PNM


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

Table of contents



us-gaap:CommonStockValue
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:ComprehensiveIncomeNetOfTax
dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity
dei:LegalEntity, us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServicesSold
dei:LegalEntity, us-gaap:ProductOrService, us-gaap:UnusualOrInfrequentItem
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:CostOfGoodsAndServicesSoldDepreciationAndAmortization
dei:LegalEntity
us-gaap:StatementBusinessSegments

us-gaap:GainLossOnInvestments
dei:LegalEntity

us-gaap:GeneralAndAdministrativeExpense
dei:LegalEntity
us-gaap:ProductOrService
us-gaap:GrossProfit
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
dei:LegalEntity
us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxExpenseBenefit
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:PublicUtility
us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxesPaidNet
dei:LegalEntity

us-gaap:InterestExpense
dei:LegalEntity
us-gaap:StatementBusinessSegments

us-gaap:InterestPaidNet
dei:LegalEntity

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

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:StatementBusinessSegments

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
dei:LegalEntity
us-gaap:StatementBusinessSegments
dei:LegalEntity
us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss
dei:LegalEntity
us-gaap:StatementBusinessSegments

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

us-gaap:OtherIncome
dei:LegalEntity

us-gaap:OtherNonoperatingIncomeExpense
dei:LegalEntity

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

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
dei:LegalEntity
dei:LegalEntity, us-gaap:MajorCustomers, us-gaap:ProductOrService
dei:LegalEntity, us-gaap:ProductOrService
us-gaap:MajorCustomers, us-gaap:ProductOrService
us-gaap:ProductOrService

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

us-gaap:Assets
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:StatementBusinessSegments

us-gaap:Liabilities
dei:LegalEntity
us-gaap:ConsolidatedEntities

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

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

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

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

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

us-gaap:AccountsReceivableNetCurrent
dei:LegalEntity

us-gaap:InventoryNet
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtilitiesInventory
us-gaap:PublicUtilitiesInventory

us-gaap:OtherAssetsCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant, us-gaap:PurchaseCommitmentExcludingLongtermCommitment
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:AssetsNoncurrent
us-gaap:ConsolidatedEntities

us-gaap:ConstructionInProgressGross
dei:LegalEntity
us-gaap:ConsolidatedEntities
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:PropertyPlantAndEquipmentNet
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:Goodwill
dei:LegalEntity

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:EquitySecuritiesFvNi
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:AccountsPayableCurrent
dei:LegalEntity

us-gaap:ContractWithCustomerLiabilityCurrent
dei:LegalEntity

us-gaap:DividendsPayableCurrent
dei:LegalEntity

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

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

us-gaap:OperatingLeaseLiabilityCurrent
dei:LegalEntity

us-gaap:OtherLiabilitiesCurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:LiabilitiesNoncurrent
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:LongTermDebt
us-gaap:DebtInstrument

us-gaap:LongTermDebtNoncurrent
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:UnsecuredLongTermDebt

us-gaap:DeferredIncomeTaxLiabilitiesNet
dei:LegalEntity

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanType

us-gaap:MinorityInterest
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
dei:LegalEntity

us-gaap:OperatingLeaseLiability
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
dei:LegalEntity

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

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

us-gaap:CommonStockValue
dei:LegalEntity
us-gaap:ConsolidatedEntities
dei:LegalEntity
us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
dei:LegalEntity
us-gaap:ConsolidatedEntities

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

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

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
dei:LegalEntity

us-gaap:DeferredIncomeTaxExpenseBenefit
dei:LegalEntity

us-gaap:DepreciationDepletionAndAmortization
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsPayable
dei:LegalEntity

us-gaap:IncreaseDecreaseInInventories
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

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

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

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:PaymentsToAcquireProductiveAssets
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfLongTermDebt
dei:LegalEntity

us-gaap:RepaymentsOfLongTermDebt
dei:LegalEntity

us-gaap:PaymentsOfDividendsCommonStock
dei:LegalEntity

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations
dei:LegalEntity

us-gaap:DeferredTaxLiabilities
dei:LegalEntity
dei:LegalEntity
us-gaap:UnrecognizedTaxBenefits
dei:LegalEntity
pnm:AdjustmentsToAdditionalPaidInCapitalParentContributions
dei:LegalEntity, us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:PublicUtility
pnm:AnnualLeasePaymentsDuringRenewalPeriod
dei:LegalEntity, us-gaap:RetirementPlanType
pnm:DefinedBenefitPlanPlanAssetsDisbursementsByEmployer

pnm:EffectiveIncomeTaxRateReconciliationTaxExpenseBenefitMergerRelatedCostsAmount
dei:LegalEntity
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
pnm:FinalPaymentForReliefFromObligations

pnm:FinanceLeaseCapitalizedCosts
dei:LegalEntity

pnm:FinanceLeaseCost
dei:LegalEntity

pnm:FinanceLeasesCapitalizedFinancingCostsInvestingActivities
dei:LegalEntity

pnm:IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues
dei:LegalEntity

pnm:IncreaseDecreaseInAccruedInterestAndTaxes
dei:LegalEntity
dei:LegalEntity
pnm:IncreaseDecreaseInOtherThanTemporaryLossesInvestmentsPortionRecognizedinEarningsNetAvailableforsaleSecurities

pnm:IncreaseDecreaseincapitalexpendituresincurredbutnotyetpaid
dei:LegalEntity
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
pnm:InitialPaymentForReliefFromObligations
dei:LegalEntity, us-gaap:PublicUtility
pnm:LesseeRightOfWayLeaseAnnualPayments
dei:LegalEntity, us-gaap:PublicUtility
pnm:LesseeRightOfWayLeasePayments
dei:LegalEntity, us-gaap:PublicUtility, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:ConsolidatedEntities
pnm:LongTermContractForPurchaseOfElectricPowerFixedCosts
dei:LegalEntity, us-gaap:ConsolidatedEntities
pnm:LongTermContractForPurchaseOfElectricPowerVariableCharges

pnm:OperatingLeaseCapitalizedCosts
dei:LegalEntity

pnm:OperatingLeaseRightOfUseAssetsAmortizationExpense

pnm:OperatingLeasesCapitalizedFinancingCostsInvestingActivities
dei:LegalEntity

pnm:OtherIncomeDeductionsExcludingInterest
us-gaap:StatementBusinessSegments

pnm:OtherOperatingExpenses
us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
pnm:PaymentsForReliefFromObligations
us-gaap:JointlyOwnedUtilityPlant, us-gaap:PurchaseCommitmentExcludingLongtermCommitment

pnm:PreferredStockDividendRequirementsOfSubsidiary
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
pnm:ProceedsFromSecuritizationBonds
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType

pnm:ProceedsFromTaxRefundsAMTCreditCARESAct

pnm:ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements
dei:LegalEntity
dei:LegalEntity, us-gaap:SubsequentEventType
pnm:PublicUtilitiesCollectionOfIncreaseInAnnualDistributionRevenues
dei:LegalEntity, us-gaap:BusinessAcquisition
pnm:PublicUtilitiesContributiontoConstructionActivities
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, pnm:TypeOfRegulatoryCost
pnm:PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsProfitIncentive
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, pnm:TypeOfRegulatoryCost, us-gaap:SubsequentEventType
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters
pnm:PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue
dei:LegalEntity, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:RegulatoryAgency
pnm:ScheduleOfRegulatoryRateMatters
pnm:PublicUtilitiesIncreaseDecreaseInEstimatedCostOfProject
pnm:ScheduleOfRegulatoryRateMatters, us-gaap:SubsequentEventType
dei:LegalEntity
pnm:PublicUtilitiesIncreaseInRateBase
dei:LegalEntity, us-gaap:SubsequentEventType
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:PublicUtility
pnm:PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:RegulatoryAgency
pnm:PublicUtilitiesRenewableEnergyProcurementPlanApprovedRecoveryAmount
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
pnm:PublicUtilitiesRenewableEnergyProcurementPlanProposedRecoveryAmount
dei:LegalEntity, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
pnm:PublicUtilitiesRequestIssuanceOfEnergyTransitionBonds
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType
dei:LegalEntity
pnm:PublicUtilitiesRequestedIncreaseAnnualDistributionRevenueRequirement
dei:LegalEntity, us-gaap:SubsequentEventType
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:SubsequentEventType
pnm:PublicUtilitiesRequestedIncreaseAnnualTransmissionServiceRevenue
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:RegulatoryAgency
pnm:PublicUtilitiesRevenueFromRenewableEnergyRider
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:RegulatoryAgency
pnm:PublicUtilitiesRevenuefromRenewableenergyrider
dei:LegalEntity, pnm:ClassificationOfMine, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
pnm:RegulatoryDisallowanceAdditionalAmountRecorded

pnm:RepaymentsFromTransmissionInterconnectionArrangement
dei:LegalEntity
us-gaap:AwardType
pnm:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedQuarterlyDividendRate
us-gaap:StatementScenario, us-gaap:BusinessAcquisition
pnm:TerminationFees

pnm:TransmissionAndDistributionCosts
dei:LegalEntity

us-gaap:AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant, us-gaap:PublicUtility
us-gaap:AssetRetirementObligationRevisionOfEstimate
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency
us-gaap:AvailableForSaleDebtSecuritiesGrossUnrealizedGain
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:SubsequentEventType
us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:DebtAndEquitySecuritiesGainLoss
dei:LegalEntity
us-gaap:DebtSecuritiesAvailableForSaleRealizedGain
dei:LegalEntity
us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

us-gaap:DebtSecuritiesRealizedGainLoss

us-gaap:DeferredFederalStateAndLocalTaxExpenseBenefit
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
dei:LegalEntity, us-gaap:Range, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:DividendsCommonStockCash
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:DividendsPreferredStockCash
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount
dei:LegalEntity

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

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiRealizedGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:FinanceLeaseInterestExpense
dei:LegalEntity

us-gaap:FinanceLeaseInterestPaymentOnLiability
dei:LegalEntity

us-gaap:FinanceLeasePrincipalPayments
dei:LegalEntity

us-gaap:FinanceLeaseRightOfUseAssetAmortization
dei:LegalEntity

us-gaap:GainLossOnSaleOfInvestments
dei:LegalEntity
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions

us-gaap:IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction
dei:LegalEntity
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding

us-gaap:IncreaseDecreaseInOtherCurrentAssets
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets
dei:LegalEntity

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities
dei:LegalEntity

us-gaap:IncrementalCommonSharesAttributableToEquityForwardAgreements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InvestmentIncomeInterest
dei:LegalEntity
us-gaap:StatementBusinessSegments

us-gaap:LeaseCost
dei:LegalEntity

us-gaap:OperatingLeaseCost
dei:LegalEntity

us-gaap:OperatingLeaseExpense
dei:LegalEntity

us-gaap:OperatingLeasePayments
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
dei:LegalEntity

us-gaap:OtherExpenses
dei:LegalEntity

us-gaap:OtherNoncashIncomeExpense
dei:LegalEntity

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
dei:LegalEntity

us-gaap:PaymentsOfDividendsMinorityInterest
dei:LegalEntity
us-gaap:SubsidiarySaleOfStock
us-gaap:PaymentsOfStockIssuanceCosts

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:PaymentsToAcquireMarketableSecurities
dei:LegalEntity
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
us-gaap:DebtInstrument
us-gaap:ProceedsFromIssuanceOfDebt
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:ProceedsFromLongTermLinesOfCredit

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromRepaymentsOfLinesOfCredit
dei:LegalEntity

us-gaap:ProceedsFromRepaymentsOfOtherDebt
dei:LegalEntity

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities
dei:LegalEntity
dei:LegalEntity
us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
us-gaap:CreditFacility
us-gaap:ProceedsFromShortTermDebt

us-gaap:ProceedsFromStockOptionsExercised
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters
us-gaap:PublicUtilitiesApprovedRateIncreaseDecreaseAmount
dei:LegalEntity, us-gaap:RegulatoryAgency
dei:LegalEntity, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:StatementScenario, us-gaap:RegulatoryAgency
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:SubsequentEventType
us-gaap:PublicUtilitiesRequestedRateIncreaseDecreaseAmount
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodTax
us-gaap:StatementEquityComponents
pnm:RelatedPartyTransactionByTransactionType, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RelatedPartyTransactionAmountsOfTransaction
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:RepaymentsOfDebt
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:RevenueNotFromContractWithCustomer
dei:LegalEntity

us-gaap:RevenueNotFromContractWithCustomerOther
dei:LegalEntity

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
dei:LegalEntity

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
dei:LegalEntity
us-gaap:SubsidiarySaleOfStock
us-gaap:SaleOfStockConsiderationReceivedOnTransaction
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShortTermLeaseCost
dei:LegalEntity

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodValue
us-gaap:StatementEquityComponents

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

us-gaap:UtilitiesOperatingExpenseTaxes
dei:LegalEntity

us-gaap:VariableLeaseCost
dei:LegalEntity

us-gaap:WeightedAverageNumberOfSharesIssuedBasic

us-gaap:WeightedAverageNumberOfSharesRestrictedStock

dei:EntityCommonStockSharesOutstanding
dei:LegalEntity

pnm:AccruedInterestAndTaxesPayable
dei:LegalEntity
us-gaap:ConsolidatedEntities

pnm:AccumulatedAmortizationNuclearFuel
dei:LegalEntity

pnm:AssetRetirementObligationLiabilitiesRelatedtoNuclearDecommissioning
dei:LegalEntity
pnm:AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue
dei:LegalEntity
pnm:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsThroughFifteenYearsFairValue
dei:LegalEntity
pnm:AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsFairValue

pnm:BudgetedFutureConstructionExpendituresYearFive
dei:LegalEntity

pnm:BudgetedFutureConstructionExpendituresYearFour
dei:LegalEntity

pnm:BudgetedFutureConstructionExpendituresYearOne
dei:LegalEntity

pnm:BudgetedFutureConstructionExpendituresYearThree
dei:LegalEntity

pnm:BudgetedFutureConstructionExpendituresYearTwo
dei:LegalEntity
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant, us-gaap:PurchaseCommitmentExcludingLongtermCommitment
pnm:CoalMineReclamationBondstobepostedwithNMMMD
us-gaap:UnusualRiskOrUncertaintyByNature
pnm:DeferredIncrementalCosts

pnm:DeferredTaxAssetsRegulatoryDisallowance
dei:LegalEntity

pnm:DeferredTaxAssetsTaxDeferredExpensePayrollTaxesCARESAct
dei:LegalEntity
pnm:DeferredTaxLiabilitiesAdvancedMeteringSystem

pnm:DeferredTaxLiabilitiesCompensationandBenefitsPensions
dei:LegalEntity

pnm:DeferredTaxLiabilitiesInvestmentTaxCredit
dei:LegalEntity
dei:LegalEntity
pnm:DeferredTaxLiabilityLossonreacquireddebt
dei:LegalEntity, us-gaap:RetirementPlanType
pnm:DefinedBenefitPlanEstimatedFutureEmployerContributionsInYearFive
dei:LegalEntity, us-gaap:RetirementPlanType
pnm:DefinedBenefitPlanEstimatedFutureEmployerContributionsInYearFour
dei:LegalEntity, us-gaap:RetirementPlanType
pnm:DefinedBenefitPlanEstimatedFutureEmployerContributionsInYearThree
dei:LegalEntity, us-gaap:RetirementPlanType
pnm:DefinedBenefitPlanPlanAssetsDisbursementsByEmployerInYearTwoThroughYearFive
dei:LegalEntity, us-gaap:RetirementPlanType
pnm:DefinedBenefitPlanPlanAssetsDisbursementsByEmployerinYearTwoThroughYearFive
dei:LegalEntity, us-gaap:RetirementPlanType
pnm:DefinedBenefitPlanTotalExpectedEmployerDisbursementsforNextFiscalYear
dei:LegalEntity
pnm:EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount
dei:LegalEntity
pnm:EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus
dei:LegalEntity, us-gaap:StatementScenario
dei:LegalEntity, us-gaap:SubsequentEventType
us-gaap:IncomeTaxAuthority
pnm:FederalTaxCreditCarryforwardsThatExpireBeginningIn2023

pnm:FinanceLeaseLiabilityCurrentOther
dei:LegalEntity

pnm:FinanceLeaseLiabilityDeferredCreditsOther
dei:LegalEntity

pnm:FinanceLeaseLiabilityToBePaidAfterYearFour
dei:LegalEntity

pnm:FinanceLeaseRightOfUseAssetAccumulatedDepreciation
dei:LegalEntity

pnm:FinanceLeaseRightOfUseAssetGross
dei:LegalEntity
pnm:OtherEntities, pnm:Unit, us-gaap:JointlyOwnedUtilityPlant
pnm:JointlyOwnedUtilityPlantProportionateOwnershipShareOtherEntities

pnm:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour
dei:LegalEntity

pnm:LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents

pnm:LesseeOperatingLeaseUnguaranteedResidualValue
dei:LegalEntity

pnm:LongtermdebtCurrentmaturitiesGross
dei:LegalEntity

pnm:LongtermdebtExcludingcurrentmaturitiesGross
dei:LegalEntity
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:LongTermContractForPurchaseOfElectricPower
pnm:NumberOfMegaWattsPurchased
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
pnm:OtherCommitmentDueinFirstYear
dei:LegalEntity, us-gaap:UnusualOrInfrequentItem
pnm:OtherDeferredCostsGrossCARESAct

pnm:OtherDeferredCostsNetIncludingDeferredFinanceCosts
dei:LegalEntity
dei:LegalEntity
pnm:PublicUtilitiesEstimateOfPossibleUpgrades
dei:LegalEntity, us-gaap:SubsequentEventType
pnm:ScheduleOfRegulatoryRateMatters
pnm:PublicUtilitiesEstimatedCostOfProject
pnm:ScheduleOfRegulatoryRateMatters, us-gaap:SubsequentEventType
us-gaap:JointlyOwnedUtilityPlant
pnm:PublicUtilitiesEstimatedCostsOfReplacementResources
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters
pnm:PublicUtilitiesExpectedBudgetedExpenditures
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
pnm:PublicUtilitiesForecastedUndepreciatedInvestment
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant, us-gaap:PublicUtility
pnm:PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters
pnm:PublicUtilitiesNumberOfMegaWattsOfSolarPhotovoltaicCapacity
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:SubsequentEventType
pnm:PublicUtilitiesNumberOfMegawattsAvailableInBatteryStorageFacilities
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:SubsequentEventType
pnm:PublicUtilitiesNumberOfMegawattsAvailableInSolarFacilities
dei:LegalEntity
pnm:PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:SubsequentEventType
pnm:ScheduleOfRegulatoryRateMatters, us-gaap:SubsequentEventType
pnm:PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilitiesApproved
pnm:ScheduleOfRegulatoryRateMatters, us-gaap:SubsequentEventType
pnm:PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilitiesDisapproved
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters
pnm:PublicUtilitiesNumberofMegaWattsofSolarPhotovoltaicCapacityCurrentOutput
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters
pnm:PublicUtilitiesNumberofadvancedmetersinstalled
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
pnm:PublicUtilitiesPlantDecommissioningAndCoalMineReclamationCosts
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType

pnm:PublicUtilitiesPropertyPlantAndEquipmentInServiceNet
dei:LegalEntity

pnm:PublicUtilitiesPropertyPlantAndEquipmentNetInService
dei:LegalEntity
pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature, pnm:DateOfRegulatoryAction, pnm:ScheduleOfRegulatoryRateMatters
pnm:PublicUtilitiesRenewableEnergyPercentage
dei:LegalEntity, us-gaap:RegulatoryAgency
pnm:PublicUtilitiesSolarGenerationCapacityAmountRequestedForApprovalToAbandonInMegawatts
dei:LegalEntity, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
pnm:ScheduleOfRegulatoryRateMatters
pnm:PublicUtilitiesSolarGenerationCapacityExpectedToBeOperationalInMegawatts
dei:LegalEntity
pnm:PublicUtilitiesSolarGenerationCapacityInMegawatts
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:RegulatoryAgency
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:RegulatoryAgency, us-gaap:SubsequentEventType
dei:LegalEntity, pnm:ScheduleOfRegulatoryRateMatters, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType
pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
pnm:ScheduleOfRegulatoryRateMatters
dei:LegalEntity
pnm:PublicUtilitiesSolarGenerationCapacityRelatedToUnexecutedTransmissionServiceAgreementInMegawatts
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
pnm:PublicUtilitiesUpfrontFinancingCosts
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
pnm:ReclamationTrustFundingCurrentFiscalYear
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
pnm:ReclamationTrustFundingCurrentfiscalyear
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature, pnm:JointlyOwnedGeneratingFacilities
pnm:ReclamationTrustFundingNextFiscalYear
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature, pnm:JointlyOwnedGeneratingFacilities
pnm:ReclamationTrustFundingNextFiscalYearThroughYearFive
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
pnm:ReclamationTrustFundingYear2
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature, pnm:JointlyOwnedGeneratingFacilities
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
pnm:ReclamationTrustFundingYear3
pnm:AchievedSpecifiedPerformanceTargetTimeFrame, us-gaap:TitleOfIndividual, us-gaap:AwardType
pnm:SharebasedCompensationweightedpercentageassignedtoachievingmarkettargets
pnm:AchievedSpecifiedPerformanceTargetTimeFrame, us-gaap:TitleOfIndividual, us-gaap:AwardType
pnm:SharebasedCompensationweightedpercentageassignedtoachievingperformancetargets

pnm:TotalBudgetedConstructionExpenditures
dei:LegalEntity

pnm:TotalDeferredChargesAndOtherAssets
dei:LegalEntity

pnm:TotalOtherPropertyAndInvestments
dei:LegalEntity

pnm:UnamortizedCostOfPrepaidRightOfWayAgreements

pnm:UnamortizedLoanCommitmentandOriginationFeesandUnamortizedDiscountsorPremiumsCurrentPortion
dei:LegalEntity

pnm:UnamortizedLoanCommitmentandOriginationFeesandUnamortizedDiscountsorPremiumsExcludingCurrentPortion
dei:LegalEntity
dei:LegalEntity
us-gaap:AccountsPayableCurrentAndNoncurrent
dei:LegalEntity
us-gaap:AccountsPayableRelatedPartiesCurrent
dei:LegalEntity
us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:PublicUtility
us-gaap:AmountOfImpairmentToCarryingAmountOfRegulatoryAssets
dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding

us-gaap:AssetRetirementObligation
dei:LegalEntity

us-gaap:AssetRetirementObligationsNoncurrent
dei:LegalEntity
dei:LegalEntity
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
dei:LegalEntity
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
dei:LegalEntity
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
dei:LegalEntity
us-gaap:AvailableForSaleSecuritiesDebtSecurities
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:CashAndCashEquivalentsFairValueDisclosure
dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
dei:LegalEntity
us-gaap:ContractWithCustomerAssetNet

us-gaap:DebtInstrumentCarryingAmount
dei:LegalEntity
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateEffectivePercentage
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
us-gaap:DecommissioningTrustAssetsAmount

us-gaap:DeferredCreditsAndOtherLiabilitiesNoncurrent
dei:LegalEntity

us-gaap:DeferredIncomeTaxLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsGross
dei:LegalEntity

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOther
dei:LegalEntity

us-gaap:DeferredTaxAssetsRegulatoryAssetsAndLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesOther
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesRegulatoryAssets
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanType
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeAssets
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeAssetsCurrent
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeAssetsNoncurrent

us-gaap:DerivativeCollateralObligationToReturnCash
dei:LegalEntity
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeLiabilities
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeLiabilitiesCurrent
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:FairValueByFairValueHierarchyLevel
dei:LegalEntity, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeLiabilitiesNoncurrent
dei:LegalEntity
us-gaap:DueFromRelatedPartiesCurrent
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:DueToRelatedPartiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EquityMethodInvestmentOwnershipPercentage
dei:LegalEntity

us-gaap:EquityMethodInvestments

us-gaap:FinanceLeaseLiability
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDue
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear
dei:LegalEntity

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount
dei:LegalEntity

us-gaap:FinanceLeaseRightOfUseAsset
dei:LegalEntity

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent
dei:LegalEntity

us-gaap:IncomeTaxesReceivable
dei:LegalEntity
dei:LegalEntity, pnm:Unit, us-gaap:JointlyOwnedUtilityPlant
us-gaap:JointlyOwnedUtilityPlantProportionateOwnershipShare
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
pnm:OtherEntities, us-gaap:JointlyOwnedUtilityPlant

