NEE


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue
dei:LegalEntity
us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding
dei:LegalEntity
us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:CommonStockSharesAuthorized

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:InterestExpense

us-gaap:OperatingExpenses
dei:LegalEntity
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingIncomeLoss
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:InterestExpense

us-gaap:OtherNonoperatingIncomeExpense
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
dei:LegalEntity

us-gaap:NonoperatingIncomeExpense
dei:LegalEntity

us-gaap:IncomeTaxExpenseBenefit
dei:LegalEntity

us-gaap:ProfitLoss
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:NetIncomeLoss
dei:LegalEntity
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:Assets
dei:LegalEntity
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:Liabilities
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity

us-gaap:LiabilitiesAndStockholdersEquity
dei:LegalEntity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent
dei:LegalEntity

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity

us-gaap:AccountsReceivableNetCurrent
dei:LegalEntity

us-gaap:InventoryNet
dei:LegalEntity

us-gaap:OtherAssetsCurrent
dei:LegalEntity

us-gaap:PropertyPlantAndEquipmentNet
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:Goodwill
dei:LegalEntity

us-gaap:OtherAssetsNoncurrent
dei:LegalEntity

us-gaap:LiabilitiesCurrent
dei:LegalEntity

us-gaap:LongTermDebtCurrent
dei:LegalEntity

us-gaap:OtherLiabilitiesCurrent
dei:LegalEntity

us-gaap:LiabilitiesNoncurrent
dei:LegalEntity

us-gaap:LongTermDebtNoncurrent
dei:LegalEntity
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent
dei:LegalEntity

us-gaap:StockholdersEquity

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

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock
dei:LegalEntity

us-gaap:RetainedEarningsAccumulatedDeficit
dei:LegalEntity

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:MinorityInterest

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

us-gaap:ProfitLoss
dei:LegalEntity
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfLongTermDebt
dei:LegalEntity

us-gaap:RepaymentsOfLongTermDebt
dei:LegalEntity

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends

us-gaap:RepaymentsOfLongTermDebt
dei:LegalEntity
us-gaap:DebtInstrument, dei:LegalEntity
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:SubsequentEventType

us-gaap:EffectiveIncomeTaxRateContinuingOperations
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
dei:LegalEntity

nee:AOCIImpactofNEPDeconsolidation
us-gaap:StatementEquityComponents

nee:CapitalExpendituresOfPublicUtility
dei:LegalEntity

nee:ComprehensiveIncomeLossNetofTaxandDeconsolidationIncludingPortionAttributabletoNoncontrollingInterest

nee:CostRecoveryClausesAndFranchiseFees
dei:LegalEntity

nee:DecreaseInJointVentureInvestmentsAcquisition

nee:DepreciationAndAmortizationExcludingNuclearFuel
dei:LegalEntity
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
nee:DisposalGroupNotDiscontinuedOperationGainLossOnDisposalNetOfTax

nee:DisposalGroupNotDiscontinuedOperationImpactonDisposal
us-gaap:StatementEquityComponents

nee:DisposalGroupNotDiscontinuedOperationImpactonDisposaltax

nee:EffectiveIncomeTaxRateReconciliationProductionAndInvestmentTaxCredits
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique, nee:FairValueInputsTransactionType, nee:SignificantUnobservableInputs
nee:FairValueInputsExpectedRates
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique, nee:FairValueInputsTransactionType, nee:SignificantUnobservableInputs
nee:FairValueInputsOfferedQuotesPricePerEnergyUnit
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
nee:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInRegulatoryAssetsAndLiabilities
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
nee:FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
nee:FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInOperatingRevenues
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
nee:FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInOperatingRevenues

nee:FuelPurchasedPowerAndInterchangeExpense
dei:LegalEntity
dei:LegalEntity
nee:GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities

nee:IncreaseInPropertyPlantAndEquipmentAcquisition

nee:IndependentPowerInvestments

nee:InterestExpenseAggregateExpenses
dei:LegalEntity

nee:InterestIncome
us-gaap:InvestmentType
nee:Marketablesecuritiesunrealizedgainlossrecognizedduringtheperiodonsecuritiesstillheld
us-gaap:InvestmentType, dei:LegalEntity
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity
nee:NaturalGasAndOrOilElectricGeneratingFacilityCapacity

nee:NuclearFuelAndOtherAmortization
dei:LegalEntity
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType, dei:LegalEntity
nee:NumberOfGenerationFacilitiesSold

nee:OtherCapitalExpenditures

nee:OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeNetOfTax

nee:OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeTax

nee:OtherThanTemporaryImpairmentLossesOnSecuritiesHeldInNuclearDecommissioningFunds

nee:PaymentsToAcquireBusinessesGrossAndRelatedCapitalExpenditures
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
nee:PlannedNewGenerationToBeAddedover5Years
us-gaap:StatementEquityComponents
nee:PremiumOnPubliclyTradedEquityUnitsKnownAsCorporateUnits
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity
nee:SolarGeneratingFacilityCapability

us-gaap:AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease
us-gaap:StatementEquityComponents
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesGrossRealizedGains
us-gaap:FinancialInstrument, dei:LegalEntity
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses
us-gaap:FinancialInstrument, dei:LegalEntity

us-gaap:CapitalExpendituresIncurredButNotYetPaid
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
dei:LegalEntity

us-gaap:CommonStockDividendsPerShareCashPaid

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

us-gaap:DepreciationAndAmortization
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:Position
us-gaap:DerivativeNonmonetaryNotionalAmountEnergyMeasure
us-gaap:DerivativeInstrumentRisk, us-gaap:Position, dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:Position
us-gaap:DerivativeNonmonetaryNotionalAmountVolume

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
us-gaap:StatementEquityComponents
us-gaap:DividendsCommonStock

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential

us-gaap:EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense

us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization
dei:LegalEntity

us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments
dei:LegalEntity

us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
dei:LegalEntity

us-gaap:EquityMethodInvestmentDividendsOrDistributions
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity
nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GainLossOnInvestments

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncreaseDecreaseInOtherCurrentAssets
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities
dei:LegalEntity
us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:InterestAndFeeIncomeOtherLoans

us-gaap:NetIncomeLossAttributableToParentDiluted
us-gaap:StatementEquityComponents
us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherOperatingActivitiesCashFlowStatement
dei:LegalEntity

us-gaap:PaymentsForProceedsFromNuclearFuel
dei:LegalEntity

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
dei:LegalEntity
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:PaymentsToInvestInDecommissioningFund
dei:LegalEntity
dei:LegalEntity
us-gaap:ProceedsFromContributionsFromParent
us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:ProceedsFromDecommissioningFund
dei:LegalEntity

us-gaap:ProceedsFromOtherShortTermDebt

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromRepaymentsOfCommercialPaper
dei:LegalEntity

us-gaap:ProceedsFromRepaymentsOfRelatedPartyDebt
us-gaap:FinancialInstrument
us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
us-gaap:FinancialInstrument, dei:LegalEntity

us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
dei:LegalEntity

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent

us-gaap:RegulatedAndUnregulatedOperatingRevenue
dei:LegalEntity
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
dei:LegalEntity
us-gaap:RelatedPartyTransactionAmountsOfTransaction
us-gaap:ConsolidationItems, dei:LegalEntity

us-gaap:RepaymentsOfOtherShortTermDebt
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityOther

us-gaap:TaxesExcludingIncomeAndExciseTaxes
dei:LegalEntity

us-gaap:UnrealizedGainLossOnDerivativesAndCommodityContracts

us-gaap:UtilitiesOperatingExpenseMaintenanceAndOperations
dei:LegalEntity

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

dei:EntityCommonStockSharesOutstanding

nee:AccruedInterestAndTaxes
dei:LegalEntity

nee:AccumulatedDepreciationAndAmortization

nee:AccumulatedOtherComprehensiveIncomeLossNoncontrollingInterestAndParentNetofTax
us-gaap:StatementEquityComponents

nee:AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBbbOrBaa2

nee:AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBelowInvestmentGrade
dei:LegalEntity

nee:AdditionalCollateralAggregateFairValueDueToOtherFinancialMeasures
dei:LegalEntity
dei:LegalEntity
nee:AmountOfSublimitForNonNuclearPerilsPerOccurrencePerSiteUnderNuclearInsuranceMutualCompaniesForPropertyDamageDecontaminationAndPrematureDecommissioningRisks

nee:ElectricUtilityPlantInServiceAndOtherProperty
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType, dei:LegalEntity
nee:GeneratingFacilityCapacity
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities
nee:InvestmentsInSpecialPurposeEntities
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity

nee:LettersOfCreditAlreadyPostedAggregateFairValue
us-gaap:FairValueByMeasurementBasis
nee:LongTermDebtIncludingCurrentMaturitiesFairValueAndCarryingValue
us-gaap:FairValueByMeasurementBasis, dei:LegalEntity

nee:NuclearFuel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
nee:OtherInvestmentsDebtSecuritiesfairvaluedisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
nee:OtherInvestmentsEquitySecuritiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
nee:OtherInvestmentsFinancialInstrumentsFairValueDisclosure
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
nee:PlannedCapitalExpendituresAFUDCFifthYear
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
nee:PlannedCapitalExpendituresAFUDCFourthYear
dei:LegalEntity
nee:PlannedCapitalExpendituresFifthYear
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
dei:LegalEntity
nee:PlannedCapitalExpendituresFourthYear
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
dei:LegalEntity
nee:PlannedCapitalExpendituresRemainderCurrentYear
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
dei:LegalEntity
nee:PlannedCapitalExpendituresSecondYear
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
dei:LegalEntity
nee:PlannedCapitalExpendituresThirdYear
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
nee:PlannedGenerationCapitalExpendituresAFUDCRemainderCurrentYear
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
nee:PlannedGenerationCapitalExpendituresAFUDCSecondYear
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
nee:PlannedGenerationCapitalExpendituresAFUDCThirdYear

nee:PotentialRetrospectiveAssessmentLimitedInsuranceCoveragePerOccurrencePerSiteNuclearInsuranceMutualCompaniesPropertyDamageDecontaminationAndPrematureDecommissioningRisks
dei:LegalEntity
nee:InsuranceByNuclearPowerPlant
nee:PotentialRetrospectiveAssessmentsApproximateRecoveryOfProportionateShareFromMinorityInterestsUnderNuclearInsuranceMutualCompanies
nee:InsuranceByNuclearPowerPlant
nee:PotentialRetrospectiveAssessmentsApproximateRecoveryOfProportionateShareFromMinorityInterestsUnderSecondaryFinancialProtectionSystem

nee:PotentialRetrospectiveAssessmentsUnderSecondaryFinancialProtectionSystem
dei:LegalEntity

nee:PotentialRetrospectiveAssessmentsUnderSecondaryFinancialProtectionSystemPayablePerIncidentPerYear
dei:LegalEntity
us-gaap:Range, nee:EquityUnits
nee:PricePerShareofStockPurchaseContract
dei:LegalEntity
nee:PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross
dei:LegalEntity, us-gaap:StatementScenario
nee:RenewableEnergyAssetsPowerGenerationCapacity
dei:LegalEntity
nee:RequiredCapacityAndOrMinimumPaymentsAfterFifthYear
us-gaap:CounterpartyName, dei:LegalEntity
us-gaap:CounterpartyName, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased, dei:LegalEntity
dei:LegalEntity
nee:RequiredCapacityAndOrMinimumPaymentsFifthYear
dei:LegalEntity
nee:RequiredCapacityAndOrMinimumPaymentsFourthYear
us-gaap:CounterpartyName, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased, dei:LegalEntity
dei:LegalEntity
nee:RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear
us-gaap:CounterpartyName, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased, dei:LegalEntity
dei:LegalEntity
nee:RequiredCapacityAndOrMinimumPaymentsSecondYear
us-gaap:CounterpartyName, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased, dei:LegalEntity
dei:LegalEntity
nee:RequiredCapacityAndOrMinimumPaymentsThirdYear

nee:Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeassets

nee:Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeliabilities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
nee:SpecialUseFundsCorporateDebtSecuritiesFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
nee:SpecialUseFundsEquitySecuritiesFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:FairValueByMeasurementBasis
nee:SpecialUseFundsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, dei:LegalEntity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
nee:SpecialUseFundsMortgageBackedSecuritiesFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
nee:SpecialUseFundsOtherDebtSecuritiesFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity

nee:SpecialUseFundsStormFundAssets
dei:LegalEntity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
nee:SpecialUseFundsUsGovernmentAndMunicipalBondsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
nee:EquityUnits
nee:StatedAmountOfEachEquityUnit
dei:LegalEntity
nee:TotalNumberOfConsolidatedVariableInterestEntities
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity
dei:LegalEntity
nee:TotalPlannedCapitalExpenditures
nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity
nee:VariableInterestEntitiesNumberofEntities

us-gaap:AccountsPayableCurrentAndNoncurrent
dei:LegalEntity

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
dei:LegalEntity

us-gaap:AssetRetirementObligationsNoncurrent
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, nee:FairValueInputsTransactionType
us-gaap:AssetsFairValueDisclosure
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique, nee:FairValueInputsTransactionType
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument, dei:LegalEntity
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument, dei:LegalEntity

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
dei:LegalEntity
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
us-gaap:FinancialInstrument, dei:LegalEntity

us-gaap:CapitalizationLongtermDebtAndEquity
dei:LegalEntity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity

us-gaap:CollateralAlreadyPostedAggregateFairValue

us-gaap:CommercialPaper
dei:LegalEntity

us-gaap:ConstructionInProgressGross

us-gaap:ConstructionPayableCurrent
dei:LegalEntity

us-gaap:ContractWithCustomerLiabilityCurrent
dei:LegalEntity

us-gaap:DecommissioningFundInvestments
dei:LegalEntity

us-gaap:DecommissioningTrustAssetsAmount
dei:LegalEntity

us-gaap:DeferredIncomeTaxLiabilitiesNet
dei:LegalEntity

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity

us-gaap:DerivativeAssets
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, dei:LegalEntity
us-gaap:HedgingDesignation

us-gaap:DerivativeAssetsCurrent
us-gaap:BalanceSheetLocation, dei:LegalEntity

us-gaap:DerivativeAssetsNoncurrent

us-gaap:DerivativeCollateralObligationToReturnCash

us-gaap:DerivativeCollateralRightToReclaimCash
us-gaap:BalanceSheetLocation
us-gaap:DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, dei:LegalEntity
us-gaap:HedgingDesignation

us-gaap:DerivativeLiabilities
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, dei:LegalEntity
us-gaap:HedgingDesignation

us-gaap:DerivativeLiabilitiesCurrent
us-gaap:BalanceSheetLocation, dei:LegalEntity

us-gaap:DerivativeLiabilitiesNoncurrent
us-gaap:BalanceSheetLocation
us-gaap:DerivativeLiabilityCollateralRightToReclaimCashOffset
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity

us-gaap:DerivativeNetLiabilityPositionAggregateFairValue
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:Position
us-gaap:DerivativeNonmonetaryNotionalAmount
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, dei:LegalEntity
us-gaap:DisposalGroupIncludingDiscontinuedOperationConsideration
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType, dei:LegalEntity
us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DueFromRelatedPartiesCurrent
us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DueFromRelatedPartiesNoncurrent
us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty, dei:LegalEntity
us-gaap:DueToRelatedPartiesCurrentAndNoncurrent

us-gaap:EquityMethodInvestments
us-gaap:BalanceSheetLocation, dei:LegalEntity

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, nee:FairValueInputsTransactionType
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:ValuationTechnique, nee:FairValueInputsTransactionType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass
nee:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:NoncontrollingInterestInVariableInterestEntity

us-gaap:OtherAssets
dei:LegalEntity

us-gaap:OtherReceivablesNetCurrent
dei:LegalEntity

us-gaap:OtherShortTermBorrowings
dei:LegalEntity
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
dei:LegalEntity
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
dei:LegalEntity
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentFuel
dei:LegalEntity
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentNet

us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount

us-gaap:RegulatoryAssetsCurrent
dei:LegalEntity

us-gaap:RegulatoryAssetsNoncurrent
dei:LegalEntity

us-gaap:RegulatoryLiabilityCurrent
dei:LegalEntity

us-gaap:RegulatoryLiabilityNoncurrent
dei:LegalEntity

us-gaap:RestrictedCashAndCashEquivalents
dei:LegalEntity
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity
us-gaap:BalanceSheetLocation
us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
us-gaap:BalanceSheetLocation, dei:LegalEntity
dei:LegalEntity
us-gaap:UnbilledContractsReceivable

