃▅▁▃▅▄█22-13-1831111-13514-39-36-21-143-292188-197-2117102416NANANANANANANANANANANANANANANA
 us-gaap:IncomeTaxesPaidNet dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.▃▄▄▂▃▁▄█▃▃▃▅▂126033-288-7341209181210108-22NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▆▄█▁▇▄▇▁▆392313503179445331435188428NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings375NA473152424331435188428NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▆▄▇▁▆▅▇▂▇█▇▁▆▂█▃▄▂▆▂▅380286474153428333437190432505458176387211498233310180429220375NANANANA255466174195204442213287388170317354187232155
 us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.▇▄█▁█▃█▁▇▃▇▁▆407270415152412227431150389221402143339NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▆▅▇▂▇▅▇▃▇█▇▃▆▃█▃▅▃▇▃▆▁▇▃▆▄▇▂▃▃▇▃▄▆▂▅▅▃▃▂37529547315242433143518842850545717538820649723231017642821937082436212361234464172192207440214280386168314353186229153
 us-gaap:NetIncomeLoss dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.▇▄█▁█▃█▁▇▃▇▁▆406272414152412227431149389221401143339NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents,dei:LegalEntity us-gaap:RetainedEarnings,ed:ConsolidatedEdisonCompanyofNewYorkInc.406NA414152412227431149389NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▅▅█▇▆▁▁▁▁17183027210000NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
us-gaap:Assets ██▇▇▇▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▃▄▂▂▂▂▃▃▃▃▂▂▂▁▁▁591595807955940556025506653920495444906448900481114924649099483654825547316472704558045642449714475143977443084066740311404814064741964419224173641209396334004939701365353601936186NA34389NANA
 us-gaap:Assets dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.█▇▅▅▅▄▂▂▂▁47568465574480844475441224310841859415254126640451NANANA40856NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesAndStockholdersEquity ██▇▇▇▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▃▄▂▂▂▂▃▃▃▃▂▂▂▁▁▁591595807955940556025506653920495444906448900481114924649099483654825547316472704558045642449714475143977443084066740311404814064741964419224173641209396334004939701365353601936186NA34389NANA
 us-gaap:LiabilitiesAndStockholdersEquity dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.█▇▅▅▅▄▂▂▂▁47568465574480844475441224310841859415254126640451NANANA40856NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:StockholdersEquity ███▇▇▆▅▅▅▅▄▄▄▃▃▃▂▂▂▂▂▁▂▁▁▁1826118022179591770917369167261588715648156541541815102144901449814298142671395013193130521304012788127611257612707124551242612245NA118831188911869118421157911545116671146411444NA10593NANA
 us-gaap:StockholdersEquity dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.█▇▇▆▄▃▃▂▂▁14333141471407913868133191291012869126251266212439NANANA11829NANANA11415NANANA11188NANANANANANANANANANANANANANANANANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents,dei:LegalEntity us-gaap:AdditionalPaidInCapital,ed:ConsolidatedEdisonCompanyofNewYorkInc.███▇▃▂▂▁▁▁5694566956445619499447694744471946944649NANANA4347NANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents,dei:LegalEntity us-gaap:RetainedEarnings,ed:ConsolidatedEdisonCompanyofNewYorkInc.█▇▆▅▅▄▄▂▂▁9079891988748689876585818565834684098231NANANA7923NANANANANANANANANANANANANANANANANANANANANANANANANANA
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us-gaap:LongTermInvestments ██▇▇▇▇███▇▇▇▇▇▇▇▃▃▃▃▃▃▃▂▂▂▂▁▁▂▂▂▁▂▁▁2011206519831899183217662131205720122001197719611914192119311913865884874848814816740693547461444313351467462451440474426413NA402NANA
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us-gaap:OtherAssetsNoncurrent ▆▇▆▆▆▆▄▄▅▄▆▆▇▆▇▇▇▇▇███▁▁▁▁▁▁▁▁▁▁▁▁▁▁7687785371427251730165414674480450404973744576077771771283258399855987139119930195539811185193253225238227253216278252296267277309NA283NANA
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  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
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us-gaap:StockholdersEquity ███▇▇▆▅▅▅▅▄▄▄▃▃▃▂▂▂▂▂▁▂▁▁▁1826118022179591770917369167261588715648156541541815102144901449814298142671395013193130521304012788127611257612707124551242612245NA118831188911869118421157911545116671146411444NA10593NANA
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  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▇▇▇▁▇▇▇▆▇▇█▆█▄▆-968-898-1008-988-888-2524-1081-957-909-1131-869-866-837-1259-731-1868-1118NANANANANANANANA-764-683-549-663-656-762NA-490NANA-496NANA-460NA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▄▂▄▂█▂▃▄▄▁▄▂▅▁▆▂913688-131410-1082190-155298605719-531489-320762-6901560-287NANANANANANANANA50-25510748520-941NA209NANA312NANA286NA
 us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.█▇▃▆▃▆▂▆▇▆▁▇▂816593-124379-111490-371475596518-569623-332NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt █▅▁▆▅▆▂█▁▄▁▃▃▅▁█▂▅▁▂▁▅▁▁▅▁▁▂▄▁▁1600102801164825112526516400700050049782501547218909023801000008500021970000NA400NANANANANANANA
 us-gaap:ProceedsFromIssuanceOfLongTermDebt dei:LegalEntity ed:ConsolidatedEdisonCompanyofNewYorkInc.█▄▁▄▁▆▁16006000700011000NANA7000NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RepaymentsOfLongTermDebt ▁▆▁▇▁▇█▇▁▁▁▁▅▄▅▁▁▅▂▁▁▁▁▄▃▁▁▃▆▁▄3849345646116197006091053184083284015135510045020278200211975091302NA1NANA1NANA45NA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
us-gaap:RepaymentsOfLongTermDebt ▁▆▁▇▁▇█▇▁▁▁▁▅▄▅▁▁▅▂▁▁▁▁▄▃▁▁▃▆▁▄3849345646116197006091053184083284015135510045020278200211975091302NA1NANA1NANA45NA

Common Stock Shares Outstanding

Common Stock Shares Authorized

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value334333329323312311311309306306305300294294294293294294294294294294294294294294294293284283282276275
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value333332328322311310310307305305304299293292292292292292292292292292292292292292292292283282281275274
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value1.130.88999999999999971.420.461.311.04999999999999981.40.61.381.63999999999999971.480.571.270.68000000000000021.630.781.050.60000000000000011.460.751.260.27999999999999981.490.731.230.791.580.590.660.69999999999999971.50.730.951.310.571.071.240.650.81.220.55
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value1.120.89000000000000011.420.461.311.04999999999999981.390.61.371.63000000000000031.480.571.270.66000000000000011.620.771.050.58999999999999991.450.741.260.271.480.721.230.79999999999999981.580.590.650.69999999999999971.490.730.941.30.561.061.230.640.81.220.55
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

Income Loss From Continuing Operations Per Diluted Share

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value3157288033372604332828113298258233332961321126333228270734172794315627073443278836162828339029113789286734842818318429013438277130783629299333493707301734622845
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, dei:LegalEntity

us-gaap:OperatingSegments, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value28102543289922372941250829592292
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax89.088.386.985.988.489.289.788.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax89.088.386.985.988.489.289.788.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:ConsolidatedEdisonCompanyofNewYorkInc.100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ed:OrangeAndRocklandUtilitiesInc



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value221208230179257216246193
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.07.26.96.97.77.77.57.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.07.26.96.97.77.77.57.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:OrangeAndRocklandUtilitiesInc100.0100.0100.0100.0100.0100.0100.0100.0

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

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value17321865258217511714181426311771
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax54.964.877.467.251.564.579.868.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax54.964.877.467.251.564.579.868.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ElectricTransmission ed:ConsolidatedEdisonCompanyofNewYorkInc.100.0100.0100.0100.0100.0100.0100.0100.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value128139205140143139215146
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.14.86.15.44.34.96.55.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.14.86.15.44.34.96.55.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ElectricTransmission ed:OrangeAndRocklandUtilitiesInc100.0100.0100.0100.0100.0100.0100.0100.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value833524263400910536264428
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.418.27.915.427.319.18.016.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.418.27.915.427.319.18.016.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:GasTransmission ed:ConsolidatedEdisonCompanyofNewYorkInc.100.0100.0100.0100.0100.0100.0100.0100.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value93692539114773147
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.92.40.71.53.42.70.91.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.92.40.71.53.42.70.91.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:GasTransmission ed:OrangeAndRocklandUtilitiesInc100.0100.0100.0100.0100.0100.0100.0100.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value24515454863171586493
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.85.31.63.39.55.61.93.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.85.31.63.39.55.61.93.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:SteamPlant ed:ConsolidatedEdisonCompanyofNewYorkInc.100.0100.0100.0100.0100.0100.0100.0100.0

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

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value114110193171106566873132
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.63.85.86.63.22.02.12.84.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.63.85.86.63.22.02.12.84.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:Renewables ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value111814162330242317
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.60.40.60.71.10.70.90.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.60.40.60.71.10.70.90.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EnergyService ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ed:CleanEnergyBusinesses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value125128207187129869296149
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.46.27.23.93.12.83.74.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.46.27.23.93.12.83.74.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

ed:EngineeringProcurementAndConstruction, ed:Renewables, ed:CleanEnergyBusinesses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3534233989
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.20.10.20.10.10.10.32.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.20.10.20.10.10.10.32.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:EngineeringProcurementAndConstruction ed:Renewables ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value3234295133652744351429493328269633642961321126333228270734172794315627073443278836162828339029113789286734842818318429013438277130783629299333493707301734622845
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax102.4102.5100.8105.4105.6104.9100.9104.4100.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2854257328772331303925592899233828842520279922932856
Percentage of Revenues88.287.285.584.986.586.887.186.785.785.187.287.188.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax90.489.386.289.591.391.087.990.586.585.187.287.188.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.098.70.00.00.00.0

us-gaap:ConsolidationItems

ed:CorporateAndReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value01-10-1-1110-10-1-2-1-10-1
Percentage of Revenues0.00.0-0.00.0-0.0-0.00.00.00.0-0.00.0-0.0-0.1-0.0-0.00.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0-0.00.0-0.0-0.00.00.00.0-0.00.0-0.0-0.1-0.0-0.00.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:CorporateAndReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value32343365274435143328269633643211263332283417279431562707344327883616282833902911378928673484
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax102.4100.8105.4105.6100.9104.4100.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConsolidationItems, dei:LegalEntity

us-gaap:IntersegmentElimination, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-25-23-24-23-24-24-25-24
Percentage of Revenues-0.8-0.8-0.7-0.8-0.7-0.8-0.8-0.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.8-0.8-0.7-0.9-0.7-0.9-0.8-0.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value28542573287723313039255928992338
Percentage of Revenues88.287.285.584.986.586.887.186.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax90.489.386.289.591.391.087.990.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:ConsolidatedEdisonCompanyofNewYorkInc.101.6101.299.2104.2103.3102.098.0102.0

us-gaap:OperatingSegments, ed:OrangeAndRocklandUtilitiesInc



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value233215241179258200246198
Percentage of Revenues7.27.37.26.57.36.87.47.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.47.57.26.97.87.17.57.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:OrangeAndRocklandUtilitiesInc105.4103.4104.8100.0100.492.6100.0102.6

us-gaap:ConsolidationItems, us-gaap:ProductOrService

ed:CorporateAndReconcilingItems, us-gaap:ProductAndServiceOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.01000000.0-1000000.00.0-1000000.0-1000000.01000000.01000000.0
Percentage of Revenues0.00.0-0.00.0-0.0-0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0-0.00.0-0.0-0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:CorporateAndReconcilingItems us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.0

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

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value4430-22949851-6046
Percentage of Revenues1.41.0-0.73.42.81.7-1.81.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.0-0.73.62.91.8-1.81.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1271101-1605
Percentage of Revenues0.40.20.30.00.0-0.50.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.20.30.00.0-0.60.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther ed:OrangeAndRocklandUtilitiesInc0.00.00.00.00.00.00.00.0

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

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3823-38828350-6036
Percentage of Revenues1.20.8-1.13.02.41.7-1.81.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.20.8-1.13.12.51.8-1.81.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:ElectricTransmission ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value825-22-2-3-2
Percentage of Revenues0.20.10.1-0.10.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.10.1-0.10.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:ElectricTransmission ed:OrangeAndRocklandUtilitiesInc0.00.00.00.00.00.00.00.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1312811207
Percentage of Revenues0.00.10.40.30.30.10.00.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.10.40.30.30.10.00.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:GasTransmission ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value4562-1-1437
Percentage of Revenues0.10.20.20.1-0.0-0.50.10.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.20.20.1-0.0-0.50.10.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:GasTransmission ed:OrangeAndRocklandUtilitiesInc0.00.00.00.00.00.00.00.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value54444-103
Percentage of Revenues0.20.10.10.10.1-0.00.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.10.10.20.1-0.00.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther us-gaap:SteamPlant ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

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

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2133404688104896284
Percentage of Revenues0.61.11.21.72.53.52.72.32.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.71.11.21.82.63.72.72.42.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther ed:OtherServices ed:CleanEnergyBusinesses0.00.00.00.00.00.00.00.00.0

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

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2133404688104896284
Percentage of Revenues0.61.11.21.72.53.52.72.32.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.71.11.21.82.63.72.72.42.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ProductAndServiceOther ed:CleanEnergyBusinesses0.00.00.00.00.00.00.00.00.0

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

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value44454444
Percentage of Revenues0.10.10.10.20.10.10.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.20.10.10.10.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:ElectricTransmission ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value21222122
Percentage of Revenues0.10.00.10.10.10.00.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.10.10.10.00.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:GasTransmission ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1918181618191918
Percentage of Revenues0.60.60.50.60.50.60.60.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.60.50.60.50.70.60.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:SteamPlant ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value17701888254418331797186425711807
Percentage of Revenues54.764.075.666.851.163.277.367.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax56.165.676.270.454.066.378.070.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ElectricTransmission ed:ConsolidatedEdisonCompanyofNewYorkInc.102.2101.298.5104.7104.8102.897.7102.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value136141210138145137212144
Percentage of Revenues4.24.86.25.04.14.66.45.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.34.96.35.34.44.96.45.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:ElectricTransmission ed:OrangeAndRocklandUtilitiesInc106.2101.4102.498.6101.498.698.698.6

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value834527275408921538264435
Percentage of Revenues25.817.98.214.926.218.27.916.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.418.38.215.727.719.18.016.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:GasTransmission ed:ConsolidatedEdisonCompanyofNewYorkInc.100.1100.6104.6102.0101.2100.4100.0101.6

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value97743141113633454
Percentage of Revenues3.02.50.91.53.22.11.02.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.12.60.91.63.42.21.02.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:GasTransmission ed:OrangeAndRocklandUtilitiesInc104.3107.2124.0105.199.181.8109.7114.9

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value25015858903211576496
Percentage of Revenues7.75.41.73.39.15.31.93.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.95.51.73.59.65.61.93.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:SteamPlant ed:ConsolidatedEdisonCompanyofNewYorkInc.102.0102.6107.4104.7101.399.4100.0103.2

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

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2133404688104896284
Percentage of Revenues0.61.11.21.72.53.52.72.32.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.71.11.21.82.63.72.72.42.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:OtherServices ed:CleanEnergyBusinesses0.00.00.00.00.00.00.00.00.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value114110193171106566873132
Percentage of Revenues3.53.75.76.23.01.92.02.73.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.63.85.86.63.22.02.12.84.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:Renewables ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value111814162330242317
Percentage of Revenues0.30.60.40.60.71.00.70.90.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.60.40.60.71.10.70.90.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EnergyService ed:CleanEnergyBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ed:CleanEnergyBusinesses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value14616124723321719018115823323417714613693350338310
Percentage of Revenues4.55.57.38.56.26.45.45.96.97.95.55.54.23.410.212.19.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.65.67.48.96.56.85.56.17.07.95.55.54.23.410.212.19.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:CleanEnergyBusinesses116.8125.8119.3124.6168.2220.9196.7164.6156.40.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ed:ConEdisonTransmission



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.00.00.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ed:ConEdisonTransmission100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ProductOrService

ed:NonUtilityProductsAndServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value147163248234218190183160234235178145
Percentage of Revenues4.55.57.48.56.26.45.55.97.07.95.55.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.75.77.49.06.66.85.56.27.07.95.55.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:NonUtilityProductsAndServices0.00.00.00.00.00.00.00.00.00.00.00.0

ed:Steam



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value250158589032115764963141476288
Percentage of Revenues7.75.41.73.39.15.31.93.69.35.01.93.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.95.51.73.59.65.61.93.79.45.01.93.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:Steam0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Electricity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value190620292753197119412001278319511877203926751965
Percentage of Revenues58.968.881.871.855.267.983.672.455.868.983.374.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax60.470.582.575.758.371.284.475.656.368.983.374.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OilAndGasPurchased