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
dei:LegalEntity

us-gaap:LettersOfCreditOutstandingAmount
dei:LegalEntity

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd
us-gaap:ConsolidatedEntities, us-gaap:CreditFacility
us-gaap:CreditFacility
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:StatementScenario
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility, us-gaap:StatementScenario
dei:LegalEntity, us-gaap:CreditFacility, us-gaap:SubsequentEventType
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:SubsequentEventType
us-gaap:ConsolidatedEntities, us-gaap:SubsequentEventType
us-gaap:CreditFacility, us-gaap:SubsequentEventType
us-gaap:DebtInstrument
us-gaap:SubsequentEventType

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

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
dei:LegalEntity

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
dei:LegalEntity
dei:LegalEntity, pnm:ClassificationOfMine, us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyAccrualAtCarryingValue
dei:LegalEntity, pnm:FinancialStatementLocation, us-gaap:JointlyOwnedUtilityPlant, us-gaap:LossContingenciesByNatureOfContingency
dei:LegalEntity, pnm:ClassificationOfMine, us-gaap:JointlyOwnedUtilityPlant, us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyEstimateOfPossibleLoss
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant, us-gaap:LossContingenciesByNatureOfContingency
dei:LegalEntity, us-gaap:PublicUtility
us-gaap:LossContingencyRangeOfPossibleLossPortionNotAccrued
dei:LegalEntity
us-gaap:MarginDepositAssets
dei:LegalEntity
us-gaap:NotesPayableRelatedPartiesClassifiedCurrent
dei:LegalEntity, us-gaap:SubsequentEventType

us-gaap:NotesPayableRelatedPartiesCurrentAndNoncurrent
dei:LegalEntity
us-gaap:SubsequentEventType

us-gaap:NuclearFuelNetOfAmortization
dei:LegalEntity
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:OperatingLeaseResidualValueOfLeasedAsset
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
dei:LegalEntity
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
us-gaap:OtherCommitmentDueInFifthYear
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
us-gaap:OtherCommitmentDueInFourthYear
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
us-gaap:OtherCommitmentDueInSecondYear
dei:LegalEntity, pnm:CommitmentsAndContingenciesRelatedToEnvironmentAndOtherNature
us-gaap:OtherCommitmentDueInThirdYear

us-gaap:OtherDeferredCostsNet
dei:LegalEntity

us-gaap:OtherLongTermInvestments
dei:LegalEntity
us-gaap:ConsolidatedEntities

us-gaap:OtherReceivables
dei:LegalEntity
dei:LegalEntity, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
dei:LegalEntity

us-gaap:PropertyPlantAndEquipmentOtherNet
dei:LegalEntity

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
dei:LegalEntity
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress

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

us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantInService
dei:LegalEntity
dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant
dei:LegalEntity
us-gaap:RegulatoryAssets

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

us-gaap:RegulatoryAssetsNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:RegulatoryAsset
dei:LegalEntity, us-gaap:RegulatoryAsset, us-gaap:UnusualOrInfrequentItem
dei:LegalEntity
us-gaap:RegulatoryLiabilities
dei:LegalEntity, us-gaap:UnusualOrInfrequentItem

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

us-gaap:RegulatoryLiabilityNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:RegulatoryLiability
dei:LegalEntity, us-gaap:SubsequentEventType
us-gaap:RestrictedCashAndInvestments
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShortTermBorrowings
dei:LegalEntity
dei:LegalEntity, us-gaap:CreditFacility
dei:LegalEntity, us-gaap:DebtInstrument
dei:LegalEntity, us-gaap:ShortTermDebtType
us-gaap:ConsolidatedEntities
us-gaap:CreditFacility
us-gaap:ShortTermDebtType

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

us-gaap:UnbilledReceivablesCurrent
dei:LegalEntity
dei:LegalEntity
us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
dei:LegalEntity, us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance
us-gaap:ValuationAllowancesAndReservesType

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Income Tax Expense Benefit
Balance Sheet
Cash And Cash Equivalents At Carrying Value
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Operating Lease Right Of Use Asset
Liabilities
Operating Lease Liability
Current Liabilities
Contract With Customer Liability Current
Noncurrent Liabilities
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Inventories
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Proceeds From Payments For Other Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Dividends Common Stock Cash
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:CommonStockValue ███▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1425.71425.1331429.9411145.1521143.8221142.8791150.5521149.5831148.691148.3641153.1131150.6481149.6461150.5161157.6651156.9061156.631156.428
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁86.10786.055NA79.90679.87679.871NA80.00179.91779.971NA79.9879.97980.013NA80.15480.13180.112
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁86.06686.031NA79.86779.8479.871NA79.94879.91779.893NA79.86979.86579.859NA79.93879.90579.766
us-gaap:EarningsPerShareBasic ▅▄▄█▆▃▅▇▁▄▂▇▅▄▂▆▅▅0.620.20.111.520.72-0.190.41.29-0.950.23-0.71.10.480.19-0.680.920.470.29
us-gaap:EarningsPerShareDiluted ▅▄▄█▆▃▅▇▁▄▂▇▅▄▂▆▅▅0.620.20.11.520.72-0.190.41.28-0.950.23-0.691.090.480.19-0.680.920.470.29
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare █▁6.2e-072.0000000000000002e-07NA1.52e-067.2e-07-1.9e-07NA1.29e-06-9.499999999999999e-072.3000000000000002e-07NA1.1e-064.8e-071.9e-07NA9.200000000000001e-074.6999999999999995e-072.9e-07
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare █▁6.2e-072.0000000000000002e-07NA1.52e-067.2e-07-1.9e-07NA1.28e-06-9.499999999999999e-072.3000000000000002e-07NA1.0900000000000002e-064.8e-071.9e-07NA9.200000000000001e-074.6999999999999995e-072.9e-07
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 COGS Ratio us-gaap:ProductOrService us-gaap:Electricity▆▃▃█▃▂▂▆▂▂▂▆▃▁▂▆▃426.54364.707359.276472.465357.649333.622344.145433.586330.228349.645343.756422.666352.313317.878332.605419.9362.32NA
 COGS Ratio us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:Electricity,pnm:PublicServiceCompanyOfNewMexico▆▃▃█▂▂▂▆▁▃▂▆▃▁▂▆▃323.949271.213266.409364.504260.788248.133255.173331.113238.219269.318259.849331.374264.511236.232249.321327.254276.097NA
 COGS Ratio us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:Electricity,pnm:TexasNewMexicoPowerCompany▇▄▄█▅▂▃▇▄▁▂▄▃▁▂▄▂102.59193.49492.867107.96196.86185.48988.972102.47392.00980.32783.90791.29287.80281.64683.28492.64686.223NA
 EBT Margin dei:LegalEntity pnm:PublicServiceCompanyOfNewMexico▆▃▃█▂▂▂▆▁▃▂▆▃▁▂▆▃▂323.949271.213266.409364.504260.788248.133255.172331.113238.219269.318259.848331.374264.511236.232249.321327.254276.097251.558
 EBT Margin dei:LegalEntity pnm:TexasNewMexicoPowerCompany▇▅▄█▅▃▃▇▄▁▂▄▃▂▂▄▃▁102.59193.49492.867107.96196.86185.48988.972102.47392.00980.32783.90891.29287.80281.64683.28492.64686.22378.62
 Gross Margin us-gaap:ProductOrService us-gaap:Electricity▆▃▂█▂▁▂▆▁▂426.54364.707359.276472.465357.649333.622344.145433.586330.228349.645NANANANANANANANA
 Gross Margin us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:Electricity,pnm:PublicServiceCompanyOfNewMexico▆▃▃█▂▂▂▆▁▃323.949271.213266.409364.504260.788248.133255.173331.113238.219269.318NANANANANANANANA
 Gross Margin us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:Electricity,pnm:TexasNewMexicoPowerCompany▇▄▄█▅▂▃▇▄▁102.59193.49492.867107.96196.86185.48988.972102.47392.00980.327NANANANANANANANA
 Net profit Margin dei:LegalEntity pnm:PublicServiceCompanyOfNewMexico▆▃▃█▂▂▂▆▁▃▂▆▃▁▂▆▃▂323.949271.213266.409364.504260.788248.133255.172331.113238.219269.318259.848331.374264.511236.232249.321327.254276.097251.558
 Operating Margin dei:LegalEntity pnm:PublicServiceCompanyOfNewMexico▆▃▃█▂▂▂▆▁▃▂▆▃▁▂▆▃▂323.949271.213266.409364.504260.788248.133255.172331.113238.219269.318259.848331.374264.511236.232249.321327.254276.097251.558
 Operating Margin dei:LegalEntity pnm:TexasNewMexicoPowerCompany▇▅▄█▅▃▃▇▄▁▂▄▃▂▂▄▃▁102.59193.49492.867107.96196.86185.48988.972102.47392.00980.32783.90891.29287.80281.64683.28492.64686.22378.62
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:ComprehensiveIncomeNetOfTax ▆▄▄█▆▃▅▇▁▄▁▇▅▄▂▆▅▅56.69814.4219.471124.47368.335-19.3131.309104.072-72.85724.145-62.28189.79839.97116.618-50.13576.83340.41826.855
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▆▄▁▄▆▅▆▅▄▁▄▆▇▅▄█▄▄3.923.4942.7913.5533.943.7294.0533.863.4992.833.4063.924.1093.6773.5654.4563.5443.452
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆▄▄█▆▃▅▇▁▄▁▇▅▄▂▆▅▅60.7518.04622.394128.15872.407-15.44935.494108.064-69.22627.107-58.74393.8544.21220.427-46.43881.42144.09430.439
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService pnm:PublicServiceCompanyOfNewMexico,us-gaap:Electricity█▄▅▆▂▃▃▄▁▅▄▅▂▂▃▄▄123.76888.88694.475108.28467.88474.52474.60584.91558.86699.33984.48992.38466.36170.80275.04282.36782.952NA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService pnm:PublicServiceCompanyOfNewMexico,us-gaap:ElectricityGeneration▅▅▆▁▂▃▃▁█▃▇▁▇▄▆▂▃37.43936.89639.86631.14833.34533.61833.69230.87742.90535.07240.88931.3541.88835.3539.331.9734.393NA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService pnm:TexasNewMexicoPowerCompany,us-gaap:Electricity█▆▆▅▅▄▄▃▄▂▁▁▁▂▁▁▁28.90826.5126.20225.70725.97924.18624.06223.82124.91622.28721.43421.15221.3521.75421.61921.38121.315NA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService,us-gaap:UnusualOrInfrequentItem pnm:PublicServiceCompanyOfNewMexico,pnm:NaturalGasCost,pnm:UnusualWeatherNA8.0NANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity,us-gaap:ProductOrService,us-gaap:UnusualOrInfrequentItem pnm:PublicServiceCompanyOfNewMexico,us-gaap:ElectricityPurchased,pnm:UnusualWeatherNA20.0NANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:Electricity█▄▅▆▂▃▃▄▁▅▃▄▁▂▂▃▃152.676115.396120.677133.99193.86398.7198.667108.73683.782121.626105.923113.53687.71192.55696.661103.748104.267NA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:ElectricityGeneration▅▅▆▁▂▃▃▁█▃▇▁▇▄▆▂▃37.43936.89639.86631.14833.34533.61833.69230.87742.90535.07240.88931.3541.88835.3539.331.9734.393NA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:Electricity,pnm:PublicServiceCompanyOfNewMexico█▄▅▆▂▃▃▄▁▅▄▅▂▂▃▄▄123.76888.88694.475108.28467.88474.52474.60584.91558.86699.33984.48992.38466.36170.80275.04282.36782.952NA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:Electricity,pnm:TexasNewMexicoPowerCompany█▆▆▅▅▄▄▃▄▂▁▁▁▂▁▁▁28.90826.5126.20225.70725.97924.18624.06223.82124.91622.28721.43421.15221.3521.75421.61921.38121.315NA
us-gaap:CostOfGoodsAndServicesSoldDepreciationAndAmortization ██▇▇█▇▇▇▆▅▃▃▂▂▂▂▁70.72769.87468.21768.470.02268.97368.03768.3566.06565.35660.82361.5860.06358.72259.11358.82157.625NA
us-gaap:GainLossOnInvestments ▇▅█▇█▁▆▅▆▇▃▆▅▅▆▆▆▆13.1920.96818.42714.40121.62-32.8499.291.6864.59914.014-18.2572.463-1.670.2889.4315.4065.6636.661
us-gaap:GeneralAndAdministrativeExpense ▄▆█▃▃▂▂▂▁▄▂▃▁▃▂▂▂▂52.47359.46568.23851.61150.45346.03246.44547.61342.83352.33646.86349.96943.35548.28347.42246.26845.12247.532
 us-gaap:GrossProfit us-gaap:ProductOrService us-gaap:Electricity▄▂▂█▃▁▂▇▂▁273.864249.311238.599338.474263.786234.912245.478324.85246.446228.019NANANANANANANANA
 us-gaap:GrossProfit us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:Electricity,pnm:PublicServiceCompanyOfNewMexico▃▂▁█▃▁▂▇▂▁200.181182.327171.934256.22192.904173.609180.568246.198179.353169.979NANANANANANANANA
 us-gaap:GrossProfit us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:Electricity,pnm:TexasNewMexicoPowerCompany▆▄▃█▅▂▃▇▄▁73.68366.98466.66582.25470.88261.30364.9178.65267.09358.04NANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆▅▅█▆▄▅▇▁▅▂▇▆▅▄█▆▅66.0622.77117.611137.78465.836-13.27943.128115.951-115.11422.885-62.602104.47247.60519.5824.601121.0762.86737.221
us-gaap:IncomeTaxExpenseBenefit ▅▄▄▅▄▄▅▅▁▄▃▅▄▄█▇▆▅8.2991.5665.9112.3314.275-1.887.1389.188-42.8311.223-11.06312.8995.1560.78355.18642.74321.63610.775
us-gaap:IncomeTaxesPaidNet NANA0.01.10.0-0.1310.0-0.161-2.533-0.2350.00.00.85-0.0080.00.00.75-0.125
 us-gaap:IncomeTaxesPaidNet dei:LegalEntity pnm:TexasNewMexicoPowerCompanyNANA15.8211.10.0-0.13112.9960.00.85-0.2353.4240.00.85-0.00820.6860.00.750.0
us-gaap:InterestExpense ▁▂▂▃▆▆▅▆▅▇▆▆██▇▇▇▇24.11925.88425.60727.26331.08830.43429.23130.35929.79131.63430.37630.49233.32133.05531.48832.10632.33231.7
us-gaap:InterestPaidNet ▃▂▂▃▅▃▄▂█▁25.8123.31722.43626.53930.94226.65829.75524.18241.02120.518NANANANANANANANA
us-gaap:NetIncomeLoss NANA8.778121.76857.489-15.2631.805102.771-75.91418.7-55.07787.52138.20814.99-54.28273.73937.55522.862
 us-gaap:NetIncomeLoss dei:LegalEntity pnm:NMRD█▂▃█▇▂▂▂▃▁▁▄▃▂1.4690.2280.2731.3621.1690.0870.1520.1620.448-0.10.00.50.40.1NANANANA
 us-gaap:NetIncomeLoss dei:LegalEntity pnm:PublicServiceCompanyOfNewMexico▆▅▅█▆▄▅▇▁▅▂▇▅▅▃▇▅▅41.48418.66816.80399.45145.672-15.92527.98880.861-86.81219.144-56.80677.50826.6727.837-32.02160.82726.93216.658
 us-gaap:NetIncomeLoss dei:LegalEntity pnm:TexasNewMexicoPowerCompany▅▃▄█▅▃▄█▅▂▄▅▅▃▁▅▄▃15.658.73511.39823.92116.1747.09211.34725.08715.2674.09810.71116.115.3679.4131.02414.72712.2047.604
 us-gaap:NetIncomeLoss dei:LegalEntity,us-gaap:StatementEquityComponents pnm:TexasNewMexicoPowerCompany,us-gaap:RetainedEarnings▅▃▄█▅▃▄█▅▂▄▅▅▃▁▅▄▃15.658.73511.39823.92116.1747.09211.34725.08715.2674.09810.71216.115.3679.4131.02414.72712.2047.604
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▆▄▁▄▆▅▆▅▄▁▄▆▇▅▄█▄▄3.923.4942.7913.5533.943.7294.0533.863.4992.833.4063.924.1093.6773.5654.4563.5443.452
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▆▄▄█▆▃▅▇▁▄▂▇▅▄▂▆▅▄53.70917.5798.778121.76857.489-15.2631.805102.771-75.91418.7-55.07787.52138.20814.99-54.28273.73937.55522.862
 us-gaap:OperatingExpenses dei:LegalEntity pnm:NMRD██▇▇▄▅▂▂▂▂▂▁▂2.4162.5222.3242.11.4721.580.790.730.6550.7960.6580.4720.657NANANANANA
us-gaap:OperatingIncomeLoss ▆▅▄█▆▅▅█▁▅▃▇▆▅▄█▆▅74.20343.16618.588147.80571.1547.73860.552140.54-93.61536.723-17.404127.9979.32946.13222.936142.48485.10555.96
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▃█▅█▂▄▄▅▆▁▅▄▄▅▅▅▅2.989-3.15910.6932.70510.846-4.05-0.4961.3013.0575.445-7.2042.2771.7631.6284.1473.0942.8633.993
us-gaap:OtherIncome ▄▄▇█▄▁▄▄▃▃▆▃▅▃▅▇▃▅4.6544.2526.2457.0224.392.3164.3324.2563.353.4155.5863.7354.7963.4694.8896.2753.454.902
us-gaap:OtherNonoperatingIncomeExpense ▇▅█▇█▁▆▆▆▇▃▆▅▆▆▆▆▆15.9765.48924.6317.24225.774-30.58311.8075.778.29217.796-14.8226.9741.5976.50513.15310.69210.09412.961
us-gaap:ProfitLoss ▆▄▄█▆▃▅▇▁▄▂▇▅▄▂▆▅▄57.76121.20511.701125.45361.561-11.39935.989106.763-72.28321.662-51.53991.57342.44918.799-50.58578.32741.23126.446
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▄▃▄█▃▂▃▆▂▂▃▆▃▁▁▅▂▁368.893346.585359.276455.12343.075322.983344.144418.673314.917315.698343.756400.023338.659303.351304.639392.607326.586297.191
us-gaap:Revenues ▆▃▃█▃▂▂▆▂▂▂▆▃▁▂▆▃▂426.54364.707359.276472.465357.649333.622344.144433.586330.228349.645343.756422.666352.313317.878332.605419.9362.32330.178
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:Assets █▇▇▆▆▅▄▄▃▄▃▃▂▂▂▂▁▁8120.4697943.3097939.8547742.1127574.4677375.1197298.7747200.9327048.6677250.7586865.5516848.9956750.0896676.3936646.1036697.2546584.4456477.679
us-gaap:Liabilities █▇▇█▇▆▆▅▅▅▃▃▂▂▂▂▁▁5963.5425843.5545819.8515897.9885806.5115676.0215545.4955454.3155362.3985491.7715101.4285000.9444950.2454915.854873.1264852.5794777.4714711.166
us-gaap:LiabilitiesAndStockholdersEquity █▇▇▆▆▅▄▄▃▄▃▃▂▂▂▂▁▁8120.4697943.3097939.8547742.1127574.4677375.1197298.7747200.9327048.6677250.7586865.5516848.9956750.0896676.3936646.1036697.2546584.4456477.679
us-gaap:StockholdersEquity █▇▇▃▂▁▂▂▁▂▂▃▃▂▂▃▃▂2088.2312030.9662049.4651773.3161696.51627.2221678.6981670.9131612.1481684.6791688.3821771.2981722.7151683.6141695.2531765.7371727.261686.64
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AssetsCurrent ▅▃▅▅▃▁▂▃▂█▂▄▃▁▂▅▄▃391.893328.478377.479377.985326.884287.962294.01341.164299.076457.073302.524363.925331.242277.299294.42374.535353.587326.769
 us-gaap:Cash dei:LegalEntity pnm:NMRD▅▃▅▄▃█▄▁▁▅▁7.7815.0058.0466.5275.67212.8487.1872.2432.7338.02.6NANA2.66.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue NANA47.928NANANA3.833NANANA2.122NANANA3.97443.1492.1932.283
 us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity pnm:PublicServiceCompanyOfNewMexicoNANA31.446NANANA1.001NANANA0.085NANANA1.10839.370.0260.094
 us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity pnm:TexasNewMexicoPowerCompanyNANA14.8NANANA1.0NANA162.3570.00.00.00.01.72.4220.0010.001
 us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities srt:ParentCompanyNANA0.052NANANA0.079NANANA0.093NANANA0.021NANANA
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us-gaap:AccountsReceivableNetCurrent ▆▄▅█▃▁▁▅▁▃▂▄▂▁▂▄▂▁123.54102.462113.41135.496.20983.08985.889115.44883.66994.62492.8108.64889.15884.15690.473107.42886.59882.234
us-gaap:InventoryNet ▁▁▃▃▄▆██▆▄▅▇▇▄▃▄▃▃61.96662.11366.41767.43569.67674.12477.92977.74274.4968.00871.83475.23474.78569.47866.50268.17967.00766.14
us-gaap:OtherAssetsCurrent ▆▆█▃▄▁▁▃▃▄▄▄▄▂▂▅██60.13860.76464.54950.0751.27942.95644.47248.76149.25953.86353.72553.06851.81846.38947.35856.42165.466.093
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
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us-gaap:ConstructionInProgressGross ▅▅▃█▆▄▁▄▂▃▂▃▃▅▄▅▄▃293.05282.704218.719379.848309.513240.002161.106258.285202.991225.485194.427227.367220.065284.87245.933301.466252.759232.056
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us-gaap:Goodwill ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄278.297278.297278.297278.297278.297278.297278.297278.297278.297278.297278.297278.297278.297278.297278.297278.297278.297278.297
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  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AccountsPayableCurrent ▅▄█▂▂▃▃▂▂▂▄▁▂▂▅▃▂▁128.249110.577169.31784.68475.93395.194103.11881.67980.90877.893112.1772.56882.85178.427121.38389.88278.32467.439
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us-gaap:DividendsPayableCurrent ▁██▇▁▇▇▇▁▇▇▆▁▆▆▆▁▆0.13228.24328.24324.6250.13224.62524.62523.2310.13223.23123.23121.240.13221.2421.2419.4480.13219.448
us-gaap:LiabilitiesCurrent ▂█▄▆▆▅▄▄▂▂▁▄▄▃▃▂▃▄636.4671511.12977.6621251.5791265.7741114.92967.481945.729666.541664.133512.453980.475962.15782.753835.644710.885766.57962.136
us-gaap:LongTermDebtCurrent ▃█▅▆▆▅▄▄▂▂▁▄▄▃▃▂▂▄250.0511010.559575.518779.597779.372539.555490.268385.227100.187172.3020.0471.88471.69309.565256.895165.312174.257414.856
us-gaap:OperatingLeaseLiabilityCurrent ▂▅▄▂▂█▇▅▃▁26.47228.1627.4626.82626.74429.69329.06828.20427.39626.197NANANANANANANANA
us-gaap:OtherLiabilitiesCurrent █▅▆▆▅▂▃▂▁▁▄▃▄▂▄▇▇▆72.84256.1562.84162.65156.57445.95947.39746.5141.59239.45254.67850.78154.25943.58653.8567.06966.35363.287
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
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us-gaap:LongTermDebtNoncurrent █▂▅▄▄▄▄▄▅▆▅▂▂▃▂▃▂▁3186.0522205.1332719.6322509.7522437.2462468.722517.4492467.0022672.1552771.9392670.1112142.6312122.3522271.9842180.752282.392199.1051969.304
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us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ▁▁▂▅▅▅▅▅▅▆▆▄▄▅▅███50.58454.27458.10186.1787.24891.14695.03788.33592.43496.374100.37580.87184.93488.8494.003116.812119.243121.632
us-gaap:MinorityInterest ▁▁▂▂▃▃▅▅▄▅▅▆▆▆▇▇██57.16757.2659.00959.27959.92760.34763.05264.17562.59262.77964.21265.22465.665.466.19567.40968.18568.344
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us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA7.673NANA8.8338.83319.42318.87918.879NANANANANANANANA
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us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA27.827NANA35.48835.48944.32143.4943.49NANANANANANANANA
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  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:StockholdersEquity █▇▇▃▂▁▂▂▁▂▂▃▃▂▂▃▃▂2088.2312030.9662049.4651773.3161696.51627.2221678.6981670.9131612.1481684.6791688.3821771.2981722.7151683.6141695.2531765.7371727.261686.64
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest █▇▇▃▂▁▂▂▁▂▂▃▃▂▂▃▃▂2145.3982088.2262108.4741832.5951756.4271687.5691741.751735.0881674.741747.4581752.5941836.5221788.3151749.0141761.4481833.1461795.4451754.984
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 us-gaap:AdditionalPaidInCapital dei:LegalEntity pnm:TexasNewMexicoPowerCompany█▇▇▅▅▅▅▃▃▃▃▂▂▂▂▁▁▁737.166685.166685.166614.166614.166614.166614.166534.166534.166534.166534.166504.166504.166504.166504.166454.166454.166454.166
us-gaap:RetainedEarningsAccumulatedDeficit █▆▆▇▄▂▄▃▁▄▄▇▅▄▄▆▅▃741.884688.175698.707718.04645.259587.77627.523620.211563.64639.554643.953722.13676.826638.618633.528691.332656.225618.67
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax █▇█▅▅▂▃▃▃▂▁▃▂▂▄▇▆▆-79.353-82.342-79.183-89.876-92.581-103.427-99.377-98.881-100.182-103.239-108.684-101.48-103.757-105.52-95.94-82.501-85.595-88.458
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity pnm:PublicServiceCompanyOfNewMexico█▇█▆▅▃▃▄▃▂▁▂▂▂▄▇▆▆-79.353-82.134-78.511-88.745-90.992-101.586-99.055-98.414-99.948-104.265-110.422-104.521-106.709-108.019-97.093-82.605-85.594-88.39
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities srt:ParentCompanyNANA-79.183NANANA-99.377NANANA-108.685NANANA-95.94NANANA
us-gaap:MinorityInterest ▁▁▂▂▃▃▅▅▄▅▅▆▆▆▇▇██57.16757.2659.00959.27959.92760.34763.05264.17562.59262.77964.21265.22465.665.466.19567.40968.18568.344
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁█1.4934.219NA1.331.4293.801NA0.8981.2693.257NA1.2260.4312.894NA0.7611.8742.687
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▄▆▂▄▅█▆▁▃▄▅▄▄▅4.0135.2433.0614.2014.366.4345.1762.2773.6864.2634.4184.2963.9094.472NA5.2323.7034.028
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▂▂▄▇▂▃▅▆▂▃▃▇▁▂▃█▂▄88.08686.477117.743202.17571.98393.799151.907179.39167.181104.684111.329182.99754.97478.926107.125215.71870.015131.604
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▃▁▄▁▄▂▃▄▄▄▆█▆▅▆▇▇-163.947-174.455-206.429-160.143-214.388-152.839-189.605-172.182-160.209-151.902-149.197-126.277-81.066-119.184-137.121-115.675-106.752-106.615
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity pnm:PublicServiceCompanyOfNewMexico▆▄▂▆▁▆▁▅▅▆▄██▇▂▅█▇-74.341-90.99-105.932-72.212-115.229-73.217-116.596-81.205-84.644-78.827-91.845-62.388-59.477-63.862-111.003-83.535-60.207-67.156
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity pnm:TexasNewMexicoPowerCompany▂▃▁▂▂▄▅▃▄▅▅▅▄▆▇█▆▇-85.835-76.149-92.529-80.976-87.581-60.419-58.952-70.678-65.752-58.624-52.663-55.424-65.405-49.956-38.581-27.974-42.595-36.345
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▄▅▃▆▅▃▃▁█▃▂▄▄▃▂▄▂86.79747.571105.721-13.962128.97971.45621.4378.659-82.834225.1845.026-26.64527.19840.067-9.179-59.08736.647-27.228
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▅▄▅▅▄▅▄▅▁█▄▅▅▄▄▅▄▄10.936-40.40717.03528.07-13.42612.416-16.26115.868-175.862177.966-32.84230.0751.106-0.191-39.17540.956-1.09-2.239
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▅▄▅▅▄▄▅▅▁▄▃▅▄▄█▇▆▅7.9151.4476.60111.7173.913-1.8267.8358.71-43.0521.122-10.68712.8185.1210.76755.30442.78121.65610.787
us-gaap:DepreciationDepletionAndAmortization ▇▇█▆▇▆▆▆▅▅▂▃▃▂▂▂▁▁79.34778.85781.13177.73878.26477.53575.88677.09274.14473.94668.23570.38669.27267.74867.90868.42565.97365.888
us-gaap:IncreaseDecreaseInAccountsPayable ▇▄█▅▅▅▆▅▇▄▇▄▆▁▇▆▆▅10.637-9.64715.519-2.197-4.695-1.2245.197-4.6576.83-7.64211.924-11.4095.724-26.95310.7395.7811.8-3.852
us-gaap:IncreaseDecreaseInInventories ▄▁▃▂▁▁▄▆█▁▂▄▇▆▃▅▄▃-0.146-4.305-1.017-2.242-4.447-3.8060.1873.2526.482-3.826-3.40.4495.3062.976-1.6761.1720.867-1.836
 us-gaap:IncreaseDecreaseInInventories dei:LegalEntity pnm:PublicServiceCompanyOfNewMexico▄▁▃▃▁▁▄▆█▂▃▄▇▅▃▄▄▃-0.613-4.341-0.808-2.172-4.433-4.34-0.1472.8526.094-3.671-1.070.2374.8242.247-2.1570.2060.492-2.083
 us-gaap:IncreaseDecreaseInInventories dei:LegalEntity pnm:TexasNewMexicoPowerCompany▇▆▆▆▆▇▇▇▇▆▁▆▇▇▇█▇▆0.4670.036-0.209-0.07-0.0140.5340.3340.40.388-0.155-2.330.2120.4820.7290.4810.9660.3750.247
us-gaap:NetCashProvidedByUsedInOperatingActivities ▂▂▄▇▂▃▅▆▂▃▃▇▁▂▃█▂▄88.08686.477117.743202.17571.98393.799151.907179.39167.181104.684111.329182.99754.97478.926107.125215.71870.015131.604
us-gaap:NetIncomeLoss NANA8.778121.76857.489-15.2631.805102.771-75.91418.7-55.07787.52138.20814.99-54.28273.73937.55522.862
 us-gaap:NetIncomeLoss dei:LegalEntity pnm:NMRD█▂▃█▇▂▂▂▃▁▁▄▃▂1.4690.2280.2731.3621.1690.0870.1520.1620.448-0.10.00.50.40.1NANANANA
 us-gaap:NetIncomeLoss dei:LegalEntity pnm:PublicServiceCompanyOfNewMexico▆▅▅█▆▄▅▇▁▅▂▇▅▅▃▇▅▅41.48418.66816.80399.45145.672-15.92527.98880.861-86.81219.144-56.80677.50826.6727.837-32.02160.82726.93216.658
 us-gaap:NetIncomeLoss dei:LegalEntity pnm:TexasNewMexicoPowerCompany▅▃▄█▅▃▄█▅▂▄▅▅▃▁▅▄▃15.658.73511.39823.92116.1747.09211.34725.08715.2674.09810.71116.115.3679.4131.02414.72712.2047.604
 us-gaap:NetIncomeLoss dei:LegalEntity,us-gaap:StatementEquityComponents pnm:TexasNewMexicoPowerCompany,us-gaap:RetainedEarnings▅▃▄█▅▃▄█▅▂▄▅▅▃▁▅▄▃15.658.73511.39823.92116.1747.09211.34725.08715.2674.09810.71216.115.3679.4131.02414.72712.2047.604
us-gaap:ProfitLoss ▆▄▄█▆▃▅▇▁▄▂▇▅▄▂▆▅▄57.76121.20511.701125.45361.561-11.39935.989106.763-72.28321.662-51.53991.57342.44918.799-50.58578.32741.23126.446
us-gaap:ShareBasedCompensation ▃█▃▃▃▇▂▂▃▆▅▂▁▆▂▂▄▅1.4934.2191.5811.331.4293.8010.990.8981.2693.2572.5691.2260.4312.8940.8720.7611.8742.687
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▃▁▄▁▄▂▃▄▄▄▆█▆▅▆▇▇-163.947-174.455-206.429-160.143-214.388-152.839-189.605-172.182-160.209-151.902-149.197-126.277-81.066-119.184-137.121-115.675-106.752-106.615
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity pnm:PublicServiceCompanyOfNewMexico▆▄▂▆▁▆▁▅▅▆▄██▇▂▅█▇-74.341-90.99-105.932-72.212-115.229-73.217-116.596-81.205-84.644-78.827-91.845-62.388-59.477-63.862-111.003-83.535-60.207-67.156
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity pnm:TexasNewMexicoPowerCompany▂▃▁▂▂▄▅▃▄▅▅▅▄▆▇█▆▇-85.835-76.149-92.529-80.976-87.581-60.419-58.952-70.678-65.752-58.624-52.663-55.424-65.405-49.956-38.581-27.974-42.595-36.345
us-gaap:PaymentsToAcquireProductiveAssets ▅▆▆▄█▃▅▄▄▃▃▁▂▁▄▂▁▁162.798172.235183.694151.527203.599140.208171.353151.844151.09141.986135.729119.897127.896117.691147.038122.541116.052114.83
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▄▅▃▆▅▃▃▁█▃▂▄▄▃▂▄▂86.79747.571105.721-13.962128.97971.45621.4378.659-82.834225.1845.026-26.64527.19840.067-9.179-59.08736.647-27.228
us-gaap:ProceedsFromIssuanceOfLongTermDebt █▃▃▄▆▁▂▂▁▅▂▂▄▃▁▃▁▁925.0220.0230.0377.5660.3450.0190.080.00.0475.0155.0120.0410.0299.6520.0260.057.00.0
us-gaap:RepaymentsOfLongTermDebt █▄▃▄▅▁▁▁▃▃▂▂▅▃▁▃▂▁705.0300.0225.0302.5450.3450.035.00.0172.302200.0100.0100.025395.111155.02610.747185.87668.0039.444
us-gaap:PaymentsOfDividendsCommonStock ██▃▃▃▃▁▁▁▁28.24328.24324.62624.62524.62624.62523.23123.23223.23123.232NANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▂▆▁▁▁█▁▁▂▆▁▁▂█▁▁▂█0.9269.0270.00.00.48611.4980.0210.0050.9568.9360.130.2371.42310.8450.1130.652.13411.032
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1425142514291145114311421150114911481148115311501149115011571156115611561163116211621162116611651165116511731172117211721178117711761182118311861187119313181290128912901289
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.617.918.014.815.115.515.816.016.315.816.816.817.017.217.417.317.617.918.018.218.318.519.419.319.719.620.120.520.921.321.421.721.922.022.522.622.922.924.524.424.724.724.1