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CommonStockValue █████████▁▁▁▁▁▁▁▁▁▁▁▁555555555444444444444NANANA4NANANA
 us-gaap:CommonStockSharesIssued dei:LegalEntity nee:FloridaPowerLightCompany███████▁█1000.01000.01000.01000.01000.01000.01000.00.01000.0NANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockSharesOutstanding ███▇▇▇▇▆▆▂▂▂▂▂▂▁▁489489489479479478478472471431425425424423423417416NANANA421NANANANANANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock███▄▄▄▄▁▁489489489479479478478472471NANANA424NANANA416NANANA421NANANA414NANANA
 us-gaap:CommonStockSharesAuthorized dei:LegalEntity nee:FloridaPowerLightCompany▄▄▄▄▄▄▄▄▄000000000NANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 491NA486482481NA477475474426424423NA421417414NA419419418NA413411410NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 489NA481478478NA473471470423421421NA419415412NA417416415NA410408407NANANANA
us-gaap:EarningsPerShareBasic ▁▂▂▃▂▁▂▂█▂▂▁▁▁▂▁▂▁▂▁▁▂▁▂▁▂▁▁0.862.01.822.581.420.882.131.699.411.651.450.651.020.991.461.121.60.981.390.640.641.751.021.360.861.320.920.9
us-gaap:EarningsPerShareDiluted ▁▂▂▃▂▁▂▂█▂▂▁▁▁▂▁▂▁▂▁▁▂▁▂▁▂▁▁0.861.991.812.561.410.882.11.649.321.641.440.641.020.981.451.111.590.971.380.640.631.741.011.360.851.310.910.9
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax ▄▆█▆▄▆▅▂▂▆▄▂▂▄▃▂▄▆▄▁▂▇▃▃▃▆▄▃3900430049004500380045004100350033004394383332793375384336673371386443823961313434134691359136223655447338113705
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax dei:LegalEntity nee:FloridaPowerLightCompany2500NANANA2600NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingExpenses ▁▇█▄▃▄▅▂▂▄▂▂263237113979322329403275344829072816320928522845NA309426452528NA347130542706NA356628822683NANANANA
 us-gaap:OperatingExpenses dei:LegalEntity nee:FloridaPowerLightCompany▁▆█▆▂▇█▄▃162523082518230417612327248219861912NANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingExpenses us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:FloridaPowerLightCompany▁▆█▆▂▇█▄▃162523082518230417612327248219861912NANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingExpenses us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:GulfPowerSegment▁▆█▄▁270315332298271NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingExpenses us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:NexteraEnergyResources▃██▁▅▅▆▅▅70611011084584864905924877861NANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingIncomeLoss █▃▆▇▄▄▃▄▄▄▃▁▂▂▄▃▄▃▃▁▁▄▂▃▂▃▂▂19818781593174711351107970116210471185981434732749102284311329119074284691125709939557849605583
 us-gaap:OperatingIncomeLoss dei:LegalEntity nee:FloridaPowerLightCompany▇▁█▆▆▁▇▇▃915617973854857609917922708NANANANANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▃█▄▅▄▆▃▃▁▂█▁102412161418111069245NA-27-3-1NA472NA5-29-2NANANANA
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▁▇▇██▃█▆▃▇▃▅-3531810-21100-206-23-9NA3-36NA-192NANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▁▂▂▃▂▁▂▂█▂▂▁731036856126368027210699315080995821252NA569850618NA565727236NA960494NANANANANA
 us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest dei:LegalEntity nee:FloridaPowerLightCompany▇▁█▆▆▁▇▇▃779483834714744506806802596NANANANANANANANANANANANANANANANANANANA
us-gaap:NonoperatingIncomeExpense ▁▃▂▃▃▂▃▃█▃▃▃-1908159-737-484-455-82999-2314033-190-160-182NA-180-172-225NA-346-180-192NA-165-215NANANANANA
 us-gaap:NonoperatingIncomeExpense dei:LegalEntity nee:FloridaPowerLightCompany▂▂▁▁▆█▆▅▆-136-134-139-140-113-102-111-120-112NANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▁▃▂▃▂▂▃▃█▄▃▃-2351925812474-291262301249297211168NA154243157NA158147-32NA24077214NANANANA
 us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity nee:FloridaPowerLightCompany▆▃▇▁▇▄▇█▄137831515115699152176112NANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▂▃▃▃▂▂▃▂█▂▂▁30884479811396063149437013831698610-34NANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss dei:LegalEntity nee:FloridaPowerLightCompany▇▁██▆▁▇▇▃642400683663588407654626484NANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:FloridaPowerLightCompany642NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:GulfPowerSegment40NANANA37NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:Parent421NA879123468040910057814428NANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings421NA879123468040910057814428NANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents,dei:LegalEntity us-gaap:RetainedEarnings,nee:FloridaPowerLightCompany642NANANA588NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▁▂▂▃▁▁▂▂█▂▁▁398987889125665637910228004467718644391NA386511521NA178493304NA718310544NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▇▆▇▇▇▇▇▇▁█-119-130-81-95-74-108-64-94-5970NANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▁▂▂▃▂▁▂▂█▂▂▁▁▁▂▁▂▁▂▁▁▂▁▁▁▁▁▁421975879123468042210077954428698610272429415607461667407580268263720417556349533370364
 us-gaap:NetIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:NexteraEnergyResources▁▁▁▂▁▁▁▁█3184773676613012502142743926NANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▇▆▇▇▇▇▇▇▁█-113-131-81-95-74-108-64-94-5970NANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Assets ██▇▇▇▆▆▅▅▂▂▂▂▂▂▂▁▁▁▁▁▁12063711769111422211055210902910370298603954909428467166652176384364439620496039059207571885658554557532575299452994NANA48458NANANA
 us-gaap:Assets dei:LegalEntity nee:FloridaPowerLightCompany█▇▆▅▄▃▃▂▁583175718856165552635432453484529785161150895NANANANANANANANANANANANANANANANANANANA
 us-gaap:Assets us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:FloridaPowerLightCompany█▇▆▅▄▃▃▂▁583175718856165552635432453484529785161150895NANANANANANANANANANANANANANANANANANANA
 us-gaap:Assets us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:NexteraEnergyResources██▄▃▃▂▂▁▁514555151646299452304452643530436814205242171NANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities nee:InvestmentsByConsolidatedAndNonconsolidatedEntities us-gaap:VariableInterestEntityPrimaryBeneficiary█▁5629NANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities nee:InvestmentsByConsolidatedAndNonconsolidatedEntities,dei:LegalEntity nee:PhotovoltaicSolarFacility,nee:IndirectSubsidiaryofNextEraEnergyResources█▁635598NANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities nee:InvestmentsByConsolidatedAndNonconsolidatedEntities,dei:LegalEntity nee:VariableInterestEntitiesGasAndOilPrimaryBeneficiary,nee:NexteraEnergyResources▁█2325NANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities nee:InvestmentsByConsolidatedAndNonconsolidatedEntities,dei:LegalEntity nee:VariableInterestEntitiesWindandSolarPrimaryBeneficiaryMember,nee:NexteraEnergyResources▁█600800NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesAndStockholdersEquity ██▇▇▇▆▆▅▅▂▂▂▂▂▂▂▁▁▁▁▁120637117691114222110552109029103702986039549094284671666521763843644396204960390592075718856585545575325752994NANANA48458NANANA
 us-gaap:LiabilitiesAndStockholdersEquity dei:LegalEntity nee:FloridaPowerLightCompany█▇▆▅▄▃▃▂▁583175718856165552635432453484529785161150895NANANANANANANANANANANANANANANANANANANA
us-gaap:StockholdersEquity ▇█▇▅▃▃▄▂▁364033700536592349103422634144342523302132706NANANA16068NANANA14943NANANA14461NANANA12967NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AssetsCurrent █▅▅▅▆▄▆▃▃▃▂▁▂▁▂▂▂▄▂▂▂972574087679747182226393834958855612547247354045523744374854509448726252481345195258NANANA4337NANANA
 us-gaap:AssetsCurrent dei:LegalEntity nee:FloridaPowerLightCompany█▁▅▄▂▃▅▂▂349425193104300226512778303727272632NANANANANANANANANANANANANANANANANANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue █▂▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▂▁▁▁▂▂▃▁3335600113110199726384974785505584112153292462952753776402874253027918291215238NANANA
 us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity nee:FloridaPowerLightCompany█▁▂▁▁▂▂▁▁10017713793771121033826NANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▅▆█▇▅▆▇▆▄▄▄▂▂▃▂▁▂▃▃▁▂206822822717255321912302245422301881188818091366148716331466126213721689163312851509NANANA1431NANANA
 us-gaap:AccountsReceivableNetCurrent dei:LegalEntity nee:FloridaPowerLightCompany▂▃█▇▂▃█▅▁963102413541293993102613721148922NANANANANANANANANANANANANANANANANANANA
us-gaap:InventoryNet ▇▆██▇▄▂▃▄▃▂▂▁▁▂▂▂▁▁1371132814511427141012231083115912051142112010981073105510821092107410451072NA857NANANANANANANA
 us-gaap:InventoryNet dei:LegalEntity nee:FloridaPowerLightCompany▅▄▅▄▂▁▂▇█754722741729690670698783811NANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsCurrent ▅█▃▃▃▃▂▃▃▄▁▁▁▁▁▁▁▁▂▁▁10551576664603608551518554577788349267342332344264310295404293325NANANA409NANANA
 us-gaap:OtherAssetsCurrent dei:LegalEntity nee:FloridaPowerLightCompany▄▁▂▃▃██▄▇180136156162166239232175226NANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:PropertyPlantAndEquipmentNet ██▇▇▇▆▆▆▅▃▃▃▃▂▂▂▂▁▁▁▁838738201078995761367479470334685726865967196513995046049824494134769345495439684249041117408543993739075NANANA36078NANANA
 us-gaap:PropertyPlantAndEquipmentNet nee:InvestmentsByConsolidatedAndNonconsolidatedEntities us-gaap:VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosure█▁1191611893NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Goodwill ███▇▆▁42014204412934963488891NANANANANANA151NANANA147NANANA117NANANA113NANANA
us-gaap:OtherAssetsNoncurrent ▃▃▃▃▃█▃▃▃▁▁▁▁▁▁▂▂▂▁▁▁321033143220318730368412354831423170150215141554162917021790186719201863132417311779NANANA1625NANANA
 us-gaap:OtherAssetsNoncurrent dei:LegalEntity nee:FloridaPowerLightCompany▂▂▁▁▂█▇▃▃489498466457546901855599614NANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:LiabilitiesCurrent ▅▆▅▆██▅▃▃▃▃▂▃▂▂▂▁▂▁▁▁13722138531331414412179261756312807101849579921388678776887978757643800567197419638967396904NANANA6449NANANA
 us-gaap:LiabilitiesCurrent dei:LegalEntity nee:FloridaPowerLightCompany▁█▅▅▂▇▄▆█282242253744367831244076350338424330NANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtCurrent ▅▄▆▅▅▅▅▃▂█▇▅▆▄▃▃▁▁▂▃▄2489212428882673261427162649161311683933367726822771206217551458808597116815881920NANANA569NANANA
us-gaap:OtherLiabilitiesCurrent ▄█▅▃▃▃▃▂▂▁▁▂▂▂▁▁▁▁▂▂▂1422230915941149119511301105927955771743849904831718684752740823810917NANANA713NANANA
 us-gaap:OtherLiabilitiesCurrent dei:LegalEntity nee:FloridaPowerLightCompany▂▄█▁▂▅▄▃▄422510636388430543502444490NANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:LiabilitiesNoncurrent ███▇▇▆▆▆▅▃▃▃▃▂▂▂▂▁▁▁▁246862444824524236992330921476214102077820650166821623515999163151557415379153971471614240140271363113616NANANA12742NANANA
 us-gaap:LiabilitiesNoncurrent dei:LegalEntity nee:FloridaPowerLightCompany▄█▇▆▅▃▄▁▁168541743417279171121702416706167711639716395NANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent █▇▆▆▅▄▄▄▄▃▃▂▃▂▂▂▂▂▁▁▁411163754336144339472988326782270482835628062238622351422866231772271421580205822081020039192351828818013NANANA16300NANANA
 us-gaap:LongTermDebtNoncurrent dei:LegalEntity nee:FloridaPowerLightCompany█▆▆▄▂▁▁▂▁154011413114144133581232311688115951237911803NANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest █▇▄▃▄▂▁▁▂447243553582351636143269308631513287NANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent █▇▇▄▄▃▁▁▁▂▂▂▃▄▃▃▃▃▄▃▃198718311881157115591449121412311260132313311371145415031440144114241442152014201417NANANA1412NANANA
 us-gaap:OtherLiabilitiesNoncurrent dei:LegalEntity nee:FloridaPowerLightCompany▁▄▅▅▆█▄▄▄405455461465477508444450451NANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:StockholdersEquity ▇█▇▅▃▃▄▂▁364033700536592349103422634144342523302132706NANANA16068NANANA14943NANANA14461NANANA12967NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▇█▆▄▃▃▃▁▁408754136040174384263784037413373383617235993NANANA16068NANANA14943NANANANANANANA0NANANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity nee:FloridaPowerLightCompany█▅▅▅▆▅▅▂▁232402139820998211152185321014211091899318367NANANANANANANANANANANANANANANANANANANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital▇██▄▄▃▃▁▁1166811970119331054210515104901047097369698NANANA5575NANANA5270NANANANANANANANANANANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterest█▇▄▃▄▂▁▁▂447243553582351636143269308631513287NANANA0NANANA0NANANANANANANANANANANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:Parent▇█▇▅▃▃▄▂▁364033700536592349103422634144342523302132706NANANA16068NANANA14943NANANANANANANANANANANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▇█▇▆▄▃▄▂▁249222519924835245542391923837239352345323181NANANA10783NANANA9876NANANANANANANANANANANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents,dei:LegalEntity us-gaap:AdditionalPaidInCapital,nee:FloridaPowerLightCompany█▁1205110851NANA1085210601NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents,dei:LegalEntity us-gaap:RetainedEarnings,nee:FloridaPowerLightCompany█▁98169174NANA96289040NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockValue █████████▁▁▁▁▁▁▁▁▁▁▁▁555555555444444444444NANANA4NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ███▇▆▆▆▆▆▂▁▁▁▁▁▁▁▁▁▁▁1166811970119331054210515104901047097369698595955905557553654945530522452175558552554815418NANANA5055NANANA
 us-gaap:AdditionalPaidInCapitalCommonStock dei:LegalEntity nee:FloridaPowerLightCompany█▅▅▅▅▅▅▁▁1205110851108521085110852106011060391419141NANANANANANANANANANANANANANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ████▇▇▇▇▇▂▂▂▂▂▂▂▁▁▁▁▁2492225199248352455423919238372393523453231811152811109107771078310607104441008998769439926289128873NANANA7739NANANA
 us-gaap:RetainedEarningsAccumulatedDeficit dei:LegalEntity nee:FloridaPowerLightCompany█▆▄▅▇▅▆▃▁981691748773889196289040913384797853NANANANANANANANANANANANANANANANANANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▂▂▂▂▂▂▂▂▂▄▃▃▁▂▂▃▃▃▇█▇-192-169-181-191-213-188-158-173-178-82-102-136-255-219-190-94-154-114115202166NANANA169NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents nee:AccumulatedIncomeLossRelatedToEquityMethodInvestee████▇███▇▃▃▁▁333212320-17-17-22-23NANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges█▇▇▇▇▇▆▆▆▄▅▃▁-2-27-32-38-46-55-60-67-74-135-126-180-266NANANA-204NANANA24NANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss▁▂▂▂▁▁▁▁▁█▇▇▆2111293-7-7-5-215112813096NANANA103NANANA133NANANANANANANA
us-gaap:MinorityInterest █▇▄▃▄▂▁▁▂447243553582351636143269308631513287NANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▄█▃▂▁▅▂▁189419122962168415971368229216431290NANA1082NANANA835NANA1008983NANA852896NANANANA
 us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity nee:FloridaPowerLightCompany▅▃█▅▄▃▇▅▁121194717781320113687616671291588NANANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▅▅█▁▇▆█▅-3135-3714-3572-1946-6945-2389-3206-1688-3667NANA-1578NANANA-1995NANA-1282-1077NANA-922-1361NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▆▃▂▂▃█▂▁▃3961135047162514275559885-1211311NANA382NANANA1058NANA136217NANA-3161442NANANANA
 us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity nee:FloridaPowerLightCompany█▇▂▃▃▆▁▃▆11851021-38815-18684-6280668NANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▄█▃▂▁▅▂▁189419122962168415971368229216431290NANA1082NANANA835NANA1008983NANA852896NANANANA
 us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity nee:FloridaPowerLightCompany▅▃█▅▄▃▇▅▁121194717781320113687616671291588NANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▁▂▂▃▂▁▂▂█▂▂▁▁▁▂▁▂▁▂▁▁▂▁▁▁▁▁▁421975879123468042210077954428698610272429415607461667407580268263720417556349533370364
 us-gaap:NetIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:NexteraEnergyResources▁▁▁▂▁▁▁▁█3184773676613012502142743926NANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▂▃▃▃▂▂▃▂█▂▂▁30884479811396063149437013831698610-34NANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss dei:LegalEntity nee:FloridaPowerLightCompany▇▁██▆▁▇▇▃642400683663588407654626484NANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:FloridaPowerLightCompany642NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,nee:GulfPowerSegment40NANANA37NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:Parent421NA879123468040910057814428NANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings421NA879123468040910057814428NANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents,dei:LegalEntity us-gaap:RetainedEarnings,nee:FloridaPowerLightCompany642NANANA588NANANANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▅▅█▁▇▆█▅-3135-3714-3572-1946-6945-2389-3206-1688-3667NANA-1578NANANA-1995NANA-1282-1077NANA-922-1361NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▆▃▂▂▃█▂▁▃3961135047162514275559885-1211311NANA382NANANA1058NANA136217NANA-3161442NANANANA
 us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity nee:FloridaPowerLightCompany█▇▂▃▃▆▁▃▆11851021-38815-18684-6280668NANANANANANANANANANANANANANANANANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▇▅▆█▅▁▂▂▃43542996336947862768371115310711804NANA623NANANA566NANA1252201NANA785800NANANANA
 us-gaap:ProceedsFromIssuanceOfLongTermDebt dei:LegalEntity nee:FloridaPowerLightCompany█▁▅▆▄▂▁▄▅15580800105564315405941000NANANANANANANANANANANANANANANANANANANA
us-gaap:RepaymentsOfLongTermDebt ▂█▇▇▁▂▆▁▄3121931168517101665091379272942NANA923NANANA134NANA739252NANA167102NANANANA
 us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity nee:FloridaPowerLightCompany▃▁▁▁▁▁█▁█284103610391178211787NANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsOfDividends █▅▄▄▄▁▁▁▁685611600599598531523524523NANA279NANANA248NANA230229NANA206204NANANANA
us-gaap:PaymentsOfDividends █▅▄▄▄▁▁▁▁685611600599598531523524523NANA279NANANA248NANA230229NANA206204NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:RepaymentsOfLongTermDebt ▂█▇▇▁▂▆▁▄3121931168517101665091379272942NANA923NANANA134NANA739252NANA167102NANANANA
 us-gaap:RepaymentsOfLongTermDebt dei:LegalEntity nee:FloridaPowerLightCompany▃▁▁▁▁▁█▁█284103610391178211787NANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,dei:LegalEntity nee:DebenturesRelatedToNexteraEnergysEquityUnits,nee:NextEraEnergyCapitalHoldingsInc.0.0184NA0.021NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,dei:LegalEntity nee:FirstMortgageBonds,nee:FloridaPowerLightCompany0.0285NANA0.0399NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:SubsequentEventType us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value555555555555555555554444444444444444444
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Par Or Stated Value Per Share

Common Stock Shares Issued

dei:LegalEntity

us-gaap:CommonStockSharesIssued

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1000.01000.01000.01000.01000.01000.01000.00.01000.01000.01000.01000.01000.0
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value489489489479479478478472471471470469468468467462461461461452444443436436436435431425425424423423417416421
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value0000000000000
Percentage of CommonStockSharesOutstanding0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value489489489479479478478472471471470469468468467462461461461452444443436436436435424416421414409407
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

Common Stock Shares Authorized

dei:LegalEntity

us-gaap:CommonStockSharesAuthorized

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value0000000000000
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value491486482481477475474473471470466464462456449448440440438426424423421417414419419418413411410
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value489481478478473471470469467467463461460454445442434434433423421421419415412417416415410408407
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.862.01.822.581.420.882.131.699.414.581.81.693.392.071.631.171.381.11.941.611.472.031.521.130.990.761.651.450.651.020.991.461.121.60.981.390.640.641.751.021.360.861.320.920.9
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.861.991.812.561.410.882.11.649.324.551.791.683.372.061.621.161.371.11.931.591.452.01.51.120.980.751.641.440.641.020.981.451.111.590.971.380.640.631.741.011.360.851.310.910.9
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

Income Loss From Continuing Operations Per Diluted Share

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value3900430049004500380045004100350033004394383332793375384336673371386443823961313434134691359136223655447338113705
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-03-31
Value25002600
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax64.168.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax64.168.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany100.0100.0

Revenues

Interest Expense

us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:InterestExpense

us-gaap:ForeignExchangeContract, us-gaap:Nondesignated, nee:GainLossIncludedInInterestExpense, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-77000000.0-3000000.0-2000000.0-3000000.0-3000000.0-3000000.00.00.00.0
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ForeignExchangeContract us-gaap:Nondesignated nee:GainLossIncludedInInterestExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestRateContract, us-gaap:Nondesignated, nee:GainLossIncludedInInterestExpense, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-25000000.0-8000000.0-6000000.0-6000000.0-12000000.0-5000000.0-8000000.0-8000000.0-9000000.0-12000000.0-13000000.0-13000000.0-10000000.0-19000000.0-18000000.0-25000000.0-28000000.00.00.00.0
Percentage of InterestExpense2500.0800.0600.0600.01200.0500.0800.0800.0900.01200.01300.016.9333.3950.0600.0833.3933.30.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.6-0.2-0.1-0.1-0.3-0.1-0.2-0.2-0.30.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:InterestRateContract us-gaap:Nondesignated nee:GainLossIncludedInInterestExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Expenses

us-gaap:OperatingExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value2632371139793223294032753448290728163774340931191567277235262648260131943473321229753133349130782936320928522845309426452528347130542706356628822683
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax67.586.381.271.677.472.884.183.185.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.073.074.486.880.572.175.079.277.186.376.080.374.1