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value9316013064491034601298489939540296435
Percentage of Revenues28.820.49.116.429.420.49.018.127.918.29.216.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.520.99.217.231.121.49.018.928.218.29.216.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGasPurchased0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProductAndServiceOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value7771281401861383011431
Percentage of Revenues2.42.40.85.15.34.70.94.20.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.42.50.85.45.64.90.94.40.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther0.00.00.00.00.00.00.00.00.0

us-gaap:ProductOrService, dei:LegalEntity

ed:Steam, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value25015858903211576496
Percentage of Revenues7.75.41.73.39.15.31.93.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.95.51.73.59.65.61.93.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:Steam ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

us-gaap:Electricity, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value17701888254418331797186425711807
Percentage of Revenues54.764.075.666.851.163.277.367.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax56.165.676.270.454.066.378.070.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

us-gaap:OilAndGasPurchased, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value834527275408921538264435
Percentage of Revenues25.817.98.214.926.218.27.916.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.418.38.215.727.719.18.016.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGasPurchased ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

Cost Of Goods And Services Sold

us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServicesSold

srt:Fuel



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value78443126106623938
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.51.50.91.03.22.21.21.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Fuel0.00.00.00.00.00.00.00.0

us-gaap:ElectricityPurchased



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value308343483352368357545388353348460408
Percentage of CostOfGoodsAndServicesSold394.9779.51558.11353.8347.2575.81397.41021.10.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.811.914.513.511.112.716.515.010.611.814.315.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ElectricityPurchased0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OilAndGasOperationAndMaintenance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value700753847781794763797756836856811732
Percentage of CostOfGoodsAndServicesSold897.41711.42732.33003.8749.11230.62043.61989.50.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax22.226.125.430.023.927.124.229.325.128.925.327.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGasOperationAndMaintenance0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OilAndGasPurchased



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value23220998131442305164194378224115149
Percentage of CostOfGoodsAndServicesSold297.4475.0316.1503.8417.0491.9420.5510.50.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.37.32.95.013.310.95.07.511.37.63.65.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGasPurchased0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProductOrService, dei:LegalEntity

srt:Fuel, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value78443126106623938
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.51.50.91.03.22.21.21.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Fuel ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

us-gaap:ElectricityPurchased, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value273299423313322316472343
Percentage of CostOfGoodsAndServicesSold350.0679.51364.51203.8303.8509.71210.3902.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.610.412.712.09.711.214.313.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ElectricityPurchased ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

us-gaap:OilAndGasOperationAndMaintenance, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value569613712651659629666629
Percentage of CostOfGoodsAndServicesSold729.51393.22296.82503.8621.71014.51707.71655.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.021.321.325.019.822.420.224.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGasOperationAndMaintenance ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

us-gaap:OilAndGasPurchased, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value195161527631718666118
Percentage of CostOfGoodsAndServicesSold250.0365.9167.7292.3299.1300.0169.2310.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.25.61.62.99.56.62.04.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGasPurchased ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

Cost Of Services

Operating Expenses

us-gaap:OperatingExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value2426238624982286272824232502227026092417233822112457222925812279251423082613231628902578257125013104239026292432265824482587229625172873259527233002258829702473
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.882.874.987.882.086.275.987.978.381.672.884.076.182.375.581.679.785.375.983.179.991.275.885.981.983.475.586.383.584.475.282.981.879.286.781.381.085.885.886.9

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2112205021541955231320552135195621792114196318702115
Percentage of OperatingExpenses87.185.986.285.584.884.885.386.283.587.584.084.686.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax66.971.264.575.169.573.164.775.865.471.461.171.065.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.074.60.00.00.00.0

Research And Development Expense

Operating Income Loss

us-gaap:OperatingIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value808565867458786657826426755544873423771478940515642399830472726250819455685477855386526453851475561756398626705429492372
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.619.626.017.623.623.425.016.522.718.427.216.123.917.727.518.420.314.724.116.920.18.824.215.618.116.624.513.716.515.624.817.118.220.813.318.719.014.214.213.1

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value742523723376726504764382705406836423741
Percentage of OperatingIncomeLoss91.892.683.482.192.476.792.589.793.474.695.8100.096.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.518.221.714.421.817.923.214.821.213.726.016.123.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.024.10.00.00.00.0

ed:OrangeAndRocklandUtilitiesInc



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value554613544223444519534813533642-245264320391939134723441738
Percentage of OperatingIncomeLoss6.85.32.86.95.15.45.85.24.56.95.12.58.39.05.1-0.46.210.45.34.45.74.04.63.48.95.15.23.66.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.71.40.51.61.30.91.31.40.71.61.40.51.71.31.2-0.11.20.91.30.71.00.71.10.51.50.81.30.61.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:OrangeAndRocklandUtilitiesInc0.00.00.00.00.00.016.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConsolidationItems

ed:CorporateAndReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1-2-1-1-3-2-3-2-211112220
Percentage of OperatingIncomeLoss-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-0.0-0.1-0.0-0.0-0.1-0.1-0.1-0.1-0.10.00.00.00.00.10.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:CorporateAndReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PublicUtility, dei:LegalEntity

us-gaap:ElectricTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value282803314257850318
Percentage of OperatingIncomeLoss34.992.668.632.7102.974.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.924.112.17.725.812.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ElectricTransmission ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.0

us-gaap:ElectricTransmission, ed:OrangeAndRocklandUtilitiesInc



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value145616165218
Percentage of OperatingIncomeLoss1.76.53.52.06.34.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.41.70.60.51.60.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ElectricTransmission ed:OrangeAndRocklandUtilitiesInc0.00.00.00.00.00.0

us-gaap:GasTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value369-2494344-3482
Percentage of OperatingIncomeLoss45.7-2.820.543.8-4.119.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.7-0.73.610.3-1.03.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:GasTransmission ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.0

us-gaap:GasTransmission, ed:OrangeAndRocklandUtilitiesInc



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value41-10-338-105
Percentage of OperatingIncomeLoss5.1-1.2-0.74.8-1.21.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.3-0.3-0.11.1-0.30.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:GasTransmission ed:OrangeAndRocklandUtilitiesInc0.00.00.00.00.00.0

us-gaap:SteamPlant, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value91-56-32125-52-18
Percentage of OperatingIncomeLoss11.3-6.5-7.015.9-6.3-4.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.9-1.7-1.23.8-1.6-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SteamPlant ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.0

us-gaap:StatementBusinessSegments

ed:CleanEnergyBusinesses



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value14100721125249291815125109-51
Percentage of OperatingIncomeLoss1.711.515.71.43.05.61.23.34.31.913.321.2-7.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.43.02.80.30.80.90.30.90.70.53.73.9-1.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:CleanEnergyBusinesses0.00.00.00.00.00.06.00.00.00.00.00.00.0

ed:ConEdisonTransmission



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value-2-1-2-2-2-1-1-2-2-3-1-10
Percentage of OperatingIncomeLoss-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-0.1-0.0-0.1-0.1-0.1-0.0-0.0-0.1-0.1-0.1-0.0-0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConEdisonTransmission0.00.00.00.00.00.0-100.00.00.00.00.00.00.0

Interest Expense

Interest And Debt Expense

us-gaap:InterestAndDebtExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value322219262263247222205197195184185180181179178170169167162162161156150150136144146151279149152153150144152152157149149155
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.27.67.910.17.47.96.27.65.96.25.86.85.66.65.26.15.46.24.75.84.55.54.45.23.65.04.25.48.85.14.45.54.94.05.14.54.24.94.35.4

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value180181182183181175167166160157154153
Percentage of InterestAndDebtExpense55.969.169.274.181.585.484.885.187.084.985.684.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.75.47.05.56.45.36.55.05.44.95.84.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.05.70.00.00.00.0

Interest Expense Debt

us-gaap:InterestExpenseDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value224228220219221204195190190187183179178174174167163163157156156149145147146145145145143146146149145145146147152148150151
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.17.96.68.46.67.35.97.45.76.35.76.85.56.45.16.05.26.04.65.64.35.34.35.03.95.14.25.14.55.04.25.44.74.04.94.44.14.94.35.3

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value172171168165169170167162163159155151150
Percentage of InterestExpenseDebt76.875.076.475.376.583.385.685.385.885.084.784.484.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.45.95.06.35.16.05.16.34.95.44.85.74.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.05.60.00.00.00.0

Other Nonoperating Income Expense

Income Loss From Continuing Operations

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value-392014314-33-11-3-151839342534911119104-326910452222-23-1591012816
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.20.70.40.10.4-1.2-0.3-0.1-0.50.61.21.30.80.11.40.40.00.00.30.40.1-0.10.80.30.30.10.10.10.10.10.1-0.10.1-0.00.20.30.30.40.20.6

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-61-4-9-15-7-44-33-35-31109-36-35-31
Percentage of NonoperatingIncomeExpense156.4-20.0-64.3-500.0-50.0133.3300.01166.7206.7605.6-92.3-102.9-124.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.9-0.1-0.3-0.6-0.2-1.6-1.0-1.4-0.93.7-1.1-1.3-1.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0-1.10.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value5553116191087117538117-127270102227963141241645724910119992591021981032506557992611061342258316920510612280
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.71.83.50.73.22.55.31.53.5-4.38.43.97.03.59.24.45.22.17.23.65.50.37.63.55.23.67.22.31.83.47.63.84.46.22.85.05.53.53.52.8

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value956411927124521253111913424291218
Percentage of IncomeTaxExpenseBenefit172.7120.8102.6142.1114.873.271.481.6101.7-105.589.689.296.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.02.23.61.03.71.83.81.23.64.57.53.56.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.04.10.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value22-13-1831111-13514-39-36-21-143-292188-197-2117102416
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.1-0.4-0.70.10.00.00.4-0.40.20.00.2-1.2-1.3-0.10.0-4.5-1.10.16.7-5.4-0.13.53.511.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value126033-288-7341209181210108-22
Percentage of IncomeTaxesPaidNet600.03000.0-253.8155.6266.7-7300.04100.01900.0-138.5240.01000.02700.056.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.42.11.0-1.10.2-2.61.28.10.50.40.34.1-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.60.00.00.00.0

Profit Loss

us-gaap:ProfitLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value392313503179445331435188428
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.410.915.16.913.411.813.27.312.8

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest



Period End2020-03-312019-09-302019-06-302019-03-31
Value17302721
Percentage of ProfitLoss4.36.015.14.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.91.00.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value375473152424331435188428
Percentage of ProfitLoss95.794.084.995.3100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.914.25.812.711.813.27.312.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value380286474153428333437190432505458176387211498233310180429220375255466174195204442213287388170317354187232155
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.09.914.25.912.911.813.37.413.017.114.36.712.07.814.68.39.86.612.57.910.48.913.46.26.17.012.97.79.310.75.79.59.56.26.75.4

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value407270415152412227431150389221402143339
Percentage of ComprehensiveIncomeNetOfTax107.194.487.699.396.368.298.678.990.043.887.881.287.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.99.412.45.812.48.113.15.811.77.512.55.410.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.013.30.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value37529547315242433143518842850545717538820649723231017642821937082436212361234464172192207440214280386168314353186229153
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.910.214.25.812.711.813.27.312.817.114.26.612.07.614.58.39.86.512.47.910.22.912.97.39.58.213.36.16.07.112.87.79.110.65.69.49.56.26.65.4

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value406272414152412227431149389221401143339
Percentage of NetIncomeLoss108.392.287.5100.097.268.699.179.390.943.887.781.787.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.99.412.45.812.48.113.15.811.77.512.55.410.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.013.30.00.00.00.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:RetainedEarnings, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value406414152412227431149389
Percentage of NetIncomeLoss108.387.5100.097.268.699.179.390.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.912.45.812.48.113.15.811.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value17183027210000
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.60.91.00.60.00.00.00.0

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value59159580795594055602550665392049544490644890048111492464909948365482554731647270455804564244971447514397744308406674031140481406474196441922417364120939633400493970139214365353601936186361463438933873
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value4756846557448084447544122431084185941525412664045140856
Percentage of Assets80.480.280.180.080.179.984.584.684.484.184.7
Percentage of Assets80.480.280.180.080.179.984.584.684.484.184.7
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value59159580795594055602550665392049544490644890048111492464909948365482554731647270455804564244971447514397744308406674031140481406474196441922417364120939633400493970139214365353601936186361463438933873
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value4756846557448084447544122431084185941525412664045140856
Percentage of LiabilitiesAndStockholdersEquity80.480.280.180.080.179.984.584.684.484.184.7
Percentage of Assets80.480.280.180.080.179.984.584.684.484.184.7
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value182611802217959177091736916726158871564815654154181510214490144981429814267139501319313052130401278812761125761270712455124261224511883118891186911842115791154511649116671146411444112741059310462
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.931.032.131.831.531.032.131.932.032.030.729.530.029.630.229.528.928.629.028.629.028.431.230.930.730.128.328.528.829.928.929.129.731.931.831.631.230.830.9

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value14333141471407913868133191291012869126251266212439118291141511188
Percentage of StockholdersEquity78.578.578.478.376.777.281.080.780.980.782.787.589.0
Percentage of Assets24.224.425.224.924.223.926.025.725.925.924.525.025.3
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.30.130.431.431.230.229.930.730.430.730.829.00.00.0

us-gaap:StatementEquityComponents, dei:LegalEntity

ed:OtherChangesStockholdersEquity, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value-62-62-62-62-62-62-62-62-62-62-61
Percentage of StockholdersEquity-0.3-0.3-0.3-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.4
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
Percentage of Assets ed:OtherChangesStockholdersEquity ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value-5-6-4-5-5-5-5-5-6-6-7
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
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
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value56945669564456194994476947444719469446494347
Percentage of StockholdersEquity31.231.531.431.728.828.529.930.230.030.230.4
Percentage of Assets9.69.810.110.19.18.89.69.69.69.79.0
Percentage of Assets us-gaap:AdditionalPaidInCapital ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value90798919887486898765858185658346840982317923
Percentage of StockholdersEquity49.749.549.449.150.551.353.953.353.753.455.4
Percentage of Assets15.315.415.915.615.915.917.317.017.217.116.4
Percentage of Assets us-gaap:RetainedEarnings ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value5026427235813707378138643356343637733537309632803017340631543499318538363505367933983854351934573484389137044103393434513240410239043638345832093590350731583243
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.57.46.46.76.97.26.87.07.77.46.36.76.27.16.77.47.08.47.88.27.78.78.78.68.69.68.89.89.48.48.210.29.89.39.58.99.99.79.29.6

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value43063543300531433320335729703089323729092880
Percentage of AssetsCurrent85.782.983.984.887.886.988.589.985.882.284.6
Percentage of Assets7.36.15.45.76.06.26.06.36.66.06.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.9.17.66.77.17.57.87.17.47.87.27.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-06-302008-12-31
Value13959817883140689519986665179769816677761508626194491709117699205774102674747471323946913817696483984925163381981788726031174
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.41.70.11.50.71.70.41.81.31.70.11.70.11.60.31.80.12.10.21.60.31.60.51.90.31.70.21.80.31.00.23.41.91.71.11.41.40.90.00.50.00.80.00.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value130393315786352818178295747301776717702843645
Percentage of CashAndCashEquivalentsAtCarryingValue93.495.119.294.686.791.48.595.788.291.624.694.025.490.589.392.3
Percentage of Assets2.21.60.01.40.61.50.01.71.21.50.01.60.01.51.81.5
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.2.72.00.01.80.81.90.02.01.41.80.00.00.01.70.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value13181236125410991309126713501097125011031111984117511061157951108510521194108414441201128012211566125112731211135712221319103410691123117711011178117310751047
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.12.22.02.42.32.72.22.62.32.32.02.42.32.42.02.42.32.72.43.32.73.13.03.93.13.02.93.33.03.32.62.72.93.23.13.33.23.13.1

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1226115311601016119811631228994113510091032
Percentage of AccountsReceivableNetCurrent93.093.392.592.491.591.891.090.690.891.593.3
Percentage of Assets2.12.02.11.82.22.22.52.02.32.12.1
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.2.62.52.62.32.72.72.92.42.82.52.5

Inventory Raw Materials And Supplies

Other Assets Current

us-gaap:OtherAssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value1662001511201771229112386189199174122205206269157191178223263278338224265235179164161232207215205159153176202171152174
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.20.30.20.20.30.20.40.40.40.30.40.40.60.30.40.40.50.60.60.80.60.70.60.40.40.40.60.50.50.50.40.40.50.60.50.40.5

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1001278167129695985578495
Percentage of OtherAssetsCurrent60.263.553.655.872.956.664.869.166.344.446.3
Percentage of Assets0.20.20.10.10.20.10.10.20.10.20.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.20.30.20.20.30.20.10.20.10.20.2

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value423391357329296275248233217201185170155140122114105959085959187849790847873686664615957555351
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.60.60.50.50.50.50.40.40.40.30.30.30.30.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.10.1

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value44435438894323442745421524174939383387673807537600367283625135663352163390633459329713220931473309233021229827292392875428682284362795527542272832693926324257342535325093246982441424068238632309722464
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets75.175.677.376.976.577.479.579.077.978.274.673.873.773.071.770.872.370.670.069.168.767.371.971.370.970.066.665.765.465.466.464.363.964.067.667.866.566.067.266.3