us-gaap:CommonStockValue dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1494149414941264126412641264126412641264126412641264126412641264126412641264126412401236123610611061106110611061106110611061106110611061101810181018
Percentage of CommonStockValue104.9104.9104.5110.5110.6110.7109.9110.0110.1110.1109.7109.9110.0109.9109.3109.3109.4109.4108.7108.8106.8106.4106.090.590.690.690.190.290.289.889.789.589.489.077.378.978.9
Percentage of Assets18.418.818.816.316.717.217.317.617.917.418.418.518.718.919.018.919.219.519.519.819.519.720.618.218.919.319.319.619.819.820.220.220.420.419.019.219.5
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico26.426.926.823.223.524.024.124.424.824.325.125.125.325.725.725.225.626.026.026.426.026.226.923.824.725.225.125.325.625.526.126.126.325.925.926.026.3

us-gaap:CommonStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Common
Period End2020-12-312019-12-312018-12-312017-12-31
Value1429115011531157
Percentage of CommonStockValue100.0100.0100.0100.0
Percentage of Assets18.015.816.817.4
Percentage of Assets srt:ParentCompany51.248.751.351.5

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value86867979798079797979808080808080808080808080808080808080809192929191
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value86867979797979797979797979797979797979797979797979797979799191919191
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.620.20.111.520.72-0.190.41.29-0.950.23-0.71.10.480.19-0.680.920.470.290.320.680.340.13-1.150.770.40.180.240.70.370.160.10.680.350.130.110.730.270.211.360.480.040.18-1.180.530.25-0.09
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.620.20.11.520.72-0.190.41.28-0.950.23-0.691.090.480.19-0.680.920.470.290.310.680.340.13-1.150.760.40.180.240.690.360.160.10.680.340.130.110.720.270.211.350.480.040.18-1.180.530.25-0.09
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.620.21.520.72-0.191.29-0.950.231.10.480.190.920.470.290.680.340.130.770.40.180.70.370.160.680.350.130.730.270.211.280.480.040.18-1.180.530.25-0.09
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.620.21.520.72-0.191.28-0.950.231.090.480.190.920.470.290.680.340.130.760.40.180.690.360.160.680.340.130.720.270.211.260.480.040.18-1.180.530.25-0.09
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value56141912468-19.3131104-72.85724-62.281893916-50.1357640266.00155277.18-91.555327161355301322602515-11.681591923118411.36817-119.7444611-6.436
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.44.25.427.319.9-6.09.124.9-23.17.6-18.122.411.85.50.019.612.49.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value44152710156-18.4562782-82.49525-62.70879278.119-28.715632920-3.07441161.605-96.852421612218.52917532416-14.8555214241834-3.8784.604-4.636392.084
Percentage of ComprehensiveIncomeNetOfTax78.1104.3138.981.782.395.687.379.2113.2104.8100.788.870.048.957.383.173.677.1-51.275.159.922.4105.879.062.575.071.064.377.389.293.9105.8127.288.476.1103.415.984.4-283.526.63.985.217.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.04.37.522.316.4-5.77.919.7-26.28.0-18.219.98.32.70.016.39.17.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico16.36.00.029.722.7-7.80.026.4-36.210.70.026.011.03.60.021.212.19.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.923.4942.7913.5533.943.7294.0533.863.4992.833.4063.924.1093.6773.5654.4563.5443.4523.4824.0063.7443.2874.0013.6783.853.382.9873.7013.9083.5313.6174.1273.5733.2043.3513.983.4553.2653.2834.1113.473.1833.2583.9093.2923.103
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.00.80.81.11.21.20.91.10.91.01.01.21.20.01.11.11.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3.923.4942.7913.5533.943.7294.0533.863.4992.833.4063.924.1093.6773.5654.4563.5443.4523.4824.0063.7443.2874.0013.6783.853.383.9083.5313.6174.1273.5733.2043.3513.983.4553.2653.2834.1113.473.1833.2583.9093.292
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.00.80.81.11.21.20.91.10.91.01.01.21.20.01.11.11.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico1.41.40.01.01.61.60.01.21.51.20.01.31.61.70.01.51.41.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value60182212872-15.44935108-69.22627-58.743934420-46.4388144309.615593110-87.4175731201658341626642918-8.198632227121454.9720-116.3545015-3.201
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.55.26.228.221.1-4.810.325.8-22.08.6-17.123.513.16.70.020.713.510.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value48182910560-14.7273186-78.99628-59.302833211-25.156833240.40845204.892-92.851462016251220572719-11.5045618272239-0.4087.787-1.378435.376
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest79.3102.7133.282.183.195.388.579.8114.1103.8101.089.172.657.754.283.975.579.34.276.664.546.2106.280.266.978.774.071.380.089.794.2104.1140.389.079.3102.518.285.5-8.237.81.286.135.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.15.38.323.117.5-4.69.120.6-25.18.9-17.320.99.53.90.017.410.28.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico17.77.40.030.824.3-6.20.027.7-34.611.90.027.312.65.30.022.713.510.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cost Of Goods And Services Sold

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

us-gaap:CostOfGoodsAndServicesSold

pnm:PublicServiceCompanyOfNewMexico, us-gaap:Electricity


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value123889410867747484589984926670758282
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax33.625.626.323.819.823.121.720.318.731.524.623.119.623.30.021.025.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:Electricity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:ElectricityGeneration


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3736393133333330423540314135393134
Percentage of CostOfGoodsAndServicesSold30.241.542.228.849.145.145.236.472.935.348.433.963.149.952.438.841.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.110.611.16.89.710.49.87.413.611.111.97.812.411.70.08.110.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:ElectricityGeneration0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany, us-gaap:Electricity


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2826262525242423242221212121212121
Percentage of CostOfGoodsAndServicesSold23.429.827.723.738.332.532.328.142.322.425.422.932.230.728.826.025.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.87.67.35.67.67.57.05.77.97.16.25.36.37.20.05.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany us-gaap:Electricity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

pnm:PublicServiceCompanyOfNewMexico, pnm:NaturalGasCost, pnm:UnusualWeather


Cost
Period End2021-03-31
Value8.0
Percentage of CostOfGoodsAndServicesSold9.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico pnm:NaturalGasCost pnm:UnusualWeather0.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:ElectricityPurchased, pnm:UnusualWeather


Cost
Period End2021-03-31
Value20
Percentage of CostOfGoodsAndServicesSold22.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:ElectricityPurchased pnm:UnusualWeather0.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService

us-gaap:Electricity


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value15211512013393989810883121105113879296103104
Percentage of CostOfGoodsAndServicesSold123.4129.8127.7123.7138.3132.5132.3128.1142.3122.4125.4122.9132.2130.7128.8126.0125.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax41.433.333.629.427.430.628.726.026.638.530.828.425.930.50.026.431.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ElectricityGeneration


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3736393133333330423540314135393134
Percentage of CostOfGoodsAndServicesSold30.241.542.228.849.145.145.236.472.935.348.433.963.149.952.438.841.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.110.611.16.89.710.49.87.413.611.111.97.812.411.70.08.110.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ElectricityGeneration0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:Electricity, pnm:PublicServiceCompanyOfNewMexico


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value123889410867747484589984926670758282
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax33.625.626.323.819.823.121.720.318.731.524.623.119.623.30.021.025.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Electricity, pnm:TexasNewMexicoPowerCompany


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2826262525242423242221212121212121
Percentage of CostOfGoodsAndServicesSold23.429.827.723.738.332.532.328.142.322.425.422.932.230.728.826.025.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.87.67.35.67.67.57.05.77.97.16.25.36.37.20.05.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cost Of Goods And Services Sold Depreciation And Amortization

us-gaap:CostOfGoodsAndServicesSoldDepreciationAndAmortization

us-gaap:CostOfGoodsAndServicesSoldDepreciationAndAmortization


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value7069686870686868666560616058595857
Percentage of CostOfGoodsAndServicesSoldDepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.220.219.015.020.421.419.816.321.020.717.715.417.719.40.015.017.6

us-gaap:CostOfGoodsAndServicesSoldDepreciationAndAmortization dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4241414041414040393938383836373636
Percentage of CostOfGoodsAndServicesSoldDepreciationAndAmortization60.160.061.059.259.660.159.959.360.360.063.462.563.662.463.962.563.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.512.111.68.912.212.811.99.712.612.411.29.611.312.10.09.411.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico15.616.70.011.816.817.60.013.017.516.60.012.615.016.50.012.214.8

pnm:TexasNewMexicoPowerCompany


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2222212222212122202016171616151615
Percentage of CostOfGoodsAndServicesSoldDepreciationAndAmortization31.831.830.932.931.931.731.732.231.030.927.127.926.827.926.727.927.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.16.45.94.96.56.86.35.36.56.44.84.34.85.40.04.24.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany23.123.30.019.923.625.00.020.623.625.30.018.319.220.30.017.919.5

us-gaap:CostOfGoodsAndServicesSoldDepreciationAndAmortization us-gaap:StatementBusinessSegments

pnm:PublicServiceCompanyOfNewMexico


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4241414041414040393938383836373636
Percentage of CostOfGoodsAndServicesSoldDepreciationAndAmortization60.160.061.059.259.660.159.959.360.360.063.462.563.662.463.962.563.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.512.111.68.912.212.811.99.712.612.411.29.611.312.10.09.411.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2222212222212122202016171616151615
Percentage of CostOfGoodsAndServicesSoldDepreciationAndAmortization31.831.830.932.931.931.731.732.231.030.927.127.926.827.926.727.927.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.16.45.94.96.56.86.35.36.56.44.84.34.85.40.04.24.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value5.7635.7355.515.3995.8915.6885.7135.85.7525.9185.7585.935.7375.7085.575.6335.58
Percentage of CostOfGoodsAndServicesSoldDepreciationAndAmortization8.18.28.17.98.48.28.48.58.79.19.59.69.69.79.49.69.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.61.71.51.21.71.81.71.41.81.91.71.51.71.90.01.41.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Gain Loss On Investments

us-gaap:GainLossOnInvestments

us-gaap:GainLossOnInvestments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value130.968181421-32.8499.291.6864.59914-18.2572.463-1.670.2889.4315.4065.6636.6614.1374.5314.6316.2183.9442.5365.5564.0242.2930.9624.6992.5733.6172.193.2721.5333.6395.716-0.7954.4541.297-4.1095.8945.9022.2622.206-1.3421.743
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.60.35.13.26.3-10.22.70.41.54.4-5.30.6-0.50.10.01.41.72.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GainLossOnInvestments dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value130.968181421-32.8499.291.6864.59914-18.2572.463-1.670.2889.4315.4065.6636.6614.1374.5314.6316.2183.9442.5365.5564.0244.6992.5733.6172.193.2721.5333.6395.716-0.7954.4541.297-4.1095.8945.9022.2622.206-1.342
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.60.35.13.26.3-10.22.70.41.54.4-5.30.6-0.50.10.01.41.72.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico4.90.40.04.28.7-13.90.00.52.05.90.00.8-0.70.10.01.82.33.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value52596851504646474252464943484746454752464547484639433942454344464344524545446069685868716262
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.217.219.011.314.714.313.511.413.616.613.612.512.815.90.011.813.816.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value46474745454140444047434440434542414346413942434136394038414036384841403946373834364237
Percentage of GeneralAndAdministrativeExpense87.979.370.188.289.390.587.893.493.990.693.189.994.490.695.890.892.990.689.288.186.789.288.990.492.690.289.888.092.486.784.986.792.590.989.887.276.354.456.158.753.259.160.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.513.613.310.013.112.911.910.612.815.012.711.212.114.40.010.712.814.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico17.018.80.013.318.217.70.014.317.620.10.014.716.119.60.014.017.019.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value111211111010109.4189.097119.39.7818.852109.426109.23510109.588109.599.8099.0718.0429.8338.7689.8412101011101010109.6879.998109.6659.1389.628.818
Percentage of GeneralAndAdministrativeExpense21.020.616.723.021.323.422.519.821.222.119.819.620.422.219.923.320.521.919.220.422.620.420.019.620.122.419.422.427.422.724.824.919.222.422.323.415.914.314.716.513.413.514.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.03.53.22.63.13.33.02.22.93.72.72.42.63.50.02.72.83.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany11.312.80.010.511.312.40.08.810.514.50.010.410.513.30.011.711.513.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Gross Profit

us-gaap:GrossProfit us-gaap:ProductOrService

us-gaap:GrossProfit

us-gaap:Electricity


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value273249238338263234245324246228
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax74.271.966.474.476.972.771.377.678.372.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity0.00.00.00.00.00.00.00.00.00.0

us-gaap:GrossProfit us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:Electricity, pnm:PublicServiceCompanyOfNewMexico


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value200182171256192173180246179169
Percentage of GrossProfit73.173.172.175.773.173.973.675.872.874.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax54.352.647.956.356.253.852.558.857.053.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.0

us-gaap:Electricity, pnm:TexasNewMexicoPowerCompany


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value73666682706164786758
Percentage of GrossProfit26.926.927.924.326.926.126.424.227.225.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.019.318.618.120.719.018.918.821.318.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.00.00.0