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1625230825182304176123272482198619122259245521501716186323621922
Percentage of OperatingExpenses61.762.263.371.559.971.172.068.367.959.972.068.9109.567.267.072.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax41.753.751.451.246.351.760.556.757.90.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany65.00.00.00.067.70.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConsolidationItems

nee:CorporateAndEliminations



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value31453744424442
Percentage of OperatingExpenses1.21.11.11.51.21.51.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.80.90.81.21.01.31.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:CorporateAndEliminations0.00.00.00.00.00.00.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1625230825182304176123272482198619122259245521501716186323621922
Percentage of OperatingExpenses61.762.263.371.559.971.172.068.367.959.972.068.9109.567.267.072.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax41.753.751.451.246.351.760.556.757.90.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments nee:FloridaPowerLightCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, nee:GulfPowerSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value270315332298271
Percentage of OperatingExpenses10.38.58.39.29.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax6.97.36.86.67.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments nee:GulfPowerSegment0.00.00.00.00.0

us-gaap:OperatingSegments, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value706110110845848649059248778611466964957931844974654
Percentage of OperatingExpenses26.829.727.218.129.427.626.830.230.638.828.330.759.430.427.624.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax18.125.622.113.022.720.122.525.126.10.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments nee:NexteraEnergyResources0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1981878159317471135110797011621047236139912852405926127911691234876148111461129153211639517386411185981434732749102284311329119074284691125709939557849605583
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax50.820.432.538.829.924.623.733.231.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.027.025.613.221.719.527.925.029.320.822.913.713.724.019.725.915.219.015.915.7

dei:LegalEntity

nee:FloridaPowerLightCompany



Period 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
Value9156179738548576099179227086181022941811694921828714
Percentage of OperatingIncomeLoss46.270.361.148.975.555.094.579.367.6261.973.173.233.774.972.070.857.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax23.514.319.919.022.613.522.426.321.50.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany36.60.00.00.033.00.00.00.00.00.00.00.00.00.00.00.00.0

nee:NextEraEnergyPartners



Period End2020-03-312019-03-31
Value4934
Percentage of OperatingIncomeLoss2.53.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.30.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:NextEraEnergyPartners0.00.0

Interest Expense

us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:InterestExpense

us-gaap:ForeignExchangeContract, us-gaap:Nondesignated, nee:GainLossIncludedInInterestExpense, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-77000000.0-3000000.0-2000000.0-3000000.0-3000000.0-3000000.00.00.00.0
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ForeignExchangeContract us-gaap:Nondesignated nee:GainLossIncludedInInterestExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestRateContract, us-gaap:Nondesignated, nee:GainLossIncludedInInterestExpense, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-25000000.0-8000000.0-6000000.0-6000000.0-12000000.0-5000000.0-8000000.0-8000000.0-9000000.0-12000000.0-13000000.0-13000000.0-10000000.0-19000000.0-18000000.0-25000000.0-28000000.00.00.00.0
Percentage of InterestExpense2500.0800.0600.0600.01200.0500.0800.0800.0900.01200.01300.016.9333.3950.0600.0833.3933.30.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.6-0.2-0.1-0.1-0.3-0.1-0.2-0.2-0.30.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:InterestRateContract us-gaap:Nondesignated nee:GainLossIncludedInInterestExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value1024121614181110614236-2121726-3138489-20-39245-27-3-14725-29-2
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.30.60.20.40.40.40.30.30.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.20.60.2-0.7-0.1-0.00.10.20.10.1-0.8-0.1

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value022222211-4100-103
Percentage of OtherNonoperatingIncomeExpense0.08.316.712.514.311.118.210.016.7-28.64.30.0-0.0-50.00.011.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.00.00.00.10.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany0.00.00.00.00.10.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-3531810-21100-20-610516-24-9820-22-331514-19-617-176-23-93-36-192
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.90.10.00.20.3-0.50.20.0-0.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.1-0.6-0.30.1-0.10.2-0.40.1

Income Loss From Continuing Operations

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value731036856126368027210699315080861220109322661521120776389675713029949361337943784583995821252569850618565727236960494
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.924.117.528.117.96.026.126.6153.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.022.621.47.714.823.218.312.918.47.520.513.8

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value779483834714744506806802596516922839708599824728
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1067.146.697.456.5109.4186.075.486.111.7600.075.676.831.239.468.395.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax20.011.217.015.919.611.219.722.918.10.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany31.20.00.00.028.60.00.00.00.00.00.00.00.00.00.00.0

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

Income Loss From Continuing Operations Before Income Taxes Domestic

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value-1908159-737-484-455-82999-2314033-150-179-192-139595-72-406-338-118-179-152-193-194-220-167-155-190-160-182-180-172-225-346-180-192-165-215
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-48.93.7-15.0-10.8-12.0-18.42.4-6.6122.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-4.3-4.2-5.6-4.7-4.7-6.7-7.9-4.5-6.1-3.5-6.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-136-134-139-140-113-102-111-120-112-102-100-102-103-96-97-100
Percentage of NonoperatingIncomeExpense7.1-84.318.928.924.812.3-112.151.9-2.868.055.953.174.1-16.1134.724.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-3.5-3.1-2.8-3.1-3.0-2.3-2.7-3.4-3.40.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany-5.40.00.00.0-4.30.00.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value-2351925812474-291262301249-1982364289675504418219259247421274286453279292153297211168154243157158147-3224077214
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-6.04.51.22.81.9-0.63.16.637.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.06.85.55.14.06.64.73.63.7-1.05.12.15.9

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value137831515115699152176112173356313263228309280
Percentage of IncomeTaxExpenseBenefit-58.343.2260.341.1210.8-341.4120.676.59.0-8.797.8108.339.045.273.9127.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.51.93.11.14.12.23.75.03.40.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany5.50.00.00.06.00.00.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid Net

Profit Loss

us-gaap:ProfitLoss



Period 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
Value30884479811396063149437013831206885680415911017789544637510881720650884664492-14327698610-34
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax7.919.616.325.315.97.023.020.0116.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.015.915.9-1.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value642400683663588407654626484343
Percentage of ProfitLoss208.447.485.658.297.0129.669.489.312.616.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.59.313.914.715.59.016.017.914.70.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany25.70.00.00.022.60.00.00.00.00.0

nee:NextEraEnergyPartners



Period End2020-03-312019-03-31
Value-720-121
Percentage of ProfitLoss-233.8-20.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-18.5-3.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:NextEraEnergyPartners0.00.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, nee:FloridaPowerLightCompany



Period End2020-03-31
Value642
Percentage of ProfitLoss208.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments nee:FloridaPowerLightCompany0.0

us-gaap:OperatingSegments, nee:GulfPowerSegment



Period End2020-03-312019-03-31
Value4037
Percentage of ProfitLoss13.06.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.01.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments nee:GulfPowerSegment0.00.0

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value-112-81-95-74-108-64-94-597-8710118513741320
Percentage of ProfitLoss-36.4-10.2-8.3-12.2-34.4-6.8-13.4-15.6-4.21.21.40.55.04.70.70.20.60.20.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-2.9-1.7-2.1-1.9-2.4-1.6-2.7-18.10.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value42187912346804091005781442821558477931583966753557636507879716650884660491430
Percentage of ProfitLoss136.7110.2108.3112.2130.3106.6111.4115.6104.298.998.699.595.095.4102.499.899.499.899.4100.0100.099.499.8-3071.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax10.817.927.417.99.124.522.3134.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value42187912346804091005781442821558477931583966753557636507879716650884660491430
Percentage of ProfitLoss136.7110.2108.3112.2130.3106.6111.4115.6104.298.998.699.595.095.4102.499.899.499.899.4100.0100.099.499.8-3071.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax10.817.927.417.99.124.522.3134.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:RetainedEarnings, nee:FloridaPowerLightCompany



Period End2020-03-312019-03-31
Value642588
Percentage of ProfitLoss208.497.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.515.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings nee:FloridaPowerLightCompany0.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value39898788912566563791022800446722188928361613931799571690508714785617797648530395718644391386511521178493304718310544
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax10.223.018.127.917.38.424.922.9135.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.016.316.811.910.013.915.54.112.49.715.38.615.0

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-119-130-81-95-74-108-64-94-597-869121971305-13-2-15-3-240000
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-3.1-3.0-1.7-2.1-1.9-2.4-1.6-2.7-18.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value42197587912346804221007795442821558477931583966753540636507879716650884660492430327698610272429415607461667407580268263720417556349533370364
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax10.822.717.927.417.99.424.622.7134.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.015.915.98.312.710.816.613.717.39.314.68.67.715.311.615.49.511.99.79.8

dei:LegalEntity

nee:NextEraEnergyPartners



Period End2020-03-312019-03-31
Value-222-22
Percentage of NetIncomeLoss-52.7-3.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-5.7-0.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:NextEraEnergyPartners0.00.0

us-gaap:ConsolidationItems

nee:CorporateAndEliminations



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-579-247-135-246139-10518
Percentage of NetIncomeLoss-137.5-28.1-10.9-36.213.8-13.20.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-14.8-5.0-3.0-6.53.4-3.00.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:CorporateAndEliminations0.00.00.00.00.00.00.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value31847736766130125021427439261894292301476360307234
Percentage of NetIncomeLoss75.548.941.853.644.359.221.334.588.787.934.538.030.137.340.843.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax8.211.17.514.77.95.65.27.8119.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments nee:NexteraEnergyResources0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-113-131-81-95-74-108-64-94-597-8791185136413240040000
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-2.9-3.0-1.7-2.1-1.9-2.4-1.6-2.7-18.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-12-312008-12-31
Value1206371176911142221105521090291037029860395490942849782796781928909120589993878648542084637824797996377201749297492972193715907033169306671666521763843644396204960390592075718856585545575325752994529944845844821
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value58317571885616555263543245348452978516115089550244499154780045501
Percentage of Assets48.348.649.250.049.851.653.754.054.051.451.651.550.6
Percentage of Assets48.348.649.250.049.851.653.754.054.051.451.651.550.6
Percentage of Assets nee:FloridaPowerLightCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-31
Value235173
Percentage of Assets0.20.1
Percentage of Assets0.20.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0

nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity

nee:PhotovoltaicSolarFacility, nee:IndirectSubsidiaryofNextEraEnergyResources



Period End2020-03-312019-12-31
Value778776
Percentage of Assets0.60.7
Percentage of Assets0.60.7
Percentage of Assets nee:PhotovoltaicSolarFacility nee:IndirectSubsidiaryofNextEraEnergyResources100.0100.0

nee:VariableInterestEntitiesGasAndOilPrimaryBeneficiary, nee:NexteraEnergyResources



Period End2020-03-312019-12-31
Value204216
Percentage of Assets0.20.2
Percentage of Assets0.20.2
Percentage of Assets nee:VariableInterestEntitiesGasAndOilPrimaryBeneficiary nee:NexteraEnergyResources100.0100.0

nee:VariableInterestEntitiesWindandSolarPrimaryBeneficiaryMember, nee:NexteraEnergyResources



Period End2020-03-312019-12-31
Value1120011300
Percentage of Assets9.39.6
Percentage of Assets9.39.6
Percentage of Assets nee:VariableInterestEntitiesWindandSolarPrimaryBeneficiaryMember nee:NexteraEnergyResources100.0100.0

us-gaap:ConsolidationItems

nee:CorporateAndEliminations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value462531326299465448016688
Percentage of Assets3.82.75.54.24.46.4
Percentage of Assets3.82.75.54.24.46.4
Percentage of Assets nee:CorporateAndEliminations100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value5831757188561655526354324534845297851611508955024449915478004550142523
Percentage of Assets48.348.649.250.049.851.653.754.054.051.451.651.550.651.6
Percentage of Assets48.348.649.250.049.851.653.754.054.051.451.651.550.651.6
Percentage of Assets us-gaap:OperatingSegments nee:FloridaPowerLightCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, nee:GulfPowerSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value62405855545954055378
Percentage of Assets5.25.04.84.94.9
Percentage of Assets5.25.04.84.94.9
Percentage of Assets us-gaap:OperatingSegments nee:GulfPowerSegment100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value5145551516462994523044526435304368142052421714554944991439444174337647
Percentage of Assets42.743.840.540.940.842.044.344.044.746.646.547.346.445.6
Percentage of Assets42.743.840.540.940.842.044.344.044.746.646.547.346.445.6
Percentage of Assets us-gaap:OperatingSegments nee:NexteraEnergyResources100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

nee:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:Liabilities

us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-31
Value5629
Percentage of Liabilities100.0100.0
Percentage of Assets0.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary23.816.8

nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity

nee:PhotovoltaicSolarFacility, nee:IndirectSubsidiaryofNextEraEnergyResources



Period End2020-03-312019-12-31
Value635598
Percentage of Liabilities1133.92062.1
Percentage of Assets0.50.5
Percentage of Assets nee:PhotovoltaicSolarFacility nee:IndirectSubsidiaryofNextEraEnergyResources81.677.1

nee:VariableInterestEntitiesGasAndOilPrimaryBeneficiary, nee:NexteraEnergyResources



Period End2020-03-312019-12-31
Value2325
Percentage of Liabilities41.186.2
Percentage of Assets0.00.0
Percentage of Assets nee:VariableInterestEntitiesGasAndOilPrimaryBeneficiary nee:NexteraEnergyResources11.311.6

nee:VariableInterestEntitiesWindandSolarPrimaryBeneficiaryMember, nee:NexteraEnergyResources



Period End2020-03-312019-12-31
Value600800
Percentage of Liabilities1071.42758.6
Percentage of Assets0.50.7
Percentage of Assets nee:VariableInterestEntitiesWindandSolarPrimaryBeneficiaryMember nee:NexteraEnergyResources5.47.1

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value120637117691114222110552109029103702986039549094284978279678192890912058999387864854208463782479799637720174929749297219371590703316930667166652176384364439620496039059207571885658554557532575299448458
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value58317571885616555263543245348452978516115089550244499154780045501
Percentage of LiabilitiesAndStockholdersEquity48.348.649.250.049.851.653.754.054.051.451.651.550.6
Percentage of Assets48.348.649.250.049.851.653.754.054.051.451.651.550.6
Percentage of Assets nee:FloridaPowerLightCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value3640337005365923491034226341443425233021327062820826398259262549724341239072317422912225742231821338202351991618810184291816018040160681494314461129671168110735
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.231.432.031.631.432.934.734.634.728.827.327.928.027.027.227.127.127.427.927.627.026.626.125.725.826.024.926.127.326.826.10.0

Assets Current

us-gaap:AssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value972574087679747182226393834958855612715770275947582774096747651270966795665763466297694456336099614158425472473540455237443748545094487262524813451952584337
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.16.36.76.87.56.28.56.26.07.37.36.46.48.27.77.68.48.28.38.28.49.37.88.58.78.48.17.36.38.17.28.08.68.511.08.88.59.99.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value3494251931043002265127783037272726322684308226602746
Percentage of AssetsCurrent35.934.040.440.232.243.536.446.346.937.543.944.737.1
Percentage of Assets2.92.12.72.72.42.73.12.92.82.73.22.93.1
Percentage of Assets nee:FloridaPowerLightCompany6.04.45.55.44.95.25.75.35.25.36.25.66.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value33356001131101997263849747855017141381642600129268173062857111815514695774856224884385584112153292462952753776402874253027918291215238535290
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 Assets2.80.51.00.90.90.60.50.50.61.81.40.70.71.40.80.90.70.71.50.70.60.80.70.90.70.60.80.60.30.50.40.50.50.71.10.50.80.61.50.00.00.51.20.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-31
Value100177137937711210338263383333461423
Percentage of CashAndCashEquivalentsAtCarryingValue30.012.812.19.17.917.620.77.94.71.90.65.12.66.81.94.0
Percentage of Assets0.80.10.10.10.10.10.10.00.00.00.00.00.00.10.00.0
Percentage of Assets nee:FloridaPowerLightCompany1.70.10.20.20.10.20.20.10.10.10.00.10.10.00.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value206822822717255321912302245422301881222021471950163517841921181615741784196118831718180520221978190417771888180913661487163314661262137216891633128515091431
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.92.42.32.02.22.52.32.02.32.22.11.82.02.22.11.92.22.52.42.32.42.82.82.72.62.82.82.12.32.62.42.12.43.03.02.42.83.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value96310241354129399310261372114892210731212974768
Percentage of AccountsReceivableNetCurrent46.644.949.850.645.344.655.951.549.048.356.549.943.0
Percentage of Assets0.80.91.21.20.91.01.41.21.01.11.31.00.9
Percentage of Assets nee:FloridaPowerLightCompany1.71.82.42.31.81.92.62.21.82.12.42.01.7

Receivables Net Current

Inventory Net

us-gaap:InventoryNet



Period 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
Value137113281451142714101223108311591205127313521313130312891309125412871259134412781249129212691178114811531142112010981073105510821092107410451072857
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.11.31.31.31.21.11.21.31.31.41.41.41.41.51.51.51.51.71.71.71.71.81.61.61.71.71.71.71.71.71.81.81.91.82.01.6

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value754722741729690670698783811840903875851
Percentage of InventoryNet55.054.451.151.148.954.864.567.667.366.066.866.666.0
Percentage of Assets0.60.60.60.70.60.60.70.80.90.90.90.90.9
Percentage of Assets nee:FloridaPowerLightCompany1.31.31.31.31.31.31.31.51.61.71.81.81.9

Other Assets Current

us-gaap:OtherAssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10551576664603608551518554577468551524558528459469518476602666485439485697385403788349267342332344264310295404293325409
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.91.30.60.50.60.50.50.60.60.50.60.60.60.60.50.50.60.60.80.90.60.60.71.00.50.61.20.50.40.50.50.60.40.50.50.70.60.60.8

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value180136156162166239232175226241176168213
Percentage of OtherAssetsCurrent17.18.623.526.927.343.444.831.639.251.531.932.140.3
Percentage of Assets0.10.10.10.10.20.20.20.20.20.20.20.20.2
Percentage of Assets nee:FloridaPowerLightCompany0.30.20.30.30.30.40.40.30.40.50.40.40.5

Property Plant And Equipment Gross

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value838738201078995761367479470334685726865967196724167108869656684006691265617641576289461386598355831056233557055506754031533065272051399504604982449413476934549543968424904111740854399373907536078
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets69.569.769.268.968.667.869.571.971.374.073.575.075.074.474.775.174.374.474.875.575.074.376.375.575.876.176.577.478.076.776.975.374.374.372.774.975.073.774.5

nee:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosure



Period End2020-03-312019-12-31
Value1191611893
Percentage of PropertyPlantAndEquipmentNet14.214.5
Percentage of Assets9.910.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosure0.00.0

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value42014204412934963488891764779778147149151147117113
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.53.63.63.23.20.90.80.90.90.20.20.20.30.20.2

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value300300298302302302
Percentage of Goodwill7.17.17.28.68.733.9
Percentage of Assets0.20.30.30.30.30.3
Percentage of Assets nee:FloridaPowerLightCompany0.50.50.50.50.60.6

Finite Lived Intangible Assets Net

Deferred Tax Assets Liabilities Net

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value321033143220318730368412354831423170408137363740363233353279306932853239233322392224251119381919161214261502151415541629170217901867192018631324173117791625
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.82.82.92.88.13.63.33.44.23.94.04.03.73.73.63.93.92.92.93.03.42.72.72.32.12.22.32.42.52.73.03.23.43.32.43.33.43.4

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value489498466457546901855599614690302324207
Percentage of OtherAssetsNoncurrent15.215.014.514.318.010.724.119.119.416.98.18.76.2
Percentage of Assets0.40.40.40.40.50.90.90.60.70.70.30.30.2
Percentage of Assets nee:FloridaPowerLightCompany0.80.90.80.81.01.71.61.21.21.40.60.70.5

Liabilities Current

us-gaap:LiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value13722138531331414412179261756312807101849579112321160489509761109191045611336105871010710371942193869663957296901029291899213886787768879787576438005671974196389673969046449
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.411.811.713.016.416.913.010.710.211.512.09.610.712.111.913.312.512.313.012.212.512.913.313.514.613.313.713.613.713.812.712.713.511.713.111.712.713.013.3