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value3783637414368853634835817353743482934265336383320931119
Percentage of PropertyPlantAndEquipmentNet85.185.285.385.085.084.788.488.488.388.388.4
Percentage of Assets64.064.465.965.465.065.670.369.868.869.064.5
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.79.580.482.381.781.282.183.282.581.582.176.2

us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

ed:PGEProject



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value802819827853885
Percentage of PropertyPlantAndEquipmentNet1.81.91.92.02.1
Percentage of Assets1.41.41.51.51.6
Percentage of Assets ed:PGEProject0.00.00.00.00.0

us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject, us-gaap:Collateral

ed:PGEProject, us-gaap:CollateralPledged



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value274282287288292
Percentage of PropertyPlantAndEquipmentNet0.60.60.70.70.7
Percentage of Assets0.50.50.50.50.5
Percentage of Assets ed:PGEProject us-gaap:CollateralPledged0.00.00.00.00.0

Long Term Investments

us-gaap:LongTermInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value2011206519831899183217662131205720122001197719611914192119311913865884874848814816740693547461444313351467462451440455474426413403402385
Percentage of LongTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.43.63.53.43.33.34.34.24.14.24.04.04.04.04.14.01.91.91.91.91.91.81.81.71.41.11.10.70.81.11.21.11.11.21.31.21.11.11.21.1

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value417461436422407385415406388383315
Percentage of LongTermInvestments20.722.322.022.222.221.819.519.719.319.116.4
Percentage of Assets0.70.80.80.80.70.70.80.80.80.80.7
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.91.01.00.90.90.91.01.00.90.90.8

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value446446446440440440439428428428428428428428429429429429429429429429429429429429429429429429429429429429429429429429420416
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.80.80.80.80.80.90.90.90.90.90.90.90.90.90.90.90.91.01.01.01.01.11.11.11.11.01.01.01.01.11.11.11.11.21.21.21.21.21.2

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value15321557158016051630165413212712913111411612212402223333334444223333333334
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.62.72.82.93.03.10.30.30.30.30.20.20.30.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

ed:PGEProject



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value10391057107510901125
Percentage of IntangibleAssetsNetExcludingGoodwill67.867.968.067.968.0
Percentage of Assets1.81.81.92.02.1
Percentage of Assets ed:PGEProject0.00.00.00.00.0

Finite Lived Intangible Assets Net

Deferred Tax Assets Liabilities Net

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value7687785371427251730165414674480450404973744576077771771283258399855987139119930195539811185193253225238227253216278252296259267277309298283258
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.013.512.813.013.312.19.49.810.310.315.115.516.116.017.617.818.819.120.320.821.722.10.50.50.60.60.60.50.60.50.70.60.70.70.70.80.90.80.80.8

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value50095139448245624578399236453765400339506542
Percentage of OtherAssetsNoncurrent65.265.462.862.962.761.078.078.479.479.484.8
Percentage of Assets8.58.88.08.28.37.47.47.78.28.213.6
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.10.511.010.010.310.49.38.79.19.79.816.0

Liabilities Current

us-gaap:LiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value6311628762195969634862075401545656514902391543293441384335913903443647204429393534073781387338393576473043734504424339453724438038402987295924732676236626752952
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.710.811.110.711.511.510.911.111.610.27.98.87.18.07.68.39.710.39.88.87.78.59.59.58.811.610.410.710.29.69.410.99.77.68.16.97.46.57.88.7

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value35034131381336084054420045834636471139382989
Percentage of LiabilitiesCurrent55.565.761.360.463.967.784.985.083.480.377.8
Percentage of Assets5.97.16.86.57.47.89.39.49.68.26.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.7.48.98.58.19.29.710.911.211.49.77.3

Notes Payable Current

us-gaap:NotesPayableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-302010-06-30
Value12081692130011611435174113528691389577356103683610546017081199152911601245519800145114001021539340800153
Percentage of NotesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.02.92.32.12.63.22.71.82.81.20.72.11.72.21.31.52.63.32.62.81.21.83.63.32.41.30.92.00.4

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value5971137930849108511921004550913150600
Percentage of NotesPayableCurrent49.467.271.573.175.668.574.363.365.726.056.9
Percentage of Assets1.02.01.71.52.02.22.01.11.90.31.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.1.32.42.11.92.52.82.41.32.20.41.5

Long Term Debt Current

us-gaap:LongTermDebtCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value20931446191419722029650112818151291129868763733393467467397397614604965602104528548548348340570693012311030530305555305731
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.52.53.43.53.71.22.33.72.62.71.41.30.10.10.71.61.61.61.71.01.11.30.50.10.71.21.21.21.01.72.33.12.61.40.80.00.00.00.92.2

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value35035035035047547510751711120012000
Percentage of LongTermDebtCurrent16.724.218.317.723.473.195.394.393.092.40.0
Percentage of Assets0.60.60.60.60.90.92.23.52.52.50.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.70.80.80.81.11.12.64.12.93.00.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value101511641082994101011871173113012361286105797396311471113969909100810928459371019972967107910179259971065121596881384496110621033967115110941173
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.72.01.91.81.82.22.42.32.52.72.12.02.02.42.42.02.02.22.41.92.12.32.42.42.72.52.22.42.62.92.42.02.12.52.92.92.73.23.23.5

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value84895688383587097795392210151057876
Percentage of AccountsPayableCurrent83.582.181.684.086.182.381.281.682.182.276.4
Percentage of Assets1.41.61.61.51.61.81.91.92.12.21.8
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.1.82.12.01.92.02.32.32.22.52.62.1

Taxes Payable Current

us-gaap:TaxesPayableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value31763547436148454710843423864414651625352807248699847637932214416210815422918816615670904451
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.20.10.10.10.10.10.10.10.10.10.10.20.20.10.20.21.20.90.80.30.40.30.40.60.50.50.40.20.20.10.2

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value29713338385539363410250
Percentage of TaxesPayableCurrent93.593.494.380.988.490.281.280.072.394.478.1
Percentage of Assets0.00.10.10.10.10.10.10.10.10.20.1
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.10.20.10.10.10.10.10.10.10.30.1

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value285371341327264363295272262386358367216297638594529525463489473508418371404478491490483542489461405468460622457449397362
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.60.60.50.70.60.60.50.80.70.70.40.61.31.31.21.21.01.11.11.11.00.91.01.21.21.21.21.31.21.21.01.21.31.71.31.21.21.1

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value224280269256201267234215183245242
Percentage of OtherLiabilitiesCurrent78.675.578.978.376.173.679.379.069.863.581.5
Percentage of Assets0.40.50.50.50.40.50.50.40.40.50.5
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.0.50.60.60.60.50.60.60.50.40.60.6

Liabilities Noncurrent

Long Term Debt

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value19423185271753717496169331749515480152251473014731146511470314829147351374713747122221200611521119251169411631109851108411338104891049310494105541006298399840100411014310369106691067010671105529854
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets32.831.931.331.530.832.431.231.030.130.629.829.930.730.529.129.126.826.325.626.626.626.327.027.528.025.825.025.025.324.424.824.625.325.928.429.629.529.530.729.1

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1619414614140241402313678136761258712582120661206512073
Percentage of LongTermDebtNoncurrent83.478.980.080.180.878.281.382.681.981.981.9
Percentage of Assets27.425.225.125.224.825.425.425.624.725.125.0
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.34.031.431.331.531.031.730.130.329.229.829.6

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value1329151681011201231122880495911921443144316521836184721972423259929113068342036293914110612911502172738164333443846784039438546054835260026662659328730123363
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.61.42.02.22.31.62.02.43.02.93.43.83.84.65.15.76.46.87.68.38.82.73.23.74.29.110.310.611.410.210.911.612.37.17.47.39.18.89.9

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1080124157785896995254766589911401544
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent81.381.971.276.678.777.568.069.375.479.083.6
Percentage of Assets1.82.11.01.51.81.81.11.41.82.43.2
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.2.32.71.31.92.22.21.31.62.22.83.8

Minority Interest

us-gaap:MinorityInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value206191175156132113117778888888999999
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.30.20.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:BusinessAcquisition, dei:LegalEntity

ed:CopperMountainMesquiteSolar, ed:TaxEquityInvestors



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value1371261159971
Percentage of MinorityInterest66.566.065.763.562.8
Percentage of Assets0.20.20.20.20.1
Percentage of Assets ed:CopperMountainMesquiteSolar ed:TaxEquityInvestors0.00.00.00.00.0

ed:GreatValleySolar, ed:TaxEquityInvestors



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value6662574833
Percentage of MinorityInterest32.032.532.630.829.2
Percentage of Assets0.10.10.10.10.1
Percentage of Assets ed:GreatValleySolar ed:TaxEquityInvestors0.00.00.00.00.0

Other Liabilities Noncurrent

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value182611802217959177091736916726158871564815654154181510214490144981429814267139501319313052130401278812761125761270712455124261224511883118891186911842115791154511649116671146411444112741059310462
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.931.032.131.831.531.032.131.932.032.030.729.530.029.630.229.528.928.629.028.629.028.431.230.930.730.128.328.528.829.928.929.129.731.931.831.631.230.830.9

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value14333141471407913868133191291012869126251266212439118291141511188
Percentage of StockholdersEquity78.578.578.478.376.777.281.080.780.980.782.787.589.0
Percentage of Assets24.224.425.224.924.223.926.025.725.925.924.525.025.3
Percentage of Assets ed:ConsolidatedEdisonCompanyofNewYorkInc.30.130.431.431.230.229.930.730.430.730.829.00.00.0

us-gaap:StatementEquityComponents, dei:LegalEntity

ed:OtherChangesStockholdersEquity, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value-62-62-62-62-62-62-62-62-62-62-61
Percentage of StockholdersEquity-0.3-0.3-0.3-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.4
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
Percentage of Assets ed:OtherChangesStockholdersEquity ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value-5-6-4-5-5-5-5-5-6-6-7
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
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
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value56945669564456194994476947444719469446494347
Percentage of StockholdersEquity31.231.531.431.728.828.529.930.230.030.230.4
Percentage of Assets9.69.810.110.19.18.89.69.69.69.79.0
Percentage of Assets us-gaap:AdditionalPaidInCapital ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value90798919887486898765858185658346840982317923
Percentage of StockholdersEquity49.749.549.449.150.551.353.953.353.753.455.4
Percentage of Assets15.315.415.915.615.915.917.317.017.217.116.4
Percentage of Assets us-gaap:RetainedEarnings ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.00.00.00.0

Retained Earnings Accumulated Deficit

Accumulated Other Comprehensive Income Loss Net Of Tax

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value412117442210744641095560897143114065311264481123705110752413142651057-849613914023621
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.140.812.641.213.939.017.034.74.338.520.342.813.941.520.639.616.645.87.637.5-2.633.111.413.110.80.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value34010121998963951119430599561076556854380
Percentage of NetCashProvidedByUsedInOperatingActivities82.586.247.283.485.1102.276.866.839.294.485.175.884.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.835.16.034.411.939.813.023.21.736.317.332.411.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.01.90.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value-968-898-1008-988-888-2524-1081-957-909-1131-869-866-837-1259-731-1868-1118-764-683-549-663-656-762-490-496-460
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-30.7-31.2-30.2-37.9-26.7-89.8-32.8-37.1-27.3-38.2-27.1-32.9-25.9-46.5-21.4-66.9-35.4-26.6-19.6-19.5-20.8-22.6-22.2-15.9-14.8-13.3

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-786-687-846-841-750-808-871-819-808-879-739-727-733
Percentage of NetCashProvidedByUsedInInvestingActivities81.276.583.985.184.532.080.685.688.977.785.083.987.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-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.0.00.00.00.00.00.00.00.0-27.70.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value913688-131410-1082190-155298605719-531489-320762-6901560-28750-25510748520-941209312286
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.923.9-3.915.7-3.277.9-4.711.518.224.3-16.518.6-9.928.1-20.255.8-9.11.7-7.33.815.20.7-27.46.89.38.3

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value816593-124379-111490-371475596518-569623-332
Percentage of NetCashProvidedByUsedInFinancingActivities89.486.294.792.4102.822.4239.4159.498.572.0107.2127.4103.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.820.6-3.714.6-3.317.4-11.218.417.917.5-17.723.7-10.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.020.40.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value412117442210744641095560897143114065311264481123705110752413142651057-849613914023621
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.140.812.641.213.939.017.034.74.338.520.342.813.941.520.639.616.645.87.637.5-2.633.111.413.110.80.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value34010121998963951119430599561076556854380
Percentage of NetCashProvidedByUsedInOperatingActivities82.586.247.283.485.1102.276.866.839.294.485.175.884.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.835.16.034.411.939.813.023.21.736.317.332.411.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.01.90.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value37529547315242433143518842850545717538820649723231017642821937082436212361234464172192207440214280386168314353186229153
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.910.214.25.812.711.813.27.312.817.114.26.612.07.614.58.39.86.512.47.910.22.912.97.39.58.213.36.16.07.112.87.79.110.65.69.49.56.26.65.4

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value406272414152412227431149389221401143339
Percentage of NetIncomeLoss108.392.287.5100.097.268.699.179.390.943.887.781.787.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.99.412.45.812.48.113.15.811.77.512.55.410.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.013.30.00.00.00.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:RetainedEarnings, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value406414152412227431149389
Percentage of NetIncomeLoss108.387.5100.097.268.699.179.390.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.912.45.812.48.113.15.811.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value392313503179445331435188428
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.410.915.16.913.411.813.27.312.8

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest



Period End2020-03-312019-09-302019-06-302019-03-31
Value17302721
Percentage of ProfitLoss4.36.015.14.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.91.00.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value375473152424331435188428
Percentage of ProfitLoss95.794.084.995.3100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.914.25.812.711.813.27.312.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.0

Depreciation Depletion And Amortization

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value-26-61417-31162017-33-3-2044-26214-21-81016-8-40292120-60-54751-60-2518-31-103-52
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-20-287-24141314-24-11424-20
Percentage of IncreaseDecreaseInInventories76.933.357.141.277.487.565.082.472.733.3-70.054.576.9

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value-968-898-1008-988-888-2524-1081-957-909-1131-869-866-837-1259-731-1868-1118-764-683-549-663-656-762-490-496-460
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-30.7-31.2-30.2-37.9-26.7-89.8-32.8-37.1-27.3-38.2-27.1-32.9-25.9-46.5-21.4-66.9-35.4-26.6-19.6-19.5-20.8-22.6-22.2-15.9-14.8-13.3

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-786-687-846-841-750-808-871-819-808-879-739-727-733
Percentage of NetCashProvidedByUsedInInvestingActivities81.276.583.985.184.532.080.685.688.977.785.083.987.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-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.0.00.00.00.00.00.00.00.0-27.70.00.00.00.0

Payments To Acquire Property Plant And Equipment

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value913688-131410-1082190-155298605719-531489-320762-6901560-28750-25510748520-941209312286
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.923.9-3.915.7-3.277.9-4.711.518.224.3-16.518.6-9.928.1-20.255.8-9.11.7-7.33.815.20.7-27.46.89.38.3

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value816593-124379-111490-371475596518-569623-332
Percentage of NetCashProvidedByUsedInFinancingActivities89.486.294.792.4102.822.4239.4159.498.572.0107.2127.4103.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.820.6-3.714.6-3.317.4-11.218.417.917.5-17.723.7-10.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ed:ConsolidatedEdisonCompanyofNewYorkInc.0.00.00.00.00.00.00.00.020.40.00.00.00.0

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-31
Value1600102801164825112526516400700050049782501547218909023801000008500021970000400
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.00.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.00.00.0100.00.00.0100.0100.00.00.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-30
Value160060007000110007000
Percentage of ProceedsFromIssuanceOfLongTermDebt100.058.40.060.10.097.80.0100.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value38493456461161970060910531840832840151355100450202782002119750913021145
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Payments For Repurchase Of Common Stock

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value38493456461161970060910531840832840151355100450202782002119750913021145
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Debt Instrument Interest Rate Stated Percentage

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.12-0.019999999999999990.20.110.2-0.0099999999999999810.280.170.21-0.139999999999999990.370.370.37-0.0100000000000000090.390.350.35-0.0099999999999999530.370.320.35-0.0199999999999999620.370.320.350.00.350.270.23
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.19-0.0100000000000000090.220.150.23-0.0100000000000000090.220.170.230.00.380.390.39
Percentage of EffectiveIncomeTaxRateContinuingOperations158.350.0110.0136.4115.0100.078.6100.0109.5-0.0102.7105.4105.4

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

Deferred Tax Liabilities

Deferred Tax Assets Net

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value131315876111010124140404237363634343434349861309386118155
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value32454454352122
Percentage of UnrecognizedTaxBenefits23.115.426.762.557.166.745.540.030.041.750.05.95.9

Deferred Tax Assets Valuation Allowance

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value8488578348428520
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.00.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value5916016106176270
Percentage of OperatingLeaseRightOfUseAsset69.770.173.173.373.60.0

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value157412172539704741006245921683844110842102830
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value130393315786352818178295747301776919704859
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents82.876.75.981.074.381.36.990.084.086.515.591.318.684.80.0