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value66221713765-13.27943115-115.11422-62.60210447194.601121623741854621-133.8311005326389049221289512112953630199739.40429-174.4268139
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.96.64.930.319.2-4.112.527.7-36.67.2-18.226.114.16.50.030.819.212.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value53242511654-14.5553894-126.79423-70.381903311-5.766100452728642811-149.56580361937155.8767944218.07986303127671.2259.3599.6326918
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest80.6109.8143.884.682.8109.688.381.3110.1104.6112.486.669.657.0-125.383.473.274.768.274.962.252.9111.879.869.673.176.167.847.789.386.397.462.790.282.4106.413.991.513.031.8-5.584.945.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.47.27.025.615.9-4.511.122.5-40.37.6-20.522.69.83.70.025.714.19.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico19.610.00.034.122.0-6.20.030.2-55.610.10.029.613.05.00.033.618.712.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value179.6121326177.7341227164.371520191113221911152116111321181215101016136.0161014124.7998.159146.6496.7414.486126.771
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest26.442.275.319.027.0-58.228.823.6-14.519.1-25.519.841.760.7295.019.030.630.336.625.535.655.8-10.221.435.246.630.848.189.318.325.927.480.815.034.416.04.119.770.722.9-2.614.817.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.72.83.75.75.22.43.66.55.31.44.75.25.93.90.05.95.93.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany18.010.10.023.118.78.90.025.619.35.50.022.123.714.70.025.024.015.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:StatementBusinessSegments

pnm:PublicServiceCompanyOfNewMexico


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value53242511654-14.5553894-126.79423-70.381903311-5.766100452728642811-149.56580361927743715
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest80.6109.8143.884.682.8109.688.381.3110.1104.6112.486.669.657.0-125.383.473.274.768.274.962.252.9111.879.869.673.170.881.976.167.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.47.27.025.615.9-4.511.122.5-40.37.6-20.522.69.83.70.025.714.19.40.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value179.6121326177.7341227164.371520191113221911152116111321181214191510
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest26.442.275.319.027.0-58.228.823.6-14.519.1-25.519.841.760.7295.019.030.630.336.625.535.655.8-10.221.435.246.637.821.930.848.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.72.83.75.75.22.43.66.55.31.44.75.25.93.90.05.95.93.80.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-4.66-11.837-20.972-4.934-6.448-6.458-7.346-5.61-5.069-5.432-8.211-6.702-5.381-3.472-3.205-2.853-2.332-1.89-2.011-0.381.037-1.8422.094-1.191-2.548-5.205-3.32-3.449-3.41-3.59
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest-7.1-52.0-119.1-3.6-9.848.6-17.0-4.84.4-23.713.1-6.4-11.3-17.7-69.7-2.4-3.7-5.1-4.8-0.42.2-8.7-1.6-1.2-4.8-19.7-8.6-3.8-6.9-15.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.3-3.4-5.8-1.1-1.9-2.0-2.1-1.3-1.6-1.7-2.4-1.7-1.6-1.10.0-0.7-0.7-0.60.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.2991.5665.91124.275-1.887.1389.188-42.8311.223-11.063125.1560.783554221101327157.157-46.54635178.5171631156.420.91330207.9690.30133119.52684251.7359.506-69.622813-4.939
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.20.51.62.71.2-0.62.12.2-13.60.4-3.23.21.50.30.010.96.63.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value7.8442.8345.73134.895-2.3596.0229.525-43.4811.973-16.989.0122.345-0.3482235157.7088.791199.1773.61-57.31827115.775134.083-0.3827146.589-1.216319.841101025-0.8722.3951.679255.901
Percentage of IncomeTaxExpenseBenefit94.5181.097.0110.2114.5125.584.4103.7101.5161.3153.569.945.5-44.441.183.471.771.566.770.858.750.4123.176.266.467.882.563.6-41.691.373.582.7-404.093.185.2113.912.996.5-50.325.2-2.490.043.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.10.81.63.01.4-0.71.72.3-13.80.6-4.92.30.7-0.10.09.14.82.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico2.91.10.04.02.0-1.00.03.1-19.10.80.02.90.9-0.20.011.96.33.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1.8220.8771.8612.2021.6030.6421.0642.2281.4820.2725.2784.6344.4932.475128.2717.0043.6895.3768.0536.0714.3374.9257.7956.8014.6035.594.054.0676.2095.0552.293.7755.2054.5841.7883.0365.7212.5472.5781.5834.7212.665
Percentage of IncomeTaxExpenseBenefit22.056.031.517.937.5-34.114.924.2-3.522.2-47.735.987.1316.122.719.432.434.240.829.538.860.6-10.621.839.254.035.263.1445.520.524.928.71254.215.539.718.83.622.0146.827.1-2.316.419.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.30.50.50.50.20.30.50.50.11.51.21.30.80.02.12.11.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany1.90.90.01.91.70.70.02.11.70.30.04.95.43.10.09.08.74.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity, us-gaap:PublicUtilitiesRegulatoryProceeding, us-gaap:PublicUtility

pnm:PublicServiceCompanyOfNewMexico, pnm:NewMexico2015RateCase, pnm:PaloVerdeNuclearGeneratingStationUnit2


Income
Period End2020-09-302020-06-302020-03-312019-05-16
Value0.00.0-45.7-45.7
Percentage of IncomeTaxExpenseBenefit0.00.02430.90.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0-14.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico pnm:NewMexico2015RateCase pnm:PaloVerdeNuclearGeneratingStationUnit20.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementBusinessSegments

pnm:PublicServiceCompanyOfNewMexico


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value7.8442.8345.73134.895-2.3596.0229.525-43.4811.973-16.989.0122.345-0.3482235157.7088.791199.1773.61-57.31827115.7751025134.083
Percentage of IncomeTaxExpenseBenefit94.5181.097.0110.2114.5125.584.4103.7101.5161.3153.569.945.5-44.441.183.471.771.566.770.858.750.4123.176.266.467.862.981.082.563.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.10.81.63.01.4-0.71.72.3-13.80.6-4.92.30.7-0.10.09.14.82.60.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1.8220.8771.8612.2021.6030.6421.0642.2281.4820.2725.2784.6344.4932.475128.2717.0043.6895.3768.0536.0714.3374.9257.7956.8014.6035.4427.4415.594.05
Percentage of IncomeTaxExpenseBenefit22.056.031.517.937.5-34.114.924.2-3.522.2-47.735.987.1316.122.719.432.434.240.829.538.860.6-10.621.839.254.033.224.035.263.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.30.50.50.50.20.30.50.50.11.51.21.30.80.02.12.11.20.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-1.367-2.145-1.681-3.462-2.223-0.1630.052-2.565-0.832-1.0220.639-0.747-1.682-1.34419-1.17-0.883-0.622-0.983-0.0930.386-0.795.8470.699-0.975-1.8610.626-1.528-2.803-1.713
Percentage of IncomeTaxExpenseBenefit-16.5-137.0-28.4-28.1-52.08.70.7-27.91.9-83.6-5.8-5.8-32.6-171.636.1-2.7-4.1-5.8-7.5-0.32.5-11.0-12.62.0-5.6-21.93.8-4.9-17.6-26.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-0.6-0.5-0.8-0.6-0.10.0-0.6-0.3-0.30.2-0.2-0.5-0.40.0-0.3-0.3-0.20.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.01.10.0-0.1310.0-0.161-2.533-0.2350.00.00.85-0.0080.00.00.75-0.125-1.1570.00.850.0-0.254-0.4050.219-1.45-0.0680.005-1.115-1.4190.1450.0-94.869-0.6030.00.03.8021.5-1.783-1.969-1.7750.0-0.526-35.384
Percentage of IncomeTaxesPaidNet0.0100.00.0100.00.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.20.0-0.00.0-0.0-0.8-0.10.00.00.3-0.00.00.00.2-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxesPaidNet dei:LegalEntity

pnm:TexasNewMexicoPowerCompany


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value151.10.0-0.131120.00.85-0.2353.4240.00.85-0.008200.00.750.0-0.190.00.850.0-0.255-0.4050.950.00.9-1.2043.7880.01.3-0.6040.00.03.8-1.952-1.7840.03.250.0-14.6450.0
Percentage of IncomeTaxesPaidNet0.0100.00.0100.00.0-0.0-33.6100.00.00.0100.0100.00.00.0100.0-0.016.40.0100.00.0100.4100.0433.8-0.0-80.784.82612.40.0-1.4100.20.00.099.9-130.1100.1-0.0-183.10.02784.2-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.40.20.0-0.03.80.00.3-0.11.00.00.3-0.00.00.00.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany0.01.00.0-0.20.00.01.0-0.30.00.01.0-0.00.00.00.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value24252527313029302931303033333132323131323331282728303030292929303031303030293231303030313131
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.57.57.16.09.19.48.57.39.510.08.87.69.810.90.08.29.910.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestExpense dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value13121314191717181818171819202020202120222221201919192019192019191919181820181818171818
Percentage of InterestExpense54.149.851.054.161.757.959.960.962.258.057.959.260.063.064.563.764.766.366.768.468.368.672.772.168.165.966.867.165.866.365.063.863.663.062.762.563.759.459.159.158.057.557.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.53.73.63.25.65.55.14.45.95.85.14.55.96.90.05.26.47.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico4.85.10.04.37.77.50.05.98.17.80.05.97.89.40.06.88.59.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value8.2778.4757.9137.9427.3617.1726.6927.0476.568.88.328.2417.8017.7297.4657.7047.517.4047.1857.3087.4737.3697.0456.8556.8566.9256.6556.5986.7326.6556.7597.2466.9477.0477.0697.0977.4067.2767.3057.2997.6747.6617.953
Percentage of InterestExpense34.332.730.929.123.723.622.923.222.027.827.427.023.423.423.724.023.223.422.822.522.523.425.024.923.722.922.222.323.121.922.123.222.723.123.424.022.723.423.923.824.824.525.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.22.42.21.72.12.21.91.72.12.82.42.12.32.50.02.02.32.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany8.58.90.07.07.88.20.06.67.611.00.08.89.39.60.08.49.49.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestExpense us-gaap:StatementBusinessSegments

pnm:PublicServiceCompanyOfNewMexico


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value131213141917171818181718192020202021202222212019191919202019
Percentage of InterestExpense54.149.851.054.161.757.959.960.962.258.057.959.260.063.064.563.764.766.366.768.468.368.672.772.168.165.965.066.766.867.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.53.73.63.25.65.55.14.45.95.85.14.55.96.90.05.26.47.10.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value8.2778.4757.9137.9427.3617.1726.6927.0476.568.88.328.2417.8017.7297.4657.7047.517.4047.1857.3087.4737.3697.0456.8556.8566.9257.2746.876.6556.598
Percentage of InterestExpense34.332.730.929.123.723.622.923.222.027.827.427.023.423.423.724.023.223.422.822.522.523.425.024.923.722.924.222.822.222.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.22.42.21.72.12.21.91.72.12.82.42.12.32.50.02.02.32.50.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2.8034.5164.6334.5744.5495.6335.0184.824.7054.4744.4794.1885.5324.4963.7193.9513.8913.2843.2942.9463.0582.5310.6280.8362.3763.3893.2173.1533.2943.125
Percentage of InterestExpense11.617.418.116.814.618.517.215.915.814.114.713.716.613.611.812.312.010.410.59.19.28.02.23.08.211.210.710.511.010.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.31.31.01.31.71.51.21.51.41.31.01.61.50.01.01.21.10.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value25232226302629244120526.2516.061516.636555.349
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.06.76.25.89.08.38.65.813.06.50.00.00.00.00.00.00.00.0

us-gaap:InterestPaidNet dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312011-12-312011-09-302010-12-312010-09-30
Value167.5681511249.397237.976259.07295.501295.642
Percentage of InterestPaidNet63.432.567.142.480.735.377.833.061.544.256.388.756.185.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.42.24.22.57.32.96.71.98.02.90.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico6.03.00.03.310.14.00.02.611.13.80.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312011-12-312011-09-302010-12-312010-09-30
Value6.7879.2295.7748.8754.0139.4523.8177.896123.829120.622120.669
Percentage of InterestPaidNet26.339.625.733.413.035.512.832.730.518.724.410.025.010.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.82.71.62.01.22.91.11.94.01.20.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany7.09.70.07.84.210.80.07.414.44.80.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.77812157-15.2631102-75.91418-55.077873814-54.28273372224542710-91.418613114185529127.6485427109.091572117111434.06716-108.1964822-8.449
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.426.816.8-4.79.224.5-24.15.9-16.021.911.34.90.018.811.57.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss dei:LegalEntity

pnm:NMRD


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.4690.2280.2731.3621.1690.0870.1520.1620.448-0.10.00.50.40.1
Percentage of NetIncomeLoss0.00.03.11.12.0-0.60.50.2-0.6-0.5-0.00.61.00.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.10.10.30.30.00.00.00.1-0.00.00.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:NMRD0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4118169945-15.9252780-86.81219-56.80677267.837-32.0216026161640164.274-96.2474921101345207.6742.6394726115.9435016171338-1.3733.7814.694398.9024.448
Percentage of NetIncomeLoss0.00.0191.481.779.4104.488.078.7114.4102.4103.188.669.852.359.082.571.772.964.975.359.340.5105.380.967.970.673.581.569.861.534.587.794.4108.965.488.078.5104.312.288.1-33.822.7-4.380.838.9-52.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.25.44.721.913.3-4.98.119.3-27.66.1-16.519.47.92.60.015.58.25.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico15.37.40.029.118.4-6.80.025.9-38.18.10.025.310.53.50.020.210.97.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value158.7351123167.0921125154.0981016159.4131.02414127.6049.85513107.4568.71513117.6949.115129.5346.8036.919108.3393.7266.6349.0848.0183.0115.1248.8684.1024.1632.9037.3294.1061.644
Percentage of NetIncomeLoss0.00.0129.819.628.1-46.535.724.4-20.121.9-19.418.440.262.8-1.920.032.533.339.725.538.870.7-9.522.437.553.748.022.232.754.690.518.530.135.173.015.737.317.64.620.3100.925.0-2.715.117.9-19.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.22.53.25.34.72.23.36.04.81.33.14.04.53.10.03.83.72.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany16.19.20.021.117.08.10.023.517.65.10.017.118.311.70.016.015.210.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

pnm:TexasNewMexicoPowerCompany, us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value158.7351123167.0921125154.0981016159.4131.02414127.6049.85513107.4569.5336.8036.92108.3393.7266.6349.0848.0183.011
Percentage of NetIncomeLoss0.00.0129.819.628.1-46.535.724.4-20.121.9-19.418.440.262.8-1.920.032.533.339.725.538.870.732.754.690.518.530.135.173.015.737.317.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.22.53.25.34.72.23.36.04.81.33.14.04.53.10.03.83.72.60.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.923.4942.7913.5533.943.7294.0533.863.4992.833.4063.924.1093.6773.5654.4563.5443.4523.4824.0063.7443.2874.0013.6783.853.382.9873.7013.9083.5313.6174.1273.5733.2043.3513.983.4553.2653.2834.1113.473.1833.2583.9093.2923.103
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.00.80.81.11.21.20.91.10.91.01.01.21.20.01.11.11.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3.923.4942.7913.5533.943.7294.0533.863.4992.833.4063.924.1093.6773.5654.4563.5443.4523.4824.0063.7443.2874.0013.6783.853.383.9083.5313.6174.1273.5733.2043.3513.983.4553.2653.2834.1113.473.1833.2583.9093.292
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.00.80.81.11.21.20.91.10.91.01.01.21.20.01.11.11.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico1.41.40.01.01.61.60.01.21.51.20.01.31.61.70.01.51.41.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

pnm:PublicServiceCompanyOfNewMexico, us-gaap:VariableInterestEntityPrimaryBeneficiary


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.923.4942.7913.5533.943.7294.0533.863.4992.83
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.00.80.81.11.21.20.91.10.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest us-gaap:StatementBusinessSegments

pnm:PublicServiceCompanyOfNewMexico


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value3.923.4942.7913.5533.943.7294.0533.863.4992.833.4063.924.1093.6773.5654.4563.5443.4523.4824.0063.7443.2874.0013.6783.853.382.9873.7013.9083.531
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.00.80.81.11.21.20.91.10.91.01.01.21.20.01.11.11.20.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value53178.77812157-15.2631102-75.91418-55.077873814-54.28273372224542710-91.418613114185529127.64854
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.65.12.426.816.8-4.79.224.5-24.15.9-16.021.911.34.90.018.811.57.70.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value4118169945-16.0572780-86.94419-56.93977267.705-32.1536026161540154.142-96.3849219.99207.5422.5074725115.8125016171338-1.5053.6494.563398.77
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic77.0105.4189.981.679.2105.287.678.6114.5101.7103.488.469.551.459.282.371.472.364.475.158.839.3105.480.767.569.769.460.532.887.40.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.25.34.621.813.3-5.08.119.3-27.66.0-16.619.37.82.50.015.58.25.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico15.27.40.029.118.4-6.80.025.9-38.18.10.025.310.43.50.020.210.97.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic us-gaap:StatementBusinessSegments

pnm:PublicServiceCompanyOfNewMexico


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value4118169945-16.0572780-86.94419-56.93977267.705-32.1536026161540154.142-96.3849219.991345207.542
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic77.0105.4189.981.679.2105.287.678.6114.5101.7103.488.469.551.459.282.371.472.364.475.158.839.3105.480.767.569.772.881.369.460.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.25.34.621.813.3-5.08.119.3-27.66.0-16.619.37.82.50.015.58.25.60.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value158.7351123167.0921125154.0981016159.4131.02414127.6049.85513107.4568.71513117.6949.116129.5346.803
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic29.149.7129.819.628.1-46.535.724.4-20.121.9-19.418.440.262.8-1.920.032.533.339.725.538.870.7-9.522.437.553.748.022.232.754.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.22.53.25.34.72.23.36.04.81.33.14.04.53.10.03.83.72.60.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-3.293-9.692-19.291-1.472-4.225-6.295-7.398-3.045-4.237-4.41-8.85-5.955-3.699-2.128-23.153-1.683-1.449-1.268-1.028-0.2870.651-1.052-3.753-1.89-1.573-3.344-3.946-1.921-0.607-1.877
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic-6.1-55.1-219.8-1.2-7.341.3-23.3-3.05.6-23.616.1-6.8-9.7-14.242.7-2.3-3.9-5.5-4.1-0.52.4-10.04.1-3.1-5.0-23.3-20.8-3.5-2.1-15.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.9-2.8-5.4-0.3-1.2-1.9-2.1-0.7-1.3-1.4-2.6-1.5-1.1-0.70.0-0.4-0.4-0.40.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Expenses

us-gaap:OperatingExpenses dei:LegalEntity

us-gaap:OperatingExpenses

pnm:NMRD


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2416000.02522000.02324000.02100000.01472000.01580000.0790000.0730000.0655000.0796000.0658000.0472000.0657000.0
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.70.60.50.40.50.20.20.20.30.20.10.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:NMRD0.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value744318147714760140-93.61536-17.4041277946221428555631086441-119.1381217249621167148401177750361186553631083252491057310
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.112.55.232.520.714.817.633.6-29.711.6-5.132.023.415.20.036.326.118.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value513315116493344108-115.97724-38.65410252281.778113593842804123-139.1649347314090493118955837209646424487101821803312
Percentage of OperatingIncomeLoss69.876.681.678.869.770.473.277.2123.966.2222.180.166.761.37.879.569.568.567.674.164.456.1116.877.165.263.965.277.669.964.245.580.974.973.454.882.171.778.470.181.232.134.843.376.545.3118.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.09.54.225.614.510.412.925.9-36.87.7-11.225.615.69.30.028.818.112.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico19.113.20.034.120.014.30.034.8-50.910.30.033.520.812.70.037.724.017.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value24171931231418322212232726181929261721282318192724172125211717221913152018111421131312191410
Percentage of OperatingIncomeLoss33.339.4103.021.532.630.029.823.2-24.134.3-133.921.733.840.286.720.730.932.133.626.236.144.7-16.522.834.136.233.722.229.835.442.518.925.325.743.217.729.021.923.319.941.726.324.318.619.697.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.74.95.37.06.84.45.27.87.24.06.87.07.96.10.07.58.06.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany25.417.80.028.124.416.40.030.526.015.80.029.632.022.90.032.032.823.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments

pnm:PublicServiceCompanyOfNewMexico


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value513315116493344108-115.97724-38.65310252281.779113593842804123-139.16493473140904931
Percentage of OperatingIncomeLoss69.876.681.678.869.770.473.277.2123.966.2222.180.166.761.37.879.569.568.567.674.164.456.1116.877.165.263.965.277.669.964.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.09.54.225.614.510.412.925.9-36.87.7-11.225.615.69.30.028.818.112.90.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value241719312314183222122327261819292617212823181927241721252117
Percentage of OperatingIncomeLoss33.339.4103.021.532.630.029.823.2-24.134.3-133.921.733.840.286.720.730.932.133.626.236.144.7-16.522.834.136.233.722.229.835.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.74.95.37.06.84.45.27.87.24.06.87.07.96.10.07.58.06.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-2.268-6.909-15.735-0.514-1.609-0.212-1.803-0.509-0.216-0.155-2.063-2.35-0.379-0.6921.279-0.242-0.345-0.336-0.744-0.345-0.313-0.3430.3210.1280.506-0.0170.6720.3110.2250.187
Percentage of OperatingIncomeLoss-3.1-16.0-84.7-0.3-2.3-0.4-3.0-0.40.2-0.411.9-1.8-0.5-1.55.6-0.2-0.4-0.6-1.2-0.3-0.5-0.8-0.30.10.7-0.01.10.30.30.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.6-2.0-4.4-0.1-0.5-0.1-0.5-0.1-0.1-0.0-0.6-0.6-0.1-0.20.0-0.1-0.1-0.10.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value2.989-3.159102.70510-4.05-0.4961.3013.0575.445-7.2042.2771.7631.6284.1473.0942.8633.993-18.8081.0630.092-3.366-0.132-7.475-4.5952.525-5.223-0.6441.4610.791145.668-1.9034.939-20.7721.77-2.3226.5516.057-2.222
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-0.93.00.63.2-1.3-0.10.31.01.7-2.10.60.50.50.00.80.91.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value2.781-3.623102.24710-2.531-0.6411.5344.3176.157-5.9012.1881.310.2823.3062.9892.7964.038-19.1880.6710.234-2.669-0.604-7.047-4.5952.525-5.477-0.6381.3820.855145.871-1.934.9-20.7991.833-2.2796.635.168-3.498
Percentage of OtherComprehensiveIncomeLossNetOfTax93.0114.795.783.197.762.5129.2117.9141.2113.181.996.174.317.379.796.697.7101.1102.063.1254.379.3457.694.3100.0100.0104.999.194.6108.199.4103.6101.499.2100.1103.698.1101.285.3157.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-1.02.80.53.1-0.8-0.20.41.42.0-1.70.50.40.10.00.80.91.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico1.0-1.40.00.74.3-1.10.00.51.92.60.00.70.50.10.01.01.11.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

pnm:PublicServiceCompanyOfNewMexico, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.5571.5576.1351.5481.5481.548-1.4751.3811.3811.381-6.3353.6860.9870.9870.987-10.4430.8390.8390.839-1.7740.9050.9050.905-8.4780.780.780.78110.960.960.96
Percentage of OtherComprehensiveIncomeLossNetOfTax52.1-49.357.457.214.3-38.2297.4106.145.225.487.988.931.934.524.755.578.9912.0-24.91343.9-12.1-19.735.8162.3-121.153.498.676.516.9-50.419.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.41.70.30.50.5-0.40.30.40.4-1.80.00.30.30.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.224-5.184.0990.6999.046-4.0790.8340.1532.9364.7760.434-0.382.0021.8093.051-8.745-0.168-0.605-3.5081.17-7.952-5.51.623.001-1.4180.6020.0753.3814.911-2.893.94
Percentage of OtherComprehensiveIncomeLossNetOfTax41.0164.038.325.883.4100.7-168.111.896.087.7-6.0-9.264.763.276.446.5-15.8-657.6104.2-886.4106.4119.764.2-57.5220.241.29.522.986.6151.979.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.3-1.51.10.22.6-1.30.20.00.91.50.10.00.50.61.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2.781-3.623102.24710-2.531-0.6411.5344.3176.157-5.9012.1881.310.2823.3062.9892.7964.038-19.1880.6710.234-2.6691.3820.855145.871-1.934.9-20.799
Percentage of OtherComprehensiveIncomeLossNetOfTax93.0114.795.783.197.762.5129.2117.9141.2113.181.996.174.317.379.796.697.7101.1102.063.1254.379.394.6108.199.4103.6101.499.2100.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-1.02.80.53.1-0.8-0.20.41.42.0-1.70.50.40.10.00.80.91.40.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico 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