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value2822422537443678312440763503384243305797557843643381
Percentage of LiabilitiesCurrent20.630.528.125.517.423.227.437.745.251.648.148.831.0
Percentage of Assets2.33.63.33.32.93.93.64.04.65.95.84.73.8
Percentage of Assets nee:FloridaPowerLightCompany4.87.46.76.75.87.66.67.48.511.511.29.17.4

Debt Current

Notes Payable Current

Long Term Debt Current

us-gaap:LongTermDebtCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value248921242888267326142716264916131168167622851762276626042364312521452220249727683457351533853285382237663933367726822771206217551458808597116815881920569
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.11.82.52.42.42.62.71.71.21.72.41.93.02.92.73.72.52.73.13.64.64.74.74.65.45.45.95.64.24.33.32.92.51.41.12.13.03.61.2

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value213027625695969293466463461367
Percentage of LongTermDebtCurrent0.81.40.92.32.13.53.65.78.027.820.326.214.1
Percentage of Assets0.00.00.00.10.10.10.10.10.10.50.50.50.4
Percentage of Assets nee:FloridaPowerLightCompany0.00.10.00.10.10.20.20.20.20.90.91.00.8

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value142223091594114911951130110592795515482077855904122612301190943855827606523751705767871930771743849904831718684752740823810917713
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.22.01.41.01.11.11.11.01.01.62.10.91.01.41.41.41.11.01.00.80.71.01.01.11.21.31.11.11.31.41.31.21.21.31.31.51.51.71.5

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value4225106363884305435024444909841576407497
Percentage of OtherLiabilitiesCurrent29.722.139.933.836.048.145.447.951.363.675.947.640.5
Percentage of Assets0.30.40.60.40.40.50.50.50.51.01.60.40.6
Percentage of Assets nee:FloridaPowerLightCompany0.70.91.10.70.81.00.90.91.02.03.20.91.1

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value246862444824524236992330921476214102077820650256342751126672264362592524344232012262922579211622094420815207311862418422180551810816682162351599916315155741537915397147161424014027136311361612742
Percentage of LiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.520.821.521.421.420.721.721.821.926.228.428.729.028.827.727.226.727.426.527.127.827.725.825.725.726.124.824.925.125.325.125.526.025.725.225.725.625.726.3

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value16854174341727917112170241670616771163971639516171169361616815835
Percentage of LiabilitiesNoncurrent68.371.370.572.273.077.878.378.979.463.161.660.661.1
Percentage of Assets14.014.815.115.515.616.117.017.217.416.517.517.417.6
Percentage of Assets nee:FloridaPowerLightCompany28.930.530.831.031.331.231.731.832.232.233.933.834.8

Long Term Debt

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value411163754336144339472988326782270482835628062314633034530392285392781828195270012779126681256042523524264243672485325049238242396923862235142286623177227142158020582208102003919235182881801316300
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets34.131.931.630.727.425.827.429.729.832.231.432.731.330.932.131.632.832.332.032.732.432.534.435.033.934.635.536.135.836.036.635.734.836.435.435.334.334.033.6

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1540114131141441335812323116881159512379118031123610055100889705
Percentage of LongTermDebtNoncurrent37.537.639.139.341.243.642.943.742.135.733.133.234.9
Percentage of Assets12.812.012.412.111.311.311.813.012.511.510.410.910.8
Percentage of Assets nee:FloridaPowerLightCompany26.424.725.224.222.721.921.924.023.222.420.121.121.3

nee:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosure



Period End2020-03-312019-12-31
Value490498
Percentage of LongTermDebtNoncurrent1.21.3
Percentage of Assets0.40.4
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosure0.00.0

Deferred Tax Liabilities Noncurrent

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

Minority Interest

us-gaap:MinorityInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value447243553582351636143269308631513287129092395097299096270871853850826322925233400
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of Assets3.73.73.13.23.33.23.13.33.51.31.01.01.11.11.10.80.80.70.60.30.30.30.50.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value198718311881157115591449121412311260214621152110214120492115184719202005171016791649167716861434124212571323133113711454150314401441142414421520142014171412
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.61.61.41.41.41.21.31.32.22.22.32.32.32.42.22.32.42.12.22.22.22.32.01.81.82.02.02.12.32.42.42.42.52.52.82.72.72.9

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value405455461465477508444450451477526524482
Percentage of OtherLiabilitiesNoncurrent20.424.824.529.630.635.136.636.635.822.224.924.823.5
Percentage of Assets0.30.40.40.40.40.50.50.50.50.50.50.60.5
Percentage of Assets nee:FloridaPowerLightCompany0.70.80.80.80.90.90.80.90.90.91.11.11.1

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value3640337005365923491034226341443425233021327062820826398259262549724341239072317422912225742231821338202351991618810184291816018040160681494314461129671168110735
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.231.432.031.631.432.934.734.634.728.827.327.928.027.027.227.127.127.427.927.627.026.626.125.725.826.024.926.127.326.826.10.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312009-12-31
Value408754136040174384263784037413373383617235993294982732126876264692533124869238822363023112228262160120464201681914418429181601804016068149430
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets33.935.135.234.834.736.137.937.938.230.228.228.929.028.128.328.027.928.028.528.027.326.926.525.725.826.024.926.10.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value23240213982099821115218532101421109189931836717040173461718016580
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest56.951.752.354.957.856.256.552.551.057.863.563.965.5
Percentage of Assets19.318.218.419.120.020.321.419.919.517.417.918.518.4
Percentage of Assets nee:FloridaPowerLightCompany39.937.437.438.240.239.339.836.836.133.934.835.936.4

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312009-12-31
Value-192-169-181-191-213-188-158-173-178111483-40-70-36-82-113-167-168-4-73-4047592156-255-154-5
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.5-0.4-0.5-0.5-0.6-0.5-0.4-0.5-0.50.40.20.0-0.2-0.3-0.1-0.3-0.5-0.7-0.7-0.0-0.4-0.20.20.30.10.3-1.6-1.00.0
Percentage of Assets-0.2-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.20.10.00.0-0.0-0.1-0.0-0.1-0.1-0.2-0.2-0.0-0.1-0.10.10.10.00.1-0.4-0.3-0.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value11668119701193310542105151049010470973696989100904690048951894890398703864585978500789072347193657365266474643755755270
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest28.528.929.727.427.828.028.026.926.930.833.133.533.835.336.336.436.637.237.236.535.335.734.335.435.635.734.735.3
Percentage of Assets9.710.210.49.59.610.110.610.210.39.39.39.79.89.910.310.210.210.410.610.29.79.69.19.19.29.38.79.2
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value5555555555555555555544444444
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value447243553582351636143269308631513287129092395097299096270871853850826322925233400000
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest10.910.58.99.29.68.78.38.79.14.43.43.53.73.93.93.03.02.32.21.21.11.21.70.00.00.00.00.0
Percentage of Assets3.73.73.13.23.33.23.13.33.51.31.01.01.11.11.10.80.80.70.60.30.30.30.50.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value36403370053659234910342263414434252330213270628208263982592625497243412390723174229122257422318213382023519916188101842918160180401606814943
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest89.189.591.190.890.491.391.791.390.995.696.696.596.396.196.197.097.097.797.898.898.998.898.3100.0100.0100.0100.0100.0
Percentage of Assets30.231.432.031.631.432.934.734.634.728.827.327.928.027.027.227.127.127.427.927.627.026.626.125.725.826.024.926.1
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value2492225199248352455423919238372393523453231811899217299169141658115458148991454814375141401398713456130821277312204118601168411569107839876
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest61.060.961.863.963.263.764.164.864.464.463.362.962.661.059.960.960.861.261.362.363.963.363.764.464.364.167.166.1
Percentage of Assets20.721.421.722.221.923.024.324.624.619.417.918.218.217.217.017.017.017.117.517.417.517.016.916.616.616.716.717.3
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:AdditionalPaidInCapital, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-03-312018-12-31
Value12051108511085210601
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest29.526.228.728.3
Percentage of Assets10.09.210.010.2
Percentage of Assets us-gaap:AdditionalPaidInCapital nee:FloridaPowerLightCompany0.00.00.00.0

us-gaap:RetainedEarnings, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-03-312018-12-31
Value9816917496289040
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest24.022.225.424.2
Percentage of Assets8.17.88.88.7
Percentage of Assets us-gaap:RetainedEarnings nee:FloridaPowerLightCompany0.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value555555555555555555554444444444444444444
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1166811970119331054210515104901047097369698910090469004895189489039870386458596849478817222717965556506645164115959559055575536549455305224521755585525548154185055
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.710.210.49.59.610.110.610.210.39.39.39.79.89.910.310.210.210.410.610.29.69.69.19.19.29.38.98.68.78.68.99.28.89.19.810.110.310.210.4

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value12051108511085210851108521060110603914191418291829182918332
Percentage of AdditionalPaidInCapitalCommonStock103.390.790.9102.9103.2101.1101.393.994.391.191.792.193.1
Percentage of Assets10.09.29.59.810.010.210.89.69.78.58.68.99.3
Percentage of Assets nee:FloridaPowerLightCompany20.719.019.319.620.019.820.017.718.016.516.617.318.3

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value249222519924835245542391923837239352345323181189921729916914165811545814899145481437514140139871345613082127731220411860116841156911528111091077710783106071044410089987694399262891288737739
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.721.421.722.221.923.024.324.624.619.417.918.218.217.217.017.017.017.117.517.417.517.016.916.616.616.717.217.016.916.717.117.317.017.316.717.016.716.716.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value9816917487738891962890409133847978537376768275166875
Percentage of RetainedEarningsAccumulatedDeficit39.436.435.336.240.337.938.236.233.938.844.444.444.5
Percentage of Assets8.17.87.78.08.88.79.38.98.37.57.98.17.6
Percentage of Assets nee:FloridaPowerLightCompany16.816.015.616.117.716.917.216.415.414.715.415.715.1

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-192-169-181-191-213-188-158-173-178111483-40-70-36-82-113-167-168-4-73-4047592156-82-102-136-255-219-190-94-154-114115202166169
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.2-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.20.10.00.0-0.0-0.1-0.0-0.1-0.1-0.2-0.2-0.0-0.1-0.10.10.10.00.1-0.1-0.2-0.2-0.4-0.4-0.3-0.2-0.3-0.20.20.40.30.3

us-gaap:StatementEquityComponents

nee:AccumulatedIncomeLossRelatedToEquityMethodInvestee



Period 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
Value333212320-20-21-22-21-22-25-28-27-24-26-23-26-24-21-21-18-16-17-17-22-23
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-1.6-1.8-1.7-1.0-0.5-1.1-1.9-1.2-0.0-18.0-43.8-733.352.531.469.434.123.914.415.5575.035.660.0-44.7-35.6-85.7-28.620.716.716.29.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets nee:AccumulatedIncomeLossRelatedToEquityMethodInvestee0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-111-114-120-119-118-65-52-51-50-39-77-76-86-83-69-69-69-62-36-36-36-2028282823-67-67-67-74-46-1
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax57.867.566.362.355.434.632.929.528.1-35.1-160.4-2533.3215.0118.6191.784.161.137.121.4900.049.350.059.647.5133.341.181.765.749.329.029.9-0.6
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.00.00.00.00.0-0.1-0.1-0.1-0.1-0.1-0.0
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-2-27-32-38-46-55-60-67-74-77-85-96-101-100-117-134-146-170-212-128-189-156-123-135-124-115-135-126-180-266-20424
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax1.016.017.719.921.629.338.038.741.6-69.4-177.1-3200.0252.5142.9325.0163.4129.2101.8126.23200.0258.9390.0-261.7-228.8-590.5-205.4164.6123.5132.4104.3132.514.5
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.3-0.2-0.3-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.3-0.4-0.40.0
Percentage of Assets us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value2111293-7-7-5-231629326824322522219318117416421022021820222018519715112813096103133
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-1.0-6.5-6.6-4.7-1.43.74.42.91.1284.7610.48933.3-607.5-321.4-616.7-235.4-160.2-104.2-97.6-5250.0-301.4-545.0429.8372.9881.0351.8-184.1-125.5-95.6-37.6-66.980.1
Percentage of Assets0.00.00.00.00.0-0.0-0.0-0.0-0.00.30.30.30.30.30.30.20.20.20.20.30.30.30.30.30.30.30.20.20.20.10.20.3
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-84-42-44-45-53-63-42-52-52-69-62-71-75-90-47-44-52-85-58-27-42-58-39-33-50-33-14-20312510
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax43.824.924.323.624.933.526.630.129.2-62.2-129.2-2366.7187.5128.6130.653.746.050.934.5675.057.5145.0-83.0-55.9-238.1-58.917.119.6-2.2-4.7-3.26.0
Percentage of Assets-0.1-0.0-0.0-0.0-0.0-0.1-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.0-0.1-0.1-0.1-0.0-0.1-0.0-0.0-0.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value447243553582351636143269308631513287129092395097299096270871853850826322925233400
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of Assets3.73.73.13.23.33.23.13.33.51.31.01.01.11.11.10.80.80.70.60.30.30.30.50.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value189419122962168415971368229216431290125319951801136410422024172515451603157917531181153215201431101710828351008983852896
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax48.644.560.437.442.030.455.946.939.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.033.024.825.431.423.724.7

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value121194717781320113687616671291588441141512847695751467
Percentage of NetCashProvidedByUsedInOperatingActivities63.949.560.078.471.164.072.778.645.635.270.971.356.455.272.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax31.122.036.329.329.919.540.736.917.80.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany48.40.00.00.043.70.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value-3135000000.0-3714000000.0-3572000000.0-1946000000.0-6945000000.0-2389000000.0-3206000000.0-1688000000.0-3667000000.0-2083000000.0-1326000000.0-1775000000.0-3734000000.0-1127000000.0-1546000000.0-1756000000.0-3681000000.0-2528000000.0-1723000000.0-2190000000.0-1564000000.0-2283000000.0-973000000.0-1263000000.0-1842000000.0-1578000000.0-1995000000.0-1282000000.0-1077000000.0-922000000.0-1361000000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-80.4-86.4-72.9-43.2-182.8-53.1-78.2-48.2-111.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-48.1-59.2-32.4-34.4-25.7-37.6

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-1458000000.0-2061000000.0-1362000000.0-1274000000.0-1173000000.0-1511000000.0-946000000.0-1321000000.0-1288000000.0-1539000000.0-1067000000.0-1036000000.0-1727000000.0-791000000.0-914000000.0
Percentage of NetCashProvidedByUsedInInvestingActivities46.555.538.165.516.963.229.578.335.173.980.558.446.370.259.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-37.4-47.9-27.8-28.3-30.9-33.6-23.1-37.7-39.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany-58.30.00.00.0-45.10.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value3961135047162514275559885-1211311116970161678696-5271332193315774519275843-684-348753821058136217-3161442
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax101.631.49.613.937.6123.521.6-3.539.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.011.631.43.46.9-8.839.8

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value11851021-38815-18684-62806681144-373-222932248-521
Percentage of NetCashProvidedByUsedInFinancingActivities29.975.6-82.42.4-1.312.3-71.0-0.051.097.9-532.9-1387.555.535.698.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax30.423.7-7.90.3-0.515.2-15.30.020.20.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany47.40.00.00.0-0.70.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value189419122962168415971368229216431290125319951801136410422024172515451603157917531181153215201431101710828351008983852896
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax48.644.560.437.442.030.455.946.939.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.033.024.825.431.423.724.7

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value121194717781320113687616671291588441141512847695751467
Percentage of NetCashProvidedByUsedInOperatingActivities63.949.560.078.471.164.072.778.645.635.270.971.356.455.272.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax31.122.036.329.329.919.540.736.917.80.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany48.40.00.00.043.70.00.00.00.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value42197587912346804221007795442821558477931583966753540636507879716650884660492430327698610272429415607461667407580268263720417556349533370364
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax10.822.717.927.417.99.424.622.7134.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.015.915.98.312.710.816.613.717.39.314.68.67.715.311.615.49.511.99.79.8

dei:LegalEntity

nee:NextEraEnergyPartners



Period End2020-03-312019-03-31
Value-222-22
Percentage of NetIncomeLoss-52.7-3.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-5.7-0.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:NextEraEnergyPartners0.00.0

us-gaap:ConsolidationItems

nee:CorporateAndEliminations



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-579-247-135-246139-10518
Percentage of NetIncomeLoss-137.5-28.1-10.9-36.213.8-13.20.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-14.8-5.0-3.0-6.53.4-3.00.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:CorporateAndEliminations0.00.00.00.00.00.00.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value31847736766130125021427439261894292301476360307234
Percentage of NetIncomeLoss75.548.941.853.644.359.221.334.588.787.934.538.030.137.340.843.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax8.211.17.514.77.95.65.27.8119.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments nee:NexteraEnergyResources0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value30884479811396063149437013831206885680415911017789544637510881720650884664492-14327698610-34
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax7.919.616.325.315.97.023.020.0116.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.015.915.9-1.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value642400683663588407654626484343
Percentage of ProfitLoss208.447.485.658.297.0129.669.489.312.616.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.59.313.914.715.59.016.017.914.70.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany25.70.00.00.022.60.00.00.00.00.0

nee:NextEraEnergyPartners



Period End2020-03-312019-03-31
Value-720-121
Percentage of ProfitLoss-233.8-20.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-18.5-3.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:NextEraEnergyPartners0.00.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, nee:FloridaPowerLightCompany



Period End2020-03-31
Value642
Percentage of ProfitLoss208.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments nee:FloridaPowerLightCompany0.0

us-gaap:OperatingSegments, nee:GulfPowerSegment



Period End2020-03-312019-03-31
Value4037
Percentage of ProfitLoss13.06.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.01.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments nee:GulfPowerSegment0.00.0

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value-112-81-95-74-108-64-94-597-8710118513741320
Percentage of ProfitLoss-36.4-10.2-8.3-12.2-34.4-6.8-13.4-15.6-4.21.21.40.55.04.70.70.20.60.20.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-2.9-1.7-2.1-1.9-2.4-1.6-2.7-18.10.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value42187912346804091005781442821558477931583966753557636507879716650884660491430
Percentage of ProfitLoss136.7110.2108.3112.2130.3106.6111.4115.6104.298.998.699.595.095.4102.499.899.499.899.4100.0100.099.499.8-3071.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax10.817.927.417.99.124.522.3134.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value42187912346804091005781442821558477931583966753557636507879716650884660491430
Percentage of ProfitLoss136.7110.2108.3112.2130.3106.6111.4115.6104.298.998.699.595.095.4102.499.899.499.899.4100.0100.099.499.8-3071.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax10.817.927.417.99.124.522.3134.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:RetainedEarnings, nee:FloridaPowerLightCompany



Period End2020-03-312019-03-31
Value642588
Percentage of ProfitLoss208.497.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.515.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings nee:FloridaPowerLightCompany0.00.0

Increase Decrease In Inventories

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value-3135-3714-3572-1946-6945-2389-3206-1688-3667-2083-1326-1775-3734-1127-1546-1756-3681-2528-1723-2190-1564-2283-973-1263-1842-1578-1995-1282-1077-922-1361
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-80.4-86.4-72.9-43.2-182.8-53.1-78.2-48.2-111.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-48.1-59.2-32.4-34.4-25.7-37.6

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-1458-2061-1362-1274-1173-1511-946-1321-1288-1539-1067-1036-1727-791-914
Percentage of NetCashProvidedByUsedInInvestingActivities46.555.538.165.516.963.229.578.335.173.980.558.446.370.259.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-37.4-47.9-27.8-28.3-30.9-33.6-23.1-37.7-39.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany-58.30.00.00.0-45.10.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value3961135047162514275559885-1211311116970161678696-5271332193315774519275843-684-348753821058136217-3161442
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax101.631.49.613.937.6123.521.6-3.539.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.011.631.43.46.9-8.839.8

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value11851021-38815-18684-62806681144-373-222932248-521
Percentage of NetCashProvidedByUsedInFinancingActivities29.975.6-82.42.4-1.312.3-71.0-0.051.097.9-532.9-1387.555.535.698.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax30.423.7-7.90.3-0.515.2-15.30.020.20.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax nee:FloridaPowerLightCompany47.40.00.00.0-0.70.00.00.00.00.00.00.00.00.00.0

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value435429963369478627683711153107118043158242520826891013213512591250231017561512194810151520746556235661252201785800
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value15580800105564315405941000176100200159150
Percentage of ProceedsFromIssuanceOfLongTermDebt35.80.023.722.023.241.50.055.555.455.80.00.029.015.77.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value3121931168517101665091379272942288820071337548656165862936787516941233170106214131558717923134739252167102
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value284103610391178211787809380350229
Percentage of RepaymentsOfLongTermDebt91.00.52.10.623.52.256.74.083.528.01.90.06.40.013.8
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations nee:FloridaPowerLightCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Payments Of Dividends

us-gaap:PaymentsOfDividends



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value685611600599598531523524523463462460460407402402401354348342341316315315315279248230229206204
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments Of Dividends

us-gaap:PaymentsOfDividends



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value685611600599598531523524523463462460460407402402401354348342341316315315315279248230229206204
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value3121931168517101665091379272942288820071337548656165862936787516941233170106214131558717923134739252167102
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value284103610391178211787809380350229
Percentage of RepaymentsOfLongTermDebt91.00.52.10.623.52.256.74.083.528.01.90.06.40.013.8
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations nee:FloridaPowerLightCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrument, dei:LegalEntity

us-gaap:DebtInstrumentInterestRateStatedPercentage

nee:DebenturesRelatedToNexteraEnergysEquityUnits, nee:NextEraEnergyCapitalHoldingsInc.