Proceeds From Repayments Of Short Term Debt

us-gaap:ProceedsFromRepaymentsOfShortTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312011-03-312010-03-31
Value-484392139-274-11311214483-520812221-680200-218453-107-491-330369-85726-281-625-106701-621231-180379482464475
Percentage of ProceedsFromRepaymentsOfShortTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-54020781-236-107188454-3637633-603305-155
Percentage of ProceedsFromRepaymentsOfShortTermDebt111.652.858.386.19.515.594.069.894.01.488.7152.571.1

dei:LegalEntity

ed:AdjustmentstoAdditionalPaidinCapitalContributionsbyParent

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value252562522525252545
Percentage of AdjustmentstoAdditionalPaidinCapitalContributionsbyParent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:AdditionalPaidInCapital, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value252562522525252545
Percentage of AdjustmentstoAdditionalPaidinCapitalContributionsbyParent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementScenario, us-gaap:LongTermContractForPurchaseOfElectricPower, dei:LegalEntity

ed:BaseRateIncreaseDecrease

srt:ScenarioForecast, ed:RatePlanforYear1, ed:RocklandElectricCompany



Period End2020-02-29
Value12
Percentage of BaseRateIncreaseDecrease100.0

ed:ContractwithCustomerLiabilityDecreaseFromBillings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0-120043-132
Percentage of ContractwithCustomerLiabilityDecreaseFromBillings0.0100.0100.00.00.0100.0100.0100.0100.0

ed:ContractwithCustomerLiabilityUnbilledRevenueAccrualsAndDeferrals



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-5132-3315-11117-22-65-48150-19-235
Percentage of ContractwithCustomerLiabilityUnbilledRevenueAccrualsAndDeferrals100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-4141-17-2-1947-7-23-1354-19-235
Percentage of ContractwithCustomerLiabilityUnbilledRevenueAccrualsAndDeferrals80.4128.151.5-13.3172.740.231.835.427.136.0100.0100.0100.0

ed:DeferredDerivativeGainsLosses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value2615-18-19612-2431-3-21-319-311-42-1-233411-3-34-1319-117-61
Percentage of DeferredDerivativeGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2615-15-21089-2328-2-17-5
Percentage of DeferredDerivativeGainsLosses100.0100.0100.083.3200.0111.1133.375.095.890.366.781.0166.7

us-gaap:BalanceSheetLocation

ed:DeferredDerivativeGainsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-30
Value-1115-1651065-2229-4-21017-110-41-1-23306-1-1317
Percentage of DeferredDerivativeGainsLosses-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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value350-2-6-107-2210-32-210100045-2
Percentage of DeferredDerivativeGainsLosses150.083.30.011.1600.0-11.10.058.38.36.5-33.3-0.0100.010.566.79.1-0.050.0-0.0-0.00.011.845.566.7

us-gaap:BalanceSheetLocation, dei:LegalEntity

ed:DeferredDerivativeGainsCurrent, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-1215-1531166
Percentage of DeferredDerivativeGainsLosses-50.033.3100.083.3-300.0122.2100.050.0

ed:DeferredDerivativeGainsNonCurrent, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3400-5-123
Percentage of DeferredDerivativeGainsLosses150.066.70.0-0.0500.0-11.133.325.0

ed:DeferredGainLossLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-30
Value-155-92-11-151-47-263669-7456-63-27-65-39-7584-159-118-31-5324113-36-1211330-2-4856-231311-120-53-1612-366-2906
Percentage of DeferredGainLossLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-140-83-10-139-40-223364-6851-55-27-59
Percentage of DeferredGainLossLiability90.390.290.992.185.184.691.792.891.991.187.3100.090.8

us-gaap:BalanceSheetLocation

ed:DeferredDerivativeLossesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-14-596-36-3-172544-4841-112203-1968-30-568-114317-6-2
Percentage of DeferredGainLossLiability9.064.1-54.523.86.465.469.463.864.973.217.5-81.5-0.0-7.725.381.018.947.5-25.820.8179.215.016.716.7

ed:RecoverableEnergyCosts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-30
Value-96-48-35-41-18-13-4-3425-29-40-40-45-49-39-52-73-44-53-40094-33-794-17-19-1411-33-60-63-74-53
Percentage of DeferredGainLossLiability61.952.2318.227.238.350.0-11.1-49.3-33.8-51.863.5148.169.2125.652.0-61.945.937.3171.075.50.083.291.758.383.2-56.7950.029.219.6143.5-461.5-572.761.7331.2

ed:RegulatoryAssetsNonCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-451518-74-2641559-5144-12-9-207-1768-56-1814-2-1923-3
Percentage of DeferredGainLossLiability29.0-16.3-163.649.055.3-15.441.785.568.978.619.033.330.8-17.922.781.035.215.3-45.23.8-79.21.8-8.325.0

us-gaap:BalanceSheetLocation, dei:LegalEntity

ed:DeferredDerivativeLossesCurrent, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-12-556-340-152542
Percentage of DeferredGainLossLiability7.759.8-54.522.5-0.057.769.460.9

ed:RecoverableEnergyCosts, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-86-42-32-37-14-12-6-34
Percentage of DeferredGainLossLiability55.545.7290.924.529.846.2-16.7-49.3

ed:RegulatoryAssetsNonCurrent, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-421416-68-2651456
Percentage of DeferredGainLossLiability27.1-15.2-145.545.055.3-19.238.981.2

us-gaap:RetirementPlanType

ed:DefinedBenefitPlanCostCapitalized

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value211222
Percentage of DefinedBenefitPlanCostCapitalized100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value312826263332
Percentage of DefinedBenefitPlanCostCapitalized1550.02800.02600.01300.01650.01600.0

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value112221
Percentage of DefinedBenefitPlanCostCapitalized50.0100.0200.0100.0100.050.0

us-gaap:PensionPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value292624243030
Percentage of DefinedBenefitPlanCostCapitalized1450.02600.02400.01200.01500.01500.0

us-gaap:RetirementPlanType

ed:DefinedBenefitPlanCostCreditRecognized

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-09-302019-03-312018-09-30
Value0-2-3-2
Percentage of DefinedBenefitPlanCostCreditRecognized0.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-09-302019-03-312018-09-30
Value28606068
Percentage of DefinedBenefitPlanCostCreditRecognized0.0-3000.0-2000.0-3400.0

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-03-312018-09-30
Value-1-4-4-3
Percentage of DefinedBenefitPlanCostCreditRecognized0.0200.0133.3150.0

us-gaap:PensionPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-03-312018-09-30
Value22555558
Percentage of DefinedBenefitPlanCostCreditRecognized0.0-2750.0-1833.3-2900.0

dei:LegalEntity

ed:EarningsAdjustmentMechanismIncentiveRevenue

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value46
Percentage of EarningsAdjustmentMechanismIncentiveRevenue100.0

ed:OrangeAndRocklandUtilitiesInc



Period End2020-03-31
Value3
Percentage of EarningsAdjustmentMechanismIncentiveRevenue6.5

us-gaap:RetirementPlanType

ed:EffectOfReconciliationToRateLevel

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-2223322
Percentage of EffectOfReconciliationToRateLevel100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-64-3-5-5-24-22
Percentage of EffectOfReconciliationToRateLevel290.9-150.0-166.7-166.7-1200.0-1100.0

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-2412222
Percentage of EffectOfReconciliationToRateLevel109.150.066.766.7100.0100.0

us-gaap:PensionPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-62-2-4-4-26-24
Percentage of EffectOfReconciliationToRateLevel281.8-100.0-133.3-133.3-1300.0-1200.0

ed:EffectiveIncomeTaxRateReconciliationCARESActNetOperatingLossCarrybackPercent



Period End2020-03-312019-03-31
Value-0.010.0
Percentage of EffectiveIncomeTaxRateReconciliationCARESActNetOperatingLossCarrybackPercent100.00.0

ed:EffectiveIncomeTaxRateReconciliationCostOfRemoval



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.020.00.0-0.02-0.010.00.0-0.02-0.010.00.01-0.03-0.01
Percentage of EffectiveIncomeTaxRateReconciliationCostOfRemoval100.00.00.0100.0100.00.00.0100.0100.00.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.020.00.0-0.02-0.010.00.0-0.02-0.010.00.01-0.03-0.01
Percentage of EffectiveIncomeTaxRateReconciliationCostOfRemoval100.00.00.0100.0100.00.00.0100.0100.00.0100.0100.0100.0

ed:EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.01-0.010.0-0.02-0.010.0-0.01-0.010.00.0-0.01-0.020.0
Percentage of EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent100.0100.00.0100.0100.00.0100.0100.00.00.0100.0100.00.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.010.00.0-0.010.00.0-0.01-0.01-0.010.0-0.01-0.02-0.01
Percentage of EffectiveIncomeTaxRateReconciliationOtherPlantRelatedItemsPercent100.0-0.00.050.0-0.00.0100.0100.00.00.0100.0100.00.0

ed:EffectiveIncomeTaxRateReconciliationTaxCreditRenewableEnergyCreditsPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.020.00.010.050.010.00.010.030.010.00.010.020.01
Percentage of EffectiveIncomeTaxRateReconciliationTaxCreditRenewableEnergyCreditsPercent100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0

ed:FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainLossIncludedinRegulatoryAssetsandLiabilities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value1-1-27-5-4-12-13-112-51-3-10
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainLossIncludedinRegulatoryAssetsandLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value0-1-25-30-2-1-8-70
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredonRecurringBasisUnobservableInputsReconciliationGainLossIncludedinRegulatoryAssetsandLiabilities0.0100.092.660.0-0.0200.0-50.061.563.60.0

ed:IncomeBeforeInterestIncomeInterestExpenseAndIncomeTaxes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value769585881461800624815423740562912457796481989526643400839482730247845464695481860388528455853473564755403635715441500388
Percentage of IncomeBeforeInterestIncomeInterestExpenseAndIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value681519714361719460731347674515800388710
Percentage of IncomeBeforeInterestIncomeInterestExpenseAndIncomeTaxes88.688.781.078.389.973.789.782.091.191.687.784.989.2

ed:IncreaseDecreaseInRevenueDecouplingMechanismReceivables



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value32-15-36725500
Percentage of IncreaseDecreaseInRevenueDecouplingMechanismReceivables100.0100.0100.0100.0100.00.00.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value22-15-35715500
Percentage of IncreaseDecreaseInRevenueDecouplingMechanismReceivables68.8100.097.298.6100.00.00.0

ed:IncreaseDecreaseinSystemBenefitChargeLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-191110-7618-203163-93626765514210645
Percentage of IncreaseDecreaseinSystemBenefitChargeLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-2099-7716-162759-90556159
Percentage of IncreaseDecreaseinSystemBenefitChargeLiability105.381.890.0100.0116.788.980.087.193.796.888.791.090.8

ed:LateFeeIncomeandOtherFeesNotCollected



Period End2020-03-31
Value3
Percentage of LateFeeIncomeandOtherFeesNotCollected100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value3
Percentage of LateFeeIncomeandOtherFeesNotCollected100.0

ed:NetDeferredGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value-153-864-169-48-174281-9887-66-48-68-20-7895-163-116-32-5527147-47-914743-2-5767-301910-119-54-2121-13067-296
Percentage of NetDeferredGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-138-775-154-42-124173-9179-57-44-64
Percentage of NetDeferredGainLoss90.289.5125.091.187.570.697.690.192.990.886.491.794.1

ed:PaymentsNonUtilityConstructionExpenditures



Period End2020-03-312019-03-31
Value13048
Percentage of PaymentsNonUtilityConstructionExpenditures100.0100.0

us-gaap:RetirementPlanType

ed:PeriodicBenefitCostAfterAmortizationOfRegulatoryAsset

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value123919191123122
Percentage of PeriodicBenefitCostAfterAmortizationOfRegulatoryAsset100.0100.0100.0100.0100.0100.0

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:PensionPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value113838383113112
Percentage of PeriodicBenefitCostAfterAmortizationOfRegulatoryAsset91.991.291.291.291.991.8

dei:LegalEntity

ed:RevenuesFromLatePaymentCollectionAndOtherFeesPerMonth

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value6
Percentage of RevenuesFromLatePaymentCollectionAndOtherFeesPerMonth100.0

ed:OrangeAndRocklandUtilitiesInc



Period End2020-03-31
Value400000.0
Percentage of RevenuesFromLatePaymentCollectionAndOtherFeesPerMonth6.7

ed:UnbilledContractsReceivableDecreaseFromBillings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value181830231535507315
Percentage of UnbilledContractsReceivableDecreaseFromBillings100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:UnbilledContractsReceivableRevenueRecognized



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value142319202433383736
Percentage of UnbilledContractsReceivableRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:VariableInterestEntitiesByClassificationOfEntity

ed:VariableInterestEntityMeasureOfActivityNetIncomeLoss

ed:TaxEquityProjects, us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-09-302019-06-302019-03-31
Value-14-13-15-19
Percentage of VariableInterestEntityMeasureOfActivityNetIncomeLoss100.0100.0100.0100.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:VariableInterestEntitiesByClassificationOfEntity, dei:LegalEntity

ed:TaxEquityProjects, us-gaap:VariableInterestEntityPrimaryBeneficiary, ed:TaxEquityInvestors



Period End2020-03-312019-09-302019-06-302019-03-31
Value17302821
Percentage of VariableInterestEntityMeasureOfActivityNetIncomeLoss-121.4-230.8-186.7-110.5

us-gaap:AdjustmentForAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-09-302011-03-31
Value-11-28-29-30-29-32-29-28-28-31-31-31-31-53-45-49-63-14-18-6-14252223329-189101010311019
Percentage of AdjustmentForAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-11-30-29-29-29-35-33-32-33-35-35-36-36
Percentage of AdjustmentForAmortization100.0107.1100.096.7100.0109.4113.8114.3117.9112.9112.9116.1116.1

us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries

ed:OtherReceivables



Period End2020-03-31
Value0.0
Percentage of AllowanceForDoubtfulAccountsReceivableRecoveries0.0

us-gaap:TradeAccountsReceivable



Period End2020-03-31
Value2.0
Percentage of AllowanceForDoubtfulAccountsReceivableRecoveries0.0

us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, dei:LegalEntity

ed:OtherReceivables, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value0.0
Percentage of AllowanceForDoubtfulAccountsReceivableRecoveries0.0

us-gaap:TradeAccountsReceivable, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value2.0
Percentage of AllowanceForDoubtfulAccountsReceivableRecoveries0.0

us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs

ed:OtherReceivables



Period End2020-03-31
Value0.0
Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs0.0

us-gaap:TradeAccountsReceivable



Period End2020-03-31
Value18.0
Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs0.0

us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, dei:LegalEntity

ed:OtherReceivables, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value0.0
Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs0.0

us-gaap:TradeAccountsReceivable, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value18.0
Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs0.0

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us-gaap:AmortizationOfRegulatoryAsset

srt:ScenarioForecast, ed:RocklandElectricCompany



Period End2020-02-29
Value4
Percentage of AmortizationOfRegulatoryAsset100.0

us-gaap:PropertyPlantAndEquipmentByType

us-gaap:CapitalExpendituresIncurredButNotYetPaid

ed:SoftwareLicenses



Period End2020-03-312019-12-312019-03-312018-12-31
Value8001000
Percentage of CapitalExpendituresIncurredButNotYetPaid100.00.0100.00.0

us-gaap:Equipment



Period End2020-03-312019-12-312019-03-312018-12-31
Value33000
Percentage of CapitalExpendituresIncurredButNotYetPaid41.20.00.00.0

us-gaap:PropertyPlantAndEquipmentByType, dei:LegalEntity

ed:SoftwareLicenses, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-03-312018-12-31
Value760950
Percentage of CapitalExpendituresIncurredButNotYetPaid95.00.095.00.0

us-gaap:Equipment, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-03-312018-12-31
Value33000
Percentage of CapitalExpendituresIncurredButNotYetPaid41.20.00.00.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value357964-717496-532761-676238-161734-732740-728
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value370918-771434-466801-812255-156713-752750-685
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect103.695.2107.587.587.6105.3120.1107.196.997.1102.7101.494.1

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Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.760.740.740.740.7150.7150.7150.72
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConstructionInProgressExpendituresIncurredButNotYetPaid



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value3438-43230051-15-19352804426282146-12-926375-92319072-33-11151
Percentage of ConstructionInProgressExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value292-10-23026720-512272111617217
Percentage of ConstructionInProgressExpendituresIncurredButNotYetPaid85.1-125.050.093.889.039.233.3-63.277.3138.813.665.477.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12011003570
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.00.0100.0100.00.00.0100.0100.0

us-gaap:DeferredIncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value60511311810810015354101-141267103256259256941741872642417894262-33195-76250-47-872401986823237
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value94-116154-32122819741108924092234
Percentage of DeferredIncomeTaxExpenseBenefit156.7-227.5117.6-177.8113.08.0128.875.9106.9-6.489.989.391.4

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-27322-2-2
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-175-129-130-130-172-172
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses648.1-4300.0-6500.0-6500.08600.08600.0

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-27322-1-1
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.050.050.0

us-gaap:PensionPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-165-123-123-123-163-163
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses611.1-4100.0-6150.0-6150.08150.08150.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-10-1-111-2
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.00.0100.0100.0100.0100.0