pnm:PublicServiceCompanyOfNewMexico, us-gaap:Parent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2.781-3.623102.24710-2.531-0.6411.5344.3176.157-5.9012.1881.310.2823.3062.9892.7964.038-19.1880.6710.234-2.6691.3820.855145.871-1.934.9-20.799
Percentage of OtherComprehensiveIncomeLossNetOfTax93.0114.795.783.197.762.5129.2117.9141.2113.181.996.174.317.379.796.697.7101.1102.063.1254.379.394.6108.199.4103.6101.499.2100.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-1.02.80.53.1-0.8-0.20.41.42.0-1.70.50.40.10.00.80.91.40.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.2080.4640.4590.4580.252-1.5190.145-0.233-1.26-0.712
Percentage of OtherComprehensiveIncomeLossNetOfTax7.0-14.74.316.92.337.5-29.2-17.9-41.2-13.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.1-0.50.0-0.1-0.4-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2.989-3.159102.70510-4.05-0.4961.3013.0575.445-7.2042.2771.7631.6284.1473.0942.8633.993-18.8081.0630.092-3.366-0.132-7.475-4.5952.525-5.223-0.6441.4610.791145.668-1.9034.939-20.772
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-0.93.00.63.2-1.3-0.10.31.01.7-2.10.60.50.50.00.80.91.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2.989-3.159102.70510-4.05-0.4961.3013.0575.445-7.2042.2771.7631.6284.1473.0942.8633.993-18.8081.0630.092-3.366-0.132-7.475-4.5952.525-5.223-0.6441.4610.791145.668-1.9034.939-20.772
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-0.93.00.63.2-1.3-0.10.31.01.7-2.10.60.50.50.00.80.91.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Income

us-gaap:OtherIncome

us-gaap:OtherIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.6544.2526.2457.0224.392.3164.3324.2563.353.4155.5863.7354.7963.4694.8896.2753.454.9024.3834.8844.2654.2649.9896.1655.7174.9614.42.8953.181.5743.0553.2522.5551.7075.7552.4841.8622.6451.751.7550.8090.9951.5041.9631.17110
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.31.21.71.51.30.71.31.01.11.11.60.91.41.10.01.61.11.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIncome dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.5842.7083.7812.7521.7581.5092.5662.0951.922.6324.1712.1372.2922.3913.2573.7622.6653.8432.513.2392.9533.3875.6865.3694.9013.3922.4431.1132.3812.3961.5591.3113.7481.1761.371.8340.2991.1790.4410.3010.8050.8071.145
Percentage of OtherIncome55.563.760.539.240.065.259.249.257.377.174.757.247.868.966.660.077.278.457.366.369.279.456.987.185.768.476.870.777.973.761.076.865.147.373.669.317.167.254.530.353.541.197.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.81.10.60.50.50.70.50.60.81.20.50.70.80.01.00.81.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico1.01.10.00.80.70.60.00.70.81.10.00.70.91.10.01.31.11.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1.3231.3862.3013.5462.0290.671.6072.0121.1910.7171.2111.32.2230.7541.3732.2580.5410.8221.631.3761.0310.5931.1340.7740.7921.540.5860.420.6120.820.6090.3372.990.7710.4480.490.6850.4180.2880.3620.5060.0960.309
Percentage of OtherIncome28.432.636.850.546.228.937.147.335.621.021.734.846.421.728.136.015.716.837.228.224.213.911.412.613.931.018.426.720.025.223.819.752.031.024.118.539.123.835.636.433.64.926.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.40.60.80.60.20.50.50.40.20.40.30.70.20.00.60.20.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany1.41.50.03.12.10.80.01.91.40.90.01.42.60.90.02.50.71.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value155.489241725-30.583115.778.29217-14.8226.9741.5976.505131010129.475101411136.639.5077.0735.6393.8577.753.3330.9481.7364.4662.5246.7037.8791.7375.84168-3.2917.0567.853-193.437.315-2.11910
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.31.66.93.87.5-9.53.41.42.65.6-4.31.70.52.10.02.73.14.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherNonoperatingIncomeExpense dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value144.839231424-30.531114.2857.70918-14.1515.9870.2353.704128.1247.758106.3856.4899.99.465106.4419.3927.5817.5773.7966.6544.5096.2284.087.3948.3832.448.3173.69-1.8038.7099.2745.9596.4253.09
Percentage of OtherNonoperatingIncomeExpense90.988.294.385.893.599.895.674.393.0101.295.585.814.756.997.076.076.981.067.463.366.185.274.997.198.8107.297.8113.9701.9259.7139.5161.6110.3106.4140.5142.42.254.8123.4118.1-3.187.8-145.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.91.46.53.37.0-9.53.31.02.45.7-4.11.50.11.20.02.12.43.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico5.31.90.04.39.7-13.00.01.43.47.60.02.00.11.70.02.73.14.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1.0451.0622.0182.2861.9630.5611.0481.7660.7310.5850.9981.1510.8321.0851.1591.2280.4320.7321.0630.8550.6770.6080.9790.6720.7931.2910.5140.1890.510.7160.4860.2081.4950.3660.7740.1050.6940.3140.2590.3160.0540.0880.283
Percentage of OtherNonoperatingIncomeExpense6.519.38.213.37.6-1.88.930.68.83.3-6.716.552.116.78.811.54.35.611.28.34.55.57.310.18.318.36.65.753.841.210.98.222.34.644.61.80.4-9.53.74.0-0.01.2-13.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.60.50.60.20.30.40.20.20.30.30.20.40.00.30.10.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany1.11.10.02.02.10.60.01.70.80.70.01.21.01.30.01.30.51.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value57211112561-11.39935106-72.28321-51.539914218-50.58578412628583013-87.284643517225933161158311312612520115477.66919-104.8055226-5.214
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.76.13.327.617.9-3.510.525.5-23.06.9-15.022.912.56.20.020.012.68.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value45221910349-12.1963284-83.31321-53.4813011-28.4566530201944197.561-92.245532513164924116.2565129149.29354202116422.0976.9647.95343127.551
Percentage of ProfitLoss78.6104.5167.582.180.6107.089.079.4115.3101.4103.688.972.561.256.383.373.976.068.976.863.954.1105.781.871.175.676.682.573.169.554.988.394.6105.873.988.681.0102.914.688.927.334.9-7.682.146.4-144.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.36.45.522.614.5-3.89.320.2-26.57.0-15.520.49.13.80.016.69.36.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico16.78.80.030.120.0-5.20.027.2-36.59.30.026.612.15.20.021.712.49.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

pnm:PublicServiceCompanyOfNewMexico, us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value3.923.4942.7913.5533.943.7294.0533.863.4992.833.4063.924.1083.6773.5654.4563.5443.4523.4824.0063.7443.2873.9083.5313.6174.1273.5733.2043.3513.9793.4553.2653.2834.112
Percentage of ProfitLoss6.816.523.92.86.4-32.711.33.6-4.813.1-6.64.39.719.6-7.05.78.613.112.36.812.123.511.821.931.77.011.422.926.76.413.815.92.88.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.00.80.81.11.21.20.91.10.91.01.01.21.20.01.11.11.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value4118169945-15.9252780-86.81219-56.80777267.837-32.0216026161640164.274207.6742.6394726115.9445016171338
Percentage of ProfitLoss71.888.0143.679.374.2139.777.875.7120.188.4110.284.662.841.763.377.765.363.056.770.051.830.661.347.623.281.383.282.947.382.167.387.011.880.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.25.44.721.913.3-4.98.119.3-27.66.1-16.519.47.92.60.015.58.25.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value4118169945-15.9252780-86.81219-56.80777267.837-32.0216026161640164.274207.6742.6394726115.9445016171338
Percentage of ProfitLoss71.888.0143.679.374.2139.777.875.7120.188.4110.284.662.841.763.377.765.363.056.770.051.830.661.347.623.281.383.282.947.382.167.387.011.880.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.25.44.721.913.3-4.98.119.3-27.66.1-16.519.47.92.60.015.58.25.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementBusinessSegments

pnm:PublicServiceCompanyOfNewMexico


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value45221910349-12.1963284-83.31321-53.401813011-28.4566530201944197.561-92.24753251316492411
Percentage of ProfitLoss78.6104.5167.582.180.6107.089.079.4115.3101.4103.688.972.561.256.383.373.976.068.976.863.954.1105.781.871.175.676.682.573.169.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.36.45.522.614.5-3.89.320.2-26.57.0-15.520.49.13.80.016.69.36.80.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value158.7351123167.0921125154.0981016159.4131.02414127.6049.85513107.4568.71513117.6949.116129.5346.803
Percentage of ProfitLoss27.141.297.419.126.3-62.231.523.5-21.118.9-20.817.636.250.1-2.018.829.628.834.723.733.953.4-10.021.133.343.141.220.828.742.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.22.53.25.34.72.23.36.04.81.33.14.04.53.10.03.83.72.60.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-3.293-9.692-19.291-1.472-4.225-6.295-7.398-3.045-4.237-4.41-8.85-5.955-3.699-2.128-23.153-1.683-1.449-1.268-1.028-0.2870.651-1.052-3.753-1.89-1.573-3.344-3.946-1.921-0.607-1.877
Percentage of ProfitLoss-5.7-45.7-164.9-1.2-6.955.2-20.6-2.95.9-20.417.2-6.5-8.7-11.345.8-2.1-3.5-4.8-3.6-0.52.1-7.54.3-2.9-4.4-18.7-17.8-3.2-1.8-11.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.9-2.8-5.4-0.3-1.2-1.9-2.1-0.7-1.3-1.4-2.6-1.5-1.1-0.70.0-0.4-0.4-0.40.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value3.923.4942.7913.5533.943.7294.0533.863.4992.833.4063.924.1093.6773.5654.4563.5443.4523.4824.0063.7443.2874.0013.6783.8513.382.9873.7013.9083.5313.6174.1273.5733.2043.3513.9793.4553.2653.2834.1123.4693.183
Percentage of ProfitLoss6.816.523.92.86.4-32.711.33.6-4.813.1-6.64.39.719.6-7.05.78.613.112.36.812.123.5-4.65.710.818.913.56.211.821.931.77.011.422.926.76.413.815.92.88.645.216.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.00.80.81.11.21.20.91.10.91.01.01.21.20.01.11.11.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value53178.9112157-15.12831102-75.78218-54.945873815-54.1573372224542710-91.286613114195529127.785427109.223572117112434.19916
Percentage of ProfitLoss93.283.576.197.293.6132.788.796.4104.886.9106.695.790.380.4107.094.391.486.987.793.287.976.5104.694.389.281.186.593.888.278.168.393.088.677.173.493.686.284.197.291.454.884.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.65.12.526.816.8-4.79.324.6-24.16.0-16.021.911.35.00.018.811.57.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value53178.9112157-15.12831102-75.78218-54.945873815-54.1573372224542710-91.286613114195529127.785427109.223572117112434.19916
Percentage of ProfitLoss93.283.576.197.293.6132.788.796.4104.886.9106.695.790.380.4107.094.391.486.987.793.287.976.5104.694.389.281.186.593.888.278.168.393.088.677.173.493.686.284.197.291.454.884.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.65.12.526.816.8-4.79.324.6-24.16.0-16.021.911.35.00.018.811.57.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value368346359455343322344418314315343400338303304392326297
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value271251252341248235235311228235235306254222223300246222
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax73.672.570.375.172.373.068.374.572.474.768.676.575.273.473.376.675.474.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax73.672.570.375.172.373.068.374.572.474.768.676.575.273.473.376.675.474.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:TexasNewMexicoPowerCompany


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value97959611394879210686798194838081928075
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.427.526.824.927.727.027.025.527.625.323.823.524.826.626.723.424.625.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.427.526.824.927.727.027.025.527.625.323.823.524.826.626.723.424.625.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax dei:LegalEntity, us-gaap:MajorCustomers, us-gaap:ProductOrService

pnm:PublicServiceCompanyOfNewMexico, pnm:RetailElectricCommercialCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value10881871259386911219885
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.323.624.327.627.226.726.529.131.427.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.323.624.327.627.226.726.529.131.427.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico pnm:RetailElectricCommercialCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:PublicServiceCompanyOfNewMexico, pnm:RetailElectricEconomyEnergyServiceCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.753104.1093.273.2785.2537.085.7316.0246.922
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.83.11.10.71.01.62.11.41.92.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.83.11.10.71.01.62.11.41.92.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico pnm:RetailElectricEconomyEnergyServiceCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:PublicServiceCompanyOfNewMexico, pnm:RetailElectricIndustrialCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value22182525201918201514
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.25.57.15.65.96.05.45.04.94.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.25.57.15.65.96.05.45.04.94.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico pnm:RetailElectricIndustrialCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:PublicServiceCompanyOfNewMexico, pnm:RetailElectricPublicAuthorityCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.3374.5875.897.9824.9074.3474.8756.144.5964.711
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.31.61.81.41.31.41.51.51.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.31.61.81.41.31.41.51.51.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico pnm:RetailElectricPublicAuthorityCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:PublicServiceCompanyOfNewMexico, pnm:RetailElectricResidentialCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1081141121581091029613786107
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.333.131.334.831.831.828.032.927.434.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.333.131.334.831.831.828.032.927.434.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico pnm:RetailElectricResidentialCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:TexasNewMexicoPowerCompany, pnm:RetailElectricCommercialCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value29293031282830312827
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.08.58.56.88.28.98.87.48.98.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.08.58.56.88.28.98.87.48.98.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany pnm:RetailElectricCommercialCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:TexasNewMexicoPowerCompany, pnm:RetailElectricIndustrialCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.0467.2937.1356.8426.8576.5336.0795.4155.2955.616
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.92.12.01.52.02.01.81.31.71.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.92.12.01.52.02.01.81.31.71.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany pnm:RetailElectricIndustrialCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:TexasNewMexicoPowerCompany, pnm:RetailElectricPublicAuthorityCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.4651.4821.5421.4681.4191.4231.491.441.3911.374
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.40.40.30.40.40.40.30.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.40.40.30.40.40.40.30.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany pnm:RetailElectricPublicAuthorityCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:TexasNewMexicoPowerCompany, pnm:RetailElectricResidentialCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value34353553373135503330
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.410.110.011.710.99.910.412.110.79.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.410.110.011.710.99.910.412.110.79.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany pnm:RetailElectricResidentialCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

pnm:PublicServiceCompanyOfNewMexico, pnm:ElectricTransmissionService


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value16171417141413161413
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.65.13.93.84.14.43.93.84.64.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.65.13.93.84.14.43.93.84.64.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico pnm:ElectricTransmissionService100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:PublicServiceCompanyOfNewMexico, pnm:MiscellaneousRevenueFromContractsWithCustomers


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.5933.0323.2053.6973.0423.3683.5533.4652.4743.6413.4661.6864.2654.682
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.00.90.90.80.91.01.00.80.81.21.00.41.31.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.00.90.90.80.91.01.00.80.81.21.00.41.31.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico pnm:MiscellaneousRevenueFromContractsWithCustomers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:TexasNewMexicoPowerCompany, pnm:ElectricTransmissionService


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value23212019201817171714
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.46.15.64.45.95.65.24.25.64.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.46.15.64.45.95.65.24.25.64.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany pnm:ElectricTransmissionService100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:TexasNewMexicoPowerCompany, pnm:MiscellaneousRevenueFromContractsWithCustomers


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.9410.961.1410.9241.0020.6730.8980.8810.8870.9032.2432.3922.2082.14
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.30.20.30.20.30.20.30.30.70.60.70.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.30.20.30.20.30.20.30.30.70.60.70.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany pnm:MiscellaneousRevenueFromContractsWithCustomers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MajorCustomers, us-gaap:ProductOrService

pnm:RetailElectricCommercialCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value137111117156121115121152127112
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.332.132.734.435.435.635.336.540.335.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.332.132.734.435.435.635.336.540.335.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:RetailElectricCommercialCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:RetailElectricEconomyEnergyServiceCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.753104.1093.273.2785.2537.085.7316.0246.922
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.83.11.10.71.01.62.11.41.92.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.83.11.10.71.01.62.11.41.92.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:RetailElectricEconomyEnergyServiceCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:RetailElectricIndustrialCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value29263232272524262020
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.17.69.17.17.98.07.26.36.56.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.17.69.17.17.98.07.26.36.56.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:RetailElectricIndustrialCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:RetailElectricPublicAuthorityCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.8026.0697.4329.456.3265.776.3657.585.9876.085
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.82.12.11.81.81.81.81.91.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.82.12.11.81.81.81.81.91.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:RetailElectricPublicAuthorityCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:RetailElectricResidentialCustomers, us-gaap:Electricity


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value142149148211146134132188119137
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.743.241.246.542.741.738.545.038.143.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.743.241.246.542.741.738.545.038.143.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:RetailElectricResidentialCustomers us-gaap:Electricity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

pnm:ElectricTransmissionService


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value40383437343231333127
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.011.19.68.210.010.09.18.010.18.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.011.19.68.210.010.09.18.010.18.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:ElectricTransmissionService100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:MiscellaneousRevenueFromContractsWithCustomers


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.5343.9924.3464.6214.0444.0414.4514.3463.3614.5445.7094.0786.4736.822
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.21.21.01.21.31.31.01.11.41.71.01.92.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.21.21.01.21.31.31.01.11.41.71.01.92.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:MiscellaneousRevenueFromContractsWithCustomers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value426364359472357333344433330349343422352317332419362330
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax115.6105.2100.0103.8104.2103.3100.0103.6104.9110.8100.0105.7104.0104.8109.2107.0110.9111.1

us-gaap:Revenues dei:LegalEntity

pnm:NMRD


Revenuesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.8852.752.5973.4622.6411.6670.9420.8921.1030.70.61.01.10.4
Percentage of Revenues0.90.80.70.70.70.50.30.20.30.20.20.20.30.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.10.80.70.80.80.50.30.20.40.20.20.20.30.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:NMRD0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico


Revenuesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value323271266364260248255331238269259331264236249327276251
Percentage of Revenues75.974.474.277.172.974.474.176.472.177.075.678.475.174.375.077.976.276.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax87.878.374.280.176.076.874.179.175.685.375.682.878.177.981.883.484.584.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico119.3108.0105.6106.6105.1105.2108.5106.2104.5114.1110.1108.3103.8106.1111.6108.9112.1113.3

pnm:TexasNewMexicoPowerCompany


Revenuesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value102939210796858810292808391878183928678
Percentage of Revenues24.125.625.822.927.125.625.923.627.923.024.421.624.925.725.022.123.823.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.827.025.823.728.226.525.924.529.225.424.422.825.926.927.323.626.426.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:TexasNewMexicoPowerCompany105.598.096.595.3102.098.095.995.9105.9100.7102.797.1104.6101.1102.5100.7107.5104.6

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

pnm:PublicServiceCompanyOfNewMexico, us-gaap:VariableInterestEntityPrimaryBeneficiary


Revenuesdei:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value5.5795.1275.2785.4955.3535.4095.1774.952
Percentage of Revenues1.31.41.11.51.61.21.61.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.51.51.21.61.71.31.61.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pnm:PublicServiceCompanyOfNewMexico us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ProductOrService

us-gaap:Electricity


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value426364359472357333344433330349343422352317332419362330
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax115.6105.2100.0103.8104.2103.3100.0103.6104.9110.8100.0105.7104.0104.8109.2107.0110.9111.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:Electricity, pnm:PublicServiceCompanyOfNewMexico


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value323271266364260248255331238269259331264236249327276
Percentage of Revenues75.974.474.277.172.974.474.176.472.177.075.678.475.174.375.077.976.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax87.878.374.280.176.076.874.179.175.685.375.682.878.177.981.883.484.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Electricity, pnm:TexasNewMexicoPowerCompany


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1029392107968588102928083918781839286
Percentage of Revenues24.125.625.822.927.125.625.923.627.923.024.421.624.925.725.022.123.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.827.025.823.728.226.525.924.529.225.424.422.825.926.927.323.626.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Electricity pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value8120794379397742757473757298720070487250686568486750667666466697658464776471640363606273600960525927593958295709560455075500542854035370537252605252519752045372530152135225538054035359
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity

pnm:NMRD


Assetsdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1781771821821701521391138053
Percentage of Assets2.22.22.32.42.32.11.91.61.10.8
Percentage of Assets2.22.22.32.42.32.11.91.61.10.8
Percentage of Assets pnm:NMRD100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:PublicServiceCompanyOfNewMexico


Assetsdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value56565561558154495377526052425176510552025035504249944925492150234939487048674799477547194599445342904219422741924185415541634073406940314095393639203875
Percentage of Assets69.770.070.370.471.071.371.871.972.471.773.473.674.073.874.175.075.075.275.274.975.175.276.576.476.676.676.977.277.477.477.577.477.577.678.773.373.974.2
Percentage of Assets69.770.070.370.471.071.371.871.972.471.773.473.674.073.874.175.075.075.275.274.975.175.276.576.476.676.676.977.277.477.477.577.477.577.678.773.373.974.2
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:TexasNewMexicoPowerCompany


Assetsdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value22452163213220751985191318601832176818711665162815831526150014651437139613831366133913121297122912081173116211621155109810861060105410371037104110181010
Percentage of Assets27.627.226.926.826.225.925.525.425.125.824.323.823.522.922.621.921.821.621.421.321.120.921.621.121.621.321.121.421.420.520.220.220.120.019.919.419.219.3
Percentage of Assets27.627.226.926.826.225.925.525.425.125.824.323.823.522.922.621.921.821.621.421.321.120.921.621.121.621.321.121.421.420.520.220.220.120.019.919.419.219.3
Percentage of Assets pnm:TexasNewMexicoPowerCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

pnm:PublicServiceCompanyOfNewMexico, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value57585960606163
Percentage of Assets0.70.70.80.80.80.80.9
Percentage of Assets0.70.70.80.80.80.80.9
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

srt:ParentCompany


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value2790236322462248
Percentage of Assets35.132.432.733.8
Percentage of Assets35.132.432.733.8
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

pnm:PublicServiceCompanyOfNewMexico


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-31
Value5656556155815449537752605242517651055202503550424994492549215023493948704867479947754719459946374544446444734358429042194227416340953875
Percentage of Assets69.770.070.370.471.071.371.871.972.471.773.473.674.073.874.175.075.075.275.274.975.175.276.576.676.775.276.776.376.676.676.977.578.774.2
Percentage of Assets69.770.070.370.471.071.371.871.972.471.773.473.674.073.874.175.075.075.275.274.975.175.276.576.676.775.276.776.376.676.676.977.578.774.2
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:TexasNewMexicoPowerCompany


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-31
Value2245216321322075198519131860183217681871166516281583152615001465143713961383136613391312129712931268124312401216120811731162108610371010
Percentage of Assets27.627.226.926.826.225.925.525.425.125.824.323.823.522.922.621.921.821.621.421.321.120.921.621.421.420.921.321.321.621.321.120.219.919.3
Percentage of Assets27.627.226.926.826.225.925.525.425.125.824.323.823.522.922.621.921.821.621.421.321.120.921.621.421.420.921.321.321.621.321.120.219.919.3
Percentage of Assets pnm:TexasNewMexicoPowerCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CorporateAndOther