Period End2020-03-312019-09-30
Value0.01840.021
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations nee:DebenturesRelatedToNexteraEnergysEquityUnits nee:NextEraEnergyCapitalHoldingsInc.0.00.0

nee:FirstMortgageBonds, nee:FloridaPowerLightCompany



Period End2020-03-312019-06-30
Value0.02850.0399
Percentage of DebtInstrumentInterestRateStatedPercentage154.90.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations nee:FirstMortgageBonds nee:FloridaPowerLightCompany0.00.0

us-gaap:SubsequentEventType

us-gaap:SubsequentEvent



Period End2020-04-23
Value0.0275
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations us-gaap:SubsequentEvent0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value-3.2190.026000000000000010.0680.0980.11-0.0160000000000000140.120.250.25-0.430.30.260.30.00500000000000000440.350.290.290.0080000000000000070.320.280.310.0130000000000000120.30.370.260.30.260.670.270.290.250.280.2-0.140.250.160.28
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-03-31
Value0.1760.209
Percentage of EffectiveIncomeTaxRateContinuingOperations-5.5190.0

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

Deferred Tax Assets Valuation Allowance

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

Operating Lease Right Of Use Asset

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value383411081558170313415253721736908198317699438001529772765
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period 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
Value11331952882601992542051121421741201381271539852
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents29.617.618.515.314.84.828.415.215.68.86.814.615.910.012.76.8

Proceeds From Repayments Of Short Term Debt

nee:AOCIImpactofNEPDeconsolidation



Period 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
Value100000000580000
Percentage of AOCIImpactofNEPDeconsolidation100.00.00.00.00.00.00.00.0100.00.00.00.00.0

us-gaap:StatementEquityComponents

nee:AccumulatedIncomeLossRelatedToEquityMethodInvestee



Period End2020-03-312018-12-312018-09-302018-06-302018-03-31
Value000018
Percentage of AOCIImpactofNEPDeconsolidation0.00.00.00.031.0

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges



Period End2020-03-312018-12-312018-09-302018-06-302018-03-31
Value230003
Percentage of AOCIImpactofNEPDeconsolidation230.00.00.00.05.2

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312018-12-312018-09-302018-06-302018-03-31
Value-1300037
Percentage of AOCIImpactofNEPDeconsolidation-130.00.00.00.063.8

nee:CapitalExpendituresOfPublicUtility



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value13941957130111981104151910791248116614981028961168780084799611339888918287218326675699998101084813658668794
Percentage of CapitalExpendituresOfPublicUtility100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value139419571301119811041519107912481166149810289611687800847
Percentage of CapitalExpendituresOfPublicUtility100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:ComprehensiveIncomeLossNetofTaxandDeconsolidationIncludingPortionAttributabletoNoncontrollingInterest



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value279808116158295870638709018481632
Percentage of ComprehensiveIncomeLossNetofTaxandDeconsolidationIncludingPortionAttributabletoNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:CostRecoveryClausesAndFranchiseFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value10-62-196624114630247-21-516-161726-13-124-62-568-66-26-47144-4-1948-9361-208-392
Percentage of CostRecoveryClausesAndFranchiseFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0-73-176452714630247-21-516-161726
Percentage of CostRecoveryClausesAndFranchiseFees0.0117.789.872.665.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:DecreaseInJointVentureInvestmentsAcquisition



Period End2020-03-312019-03-31
Value1450
Percentage of DecreaseInJointVentureInvestmentsAcquisition100.00.0

nee:DepreciationAndAmortizationExcludingNuclearFuel



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value8489691295118177210921131831857-2191070886619815983742537749798737547692782614463605500419467335320496408331531386414
Percentage of DepreciationAndAmortizationExcludingNuclearFuel100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value402519853776375773804511545-581704537273444587400
Percentage of DepreciationAndAmortizationExcludingNuclearFuel47.453.665.965.748.670.871.161.563.6265.365.860.644.154.559.753.9

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

nee:DisposalGroupNotDiscontinuedOperationGainLossOnDisposalNetOfTax

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, nee:TwosolargenerationfacilitieslocatedinSpain, us-gaap:SubsequentEvent



Period End2020-02-11
Value250
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposalNetOfTax100.0

nee:DisposalGroupNotDiscontinuedOperationImpactonDisposal



Period End2020-03-312019-03-31
Value100
Percentage of DisposalGroupNotDiscontinuedOperationImpactonDisposal100.00.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-31
Value10
Percentage of DisposalGroupNotDiscontinuedOperationImpactonDisposal100.0

us-gaap:NoncontrollingInterest



Period End2020-03-31
Value0
Percentage of DisposalGroupNotDiscontinuedOperationImpactonDisposal0.0

us-gaap:Parent



Period End2020-03-31
Value10
Percentage of DisposalGroupNotDiscontinuedOperationImpactonDisposal100.0

nee:DisposalGroupNotDiscontinuedOperationImpactonDisposaltax



Period End2020-03-312019-03-31
Value190
Percentage of DisposalGroupNotDiscontinuedOperationImpactonDisposaltax100.00.0

nee:EffectiveIncomeTaxRateReconciliationProductionAndInvestmentTaxCredits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.865-0.0070000000000000060.1150.0520.0830.0059999999999999980.0520.059
Percentage of EffectiveIncomeTaxRateReconciliationProductionAndInvestmentTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique, nee:FairValueInputsTransactionType, nee:SignificantUnobservableInputs

nee:FairValueInputsExpectedRates

srt:Maximum, nee:FullRequirementsAndUnitContingentContracts, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:FullRequirementsAndUnitContingentContracts, nee:CustomerMigrationRate



Period End2020-03-312019-12-312019-09-30
Value0.13-0.060.0
Percentage of FairValueInputsExpectedRates100.0100.00.0

srt:Maximum, nee:OptionContractsPower, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsPower, nee:ImpliedCorrelations



Period End2020-03-312019-12-312019-09-30
Value0.84-0.120.0
Percentage of FairValueInputsExpectedRates646.2200.00.0

srt:Maximum, nee:OptionContractsPower, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsPower, nee:ImpliedVolatilities



Period End2020-03-312019-12-312019-09-30
Value2.952.8899999999999997-2.8500000000000005
Percentage of FairValueInputsExpectedRates2269.2-4816.70.0

srt:Maximum, nee:OptionContractsPrimarilyGas, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsGas, nee:ImpliedCorrelations



Period End2020-03-312019-12-312019-09-30
Value1.0-0.120.0
Percentage of FairValueInputsExpectedRates769.2200.00.0

srt:Maximum, nee:OptionContractsPrimarilyGas, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsGas, nee:ImpliedVolatilities



Period End2020-03-312019-12-312019-09-30
Value2.780.6600000000000001-0.45999999999999996
Percentage of FairValueInputsExpectedRates2138.5-1100.00.0

srt:Minimum, nee:OptionContractsPower, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsPower, nee:ImpliedCorrelations



Period End2020-03-312019-12-312019-09-30
Value0.310.00.0
Percentage of FairValueInputsExpectedRates238.5-0.00.0

srt:Minimum, nee:OptionContractsPower, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsPower, nee:ImpliedVolatilities



Period End2020-03-312019-12-312019-09-30
Value0.130.009999999999999995-0.009999999999999995
Percentage of FairValueInputsExpectedRates100.0-16.70.0

srt:Minimum, nee:OptionContractsPrimarilyGas, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsGas, nee:ImpliedCorrelations



Period End2020-03-312019-12-312019-09-30
Value0.310.00.0
Percentage of FairValueInputsExpectedRates238.5-0.00.0

srt:Minimum, nee:OptionContractsPrimarilyGas, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsGas, nee:ImpliedVolatilities



Period End2020-03-312019-12-312019-09-30
Value0.140.00.0
Percentage of FairValueInputsExpectedRates107.7-0.00.0

srt:WeightedAverage, nee:FullRequirementsAndUnitContingentContracts, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:FullRequirementsAndUnitContingentContracts, nee:CustomerMigrationRate



Period End2020-03-31
Value0.0
Percentage of FairValueInputsExpectedRates0.0

srt:WeightedAverage, nee:OptionContractsPower, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsPower, nee:ImpliedCorrelations



Period End2020-03-31
Value0.5
Percentage of FairValueInputsExpectedRates384.6

srt:WeightedAverage, nee:OptionContractsPower, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsPower, nee:ImpliedVolatilities



Period End2020-03-31
Value0.45
Percentage of FairValueInputsExpectedRates346.2

srt:WeightedAverage, nee:OptionContractsPrimarilyGas, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsGas, nee:ImpliedCorrelations



Period End2020-03-31
Value0.53
Percentage of FairValueInputsExpectedRates407.7

srt:WeightedAverage, nee:OptionContractsPrimarilyGas, us-gaap:FairValueInputsLevel3, nee:OptionsModelsValuationTechnique, nee:OptionContractsGas, nee:ImpliedVolatilities



Period End2020-03-31
Value0.36
Percentage of FairValueInputsExpectedRates276.9

us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique, nee:FairValueInputsTransactionType, nee:SignificantUnobservableInputs

nee:FairValueInputsOfferedQuotesPricePerEnergyUnit

srt:Maximum, nee:ForwardContractsPower, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:ForwardContractsPower, nee:ForwardPrice



Period End2020-03-312019-12-312019-09-30
Value194.077.0-60.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit100.0100.0100.0

srt:Maximum, nee:ForwardcontractsCongestion, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:ForwardcontractsCongestion, nee:ForwardPrice



Period End2020-03-31
Value32.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit16.5

srt:Maximum, nee:ForwardcontractsGas, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:ForwardcontractsGas, nee:ForwardPrice



Period End2020-03-312019-12-312019-09-30
Value6.0-1.00.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit3.1-1.3-0.0

srt:Maximum, nee:FullRequirementsAndUnitContingentContracts, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:FullRequirementsAndUnitContingentContracts, nee:ForwardPrice



Period End2020-03-312019-12-312019-09-30
Value748.0302.0238.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit385.6392.2-396.7

srt:Minimum, nee:ForwardContractsPower, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:ForwardContractsPower, nee:ForwardPrice



Period End2020-03-312019-12-312019-09-30
Value2.01.06.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit1.01.3-10.0

srt:Minimum, nee:ForwardcontractsCongestion, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:ForwardcontractsCongestion, nee:ForwardPrice



Period End2020-03-31
Value-13.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit-6.7

srt:Minimum, nee:ForwardcontractsGas, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:ForwardcontractsGas, nee:ForwardPrice



Period End2020-03-312019-12-312019-09-30
Value1.01.00.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit0.51.3-0.0

srt:Minimum, nee:FullRequirementsAndUnitContingentContracts, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:FullRequirementsAndUnitContingentContracts, nee:ForwardPrice



Period End2020-03-312019-12-312019-09-30
Value6.0-2.032.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit3.1-2.6-53.3

srt:WeightedAverage, nee:ForwardContractsPower, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:ForwardContractsPower, nee:ForwardPrice



Period End2020-03-31
Value26.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit13.4

srt:WeightedAverage, nee:ForwardcontractsCongestion, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:ForwardcontractsCongestion, nee:ForwardPrice



Period End2020-03-31
Value0.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit0.0

srt:WeightedAverage, nee:ForwardcontractsGas, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:ForwardcontractsGas, nee:ForwardPrice



Period End2020-03-31
Value2.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit1.0

srt:WeightedAverage, nee:FullRequirementsAndUnitContingentContracts, us-gaap:FairValueInputsLevel3, nee:DiscountedCashFlowValuationTechnique, nee:FullRequirementsAndUnitContingentContracts, nee:ForwardPrice



Period End2020-03-31
Value46.0
Percentage of FairValueInputsOfferedQuotesPricePerEnergyUnit23.7

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

nee:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInRegulatoryAssetsAndLiabilities

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value-2021-2-17-12-120142-311240203-1
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInRegulatoryAssetsAndLiabilities100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity

nee:DerivativeFinancialInstrumentsNet, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-2021-2-17-12
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInRegulatoryAssetsAndLiabilities100.00.0100.0100.0100.0100.0100.0100.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

nee:FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value30813553487116168-1155719-184213
Percentage of FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity

nee:DerivativeFinancialInstrumentsNet, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value00000-100
Percentage of FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings0.00.00.00.00.0-0.6-0.00.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

nee:FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInOperatingRevenues

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value31914561482130165-1186429-181219
Percentage of FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInOperatingRevenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

nee:FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInOperatingRevenues

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value405276-23509194111-1344426-140164
Percentage of FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInOperatingRevenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:FuelPurchasedPowerAndInterchangeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value821105512661074967936108389481997811761018899937121796092811761472131613631265156613731397143812621065152612361182191115571404199114551349
Percentage of FuelPurchasedPowerAndInterchangeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value58677894380672983294176571284610368937687411045811
Percentage of FuelPurchasedPowerAndInterchangeExpense71.473.774.575.075.488.986.985.686.986.588.187.785.479.185.984.5

dei:LegalEntity

nee:GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-31412-35-1-14-5-12-47-104168-35178
Percentage of GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:IncreaseInPropertyPlantAndEquipmentAcquisition



Period End2020-03-312019-03-31
Value3530
Percentage of IncreaseInPropertyPlantAndEquipmentAcquisition100.00.0

nee:IndependentPowerInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value149225051371136611432169160592023006175727693337786891110526141812748129664910431035684752972740441633601567
Percentage of IndependentPowerInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:InterestExpenseAggregateExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value1311188746601714711167394226387381430360-387369602509299311280321321316305319288266272259270265265256254247247238
Percentage of InterestExpenseAggregateExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value152152152152139130136141134122121121119114114117
Percentage of InterestExpenseAggregateExpenses11.680.920.425.319.518.381.435.859.331.531.828.133.1-29.530.919.4

nee:InterestIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value13131613121211101822201919212320182122222120182122201919202220211621222818
Percentage of InterestIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

nee:Marketablesecuritiesunrealizedgainlossrecognizedduringtheperiodonsecuritiesstillheld

us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-80828021116367-48519278-20
Percentage of Marketablesecuritiesunrealizedgainlossrecognizedduringtheperiodonsecuritiesstillheld100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType, dei:LegalEntity

us-gaap:EquitySecurities, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-5021831877234-29813060
Percentage of Marketablesecuritiesunrealizedgainlossrecognizedduringtheperiodonsecuritiesstillheld62.165.485.766.463.861.467.776.9

nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity

nee:NaturalGasAndOrOilElectricGeneratingFacilityCapacity

nee:VariableInterestEntitiesGasAndOilPrimaryBeneficiary, nee:NexteraEnergyResources



Period End2020-03-31
Value1450.0
Percentage of NaturalGasAndOrOilElectricGeneratingFacilityCapacity100.0

nee:NuclearFuelAndOtherAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-31
Value74721882906049606762677172258774114921028890868982888176
Percentage of NuclearFuelAndOtherAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value42454540453434364045252495155
Percentage of NuclearFuelAndOtherAmortization56.862.5250.048.850.056.769.460.059.76.577.673.268.1204.063.2

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType, dei:LegalEntity

nee:NumberOfGenerationFacilitiesSold

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, nee:TwosolargenerationfacilitieslocatedinSpain, us-gaap:SubsequentEvent, nee:NexteraEnergyResources



Period End2020-02-11
Value2.0
Percentage of NumberOfGenerationFacilitiesSold100.0

nee:OtherCapitalExpenditures



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value1-9207418213496218912162482632466043-150103251053451402461146501061415
Percentage of OtherCapitalExpenditures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value0011-1-112211-1133-1-32-33-2-30-3-2051-4-21-15000
Percentage of OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeNetOfTax0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.00.00.00.0

nee:OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-03-31
Value0-111-101-1101-1050-1-21-21-1-20-2-1030-31-40
Percentage of OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeTax0.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.00.0100.0100.0100.00.0

nee:OtherThanTemporaryImpairmentLossesOnSecuritiesHeldInNuclearDecommissioningFunds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302012-09-302011-09-302010-09-30
Value-32881139117-2113013-20-1000-4-2-8-24-5-4-4-30-1
Percentage of OtherThanTemporaryImpairmentLossesOnSecuritiesHeldInNuclearDecommissioningFunds100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:PaymentsToAcquireBusinessesGrossAndRelatedCapitalExpenditures



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value34023722415345510000
Percentage of PaymentsToAcquireBusinessesGrossAndRelatedCapitalExpenditures100.0100.0100.0100.0100.00.00.00.00.0

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:PlannedNewGenerationToBeAddedover5Years

nee:SolarExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-30
Value1580.0-345.0420.0
Percentage of PlannedNewGenerationToBeAddedover5Years100.0100.0100.0

nee:WindExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-30
Value4215.0-415.0-970.0
Percentage of PlannedNewGenerationToBeAddedover5Years266.8120.3-231.0

us-gaap:StatementEquityComponents

nee:PremiumOnPubliclyTradedEquityUnitsKnownAsCorporateUnits

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-09-302016-12-312015-12-31
Value25312000
Percentage of PremiumOnPubliclyTradedEquityUnitsKnownAsCorporateUnits100.0100.00.00.0

us-gaap:Parent



Period End2020-03-312019-09-302016-12-312015-12-31
Value25312000
Percentage of PremiumOnPubliclyTradedEquityUnitsKnownAsCorporateUnits100.0100.00.00.0

nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity

nee:SolarGeneratingFacilityCapability

nee:PhotovoltaicSolarFacility, nee:IndirectSubsidiaryofNextEraEnergyResources



Period End2020-03-31
Value409.3
Percentage of SolarGeneratingFacilityCapability100.0

nee:VariableInterestEntitiesWindandSolarPrimaryBeneficiaryMember, nee:NexteraEnergyResources