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-1000000.0-1000000.00.00.00.0-1000000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.00.0-0.0-0.00.050.0

us-gaap:PensionPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-5-4-5-5-4-5
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit500.00.0500.0500.0-36.4250.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanContributionsByEmployer

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-31
Value30
Percentage of DefinedBenefitPlanContributionsByEmployer100.00.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value161716161818
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value258247247247258258
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets1612.51452.91543.81543.81433.31433.3

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value141314141616
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets87.576.587.587.588.988.9

us-gaap:PensionPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value245234234234245245
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets1531.21376.51462.51462.51361.11361.1

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value91111111011
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value137150150150141140
Percentage of DefinedBenefitPlanInterestCost1522.21363.61363.61363.61410.01272.7

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value899989
Percentage of DefinedBenefitPlanInterestCost88.981.881.881.880.081.8

us-gaap:PensionPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value129141141141131131
Percentage of DefinedBenefitPlanInterestCost1433.31281.81281.81281.81310.01190.9

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value24-4-4-4-2-2
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value24-4-4-4-3-4
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0150.0200.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value554455
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value736362627272
Percentage of DefinedBenefitPlanServiceCost1460.01260.01550.01550.01440.01440.0

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value443343
Percentage of DefinedBenefitPlanServiceCost80.080.075.075.080.060.0

us-gaap:PensionPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value695758586868
Percentage of DefinedBenefitPlanServiceCost1380.01140.01450.01450.01360.01360.0

us-gaap:DepreciationAndAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value470431421418413377360354348343337332329311305302297290285276279275270265261260258255251246240236233222219218211211204197
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value390353346339334327322316310304300296294
Percentage of DepreciationAndAmortization83.081.982.281.180.986.789.489.389.188.689.089.289.4

ed:OrangeAndRocklandUtilitiesInc



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value22222121191919181717171717171717171616151414141414141313
Percentage of DepreciationAndAmortization4.75.25.05.15.35.45.55.35.15.25.65.65.75.96.06.26.15.85.95.75.45.45.45.55.65.75.45.5

us-gaap:ConsolidationItems

ed:CorporateAndReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.00.00.00.00.00.01000000.00.00.00.00.01000000.01000000.01000000.0-1000000.00.0-1000000.0
Percentage of DepreciationAndAmortization0.00.00.00.00.00.00.30.00.00.00.00.30.30.3-0.30.0-0.3

us-gaap:PublicUtility, dei:LegalEntity

us-gaap:ElectricTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value297266261257248243
Percentage of DepreciationAndAmortization63.263.262.462.268.968.6

us-gaap:ElectricTransmission, ed:OrangeAndRocklandUtilitiesInc



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value161615151414
Percentage of DepreciationAndAmortization3.43.83.63.63.94.0

us-gaap:GasTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value715856555251
Percentage of DepreciationAndAmortization15.113.813.413.314.414.4

us-gaap:GasTransmission, ed:OrangeAndRocklandUtilitiesInc



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value666655
Percentage of DepreciationAndAmortization1.31.41.41.51.41.4

us-gaap:StatementBusinessSegments

ed:CleanEnergyBusinesses



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value5753585818191919181711109
Percentage of DepreciationAndAmortization12.112.613.914.05.05.45.55.65.45.23.63.33.0

ed:ConEdisonTransmission



Period End2020-03-312019-09-302019-03-312018-09-30
Value1000000.00.00.00.0
Percentage of DepreciationAndAmortization0.20.00.00.0

us-gaap:DerivativeGainLossOnDerivativeNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-9030-21-1768-7-44158-42-59-49-40-7727-113-52-52-10321137-37-31137494-4262-81018
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-71-100-20000000
Percentage of DerivativeGainLossOnDerivativeNet7.83.34.8-0.00.0-25.0-0.0-0.00.00.0-0.0-0.0-0.0

us-gaap:IncomeStatementLocation

ed:GasPurchasedForResale



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-2010-3-10-10164-47-51-63-40-38-23-10-12-26-26-42-14-29-32-14-10-6-7-4-30-1
Percentage of DerivativeGainLossOnDerivativeNet2.20.0-4.8-0.0-50.0-12.5-0.025.00.0103.8111.986.4128.6100.049.4-85.28.823.150.025.2-200.0-10.278.4103.2-10.2-20.4-150.016.7-6.537.50.0-5.6

ed:NonUtilityRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value5557911-7-34-65-814-6-2511105-2742-242014-24172-101-8
Percentage of DerivativeGainLossOnDerivativeNet-5.616.7-23.8-41.2150.0137.5100.075.0100.0-3.8-11.913.6-28.615.02.618.5-9.7-19.2-9.626.2200.0-17.5-54.1-45.2-17.52.0175.0-4.8-1.6-0.010.0-44.4

ed:OtherOperationsAndMaintenanceExpense



Period End2020-03-312019-09-302019-06-302019-03-312018-09-30
Value-7-1-120
Percentage of DerivativeGainLossOnDerivativeNet7.84.85.933.3-0.0

us-gaap:InterestExpense



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value-86-26-24-900
Percentage of DerivativeGainLossOnDerivativeNet95.6123.8141.2-150.0-0.0-0.0

us-gaap:IncomeStatementLocation, dei:LegalEntity

ed:OtherOperationsAndMaintenanceExpense, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-31
Value-7-1-12
Percentage of DerivativeGainLossOnDerivativeNet7.84.85.933.3

us-gaap:DividendsCommonStock



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-302009-03-31
Value255247242237222223223221214210211204204197191190190185184184180180180177-178177176175175168-168167-162-162
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value246229228228211212212211
Percentage of DividendsCommonStock96.592.794.296.295.095.195.195.5

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value255247242237222223223221214210211204204197191190190185184184180180180177-178177176175175168168167
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0-100.0100.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:RetainedEarnings, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value246229228228211212212211
Percentage of DividendsCommonStock96.592.794.296.295.095.195.195.5

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value0.210.00.210.210.210.00.210.210.210.00.350.350.350.039999999999999980.350.270.00.370.33
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.210.00.210.210.210.00.210.210.210.00.350.350.35
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.010.010.00.0-0.010.01-0.010.0-0.01-0.01-0.010.0-0.01
Percentage of EffectiveIncomeTaxRateReconciliationOtherAdjustments100.0100.00.00.0100.0100.0100.00.0100.0100.0100.00.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.01-0.01-0.01-0.010.0-0.01-0.010.00.00.00.00.0
Percentage of EffectiveIncomeTaxRateReconciliationOtherAdjustments-0.0100.00.00.0100.00.0100.00.0-0.0-0.0-0.00.0-0.0

us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.040.00.040.030.05-0.0100000000000000020.050.050.040.00.050.030.04
Percentage of EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.050.00.050.030.060.00.050.040.050.00.040.030.04
Percentage of EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes125.00.0125.0100.0120.0-0.0100.080.0125.00.080.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsResearch



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.09-0.030.030.10.04-0.030.020.070.030.00.00.00.0
Percentage of EffectiveIncomeTaxRateReconciliationTaxCreditsResearch100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.08-0.0199999999999999970.030.090.04-0.0199999999999999970.020.080.030.00.00.00.0
Percentage of EffectiveIncomeTaxRateReconciliationTaxCreditsResearch88.966.7100.090.0100.066.7100.0114.3100.00.00.00.00.0

us-gaap:EnvironmentalRemediationExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value5448388636477148931668710559610141013387910691492024
Percentage of EnvironmentalRemediationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5326245536347
Percentage of EnvironmentalRemediationExpense100.075.050.075.066.750.062.583.3100.0100.075.057.1100.0

us-gaap:EquityMethodInvestmentDividendsOrDistributions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value11111913141934193521351735232102421111700
Percentage of EquityMethodInvestmentDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.0

us-gaap:IncomeStatementLocation

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss

ed:NonUtilityRevenue



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value130-1-1-51
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss100.0100.00.0100.0100.0100.0100.0

us-gaap:IncomeStatementLocation, dei:LegalEntity

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

ed:NonUtilityRevenue, ed:CleanEnergyBusinesses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1030-11-1-6
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings100.00.0100.00.0100.0100.0100.0100.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value-540-44-32720-45-7-4-3
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-2110212110
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings40.025.00.0-0.050.0-33.3100.014.350.00.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value-710-3631440-1-2050
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.00.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-2110212110
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements28.6100.00.0-0.033.333.3200.025.025.00.0

us-gaap:GainLossOnDispositionOfAssets1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value09005000000
Percentage of GainLossOnDispositionOfAssets10.0100.00.00.0100.00.00.00.00.00.00.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value090050000
Percentage of GainLossOnDispositionOfAssets10.0100.00.00.0100.00.00.00.00.0

us-gaap:GainLossOnSaleOfDerivatives



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value-8328-24-21-10-3-3-3106-75-1-2697-64-712-168-142-1-5206836-7545730-3137-64
Percentage of GainLossOnSaleOfDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value44736661919855340261022654537872727761530281135647423367732056991695314559337714237249306701320414611251483558292351233
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value501336533179536279556180508355643234557
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments112.191.886.190.496.969.491.179.693.293.988.484.590.6

us-gaap:IncomeTaxReconciliationTaxContingencies



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value10-29-14-6505-272033
Percentage of IncomeTaxReconciliationTaxContingencies100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1-2102-1102
Percentage of IncomeTaxReconciliationTaxContingencies10.0100.011.1-0.050.016.720.00.040.0

us-gaap:IncreaseDecreaseInAccountsPayable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value-1567789-48-108-3853-913014940-16-78-11316363-84-162241-100-58-6333-9211375-72-37-8493107-78-154-100
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-1158548-65-75539-1083714540-19-41
Percentage of IncreaseDecreaseInAccountsPayable73.7110.453.9135.469.4-13.273.6118.7123.397.3100.0118.852.6

us-gaap:IncreaseDecreaseInAccountsReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value87-15157-20843-106251-1521477127-19466-69239-13130-178117-278243-7959-339315-2262-146135-97285-545139
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value78-5145-17936-65232-1401263107-17954
Percentage of IncreaseDecreaseInAccountsReceivable89.733.392.486.183.761.392.492.185.742.984.392.381.8

us-gaap:IncreaseDecreaseInDeferredCharges



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value382542517934170-10-13246-2394-27-853-76-51149941438-3524281-87103196-2871-37475-6725519502
Percentage of IncreaseDecreaseInDeferredCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value392383216947156-6-38202-2272-122151
Percentage of IncreaseDecreaseInDeferredCharges102.693.7128.094.4138.291.860.0292.382.194.944.4-262.596.2

us-gaap:IncreaseDecreaseInDeferredLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value116134-1868945413865179-2484-23-8-9-18441-35110-38841033326180688633621284-591011767178
Percentage of IncreaseDecreaseInDeferredLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value12212238549217314768161-231966-1829
Percentage of IncreaseDecreaseInDeferredLiabilities105.291.0-211.179.497.9320.4106.5104.689.993.4-287.0225.0-322.2

dei:LegalEntity

us-gaap:IncreaseDecreaseInDueFromAffiliatesCurrent

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value8-12769-896-11711813019-335-2-15
Percentage of IncreaseDecreaseInDueFromAffiliatesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value110-20-190202-31-1818-4-3-2613510-151136300-2242240
Percentage of IncreaseDecreaseInIncomeTaxesReceivable100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.0

us-gaap:IncreaseDecreaseInInterestPayableNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value85-7170-7297-10271-7268-6677-7254-5263-5154-4449-4948-32-5-37-39-7547-50174-5327525144
Percentage of IncreaseDecreaseInInterestPayableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value75-6770-7472-6868-6968-5961-5656
Percentage of IncreaseDecreaseInInterestPayableNet88.294.4100.0102.874.266.795.895.8100.089.479.277.8103.7

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value-7943069-1244330-24-2004313141-69-17135709561764-3322241-40-364-8-96820-48-260
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-50-71060-7721266-13150340-56
Percentage of IncreaseDecreaseInOtherOperatingLiabilities63.3-175.033.387.062.148.886.7-25.065.5116.323.128.481.2

us-gaap:IncreaseDecreaseInOtherReceivables



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value-284922-1613631-3794-2655118-3036-128-24071-60165-1196-8-421083-8527-372-66-8
Percentage of IncreaseDecreaseInOtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-25538-1392449-276682127-23-33
Percentage of IncreaseDecreaseInOtherReceivables89.3108.236.486.366.7158.173.070.2-30.8420.052.9-127.8110.0

us-gaap:IncreaseDecreaseInPensionAndPostretirementObligations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value41048575936193878410992108105145162163139190187194185210201218193164198197270244230253-23258
Percentage of IncreaseDecreaseInPensionAndPostretirementObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3938070875185778096839893
Percentage of IncreaseDecreaseInPensionAndPostretirementObligations75.089.494.193.393.583.691.488.595.288.190.290.788.6

us-gaap:IncreaseDecreaseInPrepaidExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value479-447485-413448-480451-386422-414397-358394-423388-359374-554424-163307-481497-342353-385402-303263-274282286217289
Percentage of IncreaseDecreaseInPrepaidExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value473-438466-405438-439431-400417-390378-353373
Percentage of IncreaseDecreaseInPrepaidExpense98.798.096.198.197.891.595.6103.698.894.295.298.694.7

us-gaap:IncreaseDecreaseInPropertyAndOtherTaxesPayable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value-4537-124-19113-2-616514-2623-5-5-1191-28824-21-29-3789757178-1854-4641-2070
Percentage of IncreaseDecreaseInPropertyAndOtherTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-4234-50-181632-6870-11-18
Percentage of IncreaseDecreaseInPropertyAndOtherTaxesPayable93.391.941.70.094.7145.5100.0-100.0111.5107.7-100.025.069.2

us-gaap:IncrementalCommonSharesAttributableToContingentlyIssuableShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value10100011101110111011101110111011111111100
Percentage of IncrementalCommonSharesAttributableToContingentlyIssuableShares100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value101-645472921139704347557654-90261363655777426
Percentage of InterestExpenseOther100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value11151619171310753444
Percentage of InterestExpenseOther10.9-250.035.640.458.661.976.977.871.40.0100.0133.3100.0

us-gaap:InterestPaidNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value143300154292130286130265124246
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value972379923910123810023193214
Percentage of InterestPaidNet67.879.064.381.877.783.276.987.275.087.0

us-gaap:InvestmentIncomeNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value262625222423393620202020192151154412145128141258744427109914618
Percentage of InvestmentIncomeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2171049-16455234
Percentage of InvestmentIncomeNet7.765.440.018.237.5-4.315.411.125.025.010.015.021.1

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders



Period End2020-03-312019-09-302019-06-302019-03-312018-06-302018-03-312017-06-302017-03-312016-06-302016-03-31
Value21132000001
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.00.00.00.00.00.0100.0

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest



Period End2020-03-312019-09-302019-06-302019-03-312016-03-31
Value211321
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value11481098
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value447544
Percentage of OperatingLeasePayments36.497.950.044.450.0

us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-03-31
Value42
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:AccumulatedDefinedBenefitPlansAdjustment, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0-300000
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value5-91142224011-151104115-2611421223-32-17-2522
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1-210000100100
Percentage of OtherComprehensiveIncomeLossNetOfTax20.022.2100.00.00.00.00.050.00.00.0100.00.0-0.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-09-302019-03-312018-09-30
Value5142
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value51142224
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:AccumulatedDefinedBenefitPlansAdjustment, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1-2100001
Percentage of OtherComprehensiveIncomeLossNetOfTax20.022.2100.00.00.00.00.050.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-511-1-1-4-2-2-2-40-1-11-5-1-10-4-1-1-5141-1-4-21-2-2-33-21-725-2-2
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-14-10000-1
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax20.036.4100.0-0.0-0.0-0.0-0.050.0

us-gaap:OtherIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value21910411-176642017513184
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherIncreaseDecreaseInEnvironmentalLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-30
Value-3-1-1-6-1-5-8-4-2-5-3-7118555-187848792006
Percentage of OtherIncreaseDecreaseInEnvironmentalLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-5-2-2-6-2-4-5-6-3-5-3-51
Percentage of OtherIncreaseDecreaseInEnvironmentalLiabilities166.7200.0200.0100.0200.080.062.5150.0150.0100.0100.071.4100.0

us-gaap:OtherNoncashIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-31
Value-45-78134-159-11322348-42385-43-57-7-35-4-55-13-545-1610-4-45108-7-147-37-32-6417
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-35-269-111-3373101015288
Percentage of OtherNoncashIncomeExpense77.8371.4112.5-7.7275.020.8-63.69.443.520.8-35.773.7160.0

us-gaap:OtherNonoperatingExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value72282527245661484594512156554522363346333643743635
Percentage of OtherNonoperatingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value672422221944434239-101414037
Percentage of OtherNonoperatingExpense93.185.788.081.579.278.670.587.586.7-1122.21025.0800.03700.0

us-gaap:PaymentsForConstructionInProcess



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value767810815830783794855812790880723711714778713741603724664624550576590575498638587576538467420471398430
Percentage of PaymentsForConstructionInProcess100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value719757770773728736806762747820679669672
Percentage of PaymentsForConstructionInProcess93.793.594.593.193.092.794.393.894.693.293.994.194.1