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value218218226217211201195192174176164177172224223208207211220237245242112122113231115134105114110122
Percentage of Assets2.72.82.82.82.82.72.72.72.52.42.42.62.63.43.43.13.23.33.43.73.93.91.92.01.93.92.02.41.92.12.02.3
Percentage of Assets2.72.82.82.82.82.72.72.72.52.42.42.62.63.43.43.13.23.33.43.73.93.91.92.01.93.92.02.41.92.12.02.3
Percentage of Assets us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5963584358195897580656765545545453625491510150004950491548734852477747114714463346104551427142054101414040223899381937533738367336753672353535603523353636853561347534913509
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets73.473.673.376.276.777.076.075.776.175.774.373.073.373.673.372.572.672.772.972.472.572.571.169.569.269.769.068.368.268.268.067.768.468.367.267.867.868.068.667.266.766.865.5

us-gaap:Liabilities dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Liabilitiesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3724367237053830385937983719367836913705356234283459341834213433341133713389331633573317319831052962291329282822279428172711274227022789269027082655
Percentage of Liabilities62.462.963.764.966.566.967.167.568.867.569.868.669.969.570.270.771.471.671.971.672.872.974.977.277.677.678.476.876.076.776.777.076.778.973.076.176.1
Percentage of Assets45.946.246.749.551.051.551.051.152.451.151.950.151.251.251.551.351.852.152.451.852.852.953.253.352.952.953.252.052.052.451.652.252.053.650.151.150.8
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico65.866.066.470.371.872.270.971.172.371.270.768.069.369.469.568.369.169.269.669.170.370.369.569.769.069.069.367.367.367.766.667.467.068.168.369.168.5

pnm:TexasNewMexicoPowerCompany


Liabilitiesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1343132813061308122611621105114310901204991979934883866867841805789769795771763704696663659680631622587583571574577564557
Percentage of Liabilities22.522.722.522.221.120.519.921.020.321.919.419.618.918.017.817.917.617.116.816.617.317.017.917.518.217.717.618.517.217.016.616.416.216.215.715.816.0
Percentage of Assets16.516.716.516.916.215.815.215.915.516.614.414.313.813.213.012.912.812.412.212.012.512.312.712.112.412.012.012.511.811.611.211.111.011.010.710.610.7
Percentage of Assets pnm:TexasNewMexicoPowerCompany59.861.461.363.061.860.859.462.461.664.359.560.159.057.957.759.258.657.757.156.359.458.858.957.357.656.656.758.557.557.355.555.355.155.355.455.455.2

us-gaap:Liabilities us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilitiesus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value741685558553
Percentage of Liabilities12.712.410.911.4
Percentage of Assets9.39.48.18.3
Percentage of Assets srt:ParentCompany26.629.024.824.6

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value8120794379397742757473757298720070487250686568486750667666466697658464776471640363606273600960525927593958295709560455075500542853705372526052525197520453725301521352255359
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value5656556155815449537752605242517651055202503550424994492549215023493948704867479947754719459944534290421942274192415541634073406940314095393639203875
Percentage of LiabilitiesAndStockholdersEquity69.770.070.370.471.071.371.871.972.471.773.473.674.073.874.175.075.075.275.274.975.175.276.576.476.676.676.977.277.477.577.477.577.678.773.373.974.2
Percentage of Assets69.770.070.370.471.071.371.871.972.471.773.473.674.073.874.175.075.075.275.274.975.175.276.576.476.676.676.977.277.477.577.477.577.678.773.373.974.2
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pnm:TexasNewMexicoPowerCompany


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2245216321322075198519131860183217681871166516281583152615001465143713961383136613391312129712291208117311621162109810861060105410371037104110181010
Percentage of LiabilitiesAndStockholdersEquity27.627.226.926.826.225.925.525.425.125.824.323.823.522.922.621.921.821.621.421.321.120.921.621.121.621.321.121.420.520.220.220.120.019.919.419.219.3
Percentage of Assets27.627.226.926.826.225.925.525.425.125.824.323.823.522.922.621.921.821.621.421.321.120.921.621.121.621.321.121.420.520.220.220.120.019.919.419.219.3
Percentage of Assets pnm:TexasNewMexicoPowerCompany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value2790236322462248
Percentage of LiabilitiesAndStockholdersEquity35.132.432.733.8
Percentage of Assets35.132.432.733.8
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2088203020491773169616271678167016121684168817711722168316951765172716861675168816671640165417631740171417211722169616651673166516041608163215991580157315911544154215361649
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets25.725.625.822.922.422.123.023.222.923.224.625.925.525.225.526.426.226.025.926.426.226.127.529.129.428.929.530.230.330.230.430.729.929.931.030.430.430.229.629.129.629.430.8

us-gaap:StockholdersEquity dei:LegalEntity

pnm:NMRD


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value177175181181168150130-112.167-80.004675352495333
Percentage of StockholdersEquity8.58.68.810.29.99.27.8-6.7-5.04.03.22.92.93.21.9
Percentage of Assets2.22.22.32.32.22.01.8-1.6-1.10.90.80.80.70.80.5
Percentage of Assets pnm:NMRD99.299.199.399.298.698.893.1-99.0-99.30.099.70.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1863181918041547144613901449142213391422139715371458143014221511144814181397140113351319131712621240121812101279127012541269123312361212115011151123
Percentage of StockholdersEquity89.389.688.187.385.385.486.385.183.184.482.886.884.684.983.985.683.884.183.483.080.180.479.673.473.173.272.376.979.278.077.777.178.277.072.372.273.1
Percentage of Assets23.022.922.720.019.118.819.919.719.019.620.422.421.621.421.422.622.021.921.621.921.021.021.921.722.122.122.023.623.723.324.123.523.823.321.421.021.5
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico32.932.732.328.426.926.427.627.526.227.327.730.529.229.028.930.129.329.128.729.228.028.028.728.428.928.928.630.530.630.131.230.330.729.629.228.529.0

pnm:TexasNewMexicoPowerCompany


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value902834825767759750754688678667674649648642634598595590593597543540533524512509502482467463472471466463464454453451423
Percentage of StockholdersEquity43.241.140.343.344.846.145.041.242.139.639.936.737.738.237.433.934.535.035.435.432.633.032.230.530.230.630.129.029.128.828.929.529.529.429.229.429.527.40.0
Percentage of Assets11.110.510.49.910.010.210.39.69.69.29.89.59.69.69.58.99.09.19.29.38.68.68.99.09.19.39.18.98.78.69.09.09.08.98.68.68.78.40.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany40.238.638.737.038.239.240.637.638.435.740.539.941.042.142.340.841.442.342.943.740.641.241.142.742.443.443.341.542.542.744.544.744.944.744.644.644.80.00.0

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

pnm:TexasNewMexicoPowerCompany, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value737685685614614614614534534534534504504504504454454454454454404404404404404404404390390390405413416416423423430443427
Percentage of StockholdersEquity35.333.733.434.636.237.736.632.033.131.731.628.529.329.929.725.726.326.927.126.924.224.624.423.523.824.324.123.424.324.324.825.926.326.526.627.428.026.90.0
Percentage of Assets9.18.68.67.98.18.38.47.47.67.47.87.47.57.67.66.86.97.07.07.16.46.46.76.97.27.37.37.27.37.37.77.98.08.07.98.08.28.30.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany, us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value16414914015214513614015414413313914514413813014314113613914313913612912010810598927773665749464132248.614-3.552
Percentage of StockholdersEquity7.97.36.98.68.68.48.49.29.07.98.38.28.48.27.78.18.28.18.38.58.48.37.87.06.46.35.95.54.84.64.13.63.23.02.62.11.60.50.0
Percentage of Assets2.01.91.82.01.91.81.92.12.01.82.02.12.12.12.02.12.12.12.12.22.22.22.12.11.91.91.81.71.41.41.31.11.00.90.80.60.50.20.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value2049167816881695
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets25.823.024.625.5
Percentage of Assets srt:ParentCompany73.471.075.275.4

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value391328377377326287294341299457302363331277294374353326378398408356385407410503432466446401401400393432442472470427462625567520543578
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.84.14.84.94.33.94.04.74.26.34.45.34.94.24.45.65.45.05.86.26.45.76.46.76.98.57.48.28.07.37.37.47.38.08.29.09.08.28.911.610.710.010.410.8

us-gaap:AssetsCurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value344292322302281245259284250255270311281228243331308281314310322291357368393345348380384378387398395361459387368384
Percentage of AssetsCurrent87.988.985.380.186.185.388.283.583.855.989.485.684.982.582.788.587.386.183.177.978.981.892.885.388.086.186.894.997.787.687.784.484.184.599.361.964.970.6
Percentage of Assets4.23.74.13.93.73.33.64.03.63.53.94.54.23.43.75.04.74.34.94.95.14.76.06.37.06.36.37.07.17.07.27.67.57.08.87.26.97.3
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico6.15.35.85.65.24.74.95.54.94.95.46.25.64.65.06.66.35.86.56.56.86.27.88.39.28.28.29.19.29.19.39.89.79.011.29.89.49.9

pnm:TexasNewMexicoPowerCompany


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value57466384565546595320241505041455146374452473539385142464645363541423734493929
Percentage of AssetsCurrent14.614.116.822.317.319.116.017.518.044.413.914.015.314.815.613.913.311.311.913.211.79.910.38.911.510.711.611.711.68.58.08.99.08.87.57.97.05.5
Percentage of Assets0.70.60.81.10.70.70.60.80.82.80.60.70.70.60.70.80.70.60.70.80.80.60.70.70.90.80.80.90.80.70.70.80.80.70.70.90.80.6
Percentage of Assets pnm:TexasNewMexicoPowerCompany2.52.13.04.12.82.92.53.33.010.82.53.13.22.73.13.53.32.73.23.83.62.73.13.14.23.74.04.03.93.33.33.94.03.63.34.73.93.0

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

pnm:PublicServiceCompanyOfNewMexico, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value3.6333.2823.9113.7013.3933.2975.094
Percentage of AssetsCurrent0.91.01.01.01.01.11.7
Percentage of Assets0.00.00.00.00.00.00.1
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:VariableInterestEntityPrimaryBeneficiary6.35.66.66.25.65.48.0

us-gaap:AssetsCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Assets
Period End2020-12-312019-12-312018-12-312017-12-31
Value778696100
Percentage of AssetsCurrent20.429.531.834.0
Percentage of Assets1.01.21.41.5
Percentage of Assets srt:ParentCompany2.83.74.34.4

Cash

us-gaap:Cash dei:LegalEntity

us-gaap:Cash

pnm:NMRD


Cashdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-312017-12-31
Value7.7815.0058.0466.5275.672127.1872.2432.7338.02.62.66.0
Percentage of Cash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.20.10.00.00.10.00.00.1
Percentage of Assets pnm:NMRD4.42.84.43.63.38.45.12.03.40.04.90.00.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2020-12-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value473.8332.1223.974432.1932.2834.5227.6814.943.8746266.404122282812272.53333345.1098.9855.3563.1846.97615251412152519281414017
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.10.00.10.60.00.00.10.10.10.10.80.40.12.10.50.50.20.50.00.60.60.10.20.10.10.10.30.50.30.20.30.50.40.00.30.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Cash
Period End2020-12-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-08-022011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value311.0010.0851.108390.0260.0940.3241.8932.0840.19143243.554.252259.356170.02122320.0213.9580.2211.1680.3125.034100.4850.055108.9915.7411.37346
Percentage of CashAndCashEquivalentsAtCarryingValue65.626.14.027.991.21.24.17.224.642.24.993.791.155.43.590.177.265.30.866.393.30.444.14.136.74.381.619.50.03.50.467.135.830.19.433.1
Percentage of Assets0.40.00.00.00.60.00.00.00.00.00.00.70.40.10.10.40.20.30.00.40.60.00.10.00.00.00.20.10.00.00.00.20.20.10.00.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.60.00.00.00.80.00.00.00.00.00.00.90.00.00.00.60.20.40.00.50.80.00.10.00.00.00.30.10.00.00.00.30.00.00.00.0

pnm:TexasNewMexicoPowerCompany


Cash
Period End2020-12-312019-12-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-10-272011-09-302011-08-022011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value141.01620.00.00.00.01.72.4220.0010.0010.6713.0180.0010.0010.0010.0010.0010.3520.0010.2530.0010.0010.1560.0010.0010.0010.0010.0014.70.0010.09.00.00.0010.4940.0010.0960.0720.1380.124
Percentage of CashAndCashEquivalentsAtCarryingValue30.926.10.00.00.00.00.042.85.60.00.014.839.30.00.00.00.00.00.30.02.10.00.00.50.00.00.00.00.067.40.00.034.90.00.03.80.00.40.40.90.1
Percentage of Assets0.20.02.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.20.00.00.00.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.70.18.70.00.00.00.00.10.20.00.00.00.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.50.00.00.90.00.00.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312014-12-31
Value0.0520.0790.0930.0210.0540.441
Percentage of CashAndCashEquivalentsAtCarryingValue0.12.14.40.51.21.6
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets srt:ParentCompany0.00.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value187.52147302.823163.833204.2261802.122344.8893.7833.974432.1933.2835.522
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.10.60.40.00.20.10.30.12.50.00.50.10.10.10.60.00.10.1

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value175.92313.1270.9463.7651.001172.239120.085312.8740.0191.108390.0261.0941.324
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents93.678.765.610.133.523.226.185.353.06.74.090.158.80.527.991.21.233.324.0
Percentage of Assets0.20.10.40.00.00.10.00.20.00.20.00.50.00.00.00.60.00.00.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.30.10.60.10.00.10.00.30.00.20.00.60.10.00.00.80.00.00.0

pnm:TexasNewMexicoPowerCompany


Cash
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value0.16814260.231101.00.00.01620.00.00.01.70.671
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents0.930.984.28.266.126.10.00.090.20.00.00.042.812.2
Percentage of Assets0.00.20.30.00.10.00.00.02.20.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.00.71.30.00.60.10.00.08.70.00.00.00.10.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents us-gaap:ConsolidatedEntities

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value0.0520.0790.0930.0210.054
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents0.12.14.40.51.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets srt:ParentCompany0.00.00.00.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value123102113135968385115839492108898490107868287927572981109489871059281901109489871198978871071039497106
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.31.41.71.31.11.21.61.21.31.41.61.31.31.41.61.31.31.31.41.21.21.61.81.61.51.51.81.61.51.62.01.81.71.62.31.71.51.72.02.01.81.92.0

us-gaap:AccountsReceivableNetCurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value95758810066586080556868796261677962616563525378676861708471696994676068805358
Percentage of AccountsReceivableNetCurrent77.073.877.874.569.270.270.469.566.372.673.973.270.373.674.374.272.074.574.768.669.473.879.377.774.075.277.776.375.377.780.278.775.977.478.274.551.260.5
Percentage of Assets1.21.01.11.30.90.80.81.10.80.91.01.20.90.91.01.20.90.91.01.00.80.81.31.21.21.11.31.61.31.31.31.81.31.21.31.51.01.1
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico1.71.41.61.91.21.11.21.61.11.31.41.61.31.31.41.61.31.31.31.31.11.11.71.51.61.51.72.01.71.71.72.31.71.51.72.01.41.5

pnm:TexasNewMexicoPowerCompany


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2826253429242535282524292622232724202228231820192320202623191725211719201612
Percentage of AccountsReceivableNetCurrent23.026.222.225.530.829.829.630.533.727.426.126.829.726.425.725.828.025.525.331.430.626.220.722.326.024.822.323.724.722.319.821.324.122.621.819.416.113.1
Percentage of Assets0.30.30.30.40.40.30.30.50.40.40.40.40.40.30.30.40.40.30.30.50.40.30.30.30.40.40.40.50.40.40.30.50.40.30.40.40.30.2
Percentage of Assets pnm:TexasNewMexicoPowerCompany1.31.21.21.71.51.31.41.91.61.41.51.81.71.51.51.91.71.51.62.11.71.41.61.62.01.71.72.32.01.81.62.42.01.71.82.01.61.3

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6162666769747777746871757469666867667372686967677166636360616760595859615957545351515250
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.80.80.90.91.01.11.11.10.91.01.11.11.01.01.01.01.01.11.11.11.11.11.11.21.11.11.11.11.11.21.11.11.11.11.21.11.11.01.01.01.01.00.9

us-gaap:InventoryNet dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value5556606163677272696367686763606362626468656560605858645757555657565451504849
Percentage of InventoryNet89.690.491.090.991.191.692.793.193.393.393.490.690.890.891.592.493.794.288.294.795.194.889.795.695.495.596.095.395.495.395.295.095.395.495.095.094.794.2
Percentage of Assets0.70.70.80.80.80.91.01.01.00.91.01.01.00.90.90.91.01.01.01.11.01.01.01.01.01.11.21.11.11.01.11.11.11.11.00.90.90.9
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico1.01.01.11.11.21.31.41.41.41.21.31.41.41.31.21.31.31.31.31.41.41.41.31.41.41.41.51.41.41.31.41.41.41.41.31.31.21.3

pnm:TexasNewMexicoPowerCompany


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value6.4485.9815.9456.1546.2246.2385.7045.374.974.5824.7377.0676.8556.3735.6435.1634.1973.8228.6263.8073.3673.5656.9092.7692.8042.7832.7032.8332.7742.7882.8533.0752.8082.6492.712.6632.7132.787
Percentage of InventoryNet10.49.69.09.18.98.47.36.96.76.76.69.49.29.28.57.66.35.811.85.34.95.210.34.44.64.54.04.74.64.74.85.04.74.65.05.05.35.3
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.10.10.00.10.10.10.10.10.10.10.10.00.10.1
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.30.30.30.30.30.30.30.30.30.20.30.40.40.40.40.40.30.30.60.30.30.30.50.20.20.20.20.20.20.30.30.30.30.30.30.30.30.3

us-gaap:InventoryNet dei:LegalEntity, us-gaap:PublicUtilitiesInventory

pnm:PublicServiceCompanyOfNewMexico, pnm:PublicUtilitiesInventoryMaterialsAndSupplies


Inventory
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4847444444424339373432
Percentage of InventoryNet73.060.761.766.460.962.568.159.063.063.361.6
Percentage of Assets0.60.60.60.70.70.70.70.70.70.70.6
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:PublicUtilitiesInventoryMaterialsAndSupplies0.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:PublicUtilitiesInventoryCoal


Inventory
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1224221619181724191717
Percentage of InventoryNet18.132.031.725.127.327.227.537.032.231.732.6
Percentage of Assets0.20.30.30.30.30.30.30.50.40.30.3
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:PublicUtilitiesInventoryCoal0.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany, pnm:PublicUtilitiesInventoryMaterialsAndSupplies


Inventory
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5.9455.7044.7375.6438.6266.9092.7692.7032.8532.712.787
Percentage of InventoryNet9.07.36.68.511.810.34.44.04.85.05.3
Percentage of Assets0.10.10.10.10.10.10.00.00.10.10.1
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:PublicUtilitiesInventoryMaterialsAndSupplies0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InventoryNet us-gaap:PublicUtilitiesInventory

pnm:PublicUtilitiesInventoryMaterialsAndSupplies


Inventory
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5453494953494642403735
Percentage of InventoryNet81.968.068.374.972.772.872.563.067.868.367.4
Percentage of Assets0.70.70.70.70.80.80.80.80.80.70.7
Percentage of Assets pnm:PublicUtilitiesInventoryMaterialsAndSupplies0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PublicUtilitiesInventoryCoal


Inventory
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1224221619181724191717
Percentage of InventoryNet18.132.031.725.127.327.227.537.032.231.732.6
Percentage of Assets0.20.30.30.30.30.30.30.50.40.30.3
Percentage of Assets us-gaap:PublicUtilitiesInventoryCoal0.00.00.00.00.00.00.00.00.00.00.0

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value60606450514244484953535351464756656673891039682767165585554443437424031384138334999919663
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.80.80.60.70.60.60.70.70.70.80.80.80.70.70.81.01.01.11.41.61.51.41.31.21.11.01.01.00.80.60.70.80.80.60.70.80.70.60.91.91.81.81.2

us-gaap:OtherAssetsCurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value5350513740353637394342464641394859606781969174534940303237372733363426414946
Percentage of OtherAssetsCurrent88.683.080.475.278.282.282.276.379.681.079.087.689.589.784.386.690.891.491.790.793.494.491.390.891.490.688.286.390.091.787.286.287.788.980.284.949.248.5
Percentage of Assets0.70.60.70.50.50.50.50.50.60.60.60.70.70.60.60.70.90.91.01.31.51.51.20.90.90.70.60.60.70.70.50.60.70.70.50.80.90.9
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.90.90.90.70.70.70.70.70.80.80.80.90.90.80.81.01.21.21.41.72.01.91.61.21.21.00.70.80.90.90.70.80.90.80.71.11.31.2

pnm:TexasNewMexicoPowerCompany


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2.4810.8971.7381.8822.1350.5641.281.8252.0451.3731.1141.491.7520.7961.1311.6091.8410.631.0312.1672.2050.9861.0530.9381.6620.7520.981.8162.0370.8411.1071.4261.7860.8460.6940.8961.2650.618
Percentage of OtherAssetsCurrent4.11.52.73.84.21.32.93.74.22.52.12.83.41.72.42.92.81.01.42.42.11.01.31.63.11.72.84.94.82.13.53.74.32.22.11.81.30.6
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.10.00.10.10.10.00.10.10.10.10.10.10.10.10.10.10.10.00.10.20.20.10.10.10.10.10.10.20.20.10.10.10.20.10.10.10.10.1

us-gaap:OtherAssetsCurrent dei:LegalEntity, us-gaap:JointlyOwnedUtilityPlant, us-gaap:PurchaseCommitmentExcludingLongtermCommitment

pnm:PublicServiceCompanyOfNewMexico, pnm:SanJuanGeneratingStation, pnm:CoalSupply


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2324262626262626262626262626313743485459654944413837262116121514149.910131314172830
Percentage of OtherAssetsCurrent38.940.840.752.551.361.259.153.953.448.849.050.856.755.556.557.265.166.360.357.667.359.759.058.659.663.847.240.035.835.642.235.334.931.427.831.434.743.736.328.232.2
Percentage of Assets0.30.30.30.30.30.40.40.40.40.40.40.40.40.40.50.60.70.80.80.91.00.80.70.70.70.60.50.40.30.20.30.30.30.20.20.20.30.30.30.50.6
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SanJuanGeneratingStation pnm:CoalSupply0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherAssetsCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value5.5452.8765.6351.937
Percentage of OtherAssetsCurrent8.66.510.54.1
Percentage of Assets0.10.00.10.0
Percentage of Assets srt:ParentCompany0.20.10.30.1

Assets Noncurrent

us-gaap:AssetsNoncurrent dei:LegalEntity

us-gaap:AssetsNoncurrent

pnm:NMRD


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1.5032.1331.91.9691.2141.5480.0
Percentage of AssetsNoncurrent100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets pnm:NMRD0.81.21.01.10.71.00.0

us-gaap:AssetsNoncurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Assets
Period End2020-12-312019-12-312018-12-312017-12-31
Value2713227721502148
Percentage of AssetsNoncurrent142813.30.00.00.0
Percentage of Assets34.231.231.332.3
Percentage of Assets srt:ParentCompany97.296.395.795.6

Construction In Progress Gross

us-gaap:ConstructionInProgressGross

us-gaap:ConstructionInProgressGross


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value293282218379309240161258202225194227220284245301252232208227211233204366261230190211146147132175160140125148140152132159139143137181
Percentage of ConstructionInProgressGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.63.62.84.94.13.32.23.62.93.12.83.33.34.33.74.53.83.63.23.63.33.73.46.14.43.93.33.72.62.72.43.23.02.62.32.82.72.92.53.02.62.82.63.4

us-gaap:ConstructionInProgressGross dei:LegalEntity

pnm:NMRD


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value16917017217316313713211177655050475030
Percentage of ConstructionInProgressGross57.760.178.945.852.957.482.443.038.328.926.122.221.817.812.6
Percentage of Assets2.12.12.22.22.21.91.81.51.10.90.70.70.70.80.5
Percentage of Assets pnm:NMRD94.896.094.695.396.090.594.998.096.60.095.20.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value170165148227175152108144107143134141114214204223201184158152156183172169114112107136128108102120120130116124121115
Percentage of ConstructionInProgressGross58.358.768.160.056.663.567.556.152.863.769.062.152.075.283.074.279.779.375.967.374.078.684.189.178.175.881.377.980.277.581.781.185.585.787.677.987.084.0
Percentage of Assets2.12.11.92.92.32.11.52.01.52.02.02.11.73.23.13.33.12.82.42.42.52.92.92.92.02.02.02.52.42.01.92.32.32.52.22.32.32.2
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico3.03.02.74.23.32.92.12.82.12.82.72.82.34.34.14.54.13.83.23.23.33.93.73.82.72.72.53.33.12.62.53.03.03.22.83.23.13.0

pnm:TexasNewMexicoPowerCompany


Construction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value111107611411247842103867551779461345340381645323216162733162724281920141612301412
Percentage of ConstructionInProgressGross37.937.828.137.140.232.726.440.242.833.426.534.143.121.714.017.815.916.78.220.015.313.98.18.718.822.612.715.515.420.115.813.610.311.19.818.810.19.0
Percentage of Assets1.41.30.81.81.61.10.61.41.21.00.71.11.40.90.50.80.60.60.30.70.50.50.30.30.50.60.30.50.50.50.40.40.30.30.20.60.30.2
Percentage of Assets pnm:TexasNewMexicoPowerCompany4.94.92.96.86.34.12.35.74.94.03.14.86.04.02.33.72.82.81.23.32.42.51.31.32.32.81.42.32.12.61.81.91.41.61.22.91.41.2