Period End2020-03-31
Value473.0
Percentage of SolarGeneratingFacilityCapability115.6

us-gaap:AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax



Period 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-52000000.0-49000000.0-50000000.0-35000000.0-51000000.0-29000000.0-37000000.0-51000000.0-51000000.0-50000000.0-48000000.0-10000000.0-43000000.0
Percentage of AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount



Period End2020-03-312019-09-302019-06-302019-03-312018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value62000010111100850500600310014114978
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease



Period End2020-03-31
Value-6000000.0
Percentage of AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease100.0

us-gaap:StatementEquityComponents

nee:AccumulatedIncomeLossRelatedToEquityMethodInvestee



Period End2020-03-31
Value0.0
Percentage of AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease-0.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-31
Value0.0
Percentage of AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease-0.0

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges



Period End2020-03-31
Value0.0
Percentage of AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease-0.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-31
Value0.0
Percentage of AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease-0.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-31
Value-6000000.0
Percentage of AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease100.0

us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains

us-gaap:DebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value30212117919520
Percentage of AvailableForSaleSecuritiesGrossRealizedGains100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, dei:LegalEntity

us-gaap:DebtSecurities, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value251415959215
Percentage of AvailableForSaleSecuritiesGrossRealizedGains83.366.771.452.955.647.440.075.0

us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:DebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value17141411926926
Percentage of AvailableForSaleSecuritiesGrossRealizedLosses100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, dei:LegalEntity

us-gaap:DebtSecurities, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value159115415520
Percentage of AvailableForSaleSecuritiesGrossRealizedLosses88.264.378.645.544.457.755.676.9

us-gaap:CapitalExpendituresIncurredButNotYetPaid



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value31941502557-360187417519113316399937483169729717256781252776645563632-207142219802674884499
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value55212396-12458589-28-153641268-774243518940
Percentage of CapitalExpendituresIncurredButNotYetPaid17.38.217.234.431.250.9-14.7-115.039.127.0-10.313.344.819.55.5

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
Value2726-450-145362-39124532-15-172-1075214826143-729
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period 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
Value938-932861-554993-30-3254-1811-26
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect34.420.7-19.316.91.41.1-620.017.43.025.2-2.27.73.6

us-gaap:CommonStockDividendsPerShareCashPaid



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1.41.251.251.251.251.111.111.111.110.98250.98250.98250.98250.870.870.870.870.770.770.770.770.7250.7250.7250.7250.660.660.660.660.60.60.60.60.550.550.550.550.50.50.50.50.47250.47250.47250.4725
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value-18013323-118220-921601241271-2191430321565464360192214314331255262489255271190363134147910270
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value212-4-22-133203-15-733265-8258812427536376
Percentage of DeferredIncomeTaxExpenseBenefit-117.8-3.0-95.7112.792.316.3-45.62.420.83.7136.738.648.778.221.1

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-03-31
Value-10
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.00.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-03-31
Value-40
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses400.00.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-4-3-4-4-4-3-4-4-4-4-4-2000-1
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value00000000000-10001
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.050.00.00.00.0-100.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0000000000000100
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets0.00.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value80777878796969696968676867656565
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets0.00.00.00.00.00.00.00.00.00.00.00.00.06500.00.00.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2233322222222334
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value23282828292020202020212121272626
Percentage of DefinedBenefitPlanInterestCost1150.01400.0933.3933.3966.71000.01000.01000.01000.01000.01050.01050.01050.0900.0866.7650.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-1-1-1-1-1-1-2-2-2-2-222333
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-30-27-29-14-30-10-17-31-31-31-306-29-23-23-23
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost3000.02700.02900.01400.03000.01000.0850.01550.01550.01550.01500.0300.0-1450.0-766.7-766.7-766.7

us-gaap:RetirementPlanType, dei:LegalEntity

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-1-1-1-1-1-2-2-2
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0200.0100.0100.0

us-gaap:PensionPlansDefinedBenefit, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-19-18-18-18-18-6-11-20
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost1900.01800.01800.01800.01800.0600.0550.01000.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0000000000010100
Percentage of DefinedBenefitPlanServiceCost0.00.00.00.00.00.00.00.00.00.00.0100.00.0100.00.00.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value21202020201818181817161716151615
Percentage of DefinedBenefitPlanServiceCost0.00.00.00.00.00.00.00.00.00.00.01700.00.01500.00.00.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanSpecialTerminationBenefits

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-2-2-1-160-21-1400760-37-1000
Percentage of DefinedBenefitPlanSpecialTerminationBenefits100.0100.0100.0100.00.0100.0100.00.00.0100.00.0100.0100.00.00.00.0

us-gaap:DepreciationAndAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value8489691295118077210921131831857-2191071886619815983742537749798737547692783613463419320409331386414
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value402519853777375773804511545-581704537273444587
Percentage of DepreciationAndAmortization47.453.665.965.848.670.871.161.563.6265.365.760.644.154.559.7

us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:CommodityContract, us-gaap:Nondesignated, nee:GainsLossesIncludedInOperatingRevenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value625121366276-4384-18742137-84114132291-43264-92330120397178
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignExchangeContract, us-gaap:Nondesignated, nee:GainLossIncludedInInterestExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-7914-1311-1916-17-25452-43621-82155230000
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet-12.611.6-3.64.0475.04.29.1-59.532.8-2.4-3.527.37.2190.75.7-56.59.10.00.00.0

us-gaap:InterestRateContract, us-gaap:Nondesignated, nee:GainLossIncludedInInterestExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-905184-352-204-326-395142-83599-41-145-45696-58-278-1799-1224
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet-144.8152.1-96.2-73.98150.0-102.9-75.9-197.643.1-10.7-36.0-109.8-15.5-1618.6-22.0302.2-54.27.5-3.013.5

us-gaap:HedgingDesignation

us-gaap:Nondesignated



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-385-676-362-71-7523153-69253202-349152388202
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet-61.6-1.627.59050.038.0-178.6168.646.5-52.386.976.5379.346.197.7113.5

us-gaap:DerivativeInstrumentRisk, us-gaap:Position

us-gaap:DerivativeNonmonetaryNotionalAmountEnergyMeasure

nee:CommodityContractNaturalGas, us-gaap:Short



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value158-9635934611142341477040
Percentage of DerivativeNonmonetaryNotionalAmountEnergyMeasure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:Position, dei:LegalEntity

nee:CommodityContractNaturalGas, us-gaap:Long, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-30
Value283-42-47
Percentage of DerivativeNonmonetaryNotionalAmountEnergyMeasure179.143.8-13.1

us-gaap:DerivativeInstrumentRisk, us-gaap:Position

us-gaap:DerivativeNonmonetaryNotionalAmountVolume

nee:CommodityContractOil, us-gaap:Short



Period 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
Value10-3-4-5252091912-13412
Percentage of DerivativeNonmonetaryNotionalAmountVolume100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal



Period 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
Value27328-2354261693916551109623342540
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:InterestRateContract, us-gaap:Nondesignated, nee:GainLossIncludedInInterestExpense, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome



Period End2020-03-31
Value23
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal8.4

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, nee:TwosolargenerationfacilitieslocatedinSpain



Period End2020-03-31
Value260
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal95.2

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, nee:TwosolargenerationfacilitieslocatedinSpain, us-gaap:SubsequentEvent



Period End2020-02-11
Value260
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal0.0

us-gaap:StatementEquityComponents

us-gaap:DividendsCommonStock

us-gaap:Parent



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value685600599598531523524523463462460460407402402401354348342341316315315315
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value685600599598531523524523463462460460407402402401354348342341316315315315
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period 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
Value62-6-19-614-6-926000
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.210.00.210.210.210.00.210.21
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate100.00.0100.0100.0100.00.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential



Period End2020-03-312019-03-31
Value-0.7690.003
Percentage of EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-0.327-0.0020000000000000018-0.02-0.016-0.0230.007999999999999998-0.012-0.022
Percentage of EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.5550.008000000000000007-0.056-0.0920.048-0.002999999999999999-0.041-0.032
Percentage of EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-03-31
Value0.050.038
Percentage of EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization9.079.2

us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-0.9570.009-0.034-0.004-0.0430.004999999999999999-0.030.042
Percentage of EffectiveIncomeTaxRateReconciliationOtherAdjustments100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-03-31
Value-0.027-0.007
Percentage of EffectiveIncomeTaxRateReconciliationOtherAdjustments2.816.3

us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-0.610.00.0430.020.047-0.0009999999999999940.0180.065
Percentage of EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes100.00.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-03-31
Value0.0430.044
Percentage of EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes-7.093.6

us-gaap:EquityMethodInvestmentDividendsOrDistributions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value100101104149848669898482523210
Percentage of EquityMethodInvestmentDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value322313371435192833-35959
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value8147274324272261424338
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity

nee:DerivativeFinancialInstrumentsNet, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value00000-1600
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases0.00.00.00.00.0-59.30.00.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value206911468139-29-655-488377
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity

nee:DerivativeFinancialInstrumentsNet, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-1-2-1-2-20011
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements-0.5-2.2-0.7-2.5-51.3-0.0-16.71.8

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value30302750-45-4400-22-21
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity

nee:DerivativeFinancialInstrumentsNet, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0000-2-100
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel30.00.00.00.04.42.30.00.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-03-31
Value1140
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales100.00.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value387260-29513180114-1313716-142158
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType, dei:LegalEntity

nee:DerivativeFinancialInstrumentsNet, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value00000-100
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings0.00.0-0.00.00.0-0.9-0.00.0

nee:FairValueNetAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByNetAssetLiabilityType

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss

nee:DerivativeFinancialInstrumentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0-26-23217
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss0.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value39-72-175-211627-3821140-2886-9
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-30
Value2974643624944394266552141145155570-29415-4314-6212
Percentage of GainLossOnDispositionOfAssets1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value2418682328313504815345491215155
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value-390146-90-616-1412254197-12566631170443220512793338202-2229164-328181033157
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value-142-433187406-283-82587363-237-191312374-14212526-23-8-22-53823-3544-32410240
Percentage of IncreaseDecreaseInOtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-36-2705922435-3981628851-388351256-29-210161
Percentage of IncreaseDecreaseInOtherCurrentAssets25.462.431.655.2-12.4485.427.624.2-21.5203.1112.568.420.4-168.0619.2

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value-245-240376494-514-64646171-590467150-112261-4212340-14578118117-15239-719-161-219-168-71
Percentage of IncreaseDecreaseInOtherCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-53-37115421831-541357187-5121947035681-663468
Percentage of IncreaseDecreaseInOtherCurrentLiabilities21.6154.641.044.1-6.0845.355.3109.486.841.546.7-317.931.01578.6380.5

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value566-703412312391-1622-17-28-6517050-57-118578161023815709725-4036
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value232010181950-1-520-829-129145432
Percentage of IncreaseDecreaseInOtherNoncurrentAssets41.1333.3-14.352.915.440.7-1.131.290.947.1-103.6198.585.386.0-3.5

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value-15219-40163769-3-20-19-29207-166169-381-34-41-17-3151-432514-246
Percentage of IncreaseDecreaseInOtherNoncurrentLiabilities100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-3110227-3543521-56-19029-428-16
Percentage of IncreaseDecreaseInOtherNoncurrentLiabilities206.74.6-50.00.0-218.8116.275.4-33.3280.0100.0-0.014.025.350.0-177.8

us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:InterestAndFeeIncomeOtherLoans

nee:CashSweepAndCreditSupportAgreement, srt:Subsidiaries



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value28272424182424
Percentage of InterestAndFeeIncomeOtherLoans100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossAttributableToParentDiluted



Period 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
Value42197587912346804231003780441921578477931583
Percentage of NetIncomeLossAttributableToParentDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance

us-gaap:AdditionalPaidInCapital



Period End2020-03-312018-09-30
Value-2-5
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance100.0100.0

us-gaap:NoncontrollingInterest



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value219133-146389-7-46-14
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance-10950.00.00.00.0140.00.00.0

us-gaap:Parent



Period End2020-03-312019-03-312018-09-302018-03-31
Value-2389-5-14
Percentage of NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance100.00.0100.00.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-43615-35-338-2-2568424048-22252418-1-17151-44-125-5147-201181820103
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

nee:AccumulatedIncomeLossRelatedToEquityMethodInvestee



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value011-1-112211-1133-1-32-33-2-30-3-2051
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax-0.016.76.72.93.012.5-100.0-8.01.52.4-2.52.1-13.612.0-4.2-16.7-200.01.85.94.52.4-0.0-6.410.00.025.01.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value00-1-52-10-1-1-237010-3-1400-7-2600-16-4800489006
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax-0.00.0-6.7148.630.3-12.550.08.054.40.025.0-6.263.60.00.0-38.92600.0-0.00.036.438.4-0.00.0-20.075.40.00.05.8

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value000000000000000019-9740-52-77-33-7-181-183665
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax-0.00.00.0-0.0-0.00.0-0.0-0.00.00.00.00.0-0.00.00.00.0-1900.056.778.4118.261.664.7-14.990.00.8-100.0180.063.1

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-8478-1-2-3-536312634133117826-38-71222-1240134630240
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax18.666.746.7-22.93.0-25.0150.020.052.973.865.070.8-59.1124.070.844.4-2600.022.2-13.7-27.3-17.623.585.1-65.039.0166.710.038.8

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-351810-21100-20-610516-24-9820-22-331514-19-617-17-196-23-9
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax81.416.753.3-28.663.6125.0-0.080.0-8.823.812.533.3109.1-36.033.3111.12200.019.329.4-31.815.211.836.285.0-16.133.3-115.0-8.7

us-gaap:OtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-39131022-24-30155-1964454441-15403240-4-16870-36-89-1238-352034119-29-9660-229-87
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

nee:AccumulatedIncomeLossRelatedToEquityMethodInvestee



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value011-1-112211-1133-1-32-33-2-30-3-2051
Percentage of OtherComprehensiveIncomeLossNetOfTax-0.010.04.54.23.36.740.0-10.51.62.2-2.32.4-20.07.5-3.1-7.5-50.01.84.35.63.4-0.0-7.95.70.014.70.8

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value3-1-1-53-13-1-1-238-110-3-1400-7-2600-16-48005007
Percentage of OtherComprehensiveIncomeLossNetOfTax-7.7-10.0-4.5220.843.3-6.7-20.010.559.4-2.222.7-7.393.30.00.0-17.5650.0-0.00.044.453.9-0.00.0-14.30.00.05.9

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value268105777810591717132332-8662-34-3512-11-9-95486
Percentage of OtherComprehensiveIncomeLossNetOfTax-5.160.036.4-41.7-16.746.7140.0-36.812.522.211.422.0-113.342.540.657.5-800.051.288.694.439.3-100.0-28.925.7-45.0158.872.3

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-936100-2-3-62325251832912710-46-10216-1835-1223-234
Percentage of OtherComprehensiveIncomeLossNetOfTax23.130.027.3-41.7-0.0-13.3-60.031.635.955.656.843.9-20.072.537.517.5-250.027.4-14.3-5.6-18.0150.092.134.3115.0-5.928.6

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-331022-24-30165-1963454330-344631541-16469-33-87-1238-35
Percentage of OtherComprehensiveIncomeLossNetOfTax84.6100.0100.0100.0100.0106.7100.0100.098.4100.097.773.2226.7115.096.9135.0-25.097.698.691.797.8100.0100.0100.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-351810-21100-20-610516-24-9820-22-331514-19-617-176-23-9
Percentage of OtherComprehensiveIncomeLossNetOfTax89.710.036.4-41.770.066.70.0105.3-9.422.211.439.0160.0-22.525.050.0550.019.621.4-38.921.350.044.748.630.0-67.6-7.6

us-gaap:NoncontrollingInterest



Period End2020-03-312018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-6001-111119-61-14-5-41-3
Percentage of OtherComprehensiveIncomeLossNetOfTax15.40.0-0.01.6-2.22.326.8-126.7-15.03.1-35.0125.02.41.48.3

us-gaap:Parent



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-331022-24-30165-1963454330-344631541-16469-33-87-1238-35
Percentage of OtherComprehensiveIncomeLossNetOfTax84.6100.0100.0100.0100.0106.7100.0100.098.4100.097.773.2226.7115.096.9135.0-25.097.698.691.797.8100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0-7015213001
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax0.0100.00.0100.0100.0100.00.00.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value00116-1-113216-2-900-4-1600-10-3000300405-8
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.00.00.0100.00.00.0100.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax



Period 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
Value1211-2-100113611610251168310665250746
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax



Period 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
Value-1011-1211-2-10-4-110-7-2-3-1-17-7-2-7-3-4-3-151-4-3-4
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax



Period 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
Value-2-5-6-8-10-5-7-7-7-8-10-5-9-17-17-13-23-13-11-22-18-42-454-9-19-9-18-21
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax



Period 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
Value1-3-1-1-3-15223441-4631013901242526-35115913
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3-1-10-10-1-1-1
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax100.0100.0100.00.0100.00.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1000000.00.0-1000000.00.0-1000000.00.0-1000000.0-1000000.0-1000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax100.00.0100.00.0100.00.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value-81478-1-2-3-536312634133117826-38-71222-1240133024026-9-47-4312239-3219
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value-402330-1-1-22623192682312718-30-5915-122102212618-631-2711425-2216
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value311-139371-112289-32-15-86-16223-1866922-194708-156802429-16486186478516-2
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-1625-441510-273012-8-76-7-19313757-3
Percentage of OtherOperatingActivitiesCashFlowStatement-5.1-18.0-118.91500.0-8.9-9.3-93.8-80.09.3475.0-3.1103.8198.6259.11.5

us-gaap:PaymentsForProceedsFromNuclearFuel



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value577076729750297811022262012989792689511259491506680912444112476137
Percentage of PaymentsForProceedsFromNuclearFuel100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value424557573619145337131015793751
Percentage of PaymentsForProceedsFromNuclearFuel73.764.375.079.237.138.048.367.933.659.138.575.061.241.664.6

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value-152-38-17677-137-107126-98-4149-18214-3041-7-5479-146102-40-23300-5328-29-16-7-52-33-131
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1321-26-4-1-34-183-3-1911-339-654-4
Percentage of PaymentsForProceedsFromOtherInvestingActivities-8.6-55.314.8-5.20.731.8-145.23.146.322.41.6278.6216.79.857.1

us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:PaymentsToAcquireBusinessesGross

nee:SanteeCooper, us-gaap:SubsequentEvent



Period End2020-02-11
Value8500
Percentage of PaymentsToAcquireBusinessesGross100.0

us-gaap:PaymentsToInvestInDecommissioningFund



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value10841259796108610198738689531039109861572780411181057816838111078222628281066132689414819469731367
Percentage of PaymentsToInvestInDecommissioningFund100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value666969552737596616558694534762371430519670716
Percentage of PaymentsToInvestInDecommissioningFund61.477.069.367.958.570.664.372.851.469.460.359.164.659.967.7

dei:LegalEntity

us-gaap:ProceedsFromContributionsFromParent

nee:FloridaPowerLightCompany



Period 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
Value1200000250-193608500000
Percentage of ProceedsFromContributionsFromParent100.00.00.00.0100.0100.0100.00.0100.00.00.00.00.0

us-gaap:StatementEquityComponents, dei:LegalEntity

us-gaap:AdditionalPaidInCapital, nee:FloridaPowerLightCompany



Period End2020-03-312019-03-31
Value1200250
Percentage of ProceedsFromContributionsFromParent100.0100.0

us-gaap:ProceedsFromDecommissioningFund



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value108111967531093966831791869919114864068473511411026786823110074722337711042128484414519249361347
Percentage of ProceedsFromDecommissioningFund100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value657931522714562609522671430745339409493720696
Percentage of ProceedsFromDecommissioningFund60.877.869.365.358.273.366.077.246.864.953.059.867.163.167.8

us-gaap:ProceedsFromOtherShortTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1625200000504042520002500020000
Percentage of ProceedsFromOtherShortTermDebt100.0100.00.00.00.0100.0100.0100.00.0100.00.00.0100.00.00.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value-72-360127-83-75-97-185-28-62-142-194-93-251-96-71-878-8224-79-6-42-45-17707-4-44-9-520
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-18-6-22-9-12-90-9-19-16-12211-157
Percentage of ProceedsFromPaymentsForOtherFinancingActivities25.01.7-17.310.816.09.3-0.032.130.611.36.2-2.2-4.415.6-9.9

us-gaap:ProceedsFromRepaymentsOfCommercialPaper



Period 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-9400-18662080-44828968-5721277-387-41-1942041-360
Percentage of ProceedsFromRepaymentsOfCommercialPaper100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period 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-12711037-330379-8601051-782-574-12660879-224956-196
Percentage of ProceedsFromRepaymentsOfCommercialPaper135.20.017.718.2192.0363.7-1150.0100.3-9.9-157.1-192.7115.546.854.4

us-gaap:ProceedsFromRepaymentsOfRelatedPartyDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value48-514-211695-24-741670482
Percentage of ProceedsFromRepaymentsOfRelatedPartyDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:DebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value738918612788687662576719
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, dei:LegalEntity

us-gaap:DebtSecurities, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value607822489685543571487653
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt82.289.579.986.979.086.384.590.8

us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value2216141226282422222421252224201725222016119761512122621181371012109
Percentage of PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value16161110242623202124201916191714
Percentage of PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity72.7100.078.683.392.392.995.890.995.5100.095.276.072.779.285.082.4