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-5-5-6-6-5-5-12-6-11-5-8-8-16-17663691354186-6000-36-5-70-5-13-3-2-19-600
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:PaymentsForProceedsFromRemovalCosts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value68767770727067586363635963575451446351555048695247735146475733433934
Percentage of PaymentsForProceedsFromRemovalCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value67747668707265576161605861
Percentage of PaymentsForProceedsFromRemovalCosts98.597.498.797.197.2102.997.098.396.896.895.298.396.8

us-gaap:PaymentsOfDebtIssuanceCosts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-31
Value2217-2161405151717481123130118306-6057004
Percentage of PaymentsOfDebtIssuanceCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.00.0100.0100.00.00.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value23121711221518160
Percentage of PaymentsOfDebtIssuanceCosts104.570.6-50.043.8100.030.040.0100.0100.0114.3100.085.70.0

us-gaap:PaymentsOfDividendsCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value243234235229226211211211209203202199199193192193185173180190190186185184184181180180180185175175173155
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

us-gaap:PaymentsOfOrdinaryDividends

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value246227229228228211212212211199199199199
Percentage of PaymentsOfOrdinaryDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireProjects



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value8715038721932531100324713342173511165278011720
Percentage of PaymentsToAcquireProjects100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:PaymentsToMinorityShareholders



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value2532000001000
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.00.00.00.00.00.0100.00.00.00.0

us-gaap:PensionAndOtherPostretirementBenefitContributions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-09-302011-03-31
Value44275744410718418451791541295203154153334620320401712132000526126235-1691371-18477-491
Percentage of PensionAndOtherPostretirementBenefitContributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value432457434691841834135153128
Percentage of PensionAndOtherPostretirementBenefitContributions100.075.089.1100.075.0100.064.5100.099.580.075.499.499.2

dei:LegalEntity

us-gaap:ProceedsFromContributionsFromParent

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value25252562522525252545222342322
Percentage of ProceedsFromContributionsFromParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceInitialPublicOffering



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302016-09-302015-09-30
Value88040042500034300
Percentage of ProceedsFromIssuanceInitialPublicOffering100.00.0100.0100.00.00.00.0100.00.00.0

us-gaap:ProceedsFromIssuanceOfCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-08-312017-09-302017-06-302017-03-312016-12-312016-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-03-312010-10-312010-03-31
Value1478513141366613131330634312131266411-1-17-4-82530514
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfProductiveAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value014400485000001123225000
Percentage of ProceedsFromSaleOfProductiveAssets0.0100.00.00.0100.0100.00.00.00.00.00.0100.0100.0100.0100.00.00.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value014400480000
Percentage of ProceedsFromSaleOfProductiveAssets0.0100.00.00.0100.00.00.00.00.0

us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:ProvisionForDoubtfulAccounts

ed:OtherReceivables



Period End2020-03-31
Value1.0
Percentage of ProvisionForDoubtfulAccounts100.0

us-gaap:TradeAccountsReceivable



Period End2020-03-31
Value21.0
Percentage of ProvisionForDoubtfulAccounts2100.0

us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, dei:LegalEntity

ed:OtherReceivables, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value0.0
Percentage of ProvisionForDoubtfulAccounts0.0

us-gaap:TradeAccountsReceivable, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value21.0
Percentage of ProvisionForDoubtfulAccounts2100.0

us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-03-312010-03-31
Value333333322322161222111-212121011145
Percentage of PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3332322222211
Percentage of PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions100.0100.0100.066.7100.066.766.7100.0100.066.7100.050.0100.0

us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value534431434332233222111-211121111122244453
Percentage of PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4333314333322
Percentage of PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity80.0100.075.075.0100.0100.0100.0100.075.0100.0100.0100.0100.0

us-gaap:StatementScenario, dei:LegalEntity

us-gaap:PublicUtilitiesApprovedReturnOnEquityPercentage

srt:ScenarioForecast, ed:RocklandElectricCompany



Period End2020-02-29
Value0.095
Percentage of PublicUtilitiesApprovedReturnOnEquityPercentage100.0

us-gaap:StatementScenario, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, dei:LegalEntity

us-gaap:PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount

srt:ScenarioForecast, us-gaap:ElectricTransmission, ed:NewJerseyBoardOfPublicUtilities, ed:RocklandElectricCompany



Period End2020-02-29
Value20
Percentage of PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount100.0

dei:LegalEntity, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, us-gaap:StatementScenario

us-gaap:PublicUtilitiesRequestedRateIncreaseDecreaseAmount

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:ElectricTransmission, ed:NYSPSC, us-gaap:ScenarioForecast



Period End2022-01-312021-01-31
Value263352
Percentage of PublicUtilitiesRequestedRateIncreaseDecreaseAmount100.0100.0

ed:ConsolidatedEdisonCompanyofNewYorkInc., us-gaap:GasTransmission, ed:NYSPSC, us-gaap:ScenarioForecast



Period End2022-01-312021-01-31
Value155138
Percentage of PublicUtilitiesRequestedRateIncreaseDecreaseAmount58.939.2

us-gaap:StatementScenario, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, dei:LegalEntity

srt:ScenarioForecast, us-gaap:ElectricTransmission, ed:NewJerseyBoardOfPublicUtilities, ed:RocklandElectricCompany



Period End2020-02-29
Value19
Percentage of PublicUtilitiesRequestedRateIncreaseDecreaseAmount0.0

us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-09-302019-03-312018-09-30
Value-1-1-2-2
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:AccumulatedDefinedBenefitPlansAdjustment, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-1000000.0-1000000.0-1000000.00.00.00.00.0-1000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.00.0100.00.0-0.00.0-0.00.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues



Period End2020-01-312019-03-312017-08-31
Value154
Percentage of StockIssuedDuringPeriodSharesNewIssues100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:StatementEquityComponents, us-gaap:SubsequentEventType

us-gaap:ForwardContracts, us-gaap:CommonStock, us-gaap:SubsequentEvent



Period End2020-01-31
Value1
Percentage of StockIssuedDuringPeriodSharesNewIssues100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStock



Period End2020-03-312019-06-302019-03-312018-12-312018-12-312017-09-302016-05-312016-06-30
Value15691041010
Percentage of StockIssuedDuringPeriodSharesNewIssues0.00.0106.20.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues



Period End2020-03-312020-01-312019-06-302019-03-312019-03-312018-12-312017-09-302016-06-30
Value8888400425425705343702
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:StatementEquityComponents, us-gaap:SubsequentEventType

us-gaap:ForwardContracts, us-gaap:CommonStock, us-gaap:SubsequentEvent



Period End2020-01-31
Value88
Percentage of StockIssuedDuringPeriodValueNewIssues100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-06-302019-03-312018-12-312017-09-302016-06-30
Value88402433719345723
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.5101.9102.0100.6103.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value2623292723252725252624232628
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value2623292723252725252624232628
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TaxesExcludingIncomeAndExciseTaxes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-06-30
Value638606618578605559597540570558544511542508528485510478504458497458452467499464500457473465476433450483445458449405428367
Percentage of TaxesExcludingIncomeAndExciseTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value607580590550575535570512539534520487515
Percentage of TaxesExcludingIncomeAndExciseTaxes95.195.795.595.295.095.795.594.894.695.795.695.395.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:VariableInterestEntitiesByClassificationOfEntity

us-gaap:VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax

ed:TaxEquityProjects, us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value-10-28-10-12-14
Percentage of VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax100.0100.0100.0100.0100.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:VariableInterestEntitiesByClassificationOfEntity, dei:LegalEntity

ed:TaxEquityProjects, us-gaap:VariableInterestEntityPrimaryBeneficiary, ed:TaxEquityInvestors



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value1338232116
Percentage of VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax-130.0-135.7-230.0-175.0-114.3

us-gaap:BusinessAcquisition

ed:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumePropertyPlantandEquipmentPropertyPlantandEquipmentNonUtilityPlantDepreciation

ed:CopperMountainMesquiteSolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value191510841
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumePropertyPlantandEquipmentPropertyPlantandEquipmentNonUtilityPlantDepreciation100.0100.0100.0100.0100.0100.0

ed:GreatValleySolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1197531
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumePropertyPlantandEquipmentPropertyPlantandEquipmentNonUtilityPlantDepreciation57.960.070.062.575.0100.0

us-gaap:BusinessAcquisition

ed:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumePropertyPlantandEquipmentPropertyPlantandEquipmentNonUtilityPlantNet

ed:CopperMountainMesquiteSolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value456461465488492492
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumePropertyPlantandEquipmentPropertyPlantandEquipmentNonUtilityPlantNet100.0100.0100.0100.0100.0100.0

ed:GreatValleySolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value291293295309311313
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumePropertyPlantandEquipmentPropertyPlantandEquipmentNonUtilityPlantNet63.863.663.463.363.263.6

us-gaap:StatementEquityComponents

ed:CommonStockEquityShares

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value334333332332327321311311311310310306305305305304294293293292292292292292292292292292292292292292882996292292292292292291283282281281273
Percentage of CommonStockEquityShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value23232323232323232323232323232323232323232323232323232323232323231996002323232323232323232323
Percentage of CommonStockEquityShares6.96.96.96.97.07.27.47.47.47.47.47.57.57.57.57.67.87.87.97.97.97.97.97.97.97.97.97.97.97.97.97.97.97.97.97.97.98.08.28.28.28.38.5

ed:ContractWithCustomerLiabilityRevenueRecognizedPreviouslyOutstanding



Period End2020-01-012019-01-012018-01-01
Value1148
Percentage of ContractWithCustomerLiabilityRevenueRecognizedPreviouslyOutstanding100.0100.0100.0

us-gaap:SubsequentEventType

ed:DebtInstrumentCovenantComplianceMaximumAggregateLimitOfFailureToPayDebtOrDerivativeObligations

us-gaap:SubsequentEvent



Period End2020-04-30
Value150
Percentage of DebtInstrumentCovenantComplianceMaximumAggregateLimitOfFailureToPayDebtOrDerivativeObligations100.0

ed:DeferredTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCredit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value634862276136601159515820583457105638549510205
Percentage of DeferredTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value61556000608258935893573957075513545553069450
Percentage of DeferredTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCredit97.096.499.198.099.098.697.896.596.896.692.6

ed:DerivativeAssetLiabilityGrossAmountOffsetInBalanceSheet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value-14-17-11-213102-30-3-10-2-6-15-19-57-46-39-49-158-14024273
Percentage of DerivativeAssetLiabilityGrossAmountOffsetInBalanceSheet100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value-11-17-11-251-110-31-9
Percentage of DerivativeAssetLiabilityGrossAmountOffsetInBalanceSheet78.6100.0100.0119.033.3-100.00.00.0100.00.0150.0

ed:DirectFinancingLeaseAccumulatedAmortization



Period End2020-03-312019-12-312019-09-302019-06-30
Value3555
Percentage of DirectFinancingLeaseAccumulatedAmortization100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value1333
Percentage of DirectFinancingLeaseAccumulatedAmortization33.360.060.060.0

ed:DisposalGroupIncludingDiscontinuedOperationPropertyPlantandEquipmentNonUtilityPlantNetNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value379738293848396139764000183717911803177616861535153514821127859859832572388
Percentage of DisposalGroupIncludingDiscontinuedOperationPropertyPlantandEquipmentNonUtilityPlantNetNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2233344444
Percentage of DisposalGroupIncludingDiscontinuedOperationPropertyPlantandEquipmentNonUtilityPlantNetNoncurrent0.10.10.10.10.10.10.20.20.20.2

ed:EnergyRelatedInventoryFuelOilGasAndMaterialsAndSuppliesCost



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value326352358344327358338318301334337357313339335321342350338321332372343322303363368321270330355337325356375310245348328355
Percentage of EnergyRelatedInventoryFuelOilGasAndMaterialsAndSuppliesCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value273293295287280304290277263287270
Percentage of EnergyRelatedInventoryFuelOilGasAndMaterialsAndSuppliesCost83.783.282.483.485.684.985.887.187.485.979.6

ed:LiabilitiesNoncurrentExcludingLongTermDebt



Period End2020-03-312019-12-31
Value1495815052
Percentage of LiabilitiesNoncurrentExcludingLongTermDebt100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-31
Value1353813665
Percentage of LiabilitiesNoncurrentExcludingLongTermDebt90.590.8

ed:MaximumPotentialFutureExposureOnCreditRiskDerivativesWithCommodityExchangeBrokers



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302014-09-302014-06-302014-03-312013-12-312013-03-312012-12-312012-06-302011-09-302011-06-302011-03-31
Value915111013191614192215132025207963497846444134445365
Percentage of MaximumPotentialFutureExposureOnCreditRiskDerivativesWithCommodityExchangeBrokers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value78666677711
Percentage of MaximumPotentialFutureExposureOnCreditRiskDerivativesWithCommodityExchangeBrokers77.853.354.560.046.231.643.850.036.850.0

ed:NetUtilityPlant



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value38187378143722036718360383560235079346703411233668330123272532272318703107230740303903013029370290492867628295279092745427004264022589525675253872527424927245362429623724245902430423981237942307222439
Percentage of NetUtilityPlant100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value3596035600350393456533920335203302232639321353170330011
Percentage of NetUtilityPlant94.294.194.194.194.194.294.194.194.294.294.2

us-gaap:StatementScenario, dei:LegalEntity

ed:PercentageOfDebtSecuritiesAmortizedCostBased

srt:ScenarioForecast, ed:RocklandElectricCompany



Period End2020-02-29
Value0.0488
Percentage of PercentageOfDebtSecuritiesAmortizedCostBased100.0

ed:ProvisionForInjuriesAndDamages



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value129130139144143146158159161153164171173160170188193185185186185182188190198195195144152149145158158181180182167165172168
Percentage of ProvisionForInjuriesAndDamages100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value124125135140137141153153155147154
Percentage of ProvisionForInjuriesAndDamages96.196.297.197.295.896.696.896.296.396.196.2

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

ed:PublicUtilitiesMaximumDeferralPercentage

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



Period End2022-12-31
Value0.15
Percentage of PublicUtilitiesMaximumDeferralPercentage100.0

us-gaap:StatementScenario, us-gaap:LongTermContractForPurchaseOfElectricPower, us-gaap:PublicUtility, dei:LegalEntity

ed:PublicUtilitiesPropertyPlantandEquipmentRateBaseAdjustments

srt:ScenarioForecast, ed:RatePlanforYear1, us-gaap:ElectricTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2022-12-31
Value113
Percentage of PublicUtilitiesPropertyPlantandEquipmentRateBaseAdjustments100.0

srt:ScenarioForecast, ed:RatePlanforYear1, us-gaap:GasTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2022-12-31
Value84
Percentage of PublicUtilitiesPropertyPlantandEquipmentRateBaseAdjustments74.3

srt:ScenarioForecast, ed:RatePlanforYear2, us-gaap:ElectricTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2022-12-31
Value370
Percentage of PublicUtilitiesPropertyPlantandEquipmentRateBaseAdjustments327.4

srt:ScenarioForecast, ed:RatePlanforYear2, us-gaap:GasTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2022-12-31
Value122
Percentage of PublicUtilitiesPropertyPlantandEquipmentRateBaseAdjustments108.0

srt:ScenarioForecast, ed:RatePlanforYear3, us-gaap:ElectricTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2022-12-31
Value326
Percentage of PublicUtilitiesPropertyPlantandEquipmentRateBaseAdjustments288.5

srt:ScenarioForecast, ed:RatePlanforYear3, us-gaap:GasTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2022-12-31
Value167
Percentage of PublicUtilitiesPropertyPlantandEquipmentRateBaseAdjustments147.8

ed:RevenueDecouplingMechanismReceivable



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312010-06-302009-12-31
Value1087691127023117
Percentage of RevenueDecouplingMechanismReceivable100.0100.0100.0100.00.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value9876911270
Percentage of RevenueDecouplingMechanismReceivable90.7100.0100.0100.00.0

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

ed:RevenueRequirementEarningsPercentage

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



Period End2022-12-31
Value0.093
Percentage of RevenueRequirementEarningsPercentage100.0

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



Period End2021-12-31
Value0.096
Percentage of RevenueRequirementEarningsPercentage0.0