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:ConsolidatedEntities

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

srt:ParentCompany


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-31
Value15141313
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0
Percentage of Assets0.20.20.20.2
Percentage of Assets srt:ParentCompany0.60.60.60.6

Property Plant And Equipment Net

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

us-gaap:PropertyPlantAndEquipmentNet

pnm:PublicServiceCompanyOfNewMexico, us-gaap:VariableInterestEntityPrimaryBeneficiary


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value54555556575758
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.70.70.80.80.8
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:VariableInterestEntityPrimaryBeneficiary93.794.493.493.894.494.692.0

Investments In Affiliates Subsidiaries Associates And Joint Ventures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidatedEntities

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

srt:ParentCompany


Investments
Period End2020-12-312019-12-312018-12-312017-12-31
Value2631219720642056
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0
Percentage of Assets33.130.130.130.9
Percentage of Assets srt:ParentCompany94.393.091.991.4

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value278278278278278278278278278278278278278278278278278278278278278278278278278278278278278278278278278278278278278278278321321321321321321321
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.43.53.53.63.73.83.83.93.93.84.14.14.14.24.24.24.24.34.34.34.44.44.64.64.74.74.84.95.05.15.15.15.15.25.25.35.35.45.36.06.16.26.16.05.96.0

us-gaap:Goodwill dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Goodwilldei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-04-012014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value515151515151515151515151515151515151515151515151515151515151515151515151515151
Percentage of Goodwill18.618.618.618.618.618.618.618.618.618.618.618.618.618.618.618.618.618.618.618.618.618.618.60.018.518.618.618.618.618.618.618.618.618.618.618.616.116.116.1
Percentage of Assets0.60.70.70.70.70.70.70.70.70.70.80.80.80.80.80.80.80.80.80.80.80.80.90.00.90.90.90.91.01.01.01.01.01.01.01.01.01.01.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.90.90.90.91.01.01.01.01.01.01.01.01.01.01.01.01.01.11.11.11.11.11.10.01.21.21.21.21.21.21.21.21.31.31.31.31.31.31.3

pnm:TexasNewMexicoPowerCompany


Goodwilldei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-04-012014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value226226226226226226226226226226226226226226226226226226226226226226226226226226226226226226226226226226226226226226226
Percentage of Goodwill81.481.481.481.481.481.481.481.481.481.481.481.481.481.481.481.481.481.481.481.481.481.481.40.081.581.481.481.481.481.481.481.481.481.481.481.470.570.570.5
Percentage of Assets2.82.92.92.93.03.13.13.13.23.13.33.33.43.43.43.43.43.53.53.53.63.63.80.03.94.04.14.14.24.24.24.24.34.34.44.44.24.34.3
Percentage of Assets pnm:TexasNewMexicoPowerCompany10.110.510.610.911.411.812.212.412.812.113.613.914.314.815.115.515.816.216.416.616.917.317.50.018.418.819.319.519.519.620.620.921.421.521.821.821.822.322.4

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value9299105111118124131137143150157
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.21.31.41.61.71.81.92.02.10.0

us-gaap:OperatingLeaseRightOfUseAsset dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value859197103109114120126132137143
Percentage of OperatingLeaseRightOfUseAsset92.792.692.792.592.392.191.991.891.891.691.3
Percentage of Assets1.11.21.21.31.41.61.71.81.91.90.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico1.51.61.71.92.02.22.32.42.62.60.0

pnm:TexasNewMexicoPowerCompany


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value6.3666.9377.2067.8768.5359.2719.95410111212
Percentage of OperatingLeaseRightOfUseAsset6.97.06.97.17.27.47.67.77.98.18.2
Percentage of Assets0.10.10.10.10.10.10.10.10.20.20.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.30.30.30.40.40.50.50.60.60.60.0

Equity Securities Fv Ni

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

us-gaap:EquitySecuritiesFvNi

pnm:PublicServiceCompanyOfNewMexico, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, pnm:EquitySecuritiesOtherFunds


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value68575851504449638178707572
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.70.70.70.70.60.70.91.21.11.01.11.1
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring pnm:EquitySecuritiesOtherFunds0.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:CommonStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value97868571654964583836324035
Percentage of EquitySecuritiesFvNi143.3150.5145.1138.6130.5111.1129.692.347.145.846.653.348.8
Percentage of Assets1.21.11.10.90.90.70.90.80.50.50.50.60.5
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:PreferredStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3.323.4563.6083.7182.772.3652.2122.0142.2071.8541.6541.5870.849
Percentage of EquitySecuritiesFvNi4.96.06.17.25.55.34.43.22.72.42.32.11.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, pnm:EquitySecuritiesOtherFunds


Equity
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.0540.0410.0550.00.00.0620.0170.040.0110.00.00.0
Percentage of EquitySecuritiesFvNi0.10.10.10.00.00.10.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring pnm:EquitySecuritiesOtherFunds0.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:PreferredStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value6.1716.3796.3026.2225.7285.6096.8216.8636.5816.2845.6045.6525.489
Percentage of EquitySecuritiesFvNi9.011.110.712.111.412.513.710.88.18.07.97.57.6
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi dei:LegalEntity, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

pnm:PublicServiceCompanyOfNewMexico, us-gaap:FairValueMeasurementsRecurring, pnm:EquitySecuritiesOtherFunds


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value68575851504449638178707572
Percentage of EquitySecuritiesFvNi100.1100.1100.1100.0100.0100.0100.1100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.70.70.70.70.60.70.91.21.11.01.11.1
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:FairValueMeasurementsRecurring pnm:EquitySecuritiesOtherFunds0.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:FairValueMeasurementsRecurring, us-gaap:CommonStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value97868571654964583836324035
Percentage of EquitySecuritiesFvNi143.3150.5145.1138.6130.5111.1129.692.347.145.846.653.348.8
Percentage of Assets1.21.11.10.90.90.70.90.80.50.50.50.60.5
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:FairValueMeasurementsRecurring us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:FairValueMeasurementsRecurring, us-gaap:PreferredStock


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value9.4919.8359.919.948.4987.9749.0338.8778.7888.1387.2587.2396.338
Percentage of EquitySecuritiesFvNi13.917.116.919.316.917.818.113.910.810.310.39.68.8
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:FairValueMeasurementsRecurring us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.00.00.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value12811016984759510381807711272827812189786786767082100120881021101028862109767799817489103711118895111
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.42.11.11.01.31.41.11.11.11.61.11.21.21.81.31.21.01.31.21.11.31.72.01.51.71.91.81.61.12.01.41.41.81.51.41.72.01.32.11.71.82.1

us-gaap:AccountsPayableCurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value928912160526866595755755364567765604955595260728663448460567364577582485751
Percentage of AccountsPayableCurrent71.980.771.571.269.072.364.772.371.571.267.073.278.371.963.572.476.973.664.177.273.473.972.178.272.071.877.278.772.674.578.877.383.580.166.851.154.1
Percentage of Assets1.11.11.50.80.70.90.90.80.80.81.10.81.00.81.21.00.90.80.90.90.81.01.21.51.10.81.51.11.01.41.21.11.41.60.91.11.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico1.61.62.21.11.01.31.31.11.11.11.51.11.31.11.61.31.21.01.11.21.11.31.61.91.51.12.01.41.41.81.61.41.92.01.21.51.3

pnm:TexasNewMexicoPowerCompany


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value27163320161520161414231210152912108.634169.25810101614148.878127.114128.8488.055116.36212115.5075.537
Percentage of AccountsPayableCurrent21.215.319.923.722.016.720.020.617.418.321.217.513.019.824.614.012.912.819.312.114.612.415.912.916.914.311.49.315.68.99.914.97.111.916.44.95.8
Percentage of Assets0.30.20.40.30.20.20.30.20.20.20.30.20.20.20.40.20.20.10.30.10.20.20.30.20.30.20.20.10.20.20.20.20.10.20.20.10.1
Percentage of Assets pnm:TexasNewMexicoPowerCompany1.20.81.61.00.80.81.10.90.80.81.40.80.71.02.00.90.70.61.20.70.80.81.21.21.20.81.10.61.10.80.81.00.61.21.10.50.5

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value4.7524.8776.6069.173101010101010101011
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.20.10.20.20.2

us-gaap:ContractWithCustomerLiabilityCurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value4.7524.8776.6069.173101010101010101011
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.20.10.20.20.2
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.10.10.10.20.20.20.20.20.20.20.20.20.2

Dividends Payable Current

us-gaap:DividendsPayableCurrent

us-gaap:DividendsPayableCurrent


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value0.1322828240.1322424230.1322323210.1322121190.1321919170.1321717160.1321616140.1321414131311110.1321110100.1321111
Percentage of DividendsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.40.40.30.00.30.30.30.00.30.30.30.00.30.30.30.00.30.30.30.00.30.30.30.00.30.30.30.00.30.30.20.20.20.20.00.20.20.20.00.20.2

us-gaap:DividendsPayableCurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value0.1320.1320.1320.1320.132400.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.1320.132160.1320.1320.1320.1323.78139
Percentage of DividendsPayableCurrent100.00.50.50.5100.0165.60.50.6100.00.60.60.6100.00.60.60.7100.00.70.70.7100.00.70.70.8100.00.90.91.01.01.1144.6100.01.11.31.22864.4339.4
Percentage of Assets0.00.00.00.00.00.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.30.00.00.00.00.10.8
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.00.00.00.00.00.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.40.00.00.00.00.11.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6361511977125112651114967945666664512980962782835710766962805701702771641518701693704700486312492415494434392451429373712589504520563
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.819.012.316.216.715.113.313.19.59.27.514.314.311.712.610.611.614.912.411.011.112.310.78.611.811.712.112.38.75.79.07.79.28.17.58.68.37.213.311.19.710.010.5

us-gaap:LiabilitiesCurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value469562594401447396593611317195223353392416218191235451457275342433316415226156357186276242233294266290438455394
Percentage of LiabilitiesCurrent73.837.360.832.135.435.561.364.647.629.543.536.040.853.226.126.930.746.956.839.348.856.249.459.046.550.072.544.855.955.959.465.462.277.861.577.375.9
Percentage of Assets5.87.17.55.25.95.48.18.54.52.73.25.25.86.23.32.93.67.07.14.35.46.95.37.14.02.86.53.45.14.54.45.65.15.68.28.67.6
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico8.310.110.67.48.37.511.311.86.23.84.47.07.98.54.43.84.89.39.45.87.29.26.99.35.33.78.54.46.75.85.77.26.67.111.111.610.2

pnm:TexasNewMexicoPowerCompany


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1221058987881408913412724190264236776478118847270977212575707577159868049504344443634
Percentage of LiabilitiesCurrent19.27.09.27.07.012.69.314.219.136.317.727.024.69.97.711.115.48.89.110.013.89.419.610.714.524.315.838.317.518.612.511.210.211.96.36.36.6
Percentage of Assets1.51.31.11.11.21.91.21.91.83.31.33.93.51.21.01.21.81.31.11.11.51.22.11.31.31.41.42.91.61.50.91.00.80.90.80.70.7
Percentage of Assets pnm:TexasNewMexicoPowerCompany5.44.94.24.24.57.44.87.37.212.95.516.215.05.14.35.48.26.15.35.27.25.59.76.15.96.56.713.77.97.44.64.84.24.34.33.63.4

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

pnm:PublicServiceCompanyOfNewMexico, us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.7911.0570.6460.8750.6290.8210.623
Percentage of LiabilitiesCurrent0.10.10.10.10.00.10.1
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:VariableInterestEntityPrimaryBeneficiary1.41.81.11.51.01.31.0

us-gaap:LiabilitiesCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value288233207550
Percentage of LiabilitiesCurrent29.524.140.465.9
Percentage of Assets3.63.23.08.3
Percentage of Assets srt:ParentCompany10.39.99.224.5

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value25010105757797795394903851001720.04714713092561651744142731011061661241253003333333331580.075522.532.532.3872.3872.3872.3872.2522.2522.2522.2522.125
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.112.77.210.110.37.36.75.31.42.40.06.97.04.63.92.52.66.44.21.61.72.62.12.15.15.65.75.82.80.01.41.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebtCurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312012-12-312011-12-312010-12-31
Value2503453451891891003503501000.01992002000.0230.00.02312315656124124214390.0750.00.00.0
Percentage of LongTermDebtCurrent100.034.260.024.424.418.671.490.9100.00.042.442.464.60.00.00.055.984.856.153.175.3100.064.324.90.0100.00.00.00.0
Percentage of Assets3.14.44.42.52.51.44.84.91.40.02.93.03.00.00.00.03.63.60.90.92.02.13.70.70.01.40.00.00.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico4.46.26.23.53.51.96.76.82.00.04.04.04.10.00.00.04.84.81.21.22.62.74.80.90.01.80.00.00.0

us-gaap:LongTermDebtCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value229500.0249
Percentage of LongTermDebtCurrent40.010.20.097.3
Percentage of Assets2.90.70.03.8
Percentage of Assets srt:ParentCompany8.22.10.011.1

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value2628272626292928272625
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.30.30.40.40.40.40.40.40.0

us-gaap:OperatingLeaseLiabilityCurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value2425252424262524242221
Percentage of OperatingLeaseLiabilityCurrent91.691.991.590.589.990.089.288.487.986.985.7
Percentage of Assets0.30.30.30.30.30.40.40.30.30.30.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.40.50.50.40.40.50.50.50.50.40.0

pnm:TexasNewMexicoPowerCompany


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value2.132.1852.1932.3412.4282.6242.7532.8622.9133.0233.132
Percentage of OperatingLeaseLiabilityCurrent8.07.88.08.79.18.89.510.110.611.512.4
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.10.10.10.10.10.10.10.20.20.20.0

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value72566262564547464139545054435367666359494839595759507052704277626075739071111769781119181
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.70.80.80.70.60.60.60.60.50.80.70.80.70.81.01.01.00.90.80.80.61.00.91.00.81.20.91.30.81.41.11.11.41.41.71.42.11.41.81.62.33.4

us-gaap:OtherLiabilitiesCurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value45363334312625962526313034283132464733313327425252305040405453675076536465
Percentage of OtherLiabilitiesCurrent62.864.853.754.954.958.352.9206.661.767.058.260.264.364.958.748.570.575.356.663.468.670.571.074.274.771.365.464.667.771.872.674.469.769.270.765.954.9
Percentage of Assets0.60.50.40.40.40.40.31.30.40.40.50.40.50.40.50.50.70.70.50.50.50.40.70.90.90.50.90.70.81.01.01.31.01.51.01.21.3
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.80.70.60.60.60.50.51.90.50.50.60.60.70.60.60.60.91.00.70.70.70.60.91.21.20.71.21.01.01.31.31.71.21.91.41.61.7

pnm:TexasNewMexicoPowerCompany


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7.0526.0514.4865.4075.8236.9033.5653.9524.523.5562.8613.1023.6043.322.453.213.6283.32.1343.0123.4333.12.0442.2713.6029.388.9999.614108.8541012129.483.1334.0163.292
Percentage of OtherLiabilitiesCurrent9.710.87.18.610.315.07.58.510.99.05.26.16.67.64.54.85.55.23.66.07.17.93.43.25.122.211.715.517.111.714.213.717.48.54.14.12.7
Percentage of Assets0.10.10.10.10.10.10.00.10.10.00.00.00.10.00.00.00.10.10.00.00.10.00.00.00.10.20.20.20.20.20.20.20.20.20.10.10.1
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.30.30.20.30.30.40.20.20.30.20.20.20.20.20.20.20.30.20.20.20.30.20.20.20.30.80.80.80.90.81.01.21.20.90.30.40.3

us-gaap:OtherLiabilitiesCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value29252321
Percentage of OtherLiabilitiesCurrent47.053.742.639.5
Percentage of Assets0.40.30.30.3
Percentage of Assets srt:ParentCompany1.11.11.00.9

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent dei:LegalEntity

us-gaap:LiabilitiesNoncurrent

pnm:NMRD


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value387000.0383000.0380000.0351000.0368000.0362000.00
Percentage of LiabilitiesNoncurrent100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets pnm:NMRD0.20.20.20.20.20.20.0

Long Term Debt

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

us-gaap:LongTermDebt

pnm:Pnmr, pnm:PNM2019TermLoan


Long
Period End2021-03-312020-12-312019-12-312018-12-31
Value1501501500.0
Percentage of LongTermDebt100.0100.0100.00.0
Percentage of Assets1.91.92.10.0
Percentage of Assets pnm:Pnmr pnm:PNM2019TermLoan0.00.00.00.0

pnm:Pnmr, pnm:PNMR2018SUNS3.25percentdueMarch2021


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value3003003000.0
Percentage of LongTermDebt200.0200.00.00.0
Percentage of Assets3.84.14.40.0
Percentage of Assets pnm:Pnmr pnm:PNMR2018SUNS3.25percentdueMarch20210.00.00.00.0

pnm:Pnmr, pnm:PNMR2020DelayedDrawTermLoan


Long
Period End2020-12-31
Value80
Percentage of LongTermDebt53.3
Percentage of Assets1.0
Percentage of Assets pnm:Pnmr pnm:PNMR2020DelayedDrawTermLoan0.0

pnm:Pnmr, pnm:PNMRDevelopmentTermLoan


Long
Period End2021-03-312020-12-312019-12-312018-12-312017-12-31
Value656590900.0
Percentage of LongTermDebt43.343.360.00.00.0
Percentage of Assets0.80.81.21.30.0
Percentage of Assets pnm:Pnmr pnm:PNMRDevelopmentTermLoan0.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:DebtInstrument

pnm:PNMR2020DelayedDrawTermLoan


Long
Period End2021-03-31
Value300
Percentage of LongTermDebt200.0
Percentage of Assets3.8
Percentage of Assets pnm:PNMR2020DelayedDrawTermLoan0.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3186220527192509243724682517246726722771267021422122227121802282219919692119220722172108196619801731179116421542171718451670169616691669167216711671167115641563156315631565
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.227.834.332.432.233.534.534.337.938.238.931.331.434.032.834.133.430.432.834.534.933.632.732.729.230.228.227.030.633.530.431.231.131.131.831.832.232.129.129.530.029.929.2

us-gaap:LongTermDebtNoncurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1482135113511656165616481397135716071706165614561455145816571657163114001399157415741456145512761351139012151290121512151215121512151215105510551055
Percentage of LongTermDebtNoncurrent46.561.349.766.068.066.855.555.060.161.662.068.068.664.276.072.674.271.166.071.471.069.174.077.778.775.472.876.172.872.872.772.772.772.767.567.567.5
Percentage of Assets18.317.017.021.421.922.319.218.922.823.524.121.321.621.824.924.724.821.621.624.624.823.224.221.924.125.322.123.822.622.623.123.123.423.419.719.920.2
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico26.224.324.230.430.831.326.726.231.532.832.928.929.129.633.733.033.028.728.832.833.030.931.728.731.533.028.830.829.329.229.829.930.129.726.826.927.2

pnm:TexasNewMexicoPowerCompany


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value853853853853780670670670626626575388368480480480421420420420420420361365365335336286311311311311311310310310310
Percentage of LongTermDebtNoncurrent26.838.731.434.032.027.226.627.223.422.621.518.117.421.222.021.119.121.419.919.119.020.018.422.321.318.220.116.918.718.718.618.618.618.619.919.919.8
Percentage of Assets10.510.710.811.010.39.19.29.38.98.68.45.75.57.27.27.26.46.56.56.66.66.76.06.36.56.16.15.35.85.85.95.96.06.05.85.95.9
Percentage of Assets pnm:TexasNewMexicoPowerCompany38.039.540.041.139.335.136.136.635.433.534.623.823.331.532.032.829.330.230.430.831.432.127.929.730.328.628.924.628.428.729.429.530.030.029.830.530.7

us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value4494493480.0
Percentage of LongTermDebtNoncurrent16.517.813.00.0
Percentage of Assets5.76.25.10.0
Percentage of Assets srt:ParentCompany16.119.015.50.0

Unsecured Long Term Debt

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

us-gaap:UnsecuredLongTermDebt

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesDue2021At5Point35Percent, us-gaap:UnsecuredDebt


Unsecured
Period End2021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1601601601601601601601601601601600.0
Percentage of UnsecuredLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets2.02.02.22.32.42.52.72.72.93.03.10.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesDue2021At5Point35Percent us-gaap:UnsecuredDebt0.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesDue2023at3point15percent, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value5555550.0
Percentage of UnsecuredLongTermDebt34.434.434.40.0
Percentage of Assets0.70.80.80.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesDue2023at3point15percent us-gaap:UnsecuredDebt0.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesDue2025at3point45percent, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value1041041040.0
Percentage of UnsecuredLongTermDebt65.065.065.00.0
Percentage of Assets1.31.41.50.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesDue2025at3point45percent us-gaap:UnsecuredDebt0.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesDue2030At3Point21Percent, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-31
Value150
Percentage of UnsecuredLongTermDebt93.8
Percentage of Assets1.9
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesDue2030At3Point21Percent us-gaap:UnsecuredDebt0.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesDue2039At3Point57Percent, us-gaap:UnsecuredDebt


Unsecured
Period End2020-12-31
Value50
Percentage of UnsecuredLongTermDebt31.2
Percentage of Assets0.6
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesDue2039At3Point57Percent us-gaap:UnsecuredDebt0.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesPCRBDue2022At1Point05Percent, pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds


Unsecured
Period End2020-12-31
Value36
Percentage of UnsecuredLongTermDebt22.5
Percentage of Assets0.5
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesPCRBDue2022At1Point05Percent pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds0.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesPCRBDue2022At1Point20Percent, pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds


Unsecured
Period End2020-12-31
Value11
Percentage of UnsecuredLongTermDebt7.2
Percentage of Assets0.1
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesPCRBDue2022At1Point20Percent pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds0.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesPCRBDue2023At1Point10Percent, pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds


Unsecured
Period End2020-12-31
Value130
Percentage of UnsecuredLongTermDebt81.2
Percentage of Assets1.6
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesPCRBDue2023At1Point10Percent pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds0.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesPCRBDue2024At1Point15Percent, pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds


Unsecured
Period End2020-12-31
Value125
Percentage of UnsecuredLongTermDebt78.1
Percentage of Assets1.6
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesPCRBDue2024At1Point15Percent pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds0.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesPCRBFloatingRateWeeklyMode, pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds


Unsecured
Period End2020-12-31
Value100
Percentage of UnsecuredLongTermDebt62.7
Percentage of Assets1.3
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesPCRBFloatingRateWeeklyMode pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds0.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesPCRBRepriceDateOfJune2022, pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds


Unsecured
Period End2021-06-30
Value104
Percentage of UnsecuredLongTermDebt0.0
Percentage of Assets1.3
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesPCRBRepriceDateOfJune2022 pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds0.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesPCRBRepriceDateOfOctober2021, pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds


Unsecured
Period End2021-06-30
Value146
Percentage of UnsecuredLongTermDebt0.0
Percentage of Assets1.8
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesPCRBRepriceDateOfOctober2021 pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds0.0

pnm:PublicServiceCompanyOfNewMexico, pnm:SeniorUnsecuredNotesPcrbDue2033At1Point875Percent, pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds


Unsecured
Period End2021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1461461461461461460.0
Percentage of UnsecuredLongTermDebt91.291.291.291.291.291.20.0
Percentage of Assets1.81.82.02.12.22.30.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico pnm:SeniorUnsecuredNotesPcrbDue2033At1Point875Percent pnm:SeniorUnsecuredNotesPollutionControlRevenueBonds0.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds273PercentDue2030, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-31
Value85
Percentage of UnsecuredLongTermDebt53.1
Percentage of Assets1.1
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds273PercentDue2030 pnm:FirstMortgageBonds0.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds293PercentDue2035, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-31
Value25
Percentage of UnsecuredLongTermDebt15.6
Percentage of Assets0.3
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds293PercentDue2035 pnm:FirstMortgageBonds0.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds3.22PercentDue2027, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value606060600.0
Percentage of UnsecuredLongTermDebt37.537.537.537.50.0
Percentage of Assets0.80.80.90.90.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds3.22PercentDue2027 pnm:FirstMortgageBonds0.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds3.60PercentDue2029, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-312019-12-312018-12-31
Value80800.0
Percentage of UnsecuredLongTermDebt50.050.00.0
Percentage of Assets1.01.10.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds3.60PercentDue2029 pnm:FirstMortgageBonds0.00.00.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds3.79PercentDue2034, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-312019-12-312018-12-31
Value75750.0
Percentage of UnsecuredLongTermDebt46.946.90.0
Percentage of Assets0.91.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds3.79PercentDue2034 pnm:FirstMortgageBonds0.00.00.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds3.85PercentDue2028, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-31
Value6060600.0
Percentage of UnsecuredLongTermDebt37.537.537.50.0
Percentage of Assets0.80.80.90.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds3.85PercentDue2028 pnm:FirstMortgageBonds0.00.00.00.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds3.92PercentDue2039, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-312019-12-312018-12-31
Value75750.0
Percentage of UnsecuredLongTermDebt46.946.90.0
Percentage of Assets0.91.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds3.92PercentDue2039 pnm:FirstMortgageBonds0.00.00.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds336PercentDueApril2050, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-31
Value25
Percentage of UnsecuredLongTermDebt15.6
Percentage of Assets0.3
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds336PercentDueApril2050 pnm:FirstMortgageBonds0.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds336PercentDueJuly2050, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-31
Value50
Percentage of UnsecuredLongTermDebt31.2
Percentage of Assets0.6
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds336PercentDueJuly2050 pnm:FirstMortgageBonds0.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds3Point53Percentdue2026Series2016A, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value60606060600.0
Percentage of UnsecuredLongTermDebt37.537.537.537.537.50.0
Percentage of Assets0.80.80.90.90.90.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds3Point53Percentdue2026Series2016A pnm:FirstMortgageBonds0.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds4.06PercentDue2044, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-312019-12-312018-12-31
Value75750.0
Percentage of UnsecuredLongTermDebt46.946.90.0
Percentage of Assets0.91.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds4.06PercentDue2044 pnm:FirstMortgageBonds0.00.00.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBonds6Point95PercentDue2043Series2013A, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value93939393939393930.0
Percentage of UnsecuredLongTermDebt58.258.258.258.258.258.258.258.20.0
Percentage of Assets1.21.31.41.41.41.61.61.70.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBonds6Point95PercentDue2043Series2013A pnm:FirstMortgageBonds0.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany, pnm:FirstMortgageBondsDue2024Series2014Aat4point03percentMember, pnm:FirstMortgageBonds


Unsecured
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value808080808080800.0
Percentage of UnsecuredLongTermDebt50.050.050.050.050.050.050.00.0
Percentage of Assets1.01.11.21.21.21.31.40.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany pnm:FirstMortgageBondsDue2024Series2014Aat4point03percentMember pnm:FirstMortgageBonds0.00.00.00.00.00.00.00.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value718702694674647630626600
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.98.88.78.78.68.68.68.7

us-gaap:DeferredIncomeTaxLiabilitiesNet dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value600586579564540525521502
Percentage of DeferredIncomeTaxLiabilitiesNet83.583.583.483.683.483.383.483.7
Percentage of Assets7.47.47.37.37.17.17.27.3
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico10.610.510.410.410.110.010.010.0

pnm:TexasNewMexicoPowerCompany


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value147145145138139139140136
Percentage of DeferredIncomeTaxLiabilitiesNet20.520.720.920.621.622.122.422.7
Percentage of Assets1.81.81.81.81.81.91.92.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany6.66.76.86.77.07.37.58.2

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value50545886879195889296100808488941161191211256366687366707511069727580147157224129133136224227250261270281
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.70.71.11.21.21.31.21.31.31.51.21.31.31.41.71.81.91.91.01.01.11.21.11.21.31.91.21.31.41.52.72.94.22.52.52.64.34.24.75.05.25.3

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value49525679808487818589927478818610610911111457596266102697276134143208125128131213213235253
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent97.897.396.992.892.592.592.492.792.792.792.692.092.192.091.691.491.491.490.989.990.290.590.792.995.795.995.790.990.992.996.996.596.495.193.994.094.0
Percentage of Assets0.60.70.71.01.11.11.21.11.21.21.41.11.21.21.31.61.71.71.80.90.91.01.11.81.21.31.42.52.73.92.42.52.54.14.04.44.9
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.90.91.01.51.51.61.71.61.71.71.81.51.61.71.72.12.22.32.41.21.31.31.42.31.61.71.83.23.45.03.13.23.35.25.46.06.6

pnm:TexasNewMexicoPowerCompany


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1.0921.4481.8286.2236.5336.8537.1996.4646.7527.0367.3946.5036.757.0847.879101010116.386.5266.5096.8127.8883.1023.0913.4351314154.0184.6334.87711131416
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent2.22.73.17.27.57.57.67.37.37.37.48.07.98.08.48.68.68.69.110.19.89.59.37.14.34.14.39.19.17.13.13.53.64.96.16.06.0
Percentage of Assets0.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.20.20.20.20.10.10.10.10.10.10.10.10.20.30.30.10.10.10.20.30.30.3
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.00.10.10.30.30.40.40.40.40.40.40.40.40.50.50.70.70.70.80.50.50.50.50.60.30.30.31.21.31.50.40.40.51.11.31.51.6

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent dei:LegalEntity, us-gaap:RetirementPlanType

pnm:PublicServiceCompanyOfNewMexico, us-gaap:OtherPensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1213131414
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent22.214.313.115.511.7
Percentage of Assets0.20.20.20.20.2
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:OtherPensionPlansDefinedBenefit0.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany, us-gaap:OtherPensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value0.5870.6010.5610.6780.694
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent1.00.60.60.70.6
Percentage of Assets0.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany us-gaap:OtherPensionPlansDefinedBenefit0.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value57575959596063646262646565656667686868707170717273727375767677787880818181828384848589
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.70.80.80.80.90.90.90.90.91.01.01.01.01.01.01.11.11.11.11.11.21.21.21.21.31.31.41.41.41.41.51.51.51.61.61.61.61.61.61.61.7

us-gaap:MinorityInterest dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value57575959596063646262646565656667686868707170717376767778788081818182838485
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.70.80.80.80.90.90.90.90.91.01.01.01.01.01.01.11.11.11.11.11.21.31.41.41.41.41.51.51.51.61.61.61.61.61.6
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico1.01.01.11.11.11.11.21.21.21.21.31.31.31.31.31.31.41.41.41.51.51.51.61.71.81.81.81.91.91.92.02.02.02.02.12.22.2

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

pnm:PublicServiceCompanyOfNewMexico, us-gaap:VariableInterestEntityPrimaryBeneficiary


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value57575959596063
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.70.80.80.80.9
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:VariableInterestEntityPrimaryBeneficiary98.698.298.998.599.098.799.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent us-gaap:ConsolidatedEntities

us-gaap:OtherLiabilitiesNoncurrent

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.8032.8032.8033.151
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany0.10.10.10.1

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value667181819195105106116124135
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.91.01.11.21.31.41.51.71.70.0

us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value6166757685889798107115124
Percentage of OperatingLeaseLiabilityNoncurrent93.593.293.793.193.192.892.992.392.592.492.4
Percentage of Assets0.80.81.01.01.11.21.31.41.51.60.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico1.11.21.41.41.61.71.91.92.12.20.0

pnm:TexasNewMexicoPowerCompany


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value3.9984.5154.7795.3115.8976.4597.0397.6558.4039.0889.787
Percentage of OperatingLeaseLiabilityNoncurrent6.06.35.96.56.56.86.77.27.27.37.2
Percentage of Assets0.00.10.10.10.10.10.10.10.10.10.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.20.20.20.30.30.30.40.40.50.50.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value19192828282929303030
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.40.40.40.40.40.40.40.4

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value17172626262626272727
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo91.591.792.392.392.290.790.788.188.588.5
Percentage of Assets0.20.20.30.30.30.40.40.40.40.4
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.30.30.50.50.50.50.50.50.50.5

pnm:TexasNewMexicoPowerCompany


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.4741.5481.9871.9751.9962.4482.4483.0782.9932.993
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo7.68.17.06.97.08.48.410.09.89.8
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.10.10.10.10.10.10.10.20.20.2

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8.8538.8971919192828292929
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.20.30.30.40.40.40.40.4

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.9087.9151717172626262626
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree89.389.091.491.491.392.292.290.790.990.9
Percentage of Assets0.10.10.20.20.20.40.40.40.40.4
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.10.10.30.30.30.50.50.50.50.5

pnm:TexasNewMexicoPowerCompany


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.8960.9451.4811.4811.5081.9961.9962.4482.3982.398
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree10.110.67.67.67.87.07.08.48.28.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.00.00.10.10.10.10.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.697.7218.8418.8338.8331919282828
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.30.30.40.40.4

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.9466.9197.8997.9087.9081717262626
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour90.389.689.389.589.591.391.392.292.992.9
Percentage of Assets0.10.10.10.10.10.20.20.40.40.4
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.10.10.10.10.10.30.30.50.50.5

pnm:TexasNewMexicoPowerCompany


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.7060.7630.8950.8770.8771.5081.5081.9961.8461.846
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour9.29.910.19.99.97.87.87.06.56.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.10.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.6738.8338.833191818
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.30.30.3

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Lessee
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.9467.9087.908171717
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive90.589.589.591.392.592.5
Percentage of Assets0.10.10.10.20.20.2
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.10.20.20.30.30.3

pnm:TexasNewMexicoPowerCompany


Lessee
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.690.8770.8771.5081.2811.281
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive9.09.99.97.86.86.8
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.00.00.00.10.10.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-31
Value273535444343
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.50.50.60.60.6

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Lessee
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-31
Value273434424242
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive98.997.197.195.697.397.3
Percentage of Assets0.30.50.50.60.60.6
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.50.70.70.80.80.8

pnm:TexasNewMexicoPowerCompany


Lessee
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0750.7650.7651.6421.1511.151
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive0.32.22.23.72.62.6
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.00.00.00.10.10.1

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value9299108108118125134134143151
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.31.41.41.61.71.81.92.02.1

us-gaap:OperatingLeaseLiability dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8692101100109115123123131138
Percentage of OperatingLeaseLiability93.092.893.192.492.492.192.191.591.691.4
Percentage of Assets1.11.21.31.31.41.61.71.71.91.9
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico1.51.71.81.82.02.22.42.42.62.7

pnm:TexasNewMexicoPowerCompany


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.1286.76.9727.6528.3269.0839.792101112
Percentage of OperatingLeaseLiability6.66.76.47.07.17.37.37.87.98.0
Percentage of Assets0.10.10.10.10.10.10.10.10.20.2
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.30.30.30.40.40.50.50.60.60.6

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value103111121122133141152153163171
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.41.51.61.81.92.12.12.32.4

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value96103112113122130139140150157
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue93.193.193.092.492.392.092.091.492.091.9
Percentage of Assets1.21.31.41.51.61.81.92.02.12.2
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico1.71.92.02.12.32.52.72.72.93.0

pnm:TexasNewMexicoPowerCompany


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.2837.2027.5548.2069.0319.87310111112
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue6.16.56.26.76.87.07.07.57.27.2
Percentage of Assets0.10.10.10.10.10.10.10.20.20.2
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.30.30.40.40.50.50.60.60.70.7

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value10111213151617181920
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.20.20.20.20.20.30.30.3

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value10101112131416171819
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount94.595.091.692.191.491.391.291.194.495.6
Percentage of Assets0.10.10.10.20.20.20.20.20.30.3
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico0.20.20.20.20.30.30.30.30.40.4

pnm:TexasNewMexicoPowerCompany


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.1550.5020.5820.5540.7050.790.880.9780.3670.18
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount1.54.44.54.04.64.85.05.21.90.9
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany0.00.00.00.00.00.00.00.10.00.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2088203020491773169616271678167016121684168817711722168316951765172716861675168816671640165417631740171417211722169616651673166516041608163215991580157315911544154215361649
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets25.725.625.822.922.422.123.023.222.923.224.625.925.525.225.526.426.226.025.926.426.226.127.529.129.428.929.530.230.330.230.430.729.929.931.030.430.430.229.629.129.629.430.8

us-gaap:StockholdersEquity dei:LegalEntity

pnm:NMRD


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value177175181181168150130-112.167-80.004675352495333
Percentage of StockholdersEquity8.58.68.810.29.99.27.8-6.7-5.04.03.22.92.93.21.9
Percentage of Assets2.22.22.32.32.22.01.8-1.6-1.10.90.80.80.70.80.5
Percentage of Assets pnm:NMRD99.299.199.399.298.698.893.1-99.0-99.30.099.70.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1863181918041547144613901449142213391422139715371458143014221511144814181397140113351319131712621240121812101279127012541269123312361212115011151123
Percentage of StockholdersEquity89.389.688.187.385.385.486.385.183.184.482.886.884.684.983.985.683.884.183.483.080.180.479.673.473.173.272.376.979.278.077.777.178.277.072.372.273.1
Percentage of Assets23.022.922.720.019.118.819.919.719.019.620.422.421.621.421.422.622.021.921.621.921.021.021.921.722.122.122.023.623.723.324.123.523.823.321.421.021.5
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico32.932.732.328.426.926.427.627.526.227.327.730.529.229.028.930.129.329.128.729.228.028.028.728.428.928.928.630.530.630.131.230.330.729.629.228.529.0

pnm:TexasNewMexicoPowerCompany


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value902834825767759750754688678667674649648642634598595590593597543540533524512509502482467463472471466463464454453451423
Percentage of StockholdersEquity43.241.140.343.344.846.145.041.242.139.639.936.737.738.237.433.934.535.035.435.432.633.032.230.530.230.630.129.029.128.828.929.529.529.429.229.429.527.40.0
Percentage of Assets11.110.510.49.910.010.210.39.69.69.29.89.59.69.69.58.99.09.19.29.38.68.68.99.09.19.39.18.98.78.69.09.09.08.98.68.68.78.40.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany40.238.638.737.038.239.240.637.638.435.740.539.941.042.142.340.841.442.342.943.740.641.241.142.742.443.443.341.542.542.744.544.744.944.744.644.644.80.00.0

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

pnm:TexasNewMexicoPowerCompany, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value737685685614614614614534534534534504504504504454454454454454404404404404404404404390390390405413416416423423430443427
Percentage of StockholdersEquity35.333.733.434.636.237.736.632.033.131.731.628.529.329.929.725.726.326.927.126.924.224.624.423.523.824.324.123.424.324.324.825.926.326.526.627.428.026.90.0
Percentage of Assets9.18.68.67.98.18.38.47.47.67.47.87.47.57.67.66.86.97.07.07.16.46.46.76.97.27.37.37.27.37.37.77.98.08.07.98.08.28.30.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:TexasNewMexicoPowerCompany, us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value16414914015214513614015414413313914514413813014314113613914313913612912010810598927773665749464132248.614-3.552
Percentage of StockholdersEquity7.97.36.98.68.68.48.49.29.07.98.38.28.48.27.78.18.28.18.38.58.48.37.87.06.46.35.95.54.84.64.13.63.23.02.62.11.60.50.0
Percentage of Assets2.01.91.82.01.91.81.92.12.01.82.02.12.12.12.02.12.12.12.12.22.22.22.12.11.91.91.81.71.41.41.31.11.00.90.80.60.50.20.0
Percentage of Assets pnm:TexasNewMexicoPowerCompany us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value2049167816881695
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets25.823.024.625.5
Percentage of Assets srt:ParentCompany73.471.075.275.4

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value2145208821081832175616871741173516741747175218361788174917611833179517541744175817381711172618351813178717951798177217421750174317091683168917131680166216561675172917261721183918441692
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets26.426.326.623.723.222.923.924.123.824.125.526.826.526.226.527.427.327.127.027.527.327.328.730.330.630.130.831.531.631.631.832.131.631.331.432.632.032.031.831.232.633.133.034.30.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

pnm:PublicServiceCompanyOfNewMexico


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value1920187618631607150614501512148614021485146116021523149514881579151614861466147114061390138913361316129412871358137313491334135013141318129412341200120812381439
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest89.589.988.487.785.886.086.885.783.785.083.487.385.285.584.586.184.484.784.183.780.981.280.574.474.374.373.577.980.380.179.078.878.279.378.273.769.470.267.378.0
Percentage of Assets23.723.623.520.819.919.720.720.619.920.521.323.422.622.422.423.623.023.022.723.022.122.223.122.923.523.523.425.025.425.124.825.725.025.424.923.022.623.123.10.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico34.033.833.429.528.027.628.828.727.528.629.031.830.530.430.231.430.730.530.130.729.529.530.230.030.730.730.432.432.832.532.133.132.332.731.631.430.631.20.00.0

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

pnm:PublicServiceCompanyOfNewMexico, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value-95.8-97.357-98.914-105.049-106.597-108.145-109.693-108.218-109.599-110.98-112.361-106.026-110.262-96.748
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-4.5-4.7-4.7-5.7-6.1-6.4-6.3-6.2-6.5-6.4-6.4-5.8-6.3-5.5
Percentage of Assets-1.2-1.2-1.2-1.4-1.4-1.5-1.5-1.5-1.6-1.5-1.6-1.5-1.7-1.5
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value16152016156.559109.8049.6516.7151.9391.505134.32
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.80.71.00.90.90.40.60.60.60.40.10.10.70.2
Percentage of Assets0.20.20.30.20.20.10.10.10.10.10.00.00.20.1
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value-79.353-82.134-78.511-88.745-90.992-101.586-99.055-98.414-99.948-104.265-110.422-104.521-106.709-108.019-97.093-82.605-85.594-88.39-92.428-73.24-73.911-74.145-71.476-61.755-55.64-57.022-57.877-72.573-78.444-76.514-81.414-60.615-62.448-60.168-66.798-71.966-68.468-66.786-51.80717
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-3.7-3.9-3.7-4.8-5.2-6.0-5.7-5.7-6.0-6.0-6.3-5.7-6.0-6.2-5.5-4.5-4.8-5.0-5.3-4.2-4.3-4.3-4.1-3.4-3.1-3.3-3.3-4.2-4.6-4.5-4.8-3.5-3.7-3.6-4.0-4.3-4.0-3.9-2.81.0
Percentage of Assets-1.0-1.0-1.0-1.1-1.2-1.4-1.4-1.4-1.4-1.4-1.6-1.5-1.6-1.6-1.5-1.2-1.3-1.4-1.4-1.1-1.2-1.2-1.2-1.1-1.0-1.0-1.1-1.3-1.5-1.4-1.5-1.2-1.2-1.2-1.3-1.3-1.3-1.3-1.00.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value149414941494126412641264126412641264126412641264126412641264126412641264126412641240123612361061106110611061106110611061106110611061106110611018101810181018932
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest69.771.670.969.072.075.072.672.975.572.472.268.970.772.371.869.070.572.172.571.971.472.371.659.159.961.060.760.962.163.162.962.063.263.964.160.858.959.255.450.5
Percentage of Assets18.418.818.816.316.717.217.317.617.917.418.418.518.718.919.018.919.219.519.519.819.519.720.618.218.919.319.319.619.619.819.820.220.220.420.419.019.219.519.00.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value57575959596063646262646565656667686868707170717376767778787880818181828384858998
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest2.72.72.83.23.43.63.63.73.73.63.73.63.73.73.83.73.83.93.94.04.14.14.14.14.34.44.44.54.64.74.84.74.94.95.05.04.94.94.95.3
Percentage of Assets0.70.70.70.80.80.80.90.90.90.90.91.01.01.01.01.01.01.11.11.11.11.11.21.31.41.41.41.41.51.51.51.51.61.61.61.61.61.61.70.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value1863181918041547144613901449142213391422139715371458143014221511144814181397140113351319131712621240121812101279129412701254126912331236121211501115112311481341
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest86.987.185.684.582.382.483.282.080.081.479.783.781.581.880.782.580.780.880.179.776.877.176.370.470.070.069.173.475.775.574.274.173.474.473.268.764.565.262.572.7
Percentage of Assets23.022.922.720.019.118.819.919.719.019.620.422.421.621.421.422.622.021.921.621.921.021.021.921.722.122.122.023.624.023.723.324.123.523.823.321.421.021.521.40.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pnm:PublicServiceCompanyOfNewMexico, us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value448406388371272226283255174261242377299273254329268241225209168156152262234213206290311285273267233234217203165171181391
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest20.919.518.420.315.513.416.314.710.415.013.920.516.815.614.418.015.013.812.911.99.79.28.814.613.212.311.816.718.216.916.215.613.914.113.112.29.610.09.921.2
Percentage of Assets5.55.14.94.83.63.13.93.62.53.63.55.54.44.13.84.94.13.73.53.32.62.52.54.54.23.93.85.45.85.35.15.14.54.54.23.83.13.33.40.0
Percentage of Assets pnm:PublicServiceCompanyOfNewMexico us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-0.208-0.672-1.131-1.589-1.841-0.322-0.467-0.2341.0261.7383.0411.153
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.0-0.0-0.1-0.1-0.1-0.0-0.0-0.00.10.10.20.1
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-79.353-82.342-79.183-89.876-92.581-103.427-99.377-98.881-100.182-103.239-108.684-101.48-103.757-105.52-95.94-82.501-85.595-88.458-92.451-73.643-74.706-74.798-71.432-71.3-63.825-59.23-61.755-56.532-55.888-57.349-58.14-72.926-78.594-76.691-81.63-60.858-62.628-60.305-66.856-72.913-70.691-67.992-68.666-46.0573011
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-3.7-3.9-3.8-4.9-5.3-6.1-5.7-5.7-6.0-5.9-6.2-5.5-5.8-6.0-5.4-4.5-4.8-5.0-5.3-4.2-4.3-4.4-4.1-3.9-3.5-3.3-3.4-3.1-3.2-3.3-3.3-4.2-4.6-4.6-4.8-3.6-3.7-3.6-4.0-4.4-4.1-3.9-4.0-2.51.70.7
Percentage of Assets-1.0-1.0-1.0-1.2-1.2-1.4-1.4-1.4-1.4-1.4-1.6-1.5-1.5-1.6-1.4-1.2-1.3-1.4-1.4-1.2-1.2-1.2-1.2-1.2-1.1-1.0-1.1-1.0-1.0-1.0-1.1-1.3-1.5-1.4-1.5-1.2-1.2-1.2-1.3-1.4-1.3-1.3-1.3-0.90.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value1425142514291145114311421150114911481148115311501149115011571156115611561163116211621162116611651165116511731172117211721178117711771176118211831186118711931318129012891290128912881042
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest66.568.267.862.565.167.766.166.368.665.765.862.764.365.865.763.164.465.966.766.166.967.967.663.564.265.265.465.266.167.367.367.568.969.970.069.170.671.572.078.774.774.774.970.169.861.6
Percentage of Assets17.617.918.014.815.115.515.816.016.315.816.816.817.017.217.417.317.617.918.018.218.318.519.419.319.719.620.120.520.921.321.421.721.821.922.022.522.622.922.924.524.424.724.724.10.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value575759595960636462626465656566676868687071707172737273757676777878788081818182838484858998
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest2.72.72.83.23.43.63.63.73.73.63.73.63.73.73.83.73.83.93.94.04.14.14.13.94.04.14.14.24.34.44.44.54.64.74.84.74.94.95.05.04.94.94.94.95.3
Percentage of Assets0.70.70.70.80.80.8</