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-4-4-7-11-3-7-7-64-3-47-7-15-8-22-5531983639-9-152021416
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-31013000-11000000000000011001
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax75.0-25.0-0.0-9.1-100.0-0.0-0.0-0.0-25.0-33.3-0.00.0-0.0-0.0-0.0-0.0-0.00.00.00.00.00.0-0.0-6.75.00.00.06.2

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-2-6-8-10-5-7-7-7-8-10-5-9-17-17-13-23-1131122184245-491991821
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax50.0150.0114.390.9166.7100.0100.0116.7-200.0333.3125.0-128.6242.9113.3162.5104.5205.5366.7115.8225.0116.7115.444.4-60.095.0450.0128.6131.2

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value111-2-10011361161025158-8-3-10-6-6-5-250-7-4-6
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax-25.0-25.0-14.318.233.3-0.0-0.0-16.7325.0-200.0-25.0228.6-142.9-13.3-62.5-4.5-105.5-266.7-15.8-125.0-16.7-15.455.6166.70.0-350.0-28.6-37.5

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent



Period End2020-03-312019-03-31
Value236
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent



Period End2020-03-312019-03-31
Value35
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0

us-gaap:RegulatedAndUnregulatedOperatingRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value461345885572497040754390441840693863401048084404397236994805381738354069495443584104466446544029367436304394383332793375384336673371386443823961313434134691359136223655447338113705
Percentage of RegulatedAndUnregulatedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period 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
Value25402925349131582618293533992908262028773477309125272558328327502303
Percentage of RegulatedAndUnregulatedOperatingRevenue55.163.862.763.564.266.976.971.567.871.772.370.263.669.268.372.060.1

nee:NextEraEnergyPartners



Period End2020-03-312019-03-31
Value212177
Percentage of RegulatedAndUnregulatedOperatingRevenue4.64.3

us-gaap:ConsolidationItems

nee:CorporateAndEliminations



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-28229-6-1-1-4
Percentage of RegulatedAndUnregulatedOperatingRevenue-0.60.40.2-0.1-0.0-0.0-0.1

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2540292534913158261829353399290826202877347730912527255832832750
Percentage of RegulatedAndUnregulatedOperatingRevenue55.163.862.763.564.266.976.971.567.871.772.370.263.669.268.372.0

us-gaap:OperatingSegments, nee:GulfPowerSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value328353440366328
Percentage of RegulatedAndUnregulatedOperatingRevenue7.17.77.97.48.0

us-gaap:OperatingSegments, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value177314471619143711351570101811561241
Percentage of RegulatedAndUnregulatedOperatingRevenue38.431.529.128.927.935.823.028.432.1

dei:LegalEntity

us-gaap:RelatedPartyTransactionAmountsOfTransaction

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value798080777979767573
Percentage of RelatedPartyTransactionAmountsOfTransaction100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, dei:LegalEntity

srt:ConsolidationEliminations, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2727282628262423
Percentage of RelatedPartyTransactionAmountsOfTransaction34.233.835.033.835.432.931.630.7

us-gaap:RepaymentsOfOtherShortTermDebt



Period 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
Value040125455050520002500200300
Percentage of RepaymentsOfOtherShortTermDebt0.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.00.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:CommonStock



Period End2020-03-312019-03-312018-09-302018-06-302017-12-312017-09-302016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0101100000010001
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation0.0100.00.0100.0100.00.00.00.00.00.00.0100.00.00.00.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-09-302018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-511470070099964507881366361313565131313
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Parent



Period End2020-03-312019-09-302018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-511470070099964507881466461514565141414
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0107.7100.2100.3107.7100.0107.7107.7107.7

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value4394730393938545337820343-24115236233013
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Parent



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value4394730393938545337820343-24115236233013
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-03-312018-06-302018-03-31
Value0100
Percentage of StockholdersEquityOther0.0100.00.00.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0-2205-52000003-492500
Percentage of StockholdersEquityOther0.00.00.0500.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value16-14-143-3011-6-4148811-22377242-4-48-9-35-80
Percentage of StockholdersEquityOther0.00.00.0-3000.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-12-31
Value-2-4206-63-11-1003-50250-18-58
Percentage of StockholdersEquityOther0.00.00.0600.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-2-20-11-1100000-18
Percentage of StockholdersEquityOther0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TaxesExcludingIncomeAndExciseTaxes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value406310553416396360396371379340397376339545370101333345377350326312371323320348326305325279251316267278332289
Percentage of TaxesExcludingIncomeAndExciseTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value320328377335317324352322308317353316304281327301
Percentage of TaxesExcludingIncomeAndExciseTaxes78.8105.868.280.580.190.088.986.881.393.288.984.089.751.688.4298.0

us-gaap:UnrealizedGainLossOnDerivativesAndCommodityContracts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-06-302011-03-312010-06-302010-03-31
Value-563243-151402-38634-89-192193-391-31-18316941383-50048-56264309969229-186-124-42132145-231-33324
Percentage of UnrealizedGainLossOnDerivativesAndCommodityContracts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UtilitiesOperatingExpenseMaintenanceAndOperations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8301064863900815882830848771
Percentage of UtilitiesOperatingExpenseMaintenanceAndOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value317449345387340395385388347422362404371397403410
Percentage of UtilitiesOperatingExpenseMaintenanceAndOperations38.242.240.043.041.744.846.445.845.00.00.00.00.00.00.00.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value2433443432232136664332222222222
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:EntityCommonStockSharesOutstanding



Period End2020-03-312020-01-312019-09-302019-06-302019-03-312019-01-312018-09-302018-06-302018-03-312018-01-312017-09-302017-06-302017-03-312017-01-312016-09-302016-06-302016-03-312016-01-312015-09-302015-06-302015-03-312015-01-312014-09-302014-06-302014-03-312014-01-312013-09-302013-06-302013-03-312013-01-312012-09-302012-06-302012-03-312012-01-312011-09-302011-06-30
Value489488488479478478477471471470470469468467467461461460460452444443436436436435430424424423423422417416422422
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:AccruedInterestAndTaxes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value7115581115853619477931737696622873744706480861666543449883706558474831694555473783619479414703625501464683622487462466
Percentage of AccruedInterestAndTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value415266773647467376868522397439637645240
Percentage of AccruedInterestAndTaxes58.447.769.375.875.478.893.270.857.070.673.086.750.0

nee:AccumulatedDepreciationAndAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value25884251682474823915233642174921753210922091921367214602104820768201012024619583194261894419370189541844517934178441740217061167281645615951156661550415737154531529315062151061528715368151461409113117
Percentage of AccumulatedDepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:AccumulatedOtherComprehensiveIncomeLossNoncontrollingInterestAndParentNetofTax



Period End2020-03-31
Value-198
Percentage of AccumulatedOtherComprehensiveIncomeLossNoncontrollingInterestAndParentNetofTax100.0

us-gaap:StatementEquityComponents

nee:AccumulatedIncomeLossRelatedToEquityMethodInvestee



Period End2020-03-31
Value3
Percentage of AccumulatedOtherComprehensiveIncomeLossNoncontrollingInterestAndParentNetofTax-1.5

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-31
Value-111
Percentage of AccumulatedOtherComprehensiveIncomeLossNoncontrollingInterestAndParentNetofTax56.1

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges



Period End2020-03-31
Value-2
Percentage of AccumulatedOtherComprehensiveIncomeLossNoncontrollingInterestAndParentNetofTax1.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-31
Value2
Percentage of AccumulatedOtherComprehensiveIncomeLossNoncontrollingInterestAndParentNetofTax-1.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-31
Value-90
Percentage of AccumulatedOtherComprehensiveIncomeLossNoncontrollingInterestAndParentNetofTax45.5

nee:AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBbbOrBaa2



Period 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
Value1502151401601102701651259514513013075110200185350250250370500700400300300400300400300400350700
Percentage of AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBbbOrBaa2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBelowInvestmentGrade



Period 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
Value11001200950130011001500120012001100120011001000960990220020002500250023002500260028002400230022002300220022002100230022002700
Percentage of AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBelowInvestmentGrade100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value3035404030454545045000
Percentage of AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBelowInvestmentGrade2.72.94.23.12.73.03.83.80.03.80.00.00.0

nee:AdditionalCollateralAggregateFairValueDueToOtherFinancialMeasures



Period 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
Value1400590900555800610280350195210220245220225530500385660720770750850700700800800700800750700600600
Percentage of AdditionalCollateralAggregateFairValueDueToOtherFinancialMeasures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value60751151201001451351308595140150115
Percentage of AdditionalCollateralAggregateFairValueDueToOtherFinancialMeasures4.312.712.821.612.523.848.237.143.645.263.661.251.1

dei:LegalEntity

nee:AmountOfSublimitForNonNuclearPerilsPerOccurrencePerSiteUnderNuclearInsuranceMutualCompaniesForPropertyDamageDecontaminationAndPrematureDecommissioningRisks

nee:DuaneArnoldEnergyCenterInsurance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value5005005005005001000100010001000
Percentage of AmountOfSublimitForNonNuclearPerilsPerOccurrencePerSiteUnderNuclearInsuranceMutualCompaniesForPropertyDamageDecontaminationAndPrematureDecommissioningRisks100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:ElectricUtilityPlantInServiceAndOtherProperty



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value977179609393106911478910681986797168053579611853378404583317815548015076559750827364872606707566962168691680426622365005634286269961355603925772557054542625247951485507684992950944492084884146330
Percentage of ElectricUtilityPlantInServiceAndOtherProperty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType, dei:LegalEntity

nee:GeneratingFacilityCapacity

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, nee:TwosolargenerationfacilitieslocatedinSpain, us-gaap:SubsequentEvent, nee:NexteraEnergyResources



Period End2020-02-11
Value99.8
Percentage of GeneratingFacilityCapacity100.0

nee:InvestmentsByConsolidatedAndNonconsolidatedEntities

nee:InvestmentsInSpecialPurposeEntities

nee:VariableInterestEntityOther



Period End2020-03-312019-12-31
Value28353247
Percentage of InvestmentsInSpecialPurposeEntities100.0100.0

nee:InvestmentsByConsolidatedAndNonconsolidatedEntities, dei:LegalEntity

nee:VariableInterestEntityOther, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-31
Value23302717
Percentage of InvestmentsInSpecialPurposeEntities82.283.7

nee:LettersOfCreditAlreadyPostedAggregateFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-06-30
Value62885876688166252026424330566118212318831172365339732107885150360
Percentage of LettersOfCreditAlreadyPostedAggregateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis

nee:LongTermDebtIncludingCurrentMaturitiesFairValueAndCarryingValue

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312018-12-31
Value436053966729498
Percentage of LongTermDebtIncludingCurrentMaturitiesFairValueAndCarryingValue100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312018-12-31
Value457914292830043
Percentage of LongTermDebtIncludingCurrentMaturitiesFairValueAndCarryingValue105.0108.2101.8

us-gaap:FairValueByMeasurementBasis, dei:LegalEntity

us-gaap:CarryingReportedAmountFairValueDisclosure, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312018-12-31
Value154221416111783
Percentage of LongTermDebtIncludingCurrentMaturitiesFairValueAndCarryingValue35.435.739.9

us-gaap:EstimateOfFairValueFairValueDisclosure, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312018-12-31
Value177211644812613
Percentage of LongTermDebtIncludingCurrentMaturitiesFairValueAndCarryingValue40.641.542.8

nee:NuclearFuel



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value183917551746166818541740190118691834176720112038222621312154207321532067223120932048200621502062216620591938183818601895199419521889179517071519158615391414
Percentage of NuclearFuel100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

nee:OtherInvestmentsDebtSecuritiesfairvaluedisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-31
Value6582105106783644473234327681017839151051111
Percentage of OtherInvestmentsDebtSecuritiesfairvaluedisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-31
Value7969676869908789103103109137138153166153161132169180170107106
Percentage of OtherInvestmentsDebtSecuritiesfairvaluedisclosure121.584.163.864.288.5250.0197.7189.4321.9302.9340.61957.12300.01912.51660.0900.02012.5338.51126.71800.03400.0972.7963.6

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-31
Value144151172174147126131136135137141144144161176170169171184190175118117
Percentage of OtherInvestmentsDebtSecuritiesfairvaluedisclosure221.5184.1163.8164.2188.5350.0297.7289.4421.9402.9440.62057.12400.02012.51760.01000.02112.5438.51226.71900.03500.01072.71063.6

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

nee:OtherInvestmentsEquitySecuritiesFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value303418181613161622252323262925293038393535394344514559437121410443
Percentage of OtherInvestmentsEquitySecuritiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value11121212121112121210101010999110001101000000000001
Percentage of OtherInvestmentsEquitySecuritiesFairValueDisclosure36.735.366.766.775.084.675.075.0600.0500.040.043.543.534.631.036.03.433.30.00.02.92.90.02.30.00.00.00.00.00.00.00.00.00.00.033.3

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value0000000000000000000000710000000000000
Percentage of OtherInvestmentsEquitySecuritiesFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0182.10.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period 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
Value4146303028242828141235333335383430403839363611044445145594371214104454
Percentage of OtherInvestmentsEquitySecuritiesFairValueDisclosure136.7135.3166.7166.7175.0184.6175.0175.0700.0600.0140.0143.5143.5134.6131.0136.0103.4133.3100.0100.0102.9102.9282.1102.3100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0133.3

us-gaap:FairValueByMeasurementBasis

nee:OtherInvestmentsFinancialInstrumentsFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value2330303154
Percentage of OtherInvestmentsFinancialInstrumentsFairValueDisclosure100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value2330303154
Percentage of OtherInvestmentsFinancialInstrumentsFairValueDisclosure100.0100.0100.0100.0100.0

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:PlannedCapitalExpendituresAFUDCFifthYear

nee:GenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-09-302019-06-30
Value302035
Percentage of PlannedCapitalExpendituresAFUDCFifthYear100.0100.0100.0

nee:TransmissionAndDistributionExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-09-302019-06-30
Value353530
Percentage of PlannedCapitalExpendituresAFUDCFifthYear116.7175.085.7

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:PlannedCapitalExpendituresAFUDCFourthYear

nee:GenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value20204050
Percentage of PlannedCapitalExpendituresAFUDCFourthYear100.0100.0100.0100.0

nee:TransmissionAndDistributionExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value40253535
Percentage of PlannedCapitalExpendituresAFUDCFourthYear200.0125.087.570.0

dei:LegalEntity

nee:PlannedCapitalExpendituresFifthYear

nee:FloridaPowerLightCompany



Period 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
Value661063405570592559804195453546204610461545004410
Percentage of PlannedCapitalExpendituresFifthYear100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:GulfPower



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value680680720720270
Percentage of PlannedCapitalExpendituresFifthYear10.310.712.912.24.5

nee:NexteraEnergyResources



Period 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
Value265220220190195190250305335340280310310315330350360370365345390390370345355360290340340335390385380345385445435435
Percentage of PlannedCapitalExpendituresFifthYear4.03.53.93.23.34.55.56.67.37.46.27.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:BatteryStorageExpenditures, nee:NexteraEnergyResources



Period End2020-03-31
Value0
Percentage of PlannedCapitalExpendituresFifthYear0.0

nee:ExistingGenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value885840790810
Percentage of PlannedCapitalExpendituresFifthYear13.413.214.213.7

nee:GeneralAndOtherExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value420470360365
Percentage of PlannedCapitalExpendituresFifthYear6.47.46.56.2

nee:NewGenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value7100550790
Percentage of PlannedCapitalExpendituresFifthYear10.70.09.913.3

nee:NuclearExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value180150140130
Percentage of PlannedCapitalExpendituresFifthYear2.72.42.52.2

nee:NuclearFuelExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value145145120120
Percentage of PlannedCapitalExpendituresFifthYear2.22.32.22.0

nee:OtherExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value60606040
Percentage of PlannedCapitalExpendituresFifthYear0.90.91.10.7

nee:RateRegulatedTransmission, nee:NexteraEnergyResources



Period End2020-03-312019-12-31
Value150
Percentage of PlannedCapitalExpendituresFifthYear0.20.0

nee:TransmissionAndDistributionExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value4450488537503840
Percentage of PlannedCapitalExpendituresFifthYear67.377.167.364.8

nee:WindExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value10102020
Percentage of PlannedCapitalExpendituresFifthYear0.20.20.40.3

dei:LegalEntity

nee:PlannedCapitalExpendituresFourthYear

nee:FloridaPowerLightCompany



Period 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
Value663060455625575558004705472546904640462547454620
Percentage of PlannedCapitalExpendituresFourthYear100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:GulfPower



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value650650665670465
Percentage of PlannedCapitalExpendituresFourthYear9.810.811.811.68.0

nee:NexteraEnergyResources



Period 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
Value195205280265260260235265280280330320310360350425390420375350390375305295305300920410385385430385450430475400395430
Percentage of PlannedCapitalExpendituresFourthYear2.93.45.04.64.55.55.05.76.06.17.06.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:BatteryStorageExpenditures, nee:NexteraEnergyResources



Period End2020-03-31
Value0
Percentage of PlannedCapitalExpendituresFourthYear0.0

nee:ExistingGenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value1155925835775
Percentage of PlannedCapitalExpendituresFourthYear17.415.314.813.5

nee:GeneralAndOtherExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value415380370345
Percentage of PlannedCapitalExpendituresFourthYear6.36.36.66.0

nee:NewGenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value490500505945
Percentage of PlannedCapitalExpendituresFourthYear7.48.39.016.4

nee:NuclearExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value120130170175
Percentage of PlannedCapitalExpendituresFourthYear1.82.23.03.0

nee:NuclearFuelExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value120120165165
Percentage of PlannedCapitalExpendituresFourthYear1.82.02.92.9

nee:OtherExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value50607045
Percentage of PlannedCapitalExpendituresFourthYear0.81.01.20.8

nee:RateRegulatedTransmission, nee:NexteraEnergyResources



Period End2020-03-312019-12-31
Value100
Percentage of PlannedCapitalExpendituresFourthYear0.20.0

nee:SolarExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value5505
Percentage of PlannedCapitalExpendituresFourthYear0.10.10.00.1

nee:TransmissionAndDistributionExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value4450412037503525
Percentage of PlannedCapitalExpendituresFourthYear67.168.266.761.3

nee:WindExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value10102020
Percentage of PlannedCapitalExpendituresFourthYear0.20.20.40.3

us-gaap:Pipelines, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value002020
Percentage of PlannedCapitalExpendituresFourthYear0.00.00.40.3

dei:LegalEntity

nee:PlannedCapitalExpendituresRemainderCurrentYear

nee:FloridaPowerLightCompany



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value487521803625493512652575379515302655
Percentage of PlannedCapitalExpendituresRemainderCurrentYear100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:GulfPower