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



Period End2022-12-31
Value0.093
Percentage of RevenueRequirementEarningsPercentage100.0

srt:ScenarioForecast, us-gaap:GasTransmission, ed:OrangeAndRocklandUtilitiesInc



Period End2021-12-31
Value0.096
Percentage of RevenueRequirementEarningsPercentage0.0

ed:SystemBenefitsChargeLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value628647636626633627609629598535628566499434190
Percentage of SystemBenefitsChargeLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value567587578569576569553569542483398
Percentage of SystemBenefitsChargeLiabilityCurrent90.390.790.990.991.090.790.890.590.690.391.7

us-gaap:EnvironmentalRemediationContingency

us-gaap:AccrualForEnvironmentalLossContingencies

ed:AsbestosSuits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value88888888888888888888888888101010
Percentage of AccrualForEnvironmentalLossContingencies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:WorkersCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-06-302012-12-31
Value777879798079808184848789888890919186868684839394
Percentage of AccrualForEnvironmentalLossContingencies962.5975.0987.5987.51000.0987.51000.01012.51050.01050.01087.51112.51100.01100.01125.01137.51137.51075.01075.01075.01050.01037.5930.0940.0

us-gaap:EnvironmentalRemediationContingency, dei:LegalEntity

ed:WorkersCompensation, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value7273757575
Percentage of AccrualForEnvironmentalLossContingencies900.0912.5937.5937.5937.5

us-gaap:AccruedEnvironmentalLossContingenciesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value737734767770776779720728734737745745746753752758767765746751758764734738741749512522536545537539537489496502511512236212
Percentage of AccruedEnvironmentalLossContingenciesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value657654684686691693626631634637655
Percentage of AccruedEnvironmentalLossContingenciesNoncurrent89.189.189.289.189.089.086.986.786.486.487.0

us-gaap:EnvironmentalRemediationSite

ed:OtherSuperfundSites



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value101948889899081838586868687898888898680808080798084
Percentage of AccruedEnvironmentalLossContingenciesNoncurrent13.712.811.511.611.511.611.211.411.611.711.511.511.711.811.711.611.611.210.710.710.610.510.810.811.2

ed:SuperfundSites



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value737734767770776779720728734737745745746753752758767765746751758764734738749
Percentage of AccruedEnvironmentalLossContingenciesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NaturalGasProcessingPlant



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value636640679681687689639645649651659659659664664670678679666671678684655658665
Percentage of AccruedEnvironmentalLossContingenciesNoncurrent86.387.288.588.488.588.488.888.688.488.388.588.588.388.288.388.488.488.889.389.389.489.589.289.288.8

us-gaap:EnvironmentalRemediationSite, dei:LegalEntity

ed:OtherSuperfundSites, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value10093888890
Percentage of AccruedEnvironmentalLossContingenciesNoncurrent13.612.711.511.411.6

ed:SuperfundSites, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value657654684686693
Percentage of AccruedEnvironmentalLossContingenciesNoncurrent89.189.189.289.189.0

us-gaap:NaturalGasProcessingPlant, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value557561596598603
Percentage of AccruedEnvironmentalLossContingenciesNoncurrent75.676.477.777.777.4

us-gaap:DerivativeInstrumentRisk

us-gaap:AdditionalCollateralAggregateFairValue

ed:AdditionalCollateralAggregateFairValueDownBelowInvestmentGrade



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-06-302012-03-312011-12-312011-09-302011-06-30
Value1231591231404466172985291019998751069919214272857310519941142502277101225195143149
Percentage of AdditionalCollateralAggregateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:AdditionalCollateralAggregateFairValueDownOneLevel



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-03-312011-09-302011-06-30
Value3950183706021502316171118430915621129
Percentage of AdditionalCollateralAggregateFairValue31.731.414.626.40.09.10.06.917.60.022.816.217.314.717.04.015.66.31.45.95.750.07.719.5

us-gaap:DerivativeInstrumentRisk, dei:LegalEntity

ed:AdditionalCollateralAggregateFairValueDownBelowInvestmentGrade, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value10213492118
Percentage of AdditionalCollateralAggregateFairValue82.984.374.884.3

ed:AdditionalCollateralAggregateFairValueDownOneLevel, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value31411431
Percentage of AdditionalCollateralAggregateFairValue25.225.811.422.1

us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:AllowanceForDoubtfulAccountsReceivable

ed:OtherReceivables



Period End2020-03-312019-12-31
Value5.04.0
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0

us-gaap:TradeAccountsReceivable



Period End2020-03-312019-12-31
Value75.070.0
Percentage of AllowanceForDoubtfulAccountsReceivable1500.01750.0

us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, dei:LegalEntity

us-gaap:TradeAccountsReceivable, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-31
Value70.065.0
Percentage of AllowanceForDoubtfulAccountsReceivable1400.01625.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value7570676563626264636363636669758079858891969697969693959394948586878788848176
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value7065626058575759585865
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent93.392.992.592.392.191.991.992.292.192.194.2

us-gaap:AllowanceForDoubtfulOtherReceivablesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value5454756778889141315111111101110131210
Percentage of AllowanceForDoubtfulOtherReceivablesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value333363566713
Percentage of AllowanceForDoubtfulOtherReceivablesCurrent60.075.060.075.085.760.083.385.785.787.592.9

us-gaap:AssetRetirementObligationsNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value429425360427419450320320317314256252249246254249247242198193191188150147144143164162160159149147147145114112111109125122
Percentage of AssetRetirementObligationsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value366362301298295292296293290287227
Percentage of AssetRetirementObligationsNoncurrent85.385.283.669.870.464.992.591.691.591.492.3

us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets

ed:CopperMountainMesquiteSolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value637589596597601589
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets100.0100.0100.0100.0100.0100.0

ed:GreatValleySolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value332333342348347331
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets52.156.557.458.357.756.2

us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther

ed:CopperMountainMesquiteSolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value671822434533
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther100.0100.0100.0100.0100.0100.0

ed:GreatValleySolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value161719323317
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther23.994.486.474.473.351.5

us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities

ed:CopperMountainMesquiteSolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value671822434533
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities100.0100.0100.0100.0100.0100.0

ed:GreatValleySolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value161719323317
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities23.994.486.474.473.351.5

us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets

ed:CopperMountainMesquiteSolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value18112813110910997
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0

ed:GreatValleySolar



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value414047393618
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets22.731.235.935.833.018.6

us-gaap:CollateralAlreadyPostedAggregateFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value13425263426613681016861413743242345185511626460344068105
Percentage of CollateralAlreadyPostedAggregateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value12825202719010679663
Percentage of CollateralAlreadyPostedAggregateFairValue95.5100.076.979.473.10.076.998.595.092.6

us-gaap:CommercialPaper



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value12081692130011611435174113528691389577356103683610546017081199152911601245519800142515318301451122014001021539
Percentage of CommercialPaper100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value5971137930849108511921004550913150600
Percentage of CommercialPaper49.467.271.573.175.668.574.363.365.726.056.9

us-gaap:ConstructionInProgressGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value44630920316812416956659255055161577968768942171260724442540318711382108683629102160834004839396154372336
Percentage of ConstructionInProgressGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value443599505550500514350382472598
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value331477374403370392298315363454
Percentage of ContractWithCustomerAssetNet74.779.674.173.374.076.385.182.576.975.9

us-gaap:ContractWithCustomerLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value16172018192016134987
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerRefundLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value344346348350351351351349346
Percentage of ContractWithCustomerRefundLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value331334335337339339339337334
Percentage of ContractWithCustomerRefundLiabilityCurrent96.296.596.396.396.696.696.696.696.5

us-gaap:CreditDerivativeMaximumExposureUndiscounted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value1201281541281151061071026810380706362141191209212154166212148151141236164110146
Percentage of CreditDerivativeMaximumExposureUndiscounted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value786711131714828
Percentage of CreditDerivativeMaximumExposureUndiscounted5.86.23.95.59.612.315.913.711.827.2

us-gaap:CreditRiskDerivativesAtFairValueNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value232163112159553619601533914812811611311182187106526058783221731391952
Percentage of CreditRiskDerivativesAtFairValueNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value21014595137422494714031
Percentage of CreditRiskDerivativesAtFairValueNet90.589.084.886.276.466.747.478.391.579.5

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

us-gaap:DebtInstrumentFaceAmount

ed:A3.35DebenturesDue2030, us-gaap:UnsecuredDebt, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value600
Percentage of DebtInstrumentFaceAmount100.0

ed:A3.95DebenturesDue2050, us-gaap:UnsecuredDebt, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-31
Value1000
Percentage of DebtInstrumentFaceAmount166.7

dei:LegalEntity

us-gaap:DebtInstrumentUnamortizedDiscount

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value17036141142137321281331202726
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCreditsAndOtherLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value270279282245275299292273296
Percentage of DeferredCreditsAndOtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value233240236206236241240225242
Percentage of DeferredCreditsAndOtherLiabilitiesNoncurrent86.386.083.784.185.880.682.282.481.8

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-09-30
Value474350
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear100.0100.0

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:PensionPlansDefinedBenefit, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-09-30
Value434318
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear91.690.9

us-gaap:FairValueByAssetClass

us-gaap:DerivativeAssetFairValueGrossLiability

ed:DerivativeFinancialInstrumentsCurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value4382437142331365167783964605034413367
Percentage of DerivativeAssetFairValueGrossLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:DerivativeFinancialInstrumentsNonCurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value913765713185461631943573224541723
Percentage of DerivativeAssetFairValueGrossLiability225.0433.387.525.013.550.056.558.113.97.891.080.848.767.295.064.070.6131.751.534.3

us-gaap:DerivativeFinancialInstrumentsAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-09-302014-12-31
Value13161530422136494155128141581071341251608990
Percentage of DerivativeAssetFairValueGrossLiability325.0533.3187.5125.0113.5150.0156.5158.1113.9107.8191.0180.8148.7167.2268.0367.6390.2269.7134.3

us-gaap:FairValueByAssetClass, dei:LegalEntity

ed:DerivativeFinancialInstrumentsCurrentAssets, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value14619166
Percentage of DerivativeAssetFairValueGrossLiability350.0200.0237.566.742.9

ed:DerivativeFinancialInstrumentsNonCurrentAssets, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value812645
Percentage of DerivativeAssetFairValueGrossLiability200.0400.075.016.735.7

us-gaap:DerivativeFinancialInstrumentsAssets, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value2218252011
Percentage of DerivativeAssetFairValueGrossLiability550.0600.0312.583.378.6

us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType

us-gaap:DerivativeAssetMeasurementInput

srt:Maximum, ed:ElectricitySwaps, us-gaap:FairValueInputsLevel3, ed:MeasurementInputCommodityForwardCapacityPrice



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value8.758.97.754.834.856.38.8410.16
Percentage of DerivativeAssetMeasurementInput100.0100.0100.0100.0100.0100.0100.0100.0

srt:Maximum, ed:TransmissionCongestionContractsOrFinancialTransmissionRights, us-gaap:FairValueInputsLevel3, ed:MeasurementInputCommodityInterZonalForwardPriceCurve



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value3.57.034.292.95.454.8
Percentage of DerivativeAssetMeasurementInput40.090.788.859.861.747.2

srt:Minimum, ed:ElectricitySwaps, us-gaap:FairValueInputsLevel3, ed:MeasurementInputCommodityForwardCapacityPrice



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.10.090.450.70.751.01.72.05
Percentage of DerivativeAssetMeasurementInput1.11.05.814.515.515.919.220.2

srt:Minimum, ed:TransmissionCongestionContractsOrFinancialTransmissionRights, us-gaap:FairValueInputsLevel3, ed:MeasurementInputCommodityInterZonalForwardPriceCurve



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value-2.4-1.00.030.040.37-3.0
Percentage of DerivativeAssetMeasurementInput-27.4-12.90.60.84.2-29.5

us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, dei:LegalEntity

srt:Maximum, ed:ElectricitySwaps, us-gaap:FairValueInputsLevel3, ed:MeasurementInputCommodityForwardCapacityPrice, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value8.758.97.754.8
Percentage of DerivativeAssetMeasurementInput100.0100.0100.099.4

srt:Maximum, ed:TransmissionCongestionContracts, us-gaap:FairValueInputsLevel3, ed:MeasurementInputCommodityInterZonalForwardPriceCurve, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value2.13.14.113.13
Percentage of DerivativeAssetMeasurementInput24.034.853.064.8

srt:Minimum, ed:ElectricitySwaps, us-gaap:FairValueInputsLevel3, ed:MeasurementInputCommodityForwardCapacityPrice, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value0.360.150.450.7
Percentage of DerivativeAssetMeasurementInput4.11.75.814.5

srt:Minimum, ed:TransmissionCongestionContracts, us-gaap:FairValueInputsLevel3, ed:MeasurementInputCommodityInterZonalForwardPriceCurve, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value0.130.360.350.43
Percentage of DerivativeAssetMeasurementInput1.54.04.58.9

us-gaap:DerivativeAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312011-09-302010-09-302010-06-302009-12-31
Value5065505034584654464533631636931534532635041136179274268130
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet



Period End2020-03-312019-12-312019-09-302018-12-31
Value-330-183-187-27
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302018-12-31
Value-185-124-103-7
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet56.167.855.125.9

us-gaap:FairValueByAssetClass

us-gaap:DerivativeFairValueOfDerivativeAsset

ed:DerivativeFinancialInstrumentsCurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value61605137724345484683779371817578425947111
Percentage of DerivativeFairValueOfDerivativeAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:DerivativeFinancialInstrumentsNonCurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value171976614212691064631949583325571934
Percentage of DerivativeFairValueOfDerivativeAsset27.931.713.716.28.332.646.754.219.612.083.167.726.860.577.342.359.596.640.430.6

us-gaap:DerivativeFinancialInstrumentsAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-09-302014-12-31
Value7879584378576674559314115690130169135182105145
Percentage of DerivativeFairValueOfDerivativeAsset127.9131.7113.7116.2108.3132.6146.7154.2119.6112.0183.1167.7126.8160.5216.7321.4308.5223.4130.6

us-gaap:FairValueByAssetClass, dei:LegalEntity

ed:DerivativeFinancialInstrumentsCurrentAssets, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value4439422625
Percentage of DerivativeFairValueOfDerivativeAsset72.165.082.470.358.1

ed:DerivativeFinancialInstrumentsNonCurrentAssets, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value16176411
Percentage of DerivativeFairValueOfDerivativeAsset26.228.311.810.825.6

us-gaap:DerivativeFinancialInstrumentsAssets, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value6056483036
Percentage of DerivativeFairValueOfDerivativeAsset98.493.394.181.183.7

us-gaap:FairValueByLiabilityClass

us-gaap:DerivativeFairValueOfDerivativeLiability

ed:DerivativeFinancialInstrumentsCurrentLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value1671408997786141691096714115311713814312916914484242
Percentage of DerivativeFairValueOfDerivativeLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:DerivativeFinancialInstrumentsNonCurrentLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value2411221561524419264694431431368591111671281024866
Percentage of DerivativeFairValueOfDerivativeLiability144.387.1175.3156.756.431.163.466.786.264.2101.488.972.665.977.651.975.770.857.127.3

us-gaap:DerivativeFinancialInstrumentsLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-09-302014-12-31
Value4082622452491228067115203110284289202229296503389240308
Percentage of DerivativeFairValueOfDerivativeLiability244.3187.1275.3256.7156.4131.1163.4166.7186.2164.2201.4188.9172.6165.9229.5297.6270.1285.7127.3

us-gaap:FairValueByLiabilityClass, dei:LegalEntity

ed:DerivativeFinancialInstrumentsCurrentLiabilities, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value123100616631
Percentage of DerivativeFairValueOfDerivativeLiability73.771.468.568.050.8

ed:DerivativeFinancialInstrumentsNonCurrentLiabilities, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value122809010612
Percentage of DerivativeFairValueOfDerivativeLiability73.157.1101.1109.319.7

us-gaap:DerivativeFinancialInstrumentsLiabilities, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value24518015117243
Percentage of DerivativeFairValueOfDerivativeLiability146.7128.6169.7177.370.5

us-gaap:DerivativeFairValueOfDerivativeNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value-316-166-176-185-47-24-1-43-145-17-140-123-110-93-106-108-311-161-96-11326-239210513250-22-3021-90-195-331-249-115-121-150-261-436-363-266
Percentage of DerivativeFairValueOfDerivativeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value-174-107-92-117-25-68-36-136-15-86
Percentage of DerivativeFairValueOfDerivativeNet55.164.552.363.253.225.0-800.083.793.888.292.5

us-gaap:DerivativeLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value38122921919897665511712214332118311213778209121136159191287297234
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value1531237268465018407417706476777062906626323764744132531154756110198169101109117125160114
Percentage of DerivativeLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value998133412425428661266
Percentage of DerivativeLiabilitiesCurrent64.765.945.860.352.250.022.270.089.270.685.7

us-gaap:DerivativeLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value2281051471305116132885388374664052339239172424133645293226313451544830355277137131
Percentage of DerivativeLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value113658286326923763133
Percentage of DerivativeLiabilitiesNoncurrent49.661.955.866.262.737.569.282.189.481.682.5

us-gaap:FairValueByLiabilityClass

us-gaap:DerivativeLiabilityFairValueGrossAsset

ed:DerivativeFinancialInstrumentsCurrentLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value14171729321123293550718941617367797858139
Percentage of DerivativeLiabilityFairValueGrossAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:DerivativeFinancialInstrumentsNonCurrentLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value13169227913189560621952593436633191
Percentage of DerivativeLiabilityFairValueGrossAsset92.994.152.975.921.981.856.562.125.710.084.569.746.385.280.850.745.680.853.465.5

us-gaap:DerivativeFinancialInstrumentsLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-09-302014-12-31
Value2733265139203647445513115160113153182206128230
Percentage of DerivativeLiabilityFairValueGrossAsset192.9194.1152.9175.9121.9181.8156.5162.1125.7110.0184.5169.7146.3185.2228.4230.4264.1220.7165.5

us-gaap:FairValueByLiabilityClass, dei:LegalEntity

ed:DerivativeFinancialInstrumentsCurrentLiabilities, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value241928256
Percentage of DerivativeLiabilityFairValueGrossAsset171.4111.8164.786.254.5

ed:DerivativeFinancialInstrumentsNonCurrentLiabilities, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value9168206
Percentage of DerivativeLiabilityFairValueGrossAsset64.394.147.169.054.5

us-gaap:DerivativeFinancialInstrumentsLiabilities, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value3335364512
Percentage of DerivativeLiabilityFairValueGrossAsset235.7205.9211.8155.2109.1

us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeNonmonetaryNotionalAmount

ed:ElectricCapacityDerivative



Period End2020-03-312019-12-312019-09-302019-06-30
Value26614.028916.025054.019324.0
Percentage of DerivativeNonmonetaryNotionalAmount100.0100.0100.0100.0

ed:ElectricEnergyDerivative



Period End2020-03-312019-12-312019-09-302019-06-30
Value21242732
Percentage of DerivativeNonmonetaryNotionalAmount81470.686003.1111135.9166520.3

ed:NaturalGasDerivative



Period End2020-03-312019-12-312019-09-302019-06-30
Value260277277202
Percentage of DerivativeNonmonetaryNotionalAmount977698.1960809.21107191.31047585.4

ed:RefinedFuels



Period End2020-03-312019-12-312019-09-302019-06-30
Value10567
Percentage of DerivativeNonmonetaryNotionalAmount40399.819753.826822.139991.7

us-gaap:DerivativeInstrumentRisk, dei:LegalEntity

ed:ElectricCapacityDerivative, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value21900.019950.016800.08550.0
Percentage of DerivativeNonmonetaryNotionalAmount82.369.067.144.2

ed:ElectricEnergyDerivative, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value19222529
Percentage of DerivativeNonmonetaryNotionalAmount73578.177769.4101226.5152540.2

ed:NaturalGasDerivative, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value241258260187
Percentage of DerivativeNonmonetaryNotionalAmount905914.2892516.31039155.4972417.7

ed:RefinedFuels, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-30
Value10567
Percentage of DerivativeNonmonetaryNotionalAmount40399.819753.826822.139991.7

us-gaap:DerivativeInstrumentRisk, dei:LegalEntity

us-gaap:DerivativeNotionalAmount

us-gaap:InterestRateSwap, ed:CleanEnergyBusinesses



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value910919934829499
Percentage of DerivativeNotionalAmount100.0100.0100.0100.0100.0

us-gaap:DirectFinancingLeaseResidualValueOfLeasedAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value11222
Percentage of DirectFinancingLeaseResidualValueOfLeasedAsset100.0100.0100.0100.0100.0

us-gaap:DividendsPayableCurrentAndNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value12473624124736241246352312463523122811531110
Percentage of DividendsPayableCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

us-gaap:DueFromAffiliateCurrent

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value81732001312202143312138364109
Percentage of DueFromAffiliateCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

us-gaap:DueToAffiliateCurrent

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1313131517171819171010
Percentage of DueToAffiliateCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value116102115111109109109108106105105103102101101999897961001009597123979293939394889191909494941029091
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1059210410199999997969591
Percentage of EmployeeRelatedLiabilitiesCurrent90.590.290.491.090.890.890.889.890.690.590.1

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-13-16-44-46-19-13-10-431-20-103115-464131120
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-6-6-31-30-5-20024-14-611
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs46.237.570.565.226.315.4-0.0-0.066.7400.070.060.033.3100.0

us-gaap:FinanceLeaseLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value11222
Percentage of FinanceLeaseLiability100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.00.01000000.01000000.01000000.0
Percentage of FinanceLeaseLiability0.00.050.050.050.0

us-gaap:FinanceLeaseLiabilityPaymentsDue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value11222
Percentage of FinanceLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.00.01000000.01000000.01000000.0
Percentage of FinanceLeaseLiabilityPaymentsDue0.00.050.050.050.0

us-gaap:FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.00.01000000.01000000.01000000.0
Percentage of FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths0.00.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.00.01000000.01000000.01000000.0
Percentage of FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths0.00.0100.0100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0320.0350.0380.040.042
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0350.0410.0470.0510.053
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent109.4117.1123.7127.5126.2

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value15212610379532921191715121086555444445544444434333333
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ComputerSoftwareIntangibleAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1210875320
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization7.97.97.88.99.410.39.50.0

us-gaap:FiniteLivedIntangibleAssetsByMajorClass, dei:LegalEntity

us-gaap:ComputerSoftwareIntangibleAsset, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value110863
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization7.20.07.87.610.3

us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:ComputerSoftwareIntangibleAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value919395979810010294
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsByMajorClass, dei:LegalEntity

us-gaap:ComputerSoftwareIntangibleAsset, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value8788909295
Percentage of FiniteLivedIntangibleAssetsGross95.694.694.794.895.0

us-gaap:GuaranteeObligationsMaximumExposure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value191318311954196721992439199120122128207321622329219323702422254427052856257625292559254714181428150013311272883878859823795760760862834897859873880929
Percentage of GuaranteeObligationsMaximumExposure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ed:GuarantorObligationsTerm

ed:GuaranteeDurationFourToTenYears



Period End2020-03-312019-12-312019-09-30
Value225640449
Percentage of GuaranteeObligationsMaximumExposure11.835.023.0

ed:GuaranteeDurationGreaterThanTenYears



Period End2020-03-312019-12-312019-09-30
Value606246648
Percentage of GuaranteeObligationsMaximumExposure31.713.433.2

ed:GuaranteeDurationOneToThreeYears



Period End2020-03-312019-12-312019-09-30
Value1082945857
Percentage of GuaranteeObligationsMaximumExposure56.651.643.9

us-gaap:GuaranteeObligationsByNature

ed:ConEdisonTransmission



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value548573573672876114611481148114610471047104710471048
Percentage of GuaranteeObligationsMaximumExposure28.631.329.334.239.847.057.757.153.950.548.445.047.744.2

ed:FinancialAndPerformanceGuaranteeForCommodityTransactions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value671679724712709683659661663669700743732736783804838924885871958901881837888841782836826803764736707706808764805760755760
Percentage of GuaranteeObligationsMaximumExposure35.137.137.136.232.228.033.132.931.232.332.431.933.431.132.331.631.032.434.434.437.435.462.158.659.263.261.594.794.193.592.892.693.092.993.791.689.788.586.586.4

ed:FinancialAndPerformanceGuaranteeForRenewableElectricProductionProjects



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value624510587513544540114133196234287411286458463463409499302269211255
Percentage of GuaranteeObligationsMaximumExposure32.627.930.026.124.722.15.76.69.211.313.317.613.019.319.118.215.117.511.710.68.210.0

ed:FinancialAndPerformanceGuaranteeOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value706970707070707012312312812812812812875757530303030303131312731364043433738385460678385
Percentage of GuaranteeObligationsMaximumExposure3.73.83.63.63.22.93.53.55.85.95.95.55.85.45.32.92.82.61.21.21.21.22.12.22.12.32.13.54.14.75.25.44.95.04.46.56.77.89.59.7

us-gaap:GuaranteeObligationsByNature, ed:GuarantorObligationsTerm

ed:ConEdisonTransmission, ed:GuaranteeDurationFourToTenYears



Period End2020-03-312019-12-312019-09-30
Value1860411
Percentage of GuaranteeObligationsMaximumExposure9.70.021.0

ed:ConEdisonTransmission, ed:GuaranteeDurationGreaterThanTenYears



Period End2020-03-312019-12-312019-09-30
Value01860
Percentage of GuaranteeObligationsMaximumExposure0.010.20.0

ed:ConEdisonTransmission, ed:GuaranteeDurationOneToThreeYears



Period End2020-03-312019-12-312019-09-30
Value362387162
Percentage of GuaranteeObligationsMaximumExposure18.921.18.3

ed:FinancialAndPerformanceGuaranteeForCommodityTransactions, ed:GuaranteeDurationFourToTenYears



Period End2020-03-312019-12-312019-09-30
Value3020929
Percentage of GuaranteeObligationsMaximumExposure1.611.41.5

ed:FinancialAndPerformanceGuaranteeForCommodityTransactions, ed:GuaranteeDurationGreaterThanTenYears



Period End2020-03-312019-12-312019-09-30
Value20951194
Percentage of GuaranteeObligationsMaximumExposure10.92.89.9

ed:FinancialAndPerformanceGuaranteeForCommodityTransactions, ed:GuaranteeDurationOneToThreeYears



Period End2020-03-312019-12-312019-09-30
Value432419501
Percentage of GuaranteeObligationsMaximumExposure22.622.925.6

ed:FinancialAndPerformanceGuaranteeForRenewableElectricProductionProjects, ed:GuaranteeDurationFourToTenYears



Period End2020-03-312019-12-312019-09-30
Value94319
Percentage of GuaranteeObligationsMaximumExposure0.523.50.5

ed:FinancialAndPerformanceGuaranteeForRenewableElectricProductionProjects, ed:GuaranteeDurationGreaterThanTenYears



Period End2020-03-312019-12-312019-09-30
Value3979454
Percentage of GuaranteeObligationsMaximumExposure20.80.523.2

ed:FinancialAndPerformanceGuaranteeForRenewableElectricProductionProjects, ed:GuaranteeDurationOneToThreeYears



Period End2020-03-312019-12-312019-09-30
Value21870124
Percentage of GuaranteeObligationsMaximumExposure11.43.86.3

ed:FinancialAndPerformanceGuaranteeOther, ed:GuaranteeDurationOneToThreeYears



Period End2020-03-312019-12-312019-09-30
Value706970
Percentage of GuaranteeObligationsMaximumExposure3.73.83.6

us-gaap:IncomeTaxesReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value2120103049492927586446505379661515166300224
Percentage of IncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:InterestPayableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value238153224154226129210139211143209132204150202139190136180131180132164169210249324277327153206179212160212155206155153156
Percentage of InterestPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value188113180110184112180112181113111
Percentage of InterestPayableCurrent79.073.980.471.481.486.885.780.685.879.074.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value13501362132013271334
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value777782824826830
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue57.657.462.462.262.2

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value983992966970973
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value499501550551553
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive50.850.556.956.856.8

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value7272696868
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value5555535353
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive76.476.476.877.977.9

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value7272696869
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value5454535353
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour75.075.076.877.976.8

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value7273697071
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value5455535455
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree75.075.376.877.177.5

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value7475737474
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value5657575758
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo75.776.078.177.078.4

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value7778747779
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value5960585858
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths76.676.978.475.373.4

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value474488442451459
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value170177180185191
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount35.936.340.741.041.6

us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtFairValue

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value2151619973194511946818962181451660817040160211602915338153401486214774
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value2338122738224122162620304187401736917944173881814717195170521620616093
Percentage of LongTermDebtFairValue108.7113.8115.2111.1107.1103.3104.6105.3108.5113.2112.1111.2109.0108.9

us-gaap:FairValueByMeasurementBasis, dei:LegalEntity

us-gaap:CarryingReportedAmountFairValueDisclosure, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value1654414964143741437314151
Percentage of LongTermDebtFairValue76.974.973.973.878.0

us-gaap:EstimateOfFairValueFairValueDisclosure, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value1829917505170471633014685
Percentage of LongTermDebtFairValue85.087.687.683.980.9

us-gaap:StatementScenario, us-gaap:LongTermContractForPurchaseOfElectricPower, us-gaap:PublicUtility, dei:LegalEntity

us-gaap:LongTermDebtPercentageBearingVariableInterestRate

srt:ScenarioForecast, ed:RatePlanforYear1, us-gaap:ElectricTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2022-12-31
Value0.0463
Percentage of LongTermDebtPercentageBearingVariableInterestRate100.0

srt:ScenarioForecast, ed:RatePlanforYear1, us-gaap:GasTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2022-12-31
Value0.0463
Percentage of LongTermDebtPercentageBearingVariableInterestRate100.0

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

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



Period End2022-12-31
Value0.0463
Percentage of LongTermDebtPercentageBearingVariableInterestRate100.0

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



Period End2022-12-31
Value0.0463
Percentage of LongTermDebtPercentageBearingVariableInterestRate100.0

us-gaap:LossContingenciesByNatureOfContingency, us-gaap:PublicUtility, us-gaap:RegulatoryAgency, dei:LegalEntity

us-gaap:LossContingencyAccrualAtCarryingValue

ed:ViolationsOfGasOperatorQualificationPerformanceAndInspectionRequirements, us-gaap:GasTransmission, ed:NYSPSC, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-31
Value510
Percentage of LossContingencyAccrualAtCarryingValue100.0100.0

us-gaap:MarginDepositAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value897647766125797121618261722372782251734313337
Percentage of MarginDepositAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value786646666117
Percentage of MarginDepositAssets87.588.985.7100.0100.085.785.7100.0100.091.7100.0

us-gaap:OperatingLeaseLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value876874878876875
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value607605644641639
Percentage of OperatingLeaseLiability69.369.273.373.273.0

us-gaap:OperatingLeaseLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value77655955500
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.00.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value59544946410
Percentage of OperatingLeaseLiabilityCurrent76.683.183.183.682.00.0

us-gaap:OperatingLeaseLiabilityNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value7998098198218250
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.00.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value5485515955955980
Percentage of OperatingLeaseLiabilityNoncurrent68.668.172.672.572.50.0

us-gaap:OtherAssetsMiscellaneousNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value129134123127134153153152199148134128147136352288198186242223215223225
Percentage of OtherAssetsMiscellaneousNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value53514151566969711328769
Percentage of OtherAssetsMiscellaneousNoncurrent41.138.133.340.241.845.145.146.766.358.850.7

us-gaap:OtherReceivables



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value188184169148267285263264200160181165204195165247362304232255149133198239210240257310213228216228249303297254331300408379
Percentage of OtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value118120104891822111671661039281
Percentage of OtherReceivables62.865.261.560.168.274.063.562.951.557.541.5

us-gaap:PrepaidExpenseCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value739260707222635187665214600178592195553159580192550177731307470163644146489136521119422159433151431145469147558341131131
Percentage of PrepaidExpenseCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value651178616150555117556125525108100
Percentage of PrepaidExpenseCurrent88.168.587.167.687.462.683.658.487.560.762.9

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value1053010322103291014999539769958093859229906389048738863385418451830581748044794078267702761474827342720870726952683767166573638862636153605159615870589183856065412
Percentage of PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value96829490950493339150898888018622847683217836
Percentage of PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation91.991.992.092.091.992.091.991.991.891.891.7

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentCommon



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3606356234923428338433313205316730343008289128442717271926572614262526222546251724792465243724342394233623012295229123022253209320931960190719171911
Percentage of PublicUtilitiesPropertyPlantAndEquipmentCommon100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value33143271320131403100305629322896277527532490
Percentage of PublicUtilitiesPropertyPlantAndEquipmentCommon91.991.891.791.691.691.791.591.491.591.591.6

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value2005193719631898201419781901171416101605141512121169117512861148111510031106996947103189999510761393145012791209102789810489201241140412991253145814741422
Percentage of PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value18741812184317801894185018031622149915021104
Percentage of PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress93.593.593.993.894.093.594.894.693.193.694.0

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302009-12-31
Value40192397513918338616380523758036980363843572235273344273393733441330453235831888315053113330476300452962329326288082844928080277952734526954265962630125825255842521624965231862300522728237942159821017
Percentage of PublicUtilitiesPropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value3783437412368823634535814353703482534261336343320531115
Percentage of PublicUtilitiesPropertyPlantAndEquipmentNet94.194.194.194.194.194.194.294.294.294.194.2

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantInService



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value48717481364754946867459914537144659440554334142731419164146340905404113952339045385643817437310368753637835909353913479634212334743284732512321033184731315307993044929775291472887528144
Percentage of PublicUtilitiesPropertyPlantAndEquipmentPlantInService100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value4564245090445434389843070425084182341261406114002437847
Percentage of PublicUtilitiesPropertyPlantAndEquipmentPlantInService93.793.793.793.793.693.793.693.793.793.793.7

us-gaap:PublicUtility

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution

us-gaap:ElectricTransmission



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value32186318663158431245307043037830077297022931528994285952833928024277472723926961266162635825998257412541025091247762433823955234502304122823225472237622019217572152021105207142050619851
Percentage of PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GasTransmission



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value103001010798799614932991008877869085128256797278287718752472537102696768586466632962236102594558055661549453885288519751205009493048214727456645064344
Percentage of PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution32.031.731.330.830.430.029.529.329.028.527.927.627.527.126.626.326.226.024.924.624.524.324.023.923.623.423.423.223.022.922.722.722.422.422.022.021.9

us-gaap:SteamPlant



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2625260125942580257425622500249624802473245824522446242123742368235623362300228822662251223322192202219421172106206820492034201920151983196019462038
Percentage of PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution8.28.28.28.38.48.48.38.48.58.58.68.78.78.78.78.88.98.98.88.98.99.09.09.19.29.49.29.29.29.29.29.39.49.49.59.510.3

us-gaap:PublicUtility, dei:LegalEntity

us-gaap:ElectricTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value3029229989297362941628595
Percentage of PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution94.194.194.194.194.1

us-gaap:GasTransmission, ed:ConsolidatedEdisonCompanyofNewYorkInc.