Period End2020-03-312019-09-302019-06-302019-03-31
Value620465535605
Percentage of PlannedCapitalExpendituresRemainderCurrentYear12.721.314.812.3

nee:NexteraEnergyResources



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value492516753270336014752920314070516301945141026254270121023503275925181025957659751235131023703305115515501930
Percentage of PlannedCapitalExpendituresRemainderCurrentYear101.076.890.268.1116.6113.482.746.161.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:BatteryStorageExpenditures, nee:NexteraEnergyResources



Period End2020-03-31
Value85
Percentage of PlannedCapitalExpendituresRemainderCurrentYear1.7

nee:ExistingGenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-09-302019-06-30
Value750410635
Percentage of PlannedCapitalExpendituresRemainderCurrentYear15.418.817.5

nee:GeneralAndOtherExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-09-302019-06-30
Value560265400
Percentage of PlannedCapitalExpendituresRemainderCurrentYear11.512.211.0

nee:NewGenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-09-302019-06-30
Value980490860
Percentage of PlannedCapitalExpendituresRemainderCurrentYear20.122.523.7

nee:NuclearExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-09-302019-06-30
Value9570130
Percentage of PlannedCapitalExpendituresRemainderCurrentYear1.93.23.6

nee:NuclearFuelExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-09-302019-06-30
Value13550110
Percentage of PlannedCapitalExpendituresRemainderCurrentYear2.82.33.0

nee:OtherExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-09-302019-06-30
Value55060320
Percentage of PlannedCapitalExpendituresRemainderCurrentYear11.32.88.8

nee:RateRegulatedTransmission, nee:NexteraEnergyResources



Period End2020-03-31
Value235
Percentage of PlannedCapitalExpendituresRemainderCurrentYear4.8

nee:SolarExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-09-302019-06-30
Value855545540
Percentage of PlannedCapitalExpendituresRemainderCurrentYear17.525.014.9

nee:TransmissionAndDistributionExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-09-302019-06-30
Value24509651620
Percentage of PlannedCapitalExpendituresRemainderCurrentYear50.344.344.7

nee:WindExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-09-302019-06-30
Value25808051820
Percentage of PlannedCapitalExpendituresRemainderCurrentYear52.936.950.2

us-gaap:Pipelines, nee:NexteraEnergyResources



Period End2020-03-312019-09-302019-06-30
Value525195460
Percentage of PlannedCapitalExpendituresRemainderCurrentYear10.88.912.7

dei:LegalEntity

nee:PlannedCapitalExpendituresSecondYear

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value659563056045599560204875483540253880
Percentage of PlannedCapitalExpendituresSecondYear100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:GulfPower



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value8107708851050915
Percentage of PlannedCapitalExpendituresSecondYear12.312.214.617.515.2

nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value18057854445377037101485333524252135218011251185112557510801300
Percentage of PlannedCapitalExpendituresSecondYear27.412.573.562.961.630.569.060.255.00.00.00.00.00.00.00.0

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:BatteryStorageExpenditures, nee:NexteraEnergyResources



Period End2020-03-31
Value455
Percentage of PlannedCapitalExpendituresSecondYear6.9

nee:ExistingGenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value950970740720
Percentage of PlannedCapitalExpendituresSecondYear14.415.412.212.0

nee:GeneralAndOtherExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value500480545530
Percentage of PlannedCapitalExpendituresSecondYear7.67.69.08.8

nee:NewGenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value88573013801380
Percentage of PlannedCapitalExpendituresSecondYear13.411.622.823.0

nee:NuclearExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value210180160165
Percentage of PlannedCapitalExpendituresSecondYear3.22.92.62.8

nee:NuclearFuelExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value220220205205
Percentage of PlannedCapitalExpendituresSecondYear3.33.53.43.4

nee:OtherExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value55509550
Percentage of PlannedCapitalExpendituresSecondYear0.80.81.60.8

nee:RateRegulatedTransmission, nee:NexteraEnergyResources



Period End2020-03-312019-12-31
Value140110
Percentage of PlannedCapitalExpendituresSecondYear2.11.7

nee:SolarExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value485230605285
Percentage of PlannedCapitalExpendituresSecondYear7.43.610.04.8

nee:TransmissionAndDistributionExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value4040390531753160
Percentage of PlannedCapitalExpendituresSecondYear61.361.952.552.7

nee:WindExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value1802030552935
Percentage of PlannedCapitalExpendituresSecondYear2.70.350.549.0

us-gaap:Pipelines, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value280195530335
Percentage of PlannedCapitalExpendituresSecondYear4.23.18.85.6

dei:LegalEntity

nee:PlannedCapitalExpendituresThirdYear

nee:FloridaPowerLightCompany



Period 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
Value634061206120594556705650379044654410444041554070
Percentage of PlannedCapitalExpendituresThirdYear100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nee:GulfPower



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value645645665700740
Percentage of PlannedCapitalExpendituresThirdYear10.210.510.911.813.1

nee:NexteraEnergyResources



Period 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
Value29528059043051024518459603203851515170014301040159597084084035032030030597585591591012353603754355855555505251045860840795
Percentage of PlannedCapitalExpendituresThirdYear4.74.69.67.29.04.348.721.57.38.736.541.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:BatteryStorageExpenditures, nee:NexteraEnergyResources



Period End2020-03-31
Value0
Percentage of PlannedCapitalExpendituresThirdYear0.0

nee:ExistingGenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value107593010501050
Percentage of PlannedCapitalExpendituresThirdYear17.015.217.217.7

nee:GeneralAndOtherExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value440440470475
Percentage of PlannedCapitalExpendituresThirdYear6.97.27.78.0

nee:NewGenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value550555695525
Percentage of PlannedCapitalExpendituresThirdYear8.79.111.48.8

nee:NuclearExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value165170180170
Percentage of PlannedCapitalExpendituresThirdYear2.62.82.92.9

nee:NuclearFuelExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value165165220220
Percentage of PlannedCapitalExpendituresThirdYear2.62.73.63.7

nee:OtherExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value65705545
Percentage of PlannedCapitalExpendituresThirdYear1.01.10.90.8

nee:RateRegulatedTransmission, nee:NexteraEnergyResources



Period End2020-03-312019-12-31
Value305
Percentage of PlannedCapitalExpendituresThirdYear0.50.1

nee:SolarExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value05190175
Percentage of PlannedCapitalExpendituresThirdYear0.00.13.12.9

nee:TransmissionAndDistributionExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value4110403036853675
Percentage of PlannedCapitalExpendituresThirdYear64.865.860.261.8

nee:WindExpenditures, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value10102525
Percentage of PlannedCapitalExpendituresThirdYear0.20.20.40.4

us-gaap:Pipelines, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value252014015
Percentage of PlannedCapitalExpendituresThirdYear0.40.32.30.3

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:PlannedGenerationCapitalExpendituresAFUDCRemainderCurrentYear

nee:GenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-31
Value25
Percentage of PlannedGenerationCapitalExpendituresAFUDCRemainderCurrentYear100.0

nee:TransmissionAndDistributionExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-31
Value30
Percentage of PlannedGenerationCapitalExpendituresAFUDCRemainderCurrentYear120.0

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:PlannedGenerationCapitalExpendituresAFUDCSecondYear

nee:GenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-31
Value70
Percentage of PlannedGenerationCapitalExpendituresAFUDCSecondYear100.0

nee:TransmissionAndDistributionExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-31
Value55
Percentage of PlannedGenerationCapitalExpendituresAFUDCSecondYear78.6

nee:PlannedCapitalExpendituresByCommitment, dei:LegalEntity

nee:PlannedGenerationCapitalExpendituresAFUDCThirdYear

nee:GenerationExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-31
Value40
Percentage of PlannedGenerationCapitalExpendituresAFUDCThirdYear100.0

nee:TransmissionAndDistributionExpenditures, nee:FloridaPowerLightCompany



Period End2020-03-31
Value55
Percentage of PlannedGenerationCapitalExpendituresAFUDCThirdYear137.5

nee:PotentialRetrospectiveAssessmentLimitedInsuranceCoveragePerOccurrencePerSiteNuclearInsuranceMutualCompaniesPropertyDamageDecontaminationAndPrematureDecommissioningRisks



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value173174174174174177177177177178178178179186187187187187187187187175176175175198198
Percentage of PotentialRetrospectiveAssessmentLimitedInsuranceCoveragePerOccurrencePerSiteNuclearInsuranceMutualCompaniesPropertyDamageDecontaminationAndPrematureDecommissioningRisks100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period 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
Value106106106106106108108108108108108108
Percentage of PotentialRetrospectiveAssessmentLimitedInsuranceCoveragePerOccurrencePerSiteNuclearInsuranceMutualCompaniesPropertyDamageDecontaminationAndPrematureDecommissioningRisks61.360.960.960.960.961.061.061.061.060.760.760.7

nee:InsuranceByNuclearPowerPlant

nee:PotentialRetrospectiveAssessmentsApproximateRecoveryOfProportionateShareFromMinorityInterestsUnderNuclearInsuranceMutualCompanies

nee:DuaneArnoldEnergyCenterInsurance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-302011-03-31
Value44444555555555555555555444404
Percentage of PotentialRetrospectiveAssessmentsApproximateRecoveryOfProportionateShareFromMinorityInterestsUnderNuclearInsuranceMutualCompanies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

nee:SeabrookStationInsurance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-302011-03-31
Value23333222233333322223333222202
Percentage of PotentialRetrospectiveAssessmentsApproximateRecoveryOfProportionateShareFromMinorityInterestsUnderNuclearInsuranceMutualCompanies50.075.075.075.075.040.040.040.040.060.060.060.060.060.060.040.040.040.040.060.060.060.060.050.050.050.050.00.050.0

nee:StLucieUnitNo2Insurance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-302011-03-31
Value44444444444444444444444444303
Percentage of PotentialRetrospectiveAssessmentsApproximateRecoveryOfProportionateShareFromMinorityInterestsUnderNuclearInsuranceMutualCompanies100.0100.0100.0100.0100.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.0100.0100.0100.075.00.075.0

nee:InsuranceByNuclearPowerPlant

nee:PotentialRetrospectiveAssessmentsApproximateRecoveryOfProportionateShareFromMinorityInterestsUnderSecondaryFinancialProtectionSystem

nee:DuaneArnoldEnergyCenterInsurance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-302011-03-31
Value414141414141383838383838383838383838383838353535353535035
Percentage of PotentialRetrospectiveAssessmentsApproximateRecoveryOfProportionateShareFromMinorityInterestsUnderSecondaryFinancialProtectionSystem100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

nee:SeabrookStationInsurance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-302011-03-31
Value161616161616151515151515151515151515151515141414141414014
Percentage of PotentialRetrospectiveAssessmentsApproximateRecoveryOfProportionateShareFromMinorityInterestsUnderSecondaryFinancialProtectionSystem39.039.039.039.039.039.039.539.539.539.539.539.539.539.539.539.539.539.539.539.539.540.040.040.040.040.040.00.040.0

nee:StLucieUnitNo2Insurance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-06-302011-03-31
Value202020202020191919191919191919191919191919181818181818018
Percentage of PotentialRetrospectiveAssessmentsApproximateRecoveryOfProportionateShareFromMinorityInterestsUnderSecondaryFinancialProtectionSystem48.848.848.848.848.848.850.050.050.050.050.050.050.050.050.050.050.050.050.050.050.051.451.451.451.451.451.40.051.4

nee:PotentialRetrospectiveAssessmentsUnderSecondaryFinancialProtectionSystem



Period 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
Value110011001100110011001100100010001000100010001000100010001000100010001000100010001000100010001000100010001000940940940940940
Percentage of PotentialRetrospectiveAssessmentsUnderSecondaryFinancialProtectionSystem100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period 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
Value550550550550550550509509509509509509
Percentage of PotentialRetrospectiveAssessmentsUnderSecondaryFinancialProtectionSystem50.050.050.050.050.050.050.950.950.950.950.950.9

nee:PotentialRetrospectiveAssessmentsUnderSecondaryFinancialProtectionSystemPayablePerIncidentPerYear



Period 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
Value164164164164164164152152152152152152152152152152152152152152152152152152152152152140140140140140
Percentage of PotentialRetrospectiveAssessmentsUnderSecondaryFinancialProtectionSystemPayablePerIncidentPerYear100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

nee:FloridaPowerLightCompany



Period 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
Value828282828282767676767676
Percentage of PotentialRetrospectiveAssessmentsUnderSecondaryFinancialProtectionSystemPayablePerIncidentPerYear50.050.050.050.050.050.050.050.050.050.050.050.0

us-gaap:Range, nee:EquityUnits

nee:PricePerShareofStockPurchaseContract

srt:Maximum, nee:NEEEquityUnits2020



Period End2020-03-31
Value352.55
Percentage of PricePerShareofStockPurchaseContract100.0

srt:Minimum, nee:NEEEquityUnits2020



Period End2020-03-31
Value282.04
Percentage of PricePerShareofStockPurchaseContract80.0

dei:LegalEntity

nee:PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value55481545235342552914515364964049479486294828447167463944617844966
Percentage of PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity, us-gaap:StatementScenario

nee:RenewableEnergyAssetsPowerGenerationCapacity

nee:FloridaPowerLightCompany, us-gaap:ScenarioForecast



Period End2020-12-312019-12-312019-06-302019-03-312018-03-31
Value300.0300.01750.0300.0300.0
Percentage of RenewableEnergyAssetsPowerGenerationCapacity100.0100.0100.0100.0100.0

us-gaap:Subsidiaries, us-gaap:ScenarioForecast



Period End2020-12-312019-06-30
Value300.01750.0
Percentage of RenewableEnergyAssetsPowerGenerationCapacity100.0100.0

dei:LegalEntity

nee:RequiredCapacityAndOrMinimumPaymentsAfterFifthYear

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value113501162511525115051150011495
Percentage of RequiredCapacityAndOrMinimumPaymentsAfterFifthYear100.0100.0100.0100.0100.0100.0

nee:NexteraEnergyResources



Period 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
Value139514151480150513801365147013351330290390315295285370350320535620395395390480475475490590585580580600605595590825840830830
Percentage of RequiredCapacityAndOrMinimumPaymentsAfterFifthYear12.312.212.813.112.011.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CounterpartyName, dei:LegalEntity

nee:MountainValleyPipeline, nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-30
Value1110111011801180
Percentage of RequiredCapacityAndOrMinimumPaymentsAfterFifthYear9.89.510.210.3

us-gaap:CounterpartyName, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased, dei:LegalEntity

nee:SabalTrailandFloridaSoutheastConnection, nee:NaturalGasIncludingTransportationAndStorageContractMinimumPayments, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value6765676571757175
Percentage of RequiredCapacityAndOrMinimumPaymentsAfterFifthYear59.658.262.362.4

dei:LegalEntity

nee:RequiredCapacityAndOrMinimumPaymentsFifthYear

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value970970975975970960
Percentage of RequiredCapacityAndOrMinimumPaymentsFifthYear100.0100.0100.0100.0100.0100.0

nee:NexteraEnergyResources



Period 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
Value18514012012511010518017517010080757575958575859080808513012010510585706565105105105100190165165165
Percentage of RequiredCapacityAndOrMinimumPaymentsFifthYear19.114.412.312.811.310.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

dei:LegalEntity

nee:RequiredCapacityAndOrMinimumPaymentsFourthYear

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value975975980975975970
Percentage of RequiredCapacityAndOrMinimumPaymentsFourthYear100.0100.0100.0100.0100.0100.0

nee:NexteraEnergyResources



Period 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
Value180130195195185185160160145801051051059012518013013516013513513513511510510016014511511085110110110230185185165
Percentage of RequiredCapacityAndOrMinimumPaymentsFourthYear18.513.319.920.019.019.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CounterpartyName, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased, dei:LegalEntity

nee:SabalTrailandFloridaSoutheastConnection, nee:NaturalGasIncludingTransportationAndStorageContractMinimumPayments, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value410410415415
Percentage of RequiredCapacityAndOrMinimumPaymentsFourthYear42.142.142.342.6

dei:LegalEntity

nee:RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear

nee:FloridaPowerLightCompany



Period End2020-03-312019-09-302019-06-302019-03-31
Value800250500750
Percentage of RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear100.0100.0100.0100.0

nee:NexteraEnergyResources



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value31701590218523151110217521455701020144012352040351593017302225485143015908407456406101680204583516301460
Percentage of RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear396.2636.0437.0308.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CounterpartyName, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased, dei:LegalEntity

nee:SabalTrailandFloridaSoutheastConnection, nee:NaturalGasIncludingTransportationAndStorageContractMinimumPayments, nee:FloridaPowerLightCompany



Period End2020-03-312019-09-302019-06-30
Value30580160
Percentage of RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear38.132.032.0

dei:LegalEntity

nee:RequiredCapacityAndOrMinimumPaymentsSecondYear

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1010100510051000995990
Percentage of RequiredCapacityAndOrMinimumPaymentsSecondYear100.0100.0100.0100.0100.0100.0

nee:NexteraEnergyResources



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value58539525051545107539017608302051380735860145325475225
Percentage of RequiredCapacityAndOrMinimumPaymentsSecondYear57.939.3249.3154.5108.039.40.00.00.00.00.00.00.00.00.00.0

us-gaap:CounterpartyName, us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased, dei:LegalEntity

nee:SabalTrailandFloridaSoutheastConnection, nee:NaturalGasIncludingTransportationAndStorageContractMinimumPayments, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-30
Value415415385385
Percentage of RequiredCapacityAndOrMinimumPaymentsSecondYear41.141.338.338.5

dei:LegalEntity

nee:RequiredCapacityAndOrMinimumPaymentsThirdYear

nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value9909851000995985985
Percentage of RequiredCapacityAndOrMinimumPaymentsThirdYear100.0100.0100.0100.0100.0100.0

nee:NexteraEnergyResources



Period 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
Value26025522021017517019518517512013515014014098577561062515514014014065548017517013014012595235120120140545230215180
Percentage of RequiredCapacityAndOrMinimumPaymentsThirdYear26.325.922.021.117.817.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

nee:Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeassets



Period End2020-03-312019-12-312018-12-31
Value160139184
Percentage of Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeassets100.0100.0100.0

nee:Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeliabilities



Period End2020-03-312019-12-31
Value11366
Percentage of Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeliabilities100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

nee:SpecialUseFundsCorporateDebtSecuritiesFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value100000111111110000000000000000000000
Percentage of SpecialUseFundsCorporateDebtSecuritiesFairValueDisclosure100.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value732748777747775728725734716764772803796763849861793713775769748704677662612597560559576572549503462516488486
Percentage of SpecialUseFundsCorporateDebtSecuritiesFairValueDisclosure73200.00.00.00.00.00.072500.073400.071600.076400.077200.080300.079600.076300.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, dei:LegalEntity

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, nee:FloridaPowerLightCompany



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value529533542534544
Percentage of SpecialUseFundsCorporateDebtSecuritiesFairValueDisclosure52900.00.00.00.00.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period 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
Value733748777747775728726735717765773804797764849861793713775769748704677662612597560559576572549503462516488463486
Percentage of SpecialUseFundsCorporateDebtSecuritiesFairValueDisclosure73300.00.00.00.00.00.072600.073500.071700.076500.077300.080400.079700.076400.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueByMeasuremen