FHN


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

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:SharesOutstanding

us-gaap:CommonStockSharesIssued
us-gaap:StatementEquityComponents
us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
dei:LegalEntity
us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets
dei:LegalEntity
us-gaap:CapitalToRiskWeightedAssets

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxesPaid

us-gaap:InterestExpense

us-gaap:InterestExpenseLongTermDebt

us-gaap:InterestIncomeExpenseNet
us-gaap:StatementBusinessSegments

us-gaap:InterestIncomeOperating

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents
us-gaap:ProductOrService
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:Assets
dei:LegalEntity, us-gaap:SubsequentEventType
us-gaap:ConsolidatedEntities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:Liabilities
us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:ConsolidatedEntities

us-gaap:Land

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:FurnitureAndFixturesGross

us-gaap:LeaseholdImprovementsGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet

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

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

us-gaap:OperatingLeaseRightOfUseAsset
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:EquitySecuritiesFvNi
us-gaap:FairValueByMeasurementBasis

us-gaap:OtherAssets
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:TimeDepositMaturitiesYearOne

us-gaap:MinorityInterest

us-gaap:OperatingLeaseLiability

us-gaap:StockholdersEquity

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

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit
dei:LegalEntity

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:MinorityInterest

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock
dei:LegalEntity, us-gaap:Range, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxAssetsNet
us-gaap:IncomeTaxAuthority

us-gaap:UnrecognizedTaxBenefits

us-gaap:ProceedsFromRepaymentsOfShortTermDebt

fhn:Amortizationofintangibleassetsexcludinggoodwill

fhn:BankcardOtherIncome
us-gaap:StatementBusinessSegments

fhn:BrokerageManagementFeesAndCommissions
us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition
fhn:BusinessAcquisitionProFormaInterestIncomeExpenseNet
us-gaap:BusinessAcquisition
fhn:BusinessAcquisitionProFormaNoninterestIncome

fhn:BusinessCombinationProFormaInformationInterestIncomeExpenseNetOfAcquireeSinceAcquisitionDateActual

fhn:BusinessCombinationProFormaInformationNoninterestIncomeOfAcquireeSinceAcquisitionDateActual

fhn:CharitableContributionExpense

fhn:ComputerSoftware
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
fhn:DebtSecuritiesGainLossNet
us-gaap:RetirementPlanType
fhn:DefinedBenefitPlanAmortizationofGainLossIncludingSettlementCurtailmentExpense
us-gaap:RetirementPlanType
fhn:DefinedBenefitPlanNetPeriodicBenefitCostCreditBeforeASC715Expense

fhn:DepositTransactionsAndCashManagement
us-gaap:StatementBusinessSegments

fhn:DepreciationPremisesAndEquipment

fhn:DividendsPreferredStockIncludingCalls
us-gaap:FairValueByAssetClass
fhn:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationAcquisition
fhn:SubClassofFinancingReceivable
fhn:FinancingReceivableAllowanceforCreditLossWriteoffCollateral
fhn:ReserveForFundedAndUnfundedCommitments
fhn:FinancingReceivableCreditLossInitialReserveOnLoansAcquired
fhn:ReserveForFundedAndUnfundedCommitments, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fhn:FixedIncome
us-gaap:StatementBusinessSegments

fhn:GainLossOnBankOwnedLifeInsurance
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument, us-gaap:HedgingDesignation
fhn:GainLossRelatedToChangesInFairValueOfTermBorrowingsDueToInterestRateRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument, us-gaap:HedgingDesignation
fhn:GainsLossesRelatedToInterestRateDerivatives

fhn:InterestIncomeDebtSecuritiesAvailableForSaleOperatingTaxExempt

fhn:InterestIncomeDebtSecuritiesAvailableForSaleOperatingTaxable

fhn:LoansReceivableHeldForSaleReconciliationToCashFlowMortgageLoansTransferredToHeldForInvestment

fhn:LoansReceivableHeldForSaleReconciliationToCashFlowOriginationsAndPurchases

fhn:MortgageBanking
us-gaap:FairValueByMeasurementFrequency
fhn:NetGainsLossOnFinancialAssetsMeasuredOnNonrecurringBasis
fhn:LoansHeldForSaleByType, us-gaap:FairValueByMeasurementFrequency
fhn:NetGainsOrLossesLoansHeldForSale
us-gaap:MortgageLoansOnRealEstateDescriptionLoanCategory, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
fhn:NetGainsOrLossesLoansNetOfUnearnedIncome
us-gaap:FairValueByMeasurementFrequency
fhn:NetGainsOrLossesOtherAssets
us-gaap:FairValueByMeasurementFrequency
fhn:NetGainsOrLossesOtherRealEstateOwned
us-gaap:FairValueByMeasurementFrequency
fhn:NetGainsOrLossesRealEstateAcquiredByForeclosure

fhn:PaymentsForCancellationOfCommonStock

fhn:PaymentsToAcquirePropertyPlantAndEquipmentExcludingAcquistionRelatedPurchases

fhn:SegmentReportingAverageAssets
us-gaap:StatementBusinessSegments

fhn:StockOptionsWeightedAverageExercisePrice

fhn:TransferFromLoansToLoansHeldForSale

fhn:TransferFromLoansToRealEstateAcquiredByForeclosure

fhn:TransferfromLoansHeldForSaletoTradingSecurities

fhn:TrustServicesAndInvestmentManagement
us-gaap:StatementBusinessSegments

us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities
us-gaap:BalanceSheetLocation
us-gaap:AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount
us-gaap:BalanceSheetLocation
us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization

us-gaap:AmortizationOfMortgageServicingRightsMSRs
us-gaap:FairValueByAssetClass, us-gaap:RestructuringPlan, us-gaap:StatementBusinessSegments
us-gaap:AssetImpairmentCharges
us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss

us-gaap:BusinessCombinationBargainPurchaseGainRecognizedAmount
us-gaap:BusinessAcquisition
us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferred1
us-gaap:AwardType, us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:EquityInterestIssuedOrIssuableByType

us-gaap:BusinessCombinationIntegrationRelatedCosts
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation
us-gaap:IncomeStatementLocation

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:DebtAndEquitySecuritiesRealizedGainLoss
us-gaap:StatementBusinessSegments

us-gaap:DebtSecuritiesAvailableForSaleGainLoss

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

us-gaap:DebtSecuritiesRealizedGainLoss
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:DefinedBenefitPlanOtherCosts
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:DividendsPreferredStock
us-gaap:StatementEquityComponents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:EarlyRepaymentOfSeniorDebt

us-gaap:EquipmentExpense

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss
us-gaap:FairValueByAssetClass
us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
us-gaap:FairValueByFairValueHierarchyLevel
fhn:FairValueOfLoans, us-gaap:IncomeStatementLocation
us-gaap:FairValueOptionChangesInFairValueGainLoss1

us-gaap:FeesAndCommissionsMortgageBankingAndServicing
us-gaap:IncomeStatementLocation
us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition
us-gaap:FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate
fhn:SubClassofFinancingReceivable

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAmountAtParValue
fhn:SubClassofFinancingReceivable

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice
fhn:SubClassofFinancingReceivable

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationDiscountPremium
fhn:SubClassofFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRevolvingConvertedToTermLoanDuringPeriod
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:GainLossOnDerivativeInstrumentsNetPretax

us-gaap:GainLossOnSaleOfNotesReceivable

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:IncreaseDecreaseInDeposits

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:InformationTechnologyAndDataProcessing

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldForSale

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseShortTermBorrowings

us-gaap:InterestExpenseTradingLiabilities

us-gaap:InterestIncomeDebtSecuritiesAvailableForSaleOperating

us-gaap:InterestIncomeDebtSecuritiesTradingOperating

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss

us-gaap:LaborAndRelatedExpense

us-gaap:LegalFees

us-gaap:LoansReceivableHeldForSaleReconciliationToCashFlowDeductionsFromHeldForSale

us-gaap:NoninterestExpense
us-gaap:StatementBusinessSegments

us-gaap:NoninterestIncome
us-gaap:StatementBusinessSegments

us-gaap:NoninterestIncomeOtherOperatingIncome
us-gaap:StatementBusinessSegments

us-gaap:OccupancyNet

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
us-gaap:HedgingDesignation
us-gaap:HedgingDesignation
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherInterestAndDividendIncome

us-gaap:OtherNoninterestExpense
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:PaymentsOfDividendsPreferredStockAndPreferenceStock

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt
us-gaap:BusinessAcquisition
us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:PaymentsToAcquireLoansAndLeasesHeldForInvestment

us-gaap:PaymentsToPurchaseLoansHeldForSale

us-gaap:ProceedsFromIncomeTaxRefunds

us-gaap:ProceedsFromIssuanceOfOtherLongTermDebt

us-gaap:ProceedsFromIssuanceOfPreferredStockAndPreferenceStock

us-gaap:ProceedsFromLifeInsurancePolicies

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromPaymentsForInInterestBearingDepositsInBanks

us-gaap:ProceedsFromRepaymentsOfSecuredDebt

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfLoansHeldForSale

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProvisionForLoanLossesExpensed
fhn:ReserveForFundedAndUnfundedCommitments
fhn:ReserveForFundedAndUnfundedCommitments, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:StatementBusinessSegments

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:IncomeStatementLocation, us-gaap:RestructuringPlan
us-gaap:RestructuringCharges
us-gaap:RestructuringPlan
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesAcquisitions
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationGross

us-gaap:StockIssuedDuringPeriodValueAcquisitions
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockRedeemedOrCalledDuringPeriodShares

us-gaap:StockRedeemedOrCalledDuringPeriodValue
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedAndRetiredDuringPeriodShares

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:ShareRepurchaseProgram
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityOtherShares
us-gaap:StatementBusinessSegments
us-gaap:TangibleAssetImpairmentCharges

us-gaap:TradingGainsLosses

us-gaap:UnrealizedGainLossOnDerivatives

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment
us-gaap:ConsolidatedEntities
fhn:AccruedEmployeeBenefitsAndOtherLiabilities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
fhn:BorrowingsSecuredByResidentialRealEstate
us-gaap:FairValueByMeasurementBasis
us-gaap:BusinessAcquisition
fhn:BusinessAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancingReceivables
us-gaap:BusinessAcquisition
fhn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancingReceivableBeforeAllowanceForCreditLosses
us-gaap:BusinessAcquisition
fhn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInterestBearingDepositsWithBanks
us-gaap:BusinessAcquisition
fhn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansAndLeasesReceivableAllowance
us-gaap:BusinessAcquisition
fhn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansHeldForSale
us-gaap:BusinessAcquisition
fhn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherLiabilities
us-gaap:BusinessAcquisition
fhn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherRealEstateOwned
us-gaap:BusinessAcquisition
fhn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSecuritiesAvailableForSale
us-gaap:BusinessAcquisition
fhn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits
us-gaap:BusinessAcquisition
fhn:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansAndLeasesReceivableNetOfDeferredIncome
us-gaap:FairValueConcentrationOfRiskDisclosureItems, us-gaap:FinancialInstrument
fhn:CollateralReceived
dei:LegalEntity
fhn:CommonEquityTier1Capital
dei:LegalEntity
fhn:CommonEquityTier1CapitalRequiredForCapitalAdequacy
dei:LegalEntity
fhn:CommonEquityTier1CapitalRequiredToBeWellCapitalized
dei:LegalEntity
fhn:CommonEquityTier1CapitalToRiskWeightedAssets
us-gaap:BalanceSheetLocation
fhn:ContractualFundingCommitments
dei:LegalEntity
fhn:CoveredTransactions
fhn:AssetsAndLiabilitiesUconsolodiatedVieByBalanceSheetLocation, us-gaap:BalanceSheetLocation
fhn:CurrentInvestments

fhn:DeferredTaxAssetsLeaseLiability

fhn:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLossesAndOtherLossReserves

fhn:DeferredTaxLiabilitiesEquityMethodInvestments

fhn:DeferredTaxLiabilitiesLeasing

fhn:DeferredTaxLiabilitiesRightOfUseAsset
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us-gaap:PledgedStatus

us-gaap:FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestRevolving
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:FinancingReceivableModificationsRecordedInvestment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableNonaccrualNoAllowance
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRevolving
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRevolvingConvertedToTermLoan
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LongtermDebtType

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
us-gaap:StatementBusinessSegments
us-gaap:GoodwillGross
us-gaap:StatementBusinessSegments
us-gaap:GoodwillImpairedAccumulatedImpairmentLoss

us-gaap:InterestBearingDepositLiabilities

us-gaap:InterestBearingDepositsInBanks
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis
us-gaap:DerivativeInstrumentRisk
us-gaap:InterestRateDerivativeAssetsAtFairValue
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk
us-gaap:InterestRateDerivativeLiabilitiesAtFairValue
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument, us-gaap:HedgingDesignation
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:JuniorSubordinatedNotes
us-gaap:FairValueByMeasurementBasis

us-gaap:LessorOperatingLeasePaymentsToBeReceived

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:LitigationReserve
us-gaap:Range

us-gaap:LoansAndLeasesReceivableAllowance
fhn:SubClassofFinancingReceivable
us-gaap:LoansAndLeasesReceivableCollateralForSecuredBorrowings
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:LoansAndLeasesReceivableNetOfDeferredIncome

us-gaap:LoansAndLeasesReceivableNetReportedAmount
dei:LegalEntity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:LoansHeldForSaleFairValueDisclosure
fhn:LoansHeldForSaleByType, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
fhn:LoansHeldForSaleByType, us-gaap:FairValueByMeasurementFrequency
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FairValueByMeasurementFrequency
us-gaap:MortgageLoansOnRealEstateDescriptionLoanCategory, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:MortgageLoansOnRealEstateDescriptionLoanCategory, us-gaap:FairValueByMeasurementFrequency
fhn:LoansHeldForSaleByType, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:LoansHeldForSaleMeasurementInput
fhn:LoansHeldForSaleByType, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
fhn:LoansHeldForSaleByType, us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
fhn:LoansHeldForSaleByType, us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:LoansPledgedAsCollateral

us-gaap:LoansReceivableFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:LoansReceivableHeldForSaleNetNotPartOfDisposalGroup
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:NetInvestmentInLease

us-gaap:NoninterestBearingDepositLiabilities

us-gaap:NotesReceivableGross
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:BalanceSheetLocation
us-gaap:CreditScoreFico, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities

us-gaap:NotesReceivableNet

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:OtherBorrowings
us-gaap:FairValueByMeasurementBasis

us-gaap:OtherFiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OtherLiabilities
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
fhn:OtherAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasis, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:OtherLiabilitiesFairValueDisclosure
fhn:OtherAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:OtherLongTermDebt
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:OtherRealEstateOwnedMeasurementInput
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:OtherShortTermBorrowings
us-gaap:FairValueByMeasurementBasis
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent

us-gaap:PreferredStockLiquidationPreferenceValue
us-gaap:BalanceSheetLocation, us-gaap:StatementClassOfStock
us-gaap:StatementClassOfStock
us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

us-gaap:PreferredStockValue
us-gaap:StatementClassOfStock
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:RealEstateAcquiredThroughForeclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:ResidualValueOfLeasedAsset
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:RestrictedInvestments

us-gaap:SecuritiesPurchasedUnderAgreementsToResell
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:SecuritiesPurchasedUnderAgreementsToResellAmountOffsetAgainstCollateral

us-gaap:SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnCash

us-gaap:SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnSecurities

us-gaap:SecuritiesPurchasedUnderAgreementsToResellGross

us-gaap:SecuritiesSoldUnderAgreementsToRepurchase
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis
us-gaap:FinancialInstrument

us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral

us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash

us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities

us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseGross

us-gaap:SecurityOwnedAndPledgedAsCollateralFairValue

us-gaap:ServicingAsset

us-gaap:ServicingAssetAtAmortizedValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:ShortTermBorrowings
us-gaap:ShortTermDebtType
us-gaap:ShortTermDebtType
us-gaap:ShortTermDebtWeightedAverageInterestRate
dei:LegalEntity, us-gaap:SubsequentEventType
us-gaap:StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval
dei:LegalEntity
us-gaap:TierOneLeverageCapital
dei:LegalEntity
us-gaap:TierOneLeverageCapitalRequiredForCapitalAdequacy
dei:LegalEntity
us-gaap:TierOneLeverageCapitalRequiredToBeWellCapitalized
dei:LegalEntity
us-gaap:TierOneLeverageCapitalToAverageAssets
dei:LegalEntity
us-gaap:TierOneRiskBasedCapitalRequiredForCapitalAdequacy
dei:LegalEntity
us-gaap:TierOneRiskBasedCapitalRequiredToBeWellCapitalized

us-gaap:TimeDepositMaturitiesAfterYearFive

us-gaap:TimeDepositMaturitiesYearFive

us-gaap:TimeDepositMaturitiesYearFour

us-gaap:TimeDepositMaturitiesYearThree

us-gaap:TimeDepositMaturitiesYearTwo

us-gaap:TimeDeposits

us-gaap:TimeDepositsAtOrAboveFDICInsuranceLimit

us-gaap:TradingLiabilities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:TradingSecurities

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:BalanceSheetLocation
us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount
us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Interest Expense
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Operating Lease Right Of Use Asset
Current Assets
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
NonCurrent Assets
Intangible Assets Net Excluding Goodwill
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Derivative Liabilities
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInInvestingActivities
Payments For Proceeds From Other Investing Activities
NetCashProvidedByUsedInFinancingActivities
Payments For Repurchase Of Common Stock
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
BanksAndOrInsurance
Interest Income Operating
AssetsBanks
Federal Funds Sold And Securities Purchased Under Agreements To Resell
LiabilitiesBanks
Trading Liabilities

Tables

  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue █▃▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▁▁▁346.742195.224194.914194.668194.487195.299197.101199.108202.464203.127204.496204.211146.395146.336146.177146.015145.772145.012145.342149.117146.398146.263145.937146.387147.03148.217147.866147.731147.705150.347150.766152.249154.459155.506157.917160.918164.762164.812164.584164.604145.526143.021141.048
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock█▁▁▁▁▁▁▁554.788312.359311.863311.469311.18312.478315.361318.573NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:PreferredStockIncludingAdditionalPaidInCapital█▁▁▁▁▁▁▁26.252.51.01.01.01.01.01.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockSharesIssued NA312.358668311.862565311.469056311.179707312.478071315.361125318.5734323.942816325.003353327.193702326.736214234.230515234.135417233.88325233.623686233.234592232.019031232.547029238.586637234.237439234.020798233.498534234.219663235.248564237.146617236.586017236.369554236.32809240.554552241.224839243.59778247.133973248.810099252.66686257.468092263.61904263.698516263.335004263.366429237.060935236.839568236.585067
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStockNANA311.863311.469311.18312.478315.361318.573323.943325.003327.194326.736NANANA233.624NANANA238.587NANANA234.22NANANA236.37NANANA243.598NANANA257.468NANANA263.366NANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:PreferredStockIncludingAdditionalPaidInCapitalNANANA1.0NANANA1.0NANANA1.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁▁550.846312.936313.17NA313.805315.786319.581NA327.252328.426330.344NA236.34236.263236.855NA234.092233.576236.666NA235.058234.669232.816NA236.862237.25237.401NA236.895240.891242.799NA248.306249.104255.369NA262.803262.756265.556NA238.867240.968234.469
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁▁549.69312.09311.597NA311.888314.063317.435NA324.406325.153326.489NA233.749233.482233.076NA231.856231.573234.651NA233.111232.8232.816NA235.329235.797235.183NA236.895239.248240.87NA246.628249.104253.527NA261.284261.289261.174NA234.638234.556234.469
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities fhn:OtherEquityAwards█▁▁6.8244.3894.264NA2.0942.4031.922NA1.6050.5650.307NA1.0020.482NANANANANANANANA2.5NANANANANA2.8NANANANA3.4NANA1.10.40.1NA0.30.3NA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOption█▄▁8.3065.1343.031NA1.8832.7732.613NA2.2512.4462.41NA2.5952.721NANANANANANANA3.67.9NA4.35.64.7NA9.48.68.8NA10.0NANANANANANANANANANA
us-gaap:EarningsPerShareBasic █▄▄▅▅▅▅▅▇▅▅▂▅▅▅▅▅▅▄▄▅▄▂▄▄▅▄▄▁▄▄▄▄▁▄▄▄▄▄▂▄▃▃0.950.170.040.37999999999999990.350.350.310.29999999999999980.830.250.28-0.250.290.390.230.229999999999999980.270.240.20.20.250.22-0.330.200000000000000070.190.330.190.21000000000000002-0.450.170.170.160000000000000030.1-0.50.120.130.140.080.15-0.210.070.01-0.12
us-gaap:EarningsPerShareDiluted █▄▄▅▅▅▅▅▇▅▅▂▅▅▅▅▅▅▄▄▅▄▂▄▄▅▄▄▁▄▄▄▄▁▄▄▄▄▄▂▄▃▃0.950.170.040.37999999999999990.350.350.310.29999999999999980.830.250.27-0.250.280.380.230.229999999999999980.270.240.20.20.250.22-0.330.200000000000000070.190.320.190.21000000000000002-0.450.170.170.160000000000000030.1-0.50.120.130.140.080.15-0.210.070.01-0.12
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity fhn:FhnNANANA1.015e-07NANANA1.08e-07NANANA9.83e-08NANANA1.1169999999999999e-07NANANA1.179e-07NANANA1.446e-07NANANA1.387e-07NANANA1.31e-07NANANA1.423e-07NANANANANANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity fhn:FirstHorizonBankNANANA1.018e-07NANANA1.0720000000000001e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity fhn:FhnNANANA1.122e-07NANANA1.194e-07NANANA1.11e-07NANANA1.2239999999999998e-07NANANA1.3009999999999998e-07NANANA1.618e-07NANANA1.623e-07NANANA1.5939999999999998e-07NANANA1.7990000000000002e-07NANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity fhn:FirstHorizonBankNANANA1.077e-07NANANA1.132e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTax █▃▄▄▄▄▄▄▅▃▃▁▃▃▃▂▃▃▃▂▃▃▂▂▃▃▃▃▁▂▃▂▃▁▃▂▃▃▃530.38955.18117.064119.419132.895169.552156.05158.928246.29861.11125.125-84.18673.964104.84853.264-31.98256.25876.19593.11311.06571.92733.017-56.076-7.536.1596.32956.30777.336-93.6275.36736.8611.02231.705-122.74336.07-11.66261.0641.86237.326NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest █▄▄▆▅▄▃▆▅▄▃▆▅▄▃▅▅▄▄▄█▄▁█▅▄▃▇▅▄▃▆▅▄▄▅▅▄▄2.9772.8512.8522.912.8832.8522.822.912.8832.8522.822.912.8832.8522.822.8792.8832.8522.8512.8482.9772.8512.7582.982.8752.8592.8132.9342.8752.8432.8132.9012.8752.8442.8442.8712.8752.8442.844NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest █▃▄▄▄▄▄▄▅▃▃▁▃▃▃▂▃▃▃▂▃▃▂▂▃▃▃▃▁▂▃▂▃▁▃▂▃▃▃▂▃▃▂533.36658.031119.916122.329135.778172.404158.87161.838249.18163.96327.945-81.27676.847107.756.084-29.10359.14179.04795.96413.91374.90435.868-53.318-4.5239.02599.18859.1280.27-90.7528.2139.67313.92334.58-119.89938.914-8.79163.93544.70640.17-0.2829.67527.847-8.976
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▂▁▃▃▃▂▂▆▂▂541.24869.44521.239157.253149.739148.209130.463124.854358.641105.689124.925NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments █▄▃▄▄▄▄▄▆▄▄▃▄▄▄▄▄▄▄▃▄▄▂▄▄▄▄▃▂▄▄▃▃▁▃▃▃▃▃▃▃▃▃541.24869.44521.239157.253149.739148.209130.463124.854358.641105.689124.92525.60885.365112.45785.44281.73196.18290.95676.45254.14472.22976.547-94.66663.16965.17113.33767.87520.081-134.24360.24362.26930.6833.834-210.59544.37638.03742.51914.80654.15111.7537.35818.69-19.334
us-gaap:IncomeTaxExpenseBenefit ▅▅▅▆▆▆▆▆█▅▆█▅▅▆▆▆▆▆▅▅▅▄▅▅▆▅▃▃▅▅▄▅▁▅▅▅▄▅▄▅▅▄2.2112.784.76735.9735.79634.46727.05824.04983.92519.69729.93173.98913.59617.25327.05424.00828.54730.01624.2392.7158.89721.59-22.26112.27815.42132.15718.645-33.813-31.09415.00817.73-12.9145.26-88.17810.57-0.5268.367-4.24212.108-4.5373.29-1.659-16.518
us-gaap:IncomeTaxesPaid █▁▂▄▃▂▁▄▁▂▁▂▂▃▁▁▁▂▁▁▁▁▂▃▃▃▂▁▁▁▁▁▁83.1371.2465.2437.69417.96913.8341.00830.0380.2828.4314.06616.26616.34620.8540.9510.0290.24610.7170.6170.0940.0374.30510.55423.23922.5925.616.340.3930.2573.2991.488-1.4480.23NANANANANANANANANANA
us-gaap:InterestExpense ▅▃▅▇███▇▆▆▄▃▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▃65.84641.2875.56692.749106.818108.479106.10798.67487.96976.87962.18245.54538.32834.6429.10324.34621.77721.11221.5920.96820.12520.3921.20220.39819.31720.59121.22521.91823.77223.97225.01725.60127.05128.0629.57430.83832.0233.89734.8535.02437.02238.30139.101
us-gaap:InterestExpenseLongTermDebt █▄▁▃▄▅▅▄▄▄▃▃▂▂▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▃▂▂▂▂▂▁▁21.59514.1067.92110.49113.75214.68314.33713.84213.99213.2311.98310.1839.7628.3487.7447.3517.1656.9817.6069.7439.3149.6669.6649.1468.4458.4168.5638.9029.0789.1469.1959.4889.6899.82210.33510.1779.0819.2749.9748.3928.4567.4547.86
us-gaap:InterestIncomeExpenseNet █▄▄▄▄▄▄▄▄▄▄▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂532.365305.344302.802311.393300.676303.61294.508302.512305.7310.932301.173242.088209.817200.701189.708195.551185.195176.264172.074166.652163.562166.64156.866159.05159.541156.768152.359157.135158.838160.019161.382170.598173.465172.675171.929178.877176.34172.86172.755182.236186.143182.064180.395
us-gaap:InterestIncomeOperating NA346.0378.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestPaidNet ▄▃▆█▇█▆▇▅▆▄▄▂▃▂▂▁▃▁▂▁▃▁▂▁▂▁▃▁▃▁▃▁▃▁▃▂▄▂▃▃▃▃56.08641.50283.866107.703102.555111.85188.77499.41874.36982.37351.41847.96830.49740.4321.47829.11915.98236.13211.22331.11310.87535.51613.21828.36611.15930.22411.40231.63715.45141.0149.28539.49813.6244.20713.70845.3220.46148.48624.65839.27335.81544.74735.658
us-gaap:NetIncomeLoss █▃▂▄▃▃▃▃▅▃▃▂▃▃▃▃▃▃▃▃▃▃▂▃▃▃▃▃▁▃▃▃▃▁▃▃▃▃▃▂▃▃▂536.06153.81413.62118.373111.06110.89100.58597.895271.83383.1492.174-51.29168.88692.35255.56854.84464.75258.08849.36248.58160.35552.106-75.16347.91146.87478.32146.41750.954-105.90142.39342.15640.68125.807-124.77430.52734.94136.10519.99240.15914.46830.83517.634-12.737
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest █▄▄▆▅▄▃▆▅▄▃▆▅▄▃▅▅▄▄▄█▄▁█▅▄▃▇▅▄▃▆▅▄▄▅▅▄▄▄▅▄▄2.9772.8512.8522.912.8832.8522.822.912.8832.8522.822.912.8832.8522.822.8792.8832.8522.8512.8482.9772.8512.7582.982.8752.8592.8132.9342.8752.8432.8132.9012.8752.8442.8442.8712.8752.8442.8442.8392.8752.8442.844
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic █▃▂▄▄▄▃▃▅▃▃▂▃▃▃▃▃▃▃▃▃▃▂▃▃▃▃▃▁▃▃▃▃▁▃▃▃▃▃▂▃▂▂523.33952.26412.07116.823109.51109.3499.03596.345270.28381.5990.624-52.84167.33690.80254.01853.29463.20256.53847.81247.03158.80550.556-76.71346.36145.32476.77144.86749.404-107.45140.84340.96840.68125.807-124.77430.52734.94136.10519.99240.159-48.68615.8752.696-27.655
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax NA0.013.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▄▄█▄▅▆▆▆▃▃▂▃▄▅▄▁▄▅▆▃▅▃▅▂▄▅▅▅▅▃▄▃▄▄▄▂▅-5.6721.366103.4441.04621.83558.66255.46561.033-25.535-22.029-67.049-32.8955.07812.496-2.304-86.826-8.49418.10743.751-37.51611.572-19.08919.087-55.411-10.72418.0089.8926.38212.274-37.026-5.296-29.6595.8982.0315.543-46.60324.955NANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest█▁▁2.3792.02.0NA2.102NANANANANANANA1.8951.403NANA0.9630.844NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest▁▂█-2.9330.013.0NA2.844NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest▁▁█-5.118-1.089.0NA16.889NANANANANANANA3.9178.938NANA-7.88716.037NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▁▁█-5.6721.366103.444NA21.83558.66255.465NA-25.535-22.029-67.049NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss █▃▂▄▃▃▃▃▅▃▃▂▃▃▃▃▃▃▃▃▃▃▂▃▃▃▃▃▁▃▃▃▃▁▃▃▃▃▃▂▃▃▂539.03856.66516.472121.283113.943113.742103.405100.805274.71685.99294.994-48.38171.76995.20458.38857.72367.63560.9452.21351.42963.33254.957-72.40550.89149.74981.1849.2353.888-103.02645.23644.96943.58228.682-121.9333.37137.81238.9822.83643.00317.30733.7120.478-9.893
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService fhn:UnderwritingPortfolioAdvisoryandOtherNoninterestIncome█▆▇█▇▄▄▁▆▄9.98.89.310.19.27.17.34.98.47.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets █▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁83029.57948644.65947197.37843310.943717.68442171.7741099.00340832.25840635.92441076.79540463.19541423.38829622.63629369.95629618.628555.23128449.22227541.0726963.68226195.13625387.31925239.76725715.88825672.88723986.78724222.7523941.98923789.83324193.34125133.27425166.42725520.1425739.8325492.95525678.96924789.38425571.46925054.06624438.34424698.95225384.18126254.22625923.576
us-gaap:Liabilities █▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁74885.43743436.27442141.79838234.89238721.64137245.68936252.48236046.87835893.99336527.04635890.66736842.926739.08526543.06826878.1425850.14725704.6424849.14624320.73423555.5522807.07422721.86223216.63123081.91921364.84621596.59921397.85221289.08221760.04822586.92322566.723010.93423207.94222978.54923004.79622104.74722828.23922372.68421798.28722020.94722077.29322966.99322652.634
us-gaap:LiabilitiesAndStockholdersEquity █▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁83029.57948644.65947197.37843310.943717.68442171.7741099.00340832.25840635.92441076.79540463.19541423.38829622.63629369.95629618.628555.23128449.22227541.0726963.68226195.13625387.31925239.76725715.88825672.88723986.78724222.7523941.98923789.83324193.34125133.27425166.42725520.1425739.8325492.95525678.96924789.38425571.46925054.06624438.34424698.95225384.18126254.22625923.576
us-gaap:StockholdersEquity █▄▄▄▄▄▄▄▄▄▄▄▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂7848.7114912.9544760.1494780.5774700.6124630.654551.094489.9494446.54254.3184277.0974285.0572588.122531.4572445.0292409.6532449.1512396.4932347.5172344.1552284.8142222.4742203.8262295.5372326.512330.722248.7062205.322137.8622250.9772304.472214.0412236.7232219.2412379.0082389.4722448.0652386.2172344.8922382.843011.7232992.0682975.777
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity fhn:FhnNANANA3760.45NANANA3565.373NANANA3281.478NANANA2671.871NANANA2572.141NANANA2813.503NANANA2618.976NANANA2640.776NANANA2850.452NANANANANANANA
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity fhn:FirstHorizonBankNANANA3728.683NANANA3492.541NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities srt:ParentCompanyNANANA369.268NANANA334.485NANANA254.938NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▁▂▄▆▃▃▅▆1668.1131019.5471130.0491266.8931495.681249.7051212.871405.3251443.21NANA1452.046NANANA1037.794NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Land NANANA98.804NANANA107.864NANANA104.454NANANA63.463NANANA67.442NANANA76.667NANANA75.593NANANA69.916NANANA71.376NANANA66.914NANANA
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:PropertyPlantAndEquipmentGross NANANA792.743NANANA815.845NANANA850.965NANANA612.881NANANA636.581NANANA670.647NANANA670.068NANANA655.978NANANA679.054NANANA663.143NANANA
us-gaap:FurnitureAndFixturesGross NANANA205.493NANANA196.469NANANA194.057NANANA180.435NANANA194.072NANANA201.443NANANA202.102NANANA206.033NANANA221.544NANANA213.289NANANA
us-gaap:LeaseholdImprovementsGross NANANA50.032NANANA30.23NANANA26.64NANANA26.956NANANA31.27NANANA32.404NANANA38.303NANANA42.442NANANA44.407NANANA44.88NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANANA337.737NANANA321.804NANANA318.714NANANA323.496NANANA360.962NANANA367.651NANANA364.824NANANA352.705NANANA357.801NANANA340.824NANANA
us-gaap:AmortizationOfIntangibleAssets █▃▃▄▄▄▄▄▄▄▄▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▁▁14.6295.2845.3086.2066.2066.2066.2166.4616.466.466.4743.5681.9641.9641.2321.31.2991.2991.31.3591.2981.2981.2981.2250.9820.9810.9821.1280.9280.9280.9280.9790.9790.9790.9731.01.0041.0321.0322.4141.0371.0781.078
us-gaap:PropertyPlantAndEquipmentNet █▄▄▄▄▄▄▄▄▅▅▅▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▁▁▂▂▂▂▂▂▂▂▂▂▂756.113448.028447.812455.006451.6454.271484.494494.041506.453525.175531.981532.251293.393292.463290.497289.385279.178279.676274.347275.619269.332269.507301.069302.996295.833300.533299.183305.244308.779310.016299.74303.273305.346311.753314.903321.253326.667330.392320.871322.319311.947307.452308.714
us-gaap:Goodwill ████████▇▇▇▇▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1510.4311432.7871432.7871432.7871432.7871432.7871432.7871432.7871409.8221409.2761398.5011386.853236.335236.335191.371191.371191.371191.307191.307191.307145.932145.932145.932145.932141.943141.943141.943141.943140.479147.762134.242134.242134.242134.242134.242133.659133.659135.683152.08162.18162.18162.18162.18
us-gaap:IntangibleAssetsNetExcludingGoodwill █▃▃▃▃▃▄▄▄▄▄▄▁▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁365.7119.608124.892130.2136.406142.612148.818155.034161.495167.955174.415184.38943.15745.12119.78521.01722.31723.61624.91526.21525.62426.92228.2229.51819.04420.02521.00721.98822.21623.14421.77222.723.67924.65925.63826.24327.24328.38431.54532.88134.26335.64537.027
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:BusinessAcquisition,us-gaap:FiniteLivedIntangibleAssetsByMajorClass fhn:IBERIABANKCorporation,fhn:PurchasedCreditCardIntangibleAssets10.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:BusinessAcquisition,us-gaap:FiniteLivedIntangibleAssetsByMajorClass fhn:IBERIABANKCorporation,fhn:StateBankingLicenses6.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:BusinessAcquisition,us-gaap:FiniteLivedIntangibleAssetsByMajorClass fhn:IBERIABANKCorporation,us-gaap:CoreDeposits206.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset NANANA202.0174.352178.098179.028NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementBasis us-gaap:FairValueInputsLevel1,us-gaap:EstimateOfFairValueFairValueDisclosure█▃▃▂▂▂▂▁▁24.71222.69222.83322.64322.44222.41922.32622.24822.141NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementBasis us-gaap:FairValueInputsLevel3,us-gaap:EstimateOfFairValueFairValueDisclosure▂▃█▁▁▁▁▁▁291.116321.133692.716206.709203.704201.656194.358218.532218.526NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementBasis us-gaap:CarryingReportedAmountFairValueDisclosure▂▃█▁▁▁▁▁▁315.828343.825715.549229.352226.146224.075216.684240.78240.667NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementBasis us-gaap:EstimateOfFairValueFairValueDisclosure▂▃█▁▁▁▁▁▁315.828343.825715.549229.352226.146224.075216.684240.78240.667NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:TimeDepositMaturitiesYearOne NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:MinorityInterest █████████████████████████████▇▃▁▁▁▁▁▁▁▁▁▁▁▁295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.374295.257295.165295.165295.165295.165295.165295.165295.165295.165295.165295.165295.165295.165
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity █▄▄▄▄▄▄▄▄▄▄▄▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂7848.7114912.9544760.1494780.5774700.6124630.654551.094489.9494446.54254.3184277.0974285.0572588.122531.4572445.0292409.6532449.1512396.4932347.5172344.1552284.8142222.4742203.8262295.5372326.512330.722248.7062205.322137.8622250.9772304.472214.0412236.7232219.2412379.0082389.4722448.0652386.2172344.8922382.843011.7232992.0682975.777
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest █▄▄▄▄▄▄▄▄▄▄▄▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂8144.1425208.3855055.585076.0084996.0434926.0814846.5214785.384741.9314549.7494572.5284580.4882883.5512826.8882740.462705.0842744.5822691.9242642.9482639.5862580.2452517.9052499.2572590.9682621.9412626.1512544.1372500.7512433.2932546.3512599.7272509.2062531.8882514.4062674.1732684.6372743.232681.3822640.0572678.0053306.8883287.2333270.942
us-gaap:CommonStockValue █▃▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▁▁▁346.742195.224194.914194.668194.487195.299197.101199.108202.464203.127204.496204.211146.395146.336146.177146.015145.772145.012145.342149.117146.398146.263145.937146.387147.03148.217147.866147.731147.705150.347150.766152.249154.459155.506157.917160.918164.762164.812164.584164.604145.526143.021141.048
us-gaap:AdditionalPaidInCapitalCommonStock █▄▄▄▄▄▄▄▄▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▁▁▁5061.0792940.612938.672931.4512925.3092941.6962983.9483029.4253101.1023113.6123155.4073147.6131401.3591395.7971391.7771386.6361376.3191362.5281371.3971439.3031377.7311371.7121370.7111380.8091390.0811416.0121417.171416.7671413.2481416.5631461.2921488.4631517.4881528.1611560.3431601.3461641.8781638.4231636.6231630.211344.3071296.4841251.776
us-gaap:RetainedEarningsAccumulatedDeficit █▆▆▇▆▆▆▅▅▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▂▂▁▁▁▂▂▁▁▁▁▁▂▂2110.991671.6291667.1051798.4421725.8461660.521595.5681542.4081484.9591254.0691211.6551160.4341177.1261131.1621061.4091029.032992.264945.663905.595874.303841.737797.123760.713860.963826.61792.978728.165695.207657.676777.108748.427719.672681.46658.157785.361757.364724.977691.49674.064631.712737.014767.769809.624
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▇▇▇▅▅▄▃▂▁▂▂▃▅▅▅▅▆▇▆▅▆▆▆▆▇▇▇▇▆▆▇▇▇▇▇▇██▇▇▇█▇-140.47-134.798-136.164-239.608-240.654-262.489-321.151-376.616-437.649-412.114-390.085-322.825-232.384-237.462-249.958-247.654-160.828-152.334-170.441-214.192-176.676-188.248-169.159-188.246-132.835-122.111-140.119-150.009-176.391-188.665-151.639-146.343-116.684-122.583-124.613-130.156-83.552-108.508-130.379-127.546-109.958-105.922-113.291
us-gaap:MinorityInterest █████████████████████████████▇▃▁▁▁▁▁▁▁▁▁▁▁▁295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.431295.374295.257295.165295.165295.165295.165295.165295.165295.165295.165295.165295.165295.165295.165
us-gaap:StockIssuedDuringPeriodValueNewIssues NA144.665NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock us-gaap:SeriesFPreferredStockNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock,us-gaap:SubsequentEventType us-gaap:SeriesFPreferredStock,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:PreferredStockIncludingAdditionalPaidInCapitalNA144.665NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁▄11.5883.7187.281NA5.8225.2245.4325.7066.0125.5475.9065.6565.1314.8115.0295.1584.5823.8553.9413.8443.4783.453.0242.9962.6682.9272.763.6924.1614.0714.223.8034.3144.2263.8584.6594.3672.6032.5441.76.1712.4411.675
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders █▁▁2.9772.8512.852NA2.8832.8522.822.912.8832.8522.822.912.8832.8522.822.8792.8832.8522.8512.8482.9772.8512.7582.982.8752.8592.8132.9342.8752.8432.8132.9012.8752.8442.8442.8712.8752.8442.844-19.9652.8752.8442.844
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆█▁▆▆▆▆▆▅▆▅▆▆▄▅▇▅▆▅▆▆▆▅▆▆▅▆▆▅▅▅▆▇▅▅▆▆▅▅▇▇▄▅230.058897.05-1400.005113.722369.286224.797122.489365.15-174.728248.261-204.378288.065135.025-369.25-71.198440.695-238.28189.722-111.018154.532101.539252.678-141.586119.159200.06452.359333.152317.16226.00335.91952.289259.113423.69-148.965-162.28680.013261.406-72.646-224.8633.401651.835-394.523-122.639
us-gaap:NetCashProvidedByUsedInInvestingActivities █▁▁▅▃▄▅▄▇▄▇▄▅▆▄▄▄▅▅▄▅▅▆▃▅▅▅▄▇▅▆▅▅▅▅▅▅▅▇▄▅▆▇1777.619-2744.314-2481.94355.404-1346.683-1005.833-92.73-865.195916.713-839.7841268.638-1069.657-225.065512.942-554.262-917.883-909.982-372.428-268.259-941.815-58.671-99.893580.365-1357.452-22.285-238.106131.164-801.711968.58322.802573.279-75.368-231.17654.294-162.915-89.47-409.783-215.132881.374-521.599-177.611509.703811.734
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▅█▂▅▄▃▃▂▄▁▄▃▂▄▃▄▃▃▄▃▃▂▅▂▃▃▃▁▃▂▃▃▃▃▃▃▃▂▂▂▃▂-1359.1111736.7623745.104-397.9131223.372817.871-222.214462.16-775.795635.512-1083.2751145.88398.715-300.619823.673357.4311099.864406.487430.383704.468-97.276-141.892-352.7911399.967-361.17206.768-220.124287.642-1006.666-63.521-690.13436.851-163.283-13.203461.255-221.583296.256334.629-560.783-277.178-507.84149.62-804.723
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▂▂▁▅▃▁▃▃648.566-110.502-136.844-228.787245.97536.835-192.455-37.885-33.81NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▁▂▂▁▃▅▃▃▆▄▄█▄▂▃▄▅▄▃-43.916-19.928-18.6-54.7458.15953.7057.238-2.75768.28417.72120.309121.54816.315-23.7826.9211.50433.73430.0734.293NANANANANANANANANANANANANANANANA17.147-5.337NANA139.856-40.506NANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆█▁▆▆▆▆▆▅▆▅▆▆▄▅▇▅▆▅▆▆▆▅▆▆▅▆▆▅▅▅▆▇▅▅▆▆▅▅▇▇▄▅230.058897.05-1400.005113.722369.286224.797122.489365.15-174.728248.261-204.378288.065135.025-369.25-71.198440.695-238.28189.722-111.018154.532101.539252.678-141.586119.159200.06452.359333.152317.16226.00335.91952.289259.113423.69-148.965-162.28680.013261.406-72.646-224.8633.401651.835-394.523-122.639
us-gaap:NetIncomeLoss █▃▂▄▃▃▃▃▅▃▃▂▃▃▃▃▃▃▃▃▃▃▂▃▃▃▃▃▁▃▃▃▃▁▃▃▃▃▃▂▃▃▂536.06153.81413.62118.373111.06110.89100.58597.895271.83383.1492.174-51.29168.88692.35255.56854.84464.75258.08849.36248.58160.35552.106-75.16347.91146.87478.32146.41750.954-105.90142.39342.15640.68125.807-124.77430.52734.94136.10519.99240.15914.46830.83517.634-12.737
us-gaap:ProfitLoss █▃▂▄▃▃▃▃▅▃▃▂▃▃▃▃▃▃▃▃▃▃▂▃▃▃▃▃▁▃▃▃▃▁▃▃▃▃▃▂▃▃▂539.03856.66516.472121.283113.943113.742103.405100.805274.71685.99294.994-48.38171.76995.20458.38857.72367.63560.9452.21351.42963.33254.957-72.40550.89149.74981.1849.2353.888-103.02645.23644.96943.58228.682-121.9333.37137.81238.9822.83643.00317.30733.7120.478-9.893
us-gaap:ShareBasedCompensation █▂▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▃▃▃▃▃▃▃▃▃▂▂▁▄▂▁11.5883.7187.2816.2525.8225.2245.4325.7356.0125.5475.9065.6565.1314.8115.0295.1584.5823.8553.9413.8443.4783.453.0242.9962.6682.9272.763.6924.1614.0714.223.8034.3144.2263.8584.6594.3672.6032.5441.76.1712.4411.675
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities █▁▁▅▃▄▅▄▇▄▇▄▅▆▄▄▄▅▅▄▅▅▆▃▅▅▅▄▇▅▆▅▅▅▅▅▅▅▇▄▅▆▇1777.619-2744.314-2481.94355.404-1346.683-1005.833-92.73-865.195916.713-839.7841268.638-1069.657-225.065512.942-554.262-917.883-909.982-372.428-268.259-941.815-58.671-99.893580.365-1357.452-22.285-238.106131.164-801.711968.58322.802573.279-75.368-231.17654.294-162.915-89.47-409.783-215.132881.374-521.599-177.611509.703811.734
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▅█▂▅▄▃▃▂▄▁▄▃▂▄▃▄▃▃▄▃▃▂▅▂▃▃▃▁▃▂▃▃▃▃▃▃▃▂▂▂▃▂-1359.1111736.7623745.104-397.9131223.372817.871-222.214462.16-775.795635.512-1083.2751145.88398.715-300.619823.673357.4311099.864406.487430.383704.468-97.276-141.892-352.7911399.967-361.17206.768-220.124287.642-1006.666-63.521-690.13436.851-163.283-13.203461.255-221.583296.256334.629-560.783-277.178-507.84149.62-804.723
us-gaap:PaymentsOfDividendsCommonStock ██▇▇▇█▇▇▇▇▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁47.01747.84844.07743.62143.74444.95238.75938.95339.00139.39921.35321.05421.04121.34416.46516.3616.18416.61314.34713.96913.95814.27111.74911.70711.78111.98311.89511.76211.97312.0062.4882.4622.4672.5622.5752.6112.621NANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▁▁▁▁▃▆▆█▃▁▁▁▁▁▁▁▂▂█▂▁▁▂▂▃▁▁▁▂▅▄▄▂▄▅▅▁▁▁▁▁0.7521.4792.0640.77228.38352.22253.43680.77119.2072.6062.1840.2690.3322.9372.0160.5957.10313.93575.76312.5960.0213.26416.76714.67624.0322.522.3510.13810.23948.66132.49534.85514.95637.32246.62444.1910.0330.4160.4710.0050.859NANA
  2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity,us-gaap:Range,us-gaap:DebtInstrument,us-gaap:LongtermDebtType fhn:Fhn,srt:Maximum,fhn:NewMarketTaxCreditInvestments,us-gaap:NotesPayableOtherPayablesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage dei:LegalEntity,us-gaap:Range,us-gaap:DebtInstrument,us-gaap:LongtermDebtType fhn:Fhn,srt:Minimum,fhn:NewMarketTaxCreditInvestments,us-gaap:NotesPayableOtherPayablesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value344345347346195194194194195197199202203204204146146146146145145145149146146145146147148147147147150150152154155157160164164164164145143141138
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.40.40.40.40.50.50.50.50.50.50.50.50.50.50.50.50.50.50.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.70.70.70.60.50.50.5

Shares Outstanding

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value550552555554312311311311312315318
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PreferredStockIncludingAdditionalPaidInCapital


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value262626262.51.01.01.01.01.01.0
Percentage of SharesOutstanding4.94.84.74.70.80.30.30.30.30.30.3

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2020-07-012020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value243312311311311312315318323325327326234234233233233232232238234234233234235237236236236240241243247248252257263263263263237236236236
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStock


Common
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value555311311311312315318323325327326233238234236243257263221205
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PreferredStockIncludingAdditionalPaidInCapital


Common
Period End2020-12-312019-12-312018-12-312017-12-31
Value261.01.01.0
Percentage of CommonStockSharesOutstanding4.70.30.30.3

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value556557550312313313315319327328330236236236234233236235234232236237237236240242248249255262262265238240234
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value550552549312311311314317324325326233233233231231234233232232235235235236239240246249253261261261234234234
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

fhn:OtherEquityAwards


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302015-03-312013-09-302012-06-302011-09-302011-06-302011-03-312010-09-302010-06-30
Value1.3792.7846.8244.3894.2642.0942.4031.9221.6050.5650.3071.0020.4822.52.83.41.10.40.10.30.3
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeStockOption


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value1.5163.8278.3065.1343.0311.8832.7732.6132.2512.4462.412.5952.7213.67.94.35.64.79.48.68.810.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount109.9137.5121.7117.071.189.9115.4136.0140.2432.9785.0259.0564.50.0316.00.00.00.0335.70.00.00.0

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
Value0.540.410.40.950.170.040.380.350.350.310.30.830.250.28-0.250.290.390.230.230.270.240.20.20.250.22-0.330.20.190.330.190.21-0.450.170.170.160.1-0.50.120.130.140.080.15-0.210.070.01-0.12
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
Value0.530.40.390.950.170.040.380.350.350.310.30.830.250.27-0.250.280.380.230.230.270.240.20.20.250.22-0.330.20.190.320.190.21-0.450.170.170.160.1-0.50.120.130.140.080.15-0.210.070.01-0.12
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

Tier One Risk Based Capital To Risk Weighted Assets

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets

fhn:Fhn


Tier
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value10.740.10150.1080.09830.11170.11790.14460.13870.1310.1423
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:FirstHorizonBank


Tier
Period End2020-12-312019-12-312018-12-31
Value10.930.10180.1072
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets101.8100.399.3

Capital To Risk Weighted Assets

us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity

us-gaap:CapitalToRiskWeightedAssets

fhn:Fhn


Capital
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value12.570.11220.11940.1110.12240.13010.16180.16230.15940.1799
Percentage of CapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:FirstHorizonBank


Capital
Period End2020-12-312019-12-312018-12-31
Value12.520.10770.1132
Percentage of CapitalToRiskWeightedAssets99.696.094.8

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value346132241530551171191321691561582466125-84.1867310453-31.982567693117133-56.076-7.536965677-93.6275.367361131-122.74336-11.662614137
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.088.715.930.929.532.641.139.039.662.615.86.9-29.329.844.624.3-14.527.238.648.15.939.217.7-31.5-4.220.254.332.443.2-51.32.919.85.615.8-61.117.9-5.629.320.218.0

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value3.03.03.322.9772.8512.8522.912.8832.8522.822.912.8832.8522.822.912.8832.8522.822.8792.8832.8522.8512.8482.9772.8512.7582.982.8752.8592.8132.9342.8752.8432.8132.9012.8752.8442.8442.8712.8752.8442.844
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.00.50.80.80.70.70.70.70.70.70.70.81.01.21.21.31.31.41.41.51.51.61.51.51.71.61.61.61.61.61.51.51.51.41.41.41.41.41.41.4

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
Value349135244533581191221351721581612496327-81.2767610756-29.103597995137435-53.318-4.5239995980-90.7528.21391334-119.89938-8.791634440-0.282927-8.976
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 InterestAndDividendIncomeOperating0.00.00.089.216.731.730.333.341.839.740.363.316.57.7-28.331.045.825.6-13.228.640.049.67.440.819.2-29.9-2.521.855.934.144.8-49.74.521.37.117.2-59.719.3-4.230.721.619.3-0.113.312.6-4.1

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Comprehensive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value38-101.0-5.6721.366103215855-25.535-22.029-67.049
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest10.9-74.8-1.12.486.316.134.034.9-10.2-34.4-239.9
Percentage of InterestAndDividendIncomeOperating0.00.0-0.90.427.35.414.213.8-6.5-5.7-18.5
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.03.02.9772.8512.8522.8832.8522.822.912.8832.8522.822.912.8832.8522.822.8792.8832.8522.8512.8482.9772.8512.7582.982.8752.8592.8132.9342.8752.8432.8132.9012.8752.8442.8442.8712.8752.8442.8442.8392.8752.8442.844
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest0.92.20.64.92.42.11.71.81.81.24.510.1-3.63.82.65.0-9.94.93.63.020.54.07.9-5.2-65.97.42.94.83.7-3.234.67.120.88.3-2.47.3-32.74.56.47.1-1013.99.710.2-31.7
Percentage of InterestAndDividendIncomeOperating0.00.00.50.80.80.70.70.70.70.70.70.81.01.21.21.31.31.41.41.51.51.61.51.51.71.61.61.61.61.61.51.51.51.41.41.41.41.41.41.41.31.31.31.3
Percentage of InterestAndDividendIncomeOperating us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarningsUnappropriated


Comprehensive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value30823353653131111101002718392
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest88.3172.6100.592.711.481.864.363.3109.1130.0329.8
Percentage of InterestAndDividendIncomeOperating0.00.089.615.53.627.326.925.169.121.425.4
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarningsUnappropriated0.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3993075416921157149148130124358105124
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.090.520.05.638.936.736.032.631.191.127.334.4

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value399307301541692115714914813012435810512425851128581969076547276-94.66663651136720-134.24360623033-210.5954438421454113718-19.334
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.090.520.05.638.936.736.032.631.191.127.334.48.934.447.839.037.246.546.139.528.939.340.9-53.235.236.463.939.111.2-73.532.733.415.616.9-104.922.018.120.47.226.15.416.78.5-8.8

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:StatementBusinessSegments

fhn:FixedIncome


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value1771974265543252615169.9022.8362.865-0.7633.5246.0038.6766.1833.2885.86314181111-5.0199.084115.9634.93150
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments44.464.2141.710.263.0120.416.610.210.87.62.30.8-0.72.823.410.25.53.87.215.520.214.521.0-6.911.9-11.89.47.644.1
Percentage of InterestAndDividendIncomeOperating0.00.00.09.212.66.86.53.83.92.50.70.7-0.21.02.13.52.61.52.77.29.35.76.1-2.74.96.33.32.828.2
Percentage of InterestAndDividendIncomeOperating fhn:FixedIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:NonStrategic


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3.2831.0192.647.6527.80417108.272158.7729.189-23.7139.419256.4564.7647.0523515-4.6531324-154.921127.8431119-34.274-194.5174.086-17.086-25.821-36.632-275.426-44.321-56.665-97.913-11.278-25.137-77.792-43.251-34.14
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments0.61.512.44.95.211.87.76.64.28.37.4-92.611.022.97.65.87.338.720.9-8.619.031.5163.720.212.010.229.1-170.7144.96.8-27.4-84.2-108.3130.8-99.9-149.0-230.3-76.2-46.4-662.1-115.8-182.7
Percentage of InterestAndDividendIncomeOperating0.50.30.71.91.94.32.52.13.92.32.5-8.23.811.03.02.23.417.88.3-2.57.512.9-87.07.14.46.511.4-19.1-106.52.2-9.2-13.2-18.3-137.2-22.0-27.0-47.0-5.5-12.1-35.8-19.4-15.5
Percentage of InterestAndDividendIncomeOperating fhn:NonStrategic0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:RegionalBanking


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
Value36128661155118251821741671451551661681671261141131019810264717885707378797255687567787668647490937265635130
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments90.593.220.328.7170.6120.3116.2116.5113.2111.4124.746.5159.8133.7493.8134.3101.2118.4120.5106.270.893.5145.2118.592.3-78.1124.0122.164.382.4343.4-56.5111.3125.3248.3203.5-30.8167.9239.1221.0491.8121.3538.0138.4165.3
Percentage of InterestAndDividendIncomeOperating0.00.00.026.034.26.845.242.840.736.338.842.343.546.044.046.248.446.344.849.332.636.941.946.637.841.543.644.541.132.238.541.536.541.938.834.332.337.043.445.135.231.629.123.214.0
Percentage of InterestAndDividendIncomeOperating fhn:RegionalBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Corporate


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-139.0-176.0-179.583327-93.768-32.526-59.282-47.859-53.1-34.852-41.934173-71.174-54.827-83.146-47.402-33.34-25.504-27.355-27.902-27.013-22.128-31.191-21.999-27.245-24.868-33.863-27.167-21.106-15.476-25.387-25.359-23.222-17.449-38.83-19.374-20.856-18.42-23.72417
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-34.8-57.3-59.660.5-135.0-153.1-37.7-32.0-35.8-26.7-33.648.5-67.3-43.9-324.7-55.5-29.6-29.8-33.5-29.0-29.7-28.9-57.6-30.5-35.626.3-53.6-41.7-18.6-22.8-126.418.9-38.5-28.0-126.6-57.39.9-41.5-62.441.7
Percentage of InterestAndDividendIncomeOperating0.00.00.054.8-27.1-8.6-14.7-11.7-12.9-8.7-10.544.2-18.4-15.1-28.9-19.1-14.2-11.7-12.4-13.5-13.7-11.4-16.6-12.0-14.6-14.0-18.9-15.2-11.9-8.9-14.2-13.9-12.6-9.4-19.8-9.7-10.4-9.1-11.38.5
Percentage of InterestAndDividendIncomeOperating us-gaap:Corporate0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value8871562.21124.767353534272483192973131727242830242.7158.89721-22.26112153218-33.813-31.0941517-12.9145.26-88.17810-0.5268.367-4.24212-4.5373.29-1.659-16.518
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 InterestAndDividendIncomeOperating0.00.00.00.43.71.38.98.88.46.86.021.35.18.225.75.57.312.410.913.815.212.51.44.811.5-12.56.88.618.110.7-18.9-17.08.29.5-6.62.6-43.95.2-0.34.0-2.15.8-2.11.5-0.8-7.5

us-gaap:IncomeTaxExpenseBenefit us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-30
Value1.0-2.0-0.756-0.805-1.0-1.0-0.827-0.69-1.121-0.701-0.676-1.014-0.872-0.87
Percentage of IncomeTaxExpenseBenefit1.1-2.8-1.3-36.4-7.8-21.0-2.3-1.9-4.7-0.8-3.4-1.4-6.4-5.0
Percentage of InterestAndDividendIncomeOperating0.00.00.0-0.1-0.3-0.3-0.2-0.2-0.3-0.2-0.2-0.4-0.4-0.4
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.0-1.00.7690.6790.530.03-0.108-0.324-0.438-0.476-0.349-0.253-0.1520.0510.3390.398
Percentage of IncomeTaxExpenseBenefit2.3-1.41.430.74.10.6-0.3-0.9-1.3-1.8-1.5-0.3-0.80.20.52.9
Percentage of InterestAndDividendIncomeOperating0.00.00.00.10.20.0-0.0-0.1-0.1-0.1-0.1-0.1-0.00.00.10.2
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Income
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-0.68-0.320.00.00.0-0.0660.00.00.00.00.0130.0130.00.155
Percentage of IncomeTaxExpenseBenefit-1.2-14.50.00.00.0-0.20.00.00.00.00.00.00.00.9
Percentage of InterestAndDividendIncomeOperating0.0-0.10.00.00.0-0.00.00.00.00.00.00.00.00.1
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementBusinessSegments

fhn:FixedIncome


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value434710313106.0996.3033.6563.7812.2830.5720.532-0.4140.7421.972.9791.9461.0241.875.4596.7553.8744.002-2.3593.1714.1432.0591.69619
Percentage of IncomeTaxExpenseBenefit48.966.2184.5608.983.6127.917.510.211.08.42.40.6-2.12.52.721.911.33.87.819.122.516.0147.4-26.514.7-18.616.811.059.5
Percentage of InterestAndDividendIncomeOperating0.00.00.02.23.11.61.60.90.90.60.10.1-0.10.20.71.20.80.50.92.63.42.02.1-1.31.72.31.10.910.8
Percentage of InterestAndDividendIncomeOperating fhn:FixedIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:NonStrategic


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.7950.250.6521.8911.9284.3322.4852.0443.7632.1682.271-9.0773.6059.8822.51.8452.732136.193-1.8055.2889.305-41.1694.9153.0254.4387.686-41.901-46.1321.572-6.574-9.941-14.102-106.039-17.064-21.815-37.697-4.343-9.678-29.312-16.297-12.864
Percentage of IncomeTaxExpenseBenefit36.02.013.75.35.412.69.28.54.511.07.6-12.326.557.39.27.79.645.525.5-66.559.443.1184.940.019.613.841.2123.9148.410.5-37.177.0-268.1120.3-161.44147.3-450.5102.4-79.9646.1-495.3775.4
Percentage of InterestAndDividendIncomeOperating0.10.10.20.50.51.10.60.51.00.60.6-3.21.54.21.10.81.36.93.2-1.02.95.0-23.12.71.72.54.4-23.4-25.30.9-3.5-5.1-7.0-52.8-8.5-10.4-18.1-2.1-4.7-13.5-7.3-5.8
Percentage of InterestAndDividendIncomeOperating fhn:NonStrategic0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:RegionalBanking


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
Value85661134264.388434139333639393943414136353722252830242627282519242724282724232733342624221811
Percentage of IncomeTaxExpenseBenefit96.693.020.51572.1210.992.0119.6116.7114.6124.5151.946.6201.2131.559.5303.5238.4135.4147.4129.974.8104.91033.0346.3115.8-118.5227.1184.380.4106.6-72.8-88.0160.3159.9-214.4474.5-26.5257.3-6370.0415.2-628.9198.6-504.6572.1-675.9
Percentage of InterestAndDividendIncomeOperating0.00.00.05.87.81.210.610.29.68.49.19.910.210.815.316.617.516.716.117.911.413.114.916.813.414.815.515.914.611.513.815.013.115.214.112.411.613.516.016.712.911.610.58.45.1
Percentage of InterestAndDividendIncomeOperating fhn:RegionalBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Corporate


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-40.0-42.0-57.31-46.785-25.097-6.372-15.243-11.55-13.15-11.403-15.10940-21.691-12.44437-34.255-35.711-13.093-15.091-16.739-12.84-11.257-27.528-24.841-15.882-11.64-22.582-17.723-17.27-11.766-20.556-16.024-15.201-11.171-37.843-13.496-13.388-11.934-22.6860.34
Percentage of IncomeTaxExpenseBenefit-45.5-59.2-101.9-2117.0-196.4-133.7-42.4-32.3-38.2-42.1-62.848.3-110.1-41.650.1-251.9-207.0-48.4-62.9-58.6-42.8-46.4-1013.9-279.2-73.652.3-183.9-114.9-53.7-63.160.851.5-101.3-63.0293.0-256.615.2-112.94312.94.1
Percentage of InterestAndDividendIncomeOperating0.00.00.0-7.8-7.2-1.7-3.8-2.8-3.2-2.8-3.810.3-5.6-3.412.9-13.8-15.2-6.0-6.9-8.1-6.5-5.8-14.7-13.5-8.5-6.5-12.6-9.9-9.7-6.8-11.5-8.8-8.3-6.0-19.3-6.7-6.7-5.9-10.80.2
Percentage of InterestAndDividendIncomeOperating us-gaap:Corporate0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid

us-gaap:IncomeTaxesPaid

us-gaap:IncomeTaxesPaid


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1712.015831.2465.243717131.008300.2828.4314.0661616200.9510.0290.246100.6170.0940.0374.305102322256.340.3930.2573.2991.488-1.4480.23
Percentage of IncomeTaxesPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.013.90.41.49.34.43.40.37.50.12.21.15.76.68.90.40.00.15.40.30.10.02.35.913.012.614.43.70.20.11.80.8-0.70.1

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
Value45445365417592106108106988776624538342924212121202020212019202121232325252728293032333435373839
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 InterestAndDividendIncomeOperating0.00.00.011.011.920.022.926.226.326.524.622.319.817.115.815.414.713.311.110.510.711.111.211.010.911.911.410.811.612.212.213.013.013.413.013.514.014.714.715.416.416.816.116.617.417.8

Interest Expense Long Term Debt

us-gaap:InterestExpenseLongTermDebt

us-gaap:InterestExpenseLongTermDebt


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
Value18182021147.9211013141413131311109.7628.3487.7447.3517.1656.9817.6069.7439.3149.6669.6649.1468.4458.4168.5638.9029.0789.1469.1959.4889.6899.82210109.0819.2749.9748.3928.4567.4547.86
Percentage of InterestExpenseLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.03.64.12.12.63.43.63.63.53.63.43.33.53.93.53.53.33.53.53.95.25.15.25.45.14.74.74.95.05.05.04.94.84.84.95.14.94.44.54.83.93.83.43.6

Interest Income Expense Net

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet


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
Value497508521532305302311300303294302305310301242209200189195185176172166163166156159159156152157158160161170173172171178176172172182186182180
Percentage of InterestIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.089.088.180.077.173.873.773.575.477.780.282.984.284.685.386.788.989.589.388.988.889.089.188.188.689.288.487.887.887.087.086.687.086.586.085.385.384.683.683.283.983.482.682.2

us-gaap:InterestIncomeExpenseNet us-gaap:StatementBusinessSegments

fhn:FixedIncome


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value1531595461113107.2335.3096.1717.3229.0299.0489.1748.4635.9015.9794.9791.1512.5412.4123.1472.6643.9063.0084.2974.3193.6752.952.587
Percentage of InterestIncomeExpenseNet30.831.3104.92.24.43.62.31.82.02.53.03.03.02.82.42.82.50.61.31.31.81.52.31.82.62.82.31.81.7
Percentage of InterestAndDividendIncomeOperating0.00.00.01.93.92.91.81.31.51.82.32.32.42.32.12.42.10.51.21.21.61.42.11.62.32.42.01.61.5
Percentage of InterestAndDividendIncomeOperating fhn:FixedIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:NonStrategic


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value6.0135.5435.1196.1766.2227.1117.8829.2019.6196.897.2017.778.5098.729.2689.7941010111214131419151615171618202123232427302932343837
Percentage of InterestIncomeExpenseNet1.11.81.72.02.12.32.73.03.12.22.43.24.14.34.95.05.76.06.77.48.88.39.112.49.610.210.511.210.611.612.512.613.613.914.215.117.417.219.018.720.520.8
Percentage of InterestAndDividendIncomeOperating1.01.61.41.51.51.72.02.32.41.82.02.73.43.74.24.55.15.45.96.67.87.48.011.08.59.09.29.89.310.110.810.911.811.912.112.914.714.415.815.717.117.2
Percentage of InterestAndDividendIncomeOperating fhn:NonStrategic0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:RegionalBanking


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value44342673583349300310302297287299302308298244209201193200190178172169165165154157153148142149148147145153150147146150140137134144142138
Percentage of InterestIncomeExpenseNet89.183.914.1109.7114.599.199.8100.697.997.599.198.999.399.2100.999.8100.6101.9102.6102.9101.2100.1101.8101.099.698.499.196.494.893.295.193.592.189.989.886.785.285.284.079.779.378.079.376.475.9
Percentage of InterestAndDividendIncomeOperating0.00.00.097.6100.979.376.974.272.271.774.776.879.682.284.984.485.888.491.392.090.389.090.490.088.786.787.886.083.881.883.581.380.177.878.075.073.372.771.767.566.364.966.563.762.7
Percentage of InterestAndDividendIncomeOperating fhn:RegionalBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Corporate


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-99.0-77.0-82.153-69.187-63.493-13.359-12.712-13.225-7.0-7.853-15.489-15.415-14.002-13.19-15.855-13.99-14.995-14.1-17.503-18.195-15.85-14.374-19.23-19.037-17.376-16.084-21.968-12.523-10.522-9.113-14.385-10.333-9.963-7.717-8.204-5.294-5.538-5.309-4.371-1.08
Percentage of InterestIncomeExpenseNet-19.9-15.2-15.8-13.0-20.8-4.4-4.1-4.4-2.3-2.7-5.1-5.0-4.5-4.4-6.5-6.7-7.5-7.4-9.0-9.8-9.0-8.4-11.5-11.6-10.4-10.3-13.8-7.8-6.7-6.0-9.2-6.5-6.2-4.8-4.8-3.1-3.2-3.1-2.4-0.6
Percentage of InterestAndDividendIncomeOperating0.00.00.0-11.6-18.3-3.5-3.1-3.2-1.7-2.0-3.9-3.9-3.6-3.6-5.5-5.6-6.4-6.4-8.0-8.8-8.0-7.4-10.2-10.4-9.3-9.0-12.2-7.0-5.9-5.2-8.0-5.7-5.4-4.1-4.2-2.6-2.8-2.6-2.1-0.5
Percentage of InterestAndDividendIncomeOperating us-gaap:Corporate0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Income Operating

us-gaap:InterestIncomeOperating

us-gaap:InterestIncomeOperating


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value542552346378
Percentage of InterestIncomeOperating100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.099.899.9

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5939795641831071021118899748251473040212915361131103513281130113115419.285391344134520482439354435
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.09.412.022.226.625.227.122.224.818.921.214.216.712.317.29.813.27.718.35.816.65.919.07.415.86.217.06.617.78.522.35.020.16.822.06.821.69.823.511.918.116.020.316.2

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3082332415365313118111110100972718392-51.29168925554645849486052-75.1634746784650-105.90142424025-124.7743034361940143017-12.737
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.089.615.53.629.327.326.925.124.469.121.425.4-17.827.839.225.424.931.329.425.525.932.927.9-42.226.726.244.226.728.5-58.023.022.620.712.9-62.215.116.717.39.719.36.713.88.0-5.8

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
Value3.03.03.322.9772.8512.8522.912.8832.8522.822.912.8832.8522.822.912.8832.8522.822.8792.8832.8522.8512.8482.9772.8512.7582.982.8752.8592.8132.9342.8752.8432.8132.9012.8752.8442.8442.8712.8752.8442.8442.8392.8752.8442.844
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 InterestAndDividendIncomeOperating0.00.00.00.50.80.80.70.70.70.70.70.70.70.81.01.21.21.31.31.41.41.51.51.61.51.51.71.61.61.61.61.61.51.51.51.41.41.41.41.41.41.41.31.31.31.3

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value295225234523521211610910999962708190-52.84167905453635647475850-76.7134645764449-107.45140404025-124.7743034361940-48.686152.696-27.655
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.087.515.13.228.926.926.524.724.068.721.024.9-18.427.138.624.724.230.528.624.725.132.027.0-43.125.825.343.325.827.6-58.822.222.020.712.9-62.215.116.717.39.719.3-22.47.11.2-12.6

Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value-2.0-2.00.013
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.00.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.03.4

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
Value38-101.0-0.138-5.6721.3661031.04621585561-25.535-22.029-67.049-32.8955.07812-2.304-86.826-8.4941843-37.51611-19.08919-55.411-10.724189.892612-37.026-5.296-29.6595.8982.0315.543-46.60324
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 InterestAndDividendIncomeOperating0.00.00.0-0.90.427.30.35.414.213.815.2-6.5-5.7-18.5-11.42.05.3-1.1-39.5-4.19.222.6-20.06.3-10.210.7-30.9-6.010.25.714.76.7-20.1-2.8-15.12.91.02.8-22.212.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302017-09-302017-06-302016-09-302016-06-30
Value2.04.02.3792.02.02.1021.8951.4030.9630.844
Percentage of OtherComprehensiveIncomeLossNetOfTax5.3-4.0-41.9146.41.99.637.311.2-11.34.7
Percentage of InterestAndDividendIncomeOperating0.00.00.40.60.50.50.80.60.50.4
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value-2.0-2.0-2.9330.0132.844
Percentage of OtherComprehensiveIncomeLossNetOfTax-5.32.051.70.012.613.0
Percentage of InterestAndDividendIncomeOperating0.00.0-0.50.03.40.7
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest0.00.00.00.00.00.0

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302017-09-302017-06-302016-09-302016-06-30
Value38-103.0-5.118-1.089163.9178.938-7.88716
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0102.090.2-73.286.077.377.171.592.988.6
Percentage of InterestAndDividendIncomeOperating0.00.0-0.9-0.323.54.11.63.8-3.88.1
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value38-101.0-5.6721.366103215855-25.535-22.029-67.049
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.0-0.90.427.35.414.213.8-6.5-5.7-18.5
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.0

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
Value31123624453956161211131131031002748594-48.38171955857676052516354-72.4055049814953-103.02645444328-121.933337382243173320-9.893
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 InterestAndDividendIncomeOperating0.00.00.090.116.34.430.028.027.625.825.169.822.226.1-16.828.940.526.726.332.730.927.027.434.529.4-40.728.427.845.828.430.1-56.424.624.122.214.3-60.716.618.018.711.020.78.015.19.3-4.5

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value-4.0-3.0-2.824-1.395-1.0-2.0-2.852-3.091-17.5182.906-3.6790.761
Percentage of ProfitLoss-1.3-1.3-1.2-0.3-1.8-12.1-2.4-2.7-17.41.17.61.1
Percentage of InterestAndDividendIncomeOperating0.00.00.0-0.2-0.3-0.5-0.7-0.8-4.40.7-1.30.3
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value-6.0-2.0-2.974-2.52-2.0-2.0-2.52-2.102-14.3752.135-9.5991.405
Percentage of ProfitLoss-1.9-0.8-1.2-0.5-3.5-12.1-2.1-1.8-14.30.819.82.0
Percentage of InterestAndDividendIncomeOperating0.00.00.0-0.4-0.6-0.5-0.6-0.5-3.60.5-3.30.6
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value2.0-1.02.1472.1282.0-0.332-0.989-3.2210.7715.344-0.643
Percentage of ProfitLoss0.6-0.40.90.43.5-0.3-0.9-3.20.3-11.0-0.9
Percentage of InterestAndDividendIncomeOperating0.00.00.00.40.6-0.1-0.2-0.80.21.9-0.3
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Profit
Period End2020-12-312020-09-302019-12-312018-12-312018-09-302017-12-312017-09-30
Value-1.997-1.0030.00.0780.00.576-0.001
Percentage of ProfitLoss-0.8-0.20.00.10.0-1.2-0.0
Percentage of InterestAndDividendIncomeOperating0.0-0.20.00.00.00.2-0.0
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementBusinessSegments

fhn:FixedIncome


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value1341503224133191911127.6192.2642.333-0.3492.7824.0335.6974.2372.2643.9939.451117.2447.363-2.665.9136.9993.9043.23530
Percentage of ProfitLoss43.163.6131.97.758.3118.216.310.210.87.42.20.8-0.42.9-8.37.94.53.96.914.019.013.914.3-4.210.8-9.77.76.538.1
Percentage of InterestAndDividendIncomeOperating0.00.00.06.99.55.14.92.93.01.90.60.6-0.10.81.42.31.81.01.84.65.93.73.9-1.43.23.92.21.817.4
Percentage of InterestAndDividendIncomeOperating fhn:FixedIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:NonStrategic


Profit
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.4880.7691.9885.7615.876137.5716.228116.6046.918-14.6365.814153.9562.9194.32219.79-2.8488.414-113.7527.8274.8187.071127.621-148.2622.515-10.082-15.892-22.422-168.9-27.692-35.601-55.388-3.147-14.588-51.915-27.312-21.147
Percentage of ProfitLoss0.51.412.14.85.211.67.36.24.27.77.330.38.116.76.85.16.435.418.8-5.513.326.9157.115.49.78.724.514.1143.95.6-22.4-36.5-78.2138.5-83.0-94.2-142.1-13.8-33.9-300.0-81.0-103.3
Percentage of InterestAndDividendIncomeOperating0.40.20.51.41.43.21.91.62.91.71.9-5.12.36.81.81.32.110.95.1-1.54.67.9-63.94.42.74.06.94.3-81.21.4-5.4-8.1-11.2-84.1-13.7-17.0-26.6-1.5-7.0-23.9-12.2-9.6
Percentage of InterestAndDividendIncomeOperating fhn:NonStrategic0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:RegionalBanking


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value27622049120912113913212811111912712912782737264636541465054454750514736444843494843414757594641403219
Percentage of ProfitLoss88.793.220.222.4161.5128.5115.2116.5112.8108.0118.246.4150.3134.4-170.4102.376.3110.6109.396.168.888.298.386.483.0-65.799.1102.858.073.382.3-47.095.1110.4111.3153.1-34.0141.8151.9151.9202.096.9232.997.696.1
Percentage of InterestAndDividendIncomeOperating0.00.00.020.226.45.634.632.631.127.929.732.433.335.128.729.630.929.528.731.421.323.827.029.824.426.728.128.626.520.824.826.523.426.624.721.920.623.527.428.422.320.118.614.78.9
Percentage of InterestAndDividendIncomeOperating fhn:RegionalBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Corporate


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-99.0-134.0-122.273374-68.671-26.154-44.039-36.309-39.95-23.449-26.825133-49.483-42.383-120.243-13.1472.371-12.411-12.264-11.163-14.173-10.871-3.6632.842-11.363-13.228-11.281-9.444-3.836-3.71-4.831-9.335-8.021-6.278-0.987-5.878-7.468-6.486-1.03817
Percentage of ProfitLoss-31.8-56.8-49.969.5-121.2-158.8-36.3-31.9-35.1-22.7-26.648.5-57.5-44.6248.5-18.32.5-21.3-21.2-16.5-23.3-20.8-7.14.5-20.718.3-22.2-19.0-4.7-7.5-9.09.1-17.7-14.0-2.3-20.56.1-19.4-2.744.6
Percentage of InterestAndDividendIncomeOperating0.00.00.062.6-19.8-6.9-10.9-8.9-9.7-5.9-6.733.9-12.8-11.7-41.8-5.31.0-5.7-5.6-5.4-7.2-5.6-2.01.5-6.1-7.4-6.3-5.3-2.2-2.1-2.7-5.1-4.4-3.4-0.5-2.9-3.7-3.2-0.58.3
Percentage of InterestAndDividendIncomeOperating us-gaap:Corporate0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.03.02.9772.8512.8522.8832.8522.822.912.8832.8522.822.912.8832.8522.822.8792.8832.8522.8512.8482.9772.8512.7582.982.8752.8592.8132.9342.8752.8432.8132.9012.8752.8442.8442.8712.8752.8442.8442.8392.8752.8442.844
Percentage of ProfitLoss1.01.30.65.017.32.52.52.72.91.03.33.0-6.04.03.04.85.04.34.75.55.54.75.2-3.85.95.83.55.75.4-2.86.36.36.710.0-2.38.57.67.412.56.616.48.513.9-28.7
Percentage of InterestAndDividendIncomeOperating0.00.00.50.80.80.70.70.70.70.70.70.81.01.21.21.31.31.41.41.51.51.61.51.51.71.61.61.61.61.61.51.51.51.41.41.41.41.41.41.41.31.31.31.3
Percentage of InterestAndDividendIncomeOperating us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarningsUnappropriated


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value30823353653131111101002718392
Percentage of ProfitLoss99.098.799.495.082.797.597.597.399.096.797.0
Percentage of InterestAndDividendIncomeOperating0.00.089.615.53.627.326.925.169.121.425.4
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarningsUnappropriated0.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

fhn:UnderwritingPortfolioAdvisoryandOtherNoninterestIncome


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1410.0109.98.89.3109.27.17.34.98.47.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.01.72.52.52.52.31.71.81.22.11.9
Percentage of InterestAndDividendIncomeOperating fhn:UnderwritingPortfolioAdvisoryandOtherNoninterestIncome0.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value8790887513842098302948644471974331043717421714109940832406354107640463414232962229369296182855528449275412696326195253872523925715256722398624222239412378924193251332516625520257392549225678247892557125054244382469825384262542592326068
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

fhn:IBERIABANKCorporation, us-gaap:SubsequentEvent


Assetsdei:
Period End2020-07-01
Value34700
Percentage of Assets0.0
Percentage of Assets0.0
Percentage of Assets fhn:IBERIABANKCorporation us-gaap:SubsequentEvent100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

fhn:RabbiTrustsUsedForDeferredCompensationPlans


Assetsus-gaap:
Period End2020-12-312019-12-31
Value16492
Percentage of Assets0.20.2
Percentage of Assets0.20.2
Percentage of Assets fhn:RabbiTrustsUsedForDeferredCompensationPlans100.0100.0

srt:ParentCompany


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value9368559952785107
Percentage of Assets11.112.912.912.3
Percentage of Assets11.112.912.912.3
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2021-03-312020-12-31
Value200195
Percentage of Assets0.20.2
Percentage of Assets0.20.2
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0

us-gaap:Assets us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value136291192785575626324290057246669711131366614836396190110211037255215246156831301963921677780202562272911891129640789760862848
Percentage of Assets15.513.610.26.86.71.91.31.11.72.73.31.52.01.04.63.43.58.65.32.22.54.83.73.62.73.07.92.63.05.04.72.63.13.03.43.3
Percentage of Assets15.513.610.26.86.71.91.31.11.72.73.31.52.01.04.63.43.58.65.32.22.54.83.73.62.73.07.92.63.05.04.72.63.13.03.43.3
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:EstimateOfFairValueFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1135911081112771169481998023706772147243751273287993793382137851643663706099552863416360618755835856574462975527570956075478474055985338563552285861
Percentage of Assets12.912.713.414.116.917.016.316.517.218.317.919.719.320.319.021.721.720.619.422.323.122.921.323.122.824.521.523.823.122.919.923.121.222.420.522.8
Percentage of Assets12.912.713.414.116.917.016.316.517.218.317.919.719.320.319.021.721.720.619.422.323.122.921.323.122.824.521.523.823.122.919.923.121.222.420.522.8
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:EstimateOfFairValueFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value569965866158451599503322034394317953187630094283752785927590278782762428104202442000819061195161953618462174781754716626168411659716093156811566314977152741506215734154531623216239
Percentage of Assets64.867.069.472.268.372.973.472.971.469.068.267.967.968.367.868.368.164.468.368.767.064.867.065.566.764.562.765.464.762.664.262.362.661.463.663.1
Percentage of Assets64.867.069.472.268.372.973.472.971.469.068.267.967.968.367.868.368.164.468.368.767.064.867.065.566.764.562.765.464.762.664.262.362.661.463.663.1
Percentage of Assets us-gaap:FairValueInputsLevel3 us-gaap:EstimateOfFairValueFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value816268143477886768674432042928390783927037926369033654336248367443622737809278212757227916268242668925815252452441323683235232396123921222842248022139216502206022749227002319923617
Percentage of Assets92.993.192.592.691.191.090.289.889.989.889.589.289.589.591.393.993.994.393.993.893.793.693.293.393.293.293.292.992.892.591.091.290.590.290.991.8
Percentage of Assets92.993.192.592.691.191.090.289.889.989.889.589.289.589.591.393.993.994.393.993.893.793.693.293.393.293.293.292.992.892.591.091.290.590.290.991.8
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value819848166978285772704466243318394353955638035370013655436198366483623437857277022741627714265702649325506249672409423404232642367523646220132199921645211452130121862218492232322949
Percentage of Assets93.393.393.093.191.891.891.190.590.290.089.589.189.289.591.493.593.393.693.093.192.692.692.092.292.292.192.191.890.890.488.988.087.086.887.589.2
Percentage of Assets93.393.393.093.191.891.891.190.590.290.089.589.189.289.591.493.593.393.693.093.192.692.692.092.292.292.192.191.890.890.488.988.087.086.887.589.2
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

fhn:RabbiTrustsUsedForDeferredCompensationPlans


Assetsus-gaap:
Period End2020-09-302019-12-31
Value15491
Percentage of Assets0.20.2
Percentage of Assets0.20.2
Percentage of Assets fhn:RabbiTrustsUsedForDeferredCompensationPlans100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value7934379206759027488543436421413823438721372453625236046358933652735890368422673926543268782585025704248492432023555228072272123216230812136421596213972128921760225862256623010232072297823004221042282822372217982202022077229662265222766
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets90.390.590.190.289.389.388.388.688.388.288.388.388.988.788.990.390.490.790.590.490.290.289.989.890.090.389.989.189.289.489.589.989.989.790.290.290.189.689.289.389.389.289.287.087.587.487.3

us-gaap:Liabilities us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

fhn:LowIncomeHousingPartnerships, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-09-302019-12-31
Value166136
Percentage of Liabilities0.20.4
Percentage of Assets0.20.3
Percentage of Assets fhn:LowIncomeHousingPartnerships us-gaap:VariableInterestEntityNotPrimaryBeneficiary0.00.0

fhn:OnBalanceSheetTrustPreferredSecuritization, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-09-302019-12-31
Value8280
Percentage of Liabilities0.10.2
Percentage of Assets0.10.2
Percentage of Assets fhn:OnBalanceSheetTrustPreferredSecuritization us-gaap:VariableInterestEntityNotPrimaryBeneficiary0.00.0

fhn:OtherTaxCreditInvestments, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-09-30
Value34
Percentage of Liabilities0.0
Percentage of Assets0.0
Percentage of Assets fhn:OtherTaxCreditInvestments us-gaap:VariableInterestEntityNotPrimaryBeneficiary0.0

fhn:ProprietaryTrustPreferredIssuances, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-09-302019-12-31
Value287167
Percentage of Liabilities0.40.4
Percentage of Assets0.30.4
Percentage of Assets fhn:ProprietaryTrustPreferredIssuances us-gaap:VariableInterestEntityNotPrimaryBeneficiary0.00.0

us-gaap:Liabilities us-gaap:ConsolidatedEntities

fhn:RabbiTrustsUsedForDeferredCompensationPlans


Liabilitiesus-gaap:
Period End2020-12-312019-12-31
Value14271
Percentage of Liabilities0.20.2
Percentage of Assets0.20.2
Percentage of Assets fhn:RabbiTrustsUsedForDeferredCompensationPlans86.677.2

srt:ParentCompany


Liabilitiesus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value1356819788822
Percentage of Liabilities1.82.12.22.2
Percentage of Assets1.61.91.92.0
Percentage of Assets srt:ParentCompany14.514.614.916.1

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2021-03-312020-12-31
Value173165
Percentage of Liabilities0.20.2
Percentage of Assets0.20.2
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary86.584.6

us-gaap:Liabilities us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, fhn:LowIncomeHousingPartnerships


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value128126132136
Percentage of Liabilities0.20.20.20.4
Percentage of Assets0.10.10.20.3
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary fhn:LowIncomeHousingPartnerships0.00.00.00.0

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, fhn:OnBalanceSheetTrustPreferredSecuritization


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value83838281
Percentage of Liabilities0.10.10.10.2
Percentage of Assets0.10.10.10.2
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary fhn:OnBalanceSheetTrustPreferredSecuritization0.00.00.00.0

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, fhn:ProprietaryTrustPreferredIssuances


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value287287287167
Percentage of Liabilities0.40.40.40.4
Percentage of Assets0.30.30.30.4
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary fhn:ProprietaryTrustPreferredIssuances0.00.00.00.0

us-gaap:Liabilities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value2611671453017119333736301818189.5357.6271218331019133.527154.7887.8282.0352.8955.312.7384.3439.7735162.54612
Percentage of Liabilities0.00.10.10.10.10.40.10.10.10.10.10.10.10.10.00.00.00.10.10.00.10.10.00.10.00.00.00.00.00.00.00.00.20.10.00.1
Percentage of Assets0.00.10.10.10.10.40.00.10.10.10.10.00.00.00.00.00.00.10.10.00.10.00.00.10.00.00.00.00.00.00.00.00.10.10.00.0
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:EstimateOfFairValueFairValueDisclosure0.21.00.80.80.919.13.57.35.43.32.23.12.24.70.50.71.20.72.21.82.91.00.41.70.71.00.10.50.70.20.41.54.42.20.31.5

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value86388912915310198724294858254986382507118658480258223755936013262232608026407252832513524132235952281122067220122229922309207002097220668203492061121071210972162821964
Percentage of Liabilities10.911.312.113.616.722.521.625.522.219.618.322.422.521.197.798.198.398.297.897.897.197.096.896.896.996.096.796.997.196.695.694.793.393.594.094.6
Percentage of Assets9.810.210.912.314.920.119.122.619.617.316.119.720.018.786.988.588.889.288.588.487.687.587.186.987.286.786.986.386.686.385.585.283.883.884.885.3
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:EstimateOfFairValueFairValueDisclosure76.080.481.287.288.3118.2116.8136.7113.994.889.8100.4103.792.0458.7407.4409.4432.9457.3396.4379.4381.3408.5376.8383.2354.1403.6362.5374.0377.3429.2368.1394.7374.4413.7374.7

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value36236534434722021423424123723823529429728027811588929598101102107114120125129135135138335274287300305426
Percentage of Liabilities0.50.50.50.50.50.50.60.60.60.70.70.80.80.80.80.40.30.30.40.40.40.40.50.50.50.50.60.60.60.61.61.31.31.31.31.8
Percentage of Assets0.40.40.40.40.50.50.50.60.60.60.60.70.70.70.70.40.30.30.30.30.40.40.40.40.50.50.50.60.60.61.41.11.11.21.21.7
Percentage of Assets us-gaap:FairValueInputsLevel3 us-gaap:EstimateOfFairValueFairValueDisclosure0.60.60.60.60.70.60.70.80.80.80.81.11.11.01.00.60.40.50.50.50.50.60.60.70.70.80.80.90.90.92.21.81.81.91.92.6

us-gaap:Liabilities us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value887192459440104167407986385011012285277395687983528551788936309263312615826493253922524424270237282293522209221642245222461208502111820809207082102321747215612210822501
Percentage of Liabilities11.211.712.413.917.123.422.226.122.920.419.123.323.422.098.698.598.698.698.298.297.797.697.497.497.596.797.397.697.897.297.396.696.395.596.197.0
Percentage of Assets10.110.611.212.515.220.919.623.220.218.016.820.620.819.587.788.989.189.588.988.788.188.087.687.587.887.387.586.987.286.987.086.986.585.786.687.4
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure10.911.412.113.616.723.021.825.822.520.018.823.023.321.896.094.694.994.994.794.694.094.093.993.894.293.793.993.693.994.095.795.395.695.095.395.3

us-gaap:EstimateOfFairValueFairValueDisclosure


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value902693939568105917492987285081013885267394684983378539785836301263462618026518254122524524253237102292222197221372243222441208392111320809206892089521394214152193622403
Percentage of Liabilities11.411.912.614.117.323.422.326.222.920.419.023.223.421.998.598.598.698.798.398.297.697.597.397.397.496.697.297.597.897.397.296.094.794.995.396.5
Percentage of Assets10.310.711.412.815.420.919.623.220.218.016.820.520.819.487.688.989.189.589.088.788.187.987.587.487.787.287.486.987.286.987.086.485.185.186.087.0
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure11.011.512.213.716.822.821.625.622.420.018.723.023.321.795.995.195.595.795.695.395.195.095.194.895.294.794.994.796.096.197.898.197.998.098.397.6

us-gaap:Liabilities us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

fhn:RabbiTrustsUsedForDeferredCompensationPlans


Liabilitiesus-gaap:
Period End2020-09-302019-12-31
Value13170
Percentage of Liabilities0.20.2
Percentage of Assets0.20.2
Percentage of Assets fhn:RabbiTrustsUsedForDeferredCompensationPlans85.177.1

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value8790887513842098302948644471974331043717421714109940832406354107640463414232962229369296182855528449275412696326195253872523925715256722398624222239412378924193251332516625520257392549225678247892557125054244382469825384262542592326068
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value9368559952785107
Percentage of LiabilitiesAndStockholdersEquity11.112.912.912.3
Percentage of Assets11.112.912.912.3
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value82708012801278484912476047804700463045514489444642544277428525882531244524092449239623472344228422222203229523262330224822052137225023042214223622192379238924482386234423823011299229753007
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.49.29.59.510.110.111.010.811.011.111.010.910.410.610.38.78.68.38.48.68.78.78.99.08.88.68.99.79.69.49.38.89.09.28.78.78.79.39.69.69.59.69.611.911.411.511.5

Tier One Risk Based Capital

us-gaap:TierOneRiskBasedCapital dei:LegalEntity

us-gaap:TierOneRiskBasedCapital

fhn:Fhn


Tier
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value6782376035653281267125722813261826402850
Percentage of TierOneRiskBasedCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.18.78.77.99.49.811.011.010.311.5
Percentage of Assets fhn:Fhn0.00.00.00.00.00.00.00.00.00.0

fhn:FirstHorizonBank


Tier
Period End2020-12-312019-12-312018-12-31
Value682537283492
Percentage of TierOneRiskBasedCapital100.699.298.0
Percentage of Assets8.18.68.6
Percentage of Assets fhn:FirstHorizonBank0.00.00.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

us-gaap:CashAndCashEquivalentsAtCarryingValue

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-31
Value827369334254
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0
Percentage of Assets1.00.90.80.6
Percentage of Assets srt:ParentCompany8.86.66.35.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value19251689164816681019113012661495124912121405144314521037
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.21.92.02.02.12.42.93.43.03.03.43.63.53.6

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents us-gaap:ConsolidatedEntities

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value827369334254226
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents50.229.123.817.621.8
Percentage of Assets1.00.90.80.60.8
Percentage of Assets srt:ParentCompany8.86.66.35.00.0

Land

us-gaap:Land

us-gaap:Land


Land
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1829810710463677675697166
Percentage of Land100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.30.30.20.30.30.30.30.30.3

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1136792815850612636670670655679663
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.82.02.12.12.42.62.82.62.72.7

Furniture And Fixtures Gross

us-gaap:FurnitureAndFixturesGross

us-gaap:FurnitureAndFixturesGross


Furniture
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value269205196194180194201202206221213
Percentage of FurnitureAndFixturesGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.50.50.50.60.70.80.80.80.90.9

Leasehold Improvements Gross

us-gaap:LeaseholdImprovementsGross

us-gaap:LeaseholdImprovementsGross


Leasehold
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value7350302626313238424444
Percentage of LeaseholdImprovementsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.20.20.20.2

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value377337321318323360367364352357340
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.80.80.81.11.41.41.51.41.41.4

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value141414145.2845.3086.2066.2066.2066.2166.4616.466.466.4743.5681.9641.9641.2321.31.2991.2991.31.3591.2981.2981.2981.2250.9820.9810.9821.1280.9280.9280.9280.9790.9790.9790.9731.01.0041.0321.0322.4141.0371.0781.078
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value714719759756448447455451454484494506525531532293292290289279279274275269269301302295300299305308310299303305311314321326330320322311307308313
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.80.90.90.90.91.11.01.11.21.21.21.31.31.31.01.01.01.01.01.01.01.11.11.11.21.21.21.21.21.31.31.21.21.21.21.21.21.31.31.31.31.31.21.21.21.2

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value151115111511151014321432143214321432143214321409140913981386236236191191191191191191145145145145141141141141140147134134134134134133133135152162162162162165192
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.71.81.82.93.03.33.33.43.53.53.53.43.53.30.80.80.60.70.70.70.70.70.60.60.60.60.60.60.60.60.60.60.50.50.50.50.50.50.50.50.60.70.60.60.60.60.0

us-gaap:Goodwill us-gaap:BusinessAcquisition

fhn:IBERIABANKCorporation


Goodwillus-gaap:
Period End2020-09-302020-07-01
Value-532.15-533.0
Percentage of Goodwill-35.20.0
Percentage of Assets-0.60.0
Percentage of Assets fhn:IBERIABANKCorporation0.00.0

fhn:TruistBankBranches


Goodwillus-gaap:
Period End2021-03-312020-12-312020-09-302020-07-17
Value78787778
Percentage of Goodwill5.25.25.10.0
Percentage of Assets0.10.10.10.0
Percentage of Assets fhn:TruistBankBranches0.00.00.00.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

fhn:FixedIncome


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value6316316311421421421421421421421421421421421421421429898989898989898989898989898
Percentage of Goodwill41.841.841.89.510.010.010.010.010.010.010.010.110.110.210.360.560.551.251.251.251.251.251.267.267.267.267.269.069.069.073.0
Percentage of Assets0.70.70.70.20.30.30.30.30.30.30.40.40.30.40.30.50.50.30.30.30.40.40.40.40.40.40.40.40.40.40.4
Percentage of Assets fhn:FixedIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:RegionalBanking


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value8808808801367128912891289128912891289128912661266125512439393939393939393474747474343434342493636363636363638363836383836
Percentage of Goodwill58.258.258.290.590.090.090.090.090.090.090.089.989.989.889.739.539.548.848.848.848.848.848.832.832.832.832.831.031.031.031.030.233.727.027.027.027.027.027.127.128.223.823.622.323.623.118.8
Percentage of Assets1.01.01.01.62.72.73.03.03.13.13.23.13.13.13.00.30.30.30.30.30.30.30.40.20.20.20.20.20.20.20.20.20.20.10.10.10.10.10.10.10.20.10.20.10.10.10.0
Percentage of Assets fhn:RegionalBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:SpecialtyBanking


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value631631631614
Percentage of Goodwill41.844.044.044.3
Percentage of Assets0.71.51.51.5
Percentage of Assets fhn:SpecialtyBanking0.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value3253393543651191241301361421481551611671741844345192122232426252628291920212122232122232425262728313234353738
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.20.30.30.30.30.40.40.40.40.40.40.10.20.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CoreDeposits


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value26627829030110010510911411912412913413914415210111112
Percentage of IntangibleAssetsNetExcludingGoodwill81.882.081.982.684.184.284.384.083.783.583.283.082.882.682.724.824.858.957.7
Percentage of Assets0.30.30.30.40.20.20.30.30.30.30.30.30.30.40.40.00.00.00.0
Percentage of Assets us-gaap:CoreDeposits0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CustomerRelatedIntangibleAssets


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value2728292917
Percentage of IntangibleAssetsNetExcludingGoodwill8.38.38.28.213.6
Percentage of Assets0.00.00.00.00.0
Percentage of Assets us-gaap:CustomerRelatedIntangibleAssets0.00.00.00.00.0

us-gaap:CustomerRelationships


Intangible
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value29161717181921222324252727288.563
Percentage of IntangibleAssetsNetExcludingGoodwill8.214.113.813.613.814.014.214.414.514.714.814.763.463.440.7
Percentage of Assets0.00.00.00.00.00.00.10.10.10.10.10.10.10.10.0
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIntangibleAssets


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value323335332.1772.4422.7072.9723.2373.5023.7664.0324.2974.5624.8275.0925.3570.3220.325
Percentage of IntangibleAssetsNetExcludingGoodwill9.89.79.99.21.82.02.12.22.32.42.42.52.62.62.611.811.91.61.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsNet

fhn:IBERIABANKCorporation, fhn:PurchasedCreditCardIntangibleAssets


Finite
Period End2020-12-312020-09-30
Value10.010
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0
Percentage of Assets0.00.0
Percentage of Assets fhn:IBERIABANKCorporation fhn:PurchasedCreditCardIntangibleAssets0.00.0

fhn:IBERIABANKCorporation, fhn:StateBankingLicenses


Finite
Period End2020-12-312020-09-30
Value10.06.8
Percentage of FiniteLivedIntangibleAssetsNet100.066.0
Percentage of Assets0.00.0
Percentage of Assets fhn:IBERIABANKCorporation fhn:StateBankingLicenses0.00.0

fhn:IBERIABANKCorporation, us-gaap:CoreDeposits


Finite
Period End2020-12-312020-09-30
Value207206
Percentage of FiniteLivedIntangibleAssetsNet2070.02006.8
Percentage of Assets0.20.2
Percentage of Assets fhn:IBERIABANKCorporation us-gaap:CoreDeposits0.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value367202174178179
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0
Percentage of Assets0.40.50.40.40.4

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:EquitySecuritiesFvNi

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value292525242222222222222222
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.10.10.10.10.10.1
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:EstimateOfFairValueFairValueDisclosure0.20.20.30.40.72.54.04.83.22.01.63.6

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value235237263291321692206203201194218218
Percentage of EquitySecuritiesFvNi810.3948.01052.01178.01415.23033.8912.9907.7899.5870.5982.3987.0
Percentage of Assets0.30.30.30.40.71.50.50.50.50.50.50.5
Percentage of Assets us-gaap:FairValueInputsLevel3 us-gaap:EstimateOfFairValueFairValueDisclosure0.40.40.40.51.02.00.70.60.70.70.80.8

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value264262288315343715229226224216240240
Percentage of EquitySecuritiesFvNi910.31048.01152.01278.01515.23133.81012.91007.7999.5970.51082.31087.0
Percentage of Assets0.30.30.30.40.71.50.50.50.50.50.60.6
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure0.30.30.40.40.81.70.60.60.60.60.70.7

us-gaap:EstimateOfFairValueFairValueDisclosure


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value264262288315343715229226224216240240
Percentage of EquitySecuritiesFvNi910.31048.01152.01278.01515.23133.81012.91007.7999.5970.51082.31087.0
Percentage of Assets0.30.30.30.40.71.50.50.50.50.50.60.6
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure0.30.30.40.40.81.70.60.60.60.60.70.7

Other Assets

us-gaap:OtherAssets

us-gaap:OtherAssets


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value37103696407241352209253620461912188519101802188319341943172314411411137814061435138713921438141814081419138713561372143016851637160416631963198621892143215121692117208321212199217822902257
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.24.24.85.04.55.44.74.44.54.64.44.64.74.84.24.94.84.74.95.05.05.25.55.65.65.55.45.75.76.07.16.86.46.67.77.78.68.38.78.58.58.58.68.78.38.88.7

us-gaap:OtherAssets us-gaap:ConsolidatedEntities

fhn:RabbiTrustsUsedForDeferredCompensationPlans


Other
Period End2020-12-312019-12-31
Value16492
Percentage of OtherAssets4.04.5
Percentage of Assets0.20.2
Percentage of Assets fhn:RabbiTrustsUsedForDeferredCompensationPlans100.0100.0

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value274171180207
Percentage of OtherAssets6.78.410.012.1
Percentage of Assets0.30.40.40.5
Percentage of Assets srt:ParentCompany2.93.13.44.1

us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-31
Value200200195
Percentage of OtherAssets5.45.44.8
Percentage of Assets0.20.20.2
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.0100.0100.0

us-gaap:OtherAssets us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

fhn:RabbiTrustsUsedForDeferredCompensationPlans


Other
Period End2020-09-302019-12-31
Value15491
Percentage of OtherAssets3.74.5
Percentage of Assets0.20.2
Percentage of Assets fhn:RabbiTrustsUsedForDeferredCompensationPlans100.0100.0

Time Deposit Maturities Year One

us-gaap:TimeDepositMaturitiesYearOne

us-gaap:TimeDepositMaturitiesYearOne


Time
Period End2020-12-31
Value3952
Percentage of TimeDepositMaturitiesYearOne100.0
Percentage of Assets4.7

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.40.40.60.60.70.70.70.70.70.70.70.70.71.01.01.01.01.01.11.11.11.21.21.11.21.21.21.21.21.21.21.21.21.11.21.11.21.21.21.21.21.21.11.11.1

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value407223196199198
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.40.50.5

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value82708012801278484912476047804700463045514489444642544277428525882531244524092449239623472344228422222203229523262330224822052137225023042214223622192379238924482386234423823011299229753007
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.49.29.59.510.110.111.010.811.011.111.010.910.410.610.38.78.68.38.48.68.78.78.99.08.88.68.99.79.69.49.38.89.09.28.78.78.79.39.69.69.59.69.611.911.411.511.5

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value8565830783078144520850555076499649264846478547414549457245802883282627402705274426912642263925802517249925902621262625442500243325462599250925312514267426842743268126402678330632873270330235742430
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.79.59.99.810.710.711.711.411.711.811.711.711.111.311.19.79.69.39.59.69.89.810.110.210.09.710.110.910.810.610.510.110.110.39.89.89.910.410.810.710.710.810.813.012.512.612.70.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value8012478044894285
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest96.494.293.893.6
Percentage of Assets9.511.011.010.3
Percentage of Assets srt:ParentCompany85.585.485.183.9

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value-260.0-269.43-271.809-273.914-283.642-285.744-287.305-288.768-282.746-284.881-286.94-236.916-224.686-226.581-227.984-229.157-217.586-206.827
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-3.1-5.2-5.4-5.4-5.7-5.8-5.9-6.0-6.0-6.3-6.3-5.2-7.8-8.0-8.3-8.5-8.2-8.0
Percentage of Assets-0.3-0.6-0.6-0.6-0.6-0.7-0.7-0.7-0.7-0.7-0.7-0.6-0.8-0.8-0.8-0.8-0.8-0.8
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-254.0-256.0-260.0-267.051-269.43-271.0-273.914-283.642-285.744-288.768
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-3.0-3.1-3.1-3.3-5.2-5.4-5.4-5.7-5.8-6.0
Percentage of Assets-0.3-0.3-0.3-0.3-0.6-0.6-0.6-0.6-0.7-0.7
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value8.010.0121316163.2275.0282.184-12.112
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.10.10.10.20.30.30.10.10.0-0.3
Percentage of Assets0.00.00.00.00.00.00.00.00.0-0.0
Percentage of Assets us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value1216163.2275.0282.184-6.725-12.112-21.503-19.757-16.763-7.764-1.758-1.024-1.2650.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.10.30.30.10.10.0-0.1-0.3-0.5-0.4-0.4-0.2-0.1-0.0-0.00.0
Percentage of Assets0.00.00.00.00.00.0-0.0-0.0-0.1-0.0-0.0-0.0-0.0-0.0-0.00.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value435.0108113118120313721-75.736
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.50.11.31.42.32.40.60.80.4-1.6
Percentage of Assets0.00.00.10.10.20.30.10.10.0-0.2
Percentage of Assets us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value108118119313721-27.121-75.736-133.4-107.476-86.382-21.997-5.94-9.857-18.795-17.2323.39418
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.32.32.40.60.80.4-0.6-1.6-2.8-2.4-1.9-0.5-0.2-0.3-0.7-0.60.10.7
Percentage of Assets0.10.20.30.10.10.0-0.1-0.2-0.3-0.3-0.2-0.1-0.0-0.0-0.1-0.10.00.1
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-203.0-241.0-140.0-140.47-134.798-136.164-239.608-240.654-262.489-321.151-376.616-437.649-412.114-390.085-265.279-232.384-237.462-249.958-247.654-214.192-188.246-150.009-146.343-130.156-127.546-114.209-151.831-48.101
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-2.4-2.9-1.7-1.7-2.6-2.7-4.7-4.8-5.3-6.6-7.9-9.2-9.1-8.5-5.8-8.1-8.4-9.1-9.2-8.1-7.3-6.0-5.8-4.8-4.8-3.5-4.2-2.0
Percentage of Assets-0.2-0.3-0.2-0.2-0.3-0.3-0.6-0.6-0.6-0.8-0.9-1.1-1.0-1.0-0.6-0.8-0.8-0.8-0.9-0.8-0.7-0.6-0.6-0.5-0.5-0.40.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value499750365074506129402938293129252941298330293101311331553147138614391380141614881601163012081048361
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest58.360.661.162.156.558.157.858.659.761.663.365.468.469.068.751.354.553.356.759.359.660.936.629.314.9
Percentage of Assets5.75.86.06.16.06.26.86.77.07.37.47.67.67.87.64.95.55.46.05.86.56.64.60.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-203.0-241.0-140.0-140.47-134.798-135.0-239.608-240.654-262.489-376.616
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-2.4-2.9-1.7-1.7-2.6-2.7-4.7-4.8-5.3-7.9
Percentage of Assets-0.2-0.3-0.2-0.2-0.3-0.3-0.6-0.6-0.6-0.9
Percentage of Assets us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value34434534734619519419419419519719920220320420414614914614715216016413812878
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest4.04.24.24.33.73.93.83.94.04.14.24.34.54.54.55.45.65.65.96.16.06.14.23.63.2
Percentage of Assets0.40.40.40.40.40.40.40.40.50.50.50.50.50.50.50.50.60.60.60.60.60.70.50.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest3.43.63.63.65.75.85.85.96.06.16.26.26.56.56.410.210.510.810.910.811.011.211.211.411.711.811.411.311.211.611.812.111.611.411.811.711.711.011.010.811.011.211.08.99.09.08.98.312.1
Percentage of Assets0.30.30.40.40.60.60.70.70.70.70.70.70.70.70.71.01.01.01.01.01.11.11.11.21.21.11.21.21.21.21.21.21.21.21.21.11.21.11.21.21.21.21.21.21.11.11.10.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PreferredStockIncludingAdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312010-12-312009-12-312008-12-312007-12-31
Value52047047047024095959595959595959595959595950.07987820.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest6.15.75.75.84.61.91.91.91.92.02.02.02.12.12.13.53.63.73.80.024.221.90.0
Percentage of Assets0.60.50.60.60.50.20.20.20.20.20.20.20.20.20.20.30.40.40.40.03.10.00.0
Percentage of Assets us-gaap:PreferredStockIncludingAdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarningsUnappropriated


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value26122402226121101671166717981725166015951542148412541211110210298748606957197576318911387
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest30.528.927.225.932.133.035.434.533.732.932.231.327.626.524.138.033.133.227.828.728.223.627.038.8
Percentage of Assets3.02.72.72.53.43.54.23.93.93.93.83.73.13.02.73.63.33.42.92.83.12.63.40.0
Percentage of Assets us-gaap:RetainedEarningsUnappropriated0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value344345347346195194194194195197199202203204204146146146146145145145149146146145146147148147147147150150152154155157160164164164164145143141138
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.40.40.40.40.50.50.50.50.50.50.50.50.50.50.50.50.50.50.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.70.70.70.60.50.50.5

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value49975036507450612940293829312925294129833029310131133155314714011395139113861376136213711439137713711370138013901416141714161413141614611488151715281560160116411638163616301344129612511208
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.75.86.06.16.06.26.86.77.07.37.47.67.67.87.64.74.84.74.94.84.95.15.55.45.45.35.45.85.85.96.05.85.65.85.85.96.06.16.56.46.56.76.65.34.94.84.6

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value2612240222612110167116671798172516601595154214841254121111601177113110611029992945905874841797760860826792728695657777748719681658785757724691674631737767809891
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.02.72.72.53.43.54.23.93.93.93.83.73.13.02.84.03.93.63.63.53.43.43.33.33.23.03.43.43.33.02.92.73.13.02.82.62.63.13.12.82.82.82.62.92.93.13.4

us-gaap:RetainedEarningsAccumulatedDeficit dei:LegalEntity

fhn:FirstHorizonBank


Retained
Period End2020-12-312019-12-31
Value18001200
Percentage of RetainedEarningsAccumulatedDeficit79.666.7
Percentage of Assets2.12.8
Percentage of Assets fhn:FirstHorizonBank0.00.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value-203.0-241.0-140.0-140.47-134.798-136.164-239.608-240.654-262.489-321.151-376.616-437.649-412.114-390.085-322.825-232.384-237.462-249.958-247.654-160.828-152.334-170.441-214.192-176.676-188.248-169.159-188.246-132.835-122.111-140.119-150.009-176.391-188.665-151.639-146.343-116.684-122.583-124.613-130.156-83.552-108.508-130.379-127.546-109.958-105.922-113.291-114.209-151.831
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.2-0.3-0.2-0.2-0.3-0.3-0.6-0.6-0.6-0.8-0.9-1.1-1.0-1.0-0.8-0.8-0.8-0.8-0.9-0.6-0.6-0.6-0.8-0.7-0.7-0.7-0.7-0.6-0.5-0.6-0.6-0.7-0.8-0.6-0.6-0.5-0.5-0.5-0.5-0.3-0.4-0.5-0.5-0.4-0.4-0.4-0.40.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295295
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.40.40.60.60.70.70.70.70.70.70.70.70.71.01.01.01.01.01.11.11.11.21.21.11.21.21.21.21.21.21.21.21.21.11.21.11.21.21.21.21.21.21.11.11.1

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-06-302020-06-30
Value145144
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0
Percentage of Assets0.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock

us-gaap:SeriesFPreferredStock


Stock
Period End2021-06-30
Value150
Percentage of StockIssuedDuringPeriodValueNewIssues103.4
Percentage of Assets0.0
Percentage of Assets us-gaap:SeriesFPreferredStock0.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

us-gaap:SeriesFPreferredStock, us-gaap:SubsequentEvent


Stock
Period End2021-05-03
Value146
Percentage of StockIssuedDuringPeriodValueNewIssues0.0
Percentage of Assets0.0
Percentage of Assets us-gaap:SeriesFPreferredStock us-gaap:SubsequentEvent0.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:PreferredStockIncludingAdditionalPaidInCapital


Stock
Period End2021-06-302020-06-30
Value145144
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0
Percentage of Assets0.00.0
Percentage of Assets us-gaap:PreferredStockIncludingAdditionalPaidInCapital0.00.0

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1110.0113.7187.2815.8225.2245.4325.7066.0125.5475.9065.6565.1314.8115.0295.1584.5823.8553.9413.8443.4783.453.0242.9962.6682.9272.763.6924.1614.0714.223.8034.3144.2263.8584.6594.3672.6032.5441.76.1712.4411.675
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1110.0113.7187.2815.8225.2245.4326.0125.5475.906
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.03.02.9772.8512.8522.8832.8522.822.912.8832.8522.822.912.8832.8522.822.8792.8832.8522.8512.8482.9772.8512.7582.982.8752.8592.8132.9342.8752.8432.8132.9012.8752.8442.8442.8712.8752.8442.844-19.9652.8752.8442.844
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.03.02.9772.8512.8522.8832.8522.822.912.8832.8522.822.912.8832.8522.822.8792.8832.8522.8512.8482.9772.8512.7582.982.8752.8592.8132.9342.8752.8432.8132.9012.8752.8442.8442.8712.8752.8442.844-19.9652.8752.8442.844
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-49.01064444230897-1400.005113369224122365-174.728248-204.378288135-369.25-71.198440-238.28189-111.018154101252-141.58611920052333317263552259423-148.965-162.28680261-72.646-224.8633651-394.523-122.639
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.038.5258.8-370.028.190.654.630.691.0-44.464.0-56.2100.254.4-156.9-32.5200.4-115.145.5-57.382.455.3135.1-79.566.4111.929.5191.9177.114.219.528.1132.1211.3-74.2-80.538.2125.5-35.1-108.3291.5292.1-179.0-55.9

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value126-4072.0-1518.3621777-2744.314-2481.94355-1346.683-1005.833-92.73-865.195916-839.7841268-1069.657-225.065512-554.262-917.883-909.982-372.428-268.259-941.815-58.671-99.893580-1357.452-22.285-238.106131-801.71196822573-75.368-231.17654-162.915-89.47-409.783-215.132881-521.599-177.611509811
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.0297.2-791.7-656.013.7-330.5-244.1-23.1-215.7232.9-216.5349.1-371.9-90.7218.0-253.3-417.4-439.7-188.7-138.5-502.0-31.9-53.4325.9-756.5-12.5-134.375.6-447.8530.412.4307.6-38.4-115.327.0-80.8-42.7-196.7-104.1424.5-240.1-79.6231.3369.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value15930491053-1359.11117363745-397.9131223817-222.214462-775.795635-1083.275114598-300.6198233571099406430704-97.276-141.892-352.7911399-361.17206-220.124287-1006.666-63.521-690.13436-163.283-13.203461-221.583296334-560.783-277.178-507.84149-804.723
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.0-227.2501.1989.8-98.5300.2198.5-55.5115.2-197.1163.9-298.1398.439.8-127.7376.4162.5531.4205.9222.2375.5-53.0-75.9-198.1780.2-201.9116.6-126.8160.6-551.3-34.5-370.218.8-81.4-6.6228.9-105.7142.2161.8-270.1-127.6-227.622.5-366.6

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value23641-20.22648-110.502-136.844-228.78724536-192.455-37.885-33.81
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.0108.4-31.9-36.2-56.660.48.9-48.0-9.4-8.6

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312011-12-312011-09-302010-12-312010-09-30
Value26-3.064-43.916-19.928-18.6-54.7458.159537.238-2.75768172012116-23.7826.921133304.29317-5.337139-40.506
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-49.01064444230897-1400.005113369224122365-174.728248-204.378288135-369.25-71.198440-238.28189-111.018154101252-141.58611920052333317263552259423-148.965-162.28680261-72.646-224.8633651-394.523-122.639
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.038.5258.8-370.028.190.654.630.691.0-44.464.0-56.2100.254.4-156.9-32.5200.4-115.145.5-57.382.455.3135.1-79.566.4111.929.5191.9177.114.219.528.1132.1211.3-74.2-80.538.2125.5-35.1-108.3291.5292.1-179.0-55.9

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3082332415365313118111110100972718392-51.29168925554645849486052-75.1634746784650-105.90142424025-124.7743034361940143017-12.737
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.089.615.53.629.327.326.925.124.469.121.425.4-17.827.839.225.424.931.329.425.525.932.927.9-42.226.726.244.226.728.5-58.023.022.620.712.9-62.215.116.717.39.719.36.713.88.0-5.8

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
Value31123624453956161211131131031002748594-48.38171955857676052516354-72.4055049814953-103.02645444328-121.933337382243173320-9.893
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 InterestAndDividendIncomeOperating0.00.00.090.116.34.430.028.027.625.825.169.822.226.1-16.828.940.526.726.332.730.927.027.434.529.4-40.728.427.845.828.430.1-56.424.624.122.214.3-60.716.618.018.711.020.78.015.19.3-4.5

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value-4.0-3.0-2.824-1.395-1.0-2.0-2.852-3.091-17.5182.906-3.6790.761
Percentage of ProfitLoss-1.3-1.3-1.2-0.3-1.8-12.1-2.4-2.7-17.41.17.61.1
Percentage of InterestAndDividendIncomeOperating0.00.00.0-0.2-0.3-0.5-0.7-0.8-4.40.7-1.30.3
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value-6.0-2.0-2.974-2.52-2.0-2.0-2.52-2.102-14.3752.135-9.5991.405
Percentage of ProfitLoss-1.9-0.8-1.2-0.5-3.5-12.1-2.1-1.8-14.30.819.82.0
Percentage of InterestAndDividendIncomeOperating0.00.00.0-0.4-0.6-0.5-0.6-0.5-3.60.5-3.30.6
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value2.0-1.02.1472.1282.0-0.332-0.989-3.2210.7715.344-0.643
Percentage of ProfitLoss0.6-0.40.90.43.5-0.3-0.9-3.20.3-11.0-0.9
Percentage of InterestAndDividendIncomeOperating0.00.00.00.40.6-0.1-0.2-0.80.21.9-0.3
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Profit
Period End2020-12-312020-09-302019-12-312018-12-312018-09-302017-12-312017-09-30
Value-1.997-1.0030.00.0780.00.576-0.001
Percentage of ProfitLoss-0.8-0.20.00.10.0-1.2-0.0
Percentage of InterestAndDividendIncomeOperating0.0-0.20.00.00.00.2-0.0
Percentage of InterestAndDividendIncomeOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementBusinessSegments

fhn:FixedIncome


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value1341503224133191911127.6192.2642.333-0.3492.7824.0335.6974.2372.2643.9939.451117.2447.363-2.665.9136.9993.9043.23530
Percentage of ProfitLoss43.163.6131.97.758.3118.216.310.210.87.42.20.8-0.42.9-8.37.94.53.96.914.019.013.914.3-4.210.8-9.77.76.538.1
Percentage of InterestAndDividendIncomeOperating0.00.00.06.99.55.14.92.93.01.90.60.6-0.10.81.42.31.81.01.84.65.93.73.9-1.43.23.92.21.817.4
Percentage of InterestAndDividendIncomeOperating fhn:FixedIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:NonStrategic


Profit
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.4880.7691.9885.7615.876137.5716.228116.6046.918-14.6365.814153.9562.9194.32219.79-2.8488.414-113.7527.8274.8187.071127.621-148.2622.515-10.082-15.892-22.422-168.9-27.692-35.601-55.388-3.147-14.588-51.915-27.312-21.147
Percentage of ProfitLoss0.51.412.14.85.211.67.36.24.27.77.330.38.116.76.85.16.435.418.8-5.513.326.9157.115.49.78.724.514.1143.95.6-22.4-36.5-78.2138.5-83.0-94.2-142.1-13.8-33.9-300.0-81.0-103.3
Percentage of InterestAndDividendIncomeOperating0.40.20.51.41.43.21.91.62.91.71.9-5.12.36.81.81.32.110.95.1-1.54.67.9-63.94.42.74.06.94.3-81.21.4-5.4-8.1-11.2-84.1-13.7-17.0-26.6-1.5-7.0-23.9-12.2-9.6
Percentage of InterestAndDividendIncomeOperating fhn:NonStrategic0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:RegionalBanking


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value27622049120912113913212811111912712912782737264636541465054454750514736444843494843414757594641403219
Percentage of ProfitLoss88.793.220.222.4161.5128.5115.2116.5112.8108.0118.246.4150.3134.4-170.4102.376.3110.6109.396.168.888.298.386.483.0-65.799.1102.858.073.382.3-47.095.1110.4111.3153.1-34.0141.8151.9151.9202.096.9232.997.696.1
Percentage of InterestAndDividendIncomeOperating0.00.00.020.226.45.634.632.631.127.929.732.433.335.128.729.630.929.528.731.421.323.827.029.824.426.728.128.626.520.824.826.523.426.624.721.920.623.527.428.422.320.118.614.78.9
Percentage of InterestAndDividendIncomeOperating fhn:RegionalBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Corporate


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-99.0-134.0-122.273374-68.671-26.154-44.039-36.309-39.95-23.449-26.825133-49.483-42.383-120.243-13.1472.371-12.411-12.264-11.163-14.173-10.871-3.6632.842-11.363-13.228-11.281-9.444-3.836-3.71-4.831-9.335-8.021-6.278-0.987-5.878-7.468-6.486-1.03817
Percentage of ProfitLoss-31.8-56.8-49.969.5-121.2-158.8-36.3-31.9-35.1-22.7-26.648.5-57.5-44.6248.5-18.32.5-21.3-21.2-16.5-23.3-20.8-7.14.5-20.718.3-22.2-19.0-4.7-7.5-9.09.1-17.7-14.0-2.3-20.56.1-19.4-2.744.6
Percentage of InterestAndDividendIncomeOperating0.00.00.062.6-19.8-6.9-10.9-8.9-9.7-5.9-6.733.9-12.8-11.7-41.8-5.31.0-5.7-5.6-5.4-7.2-5.6-2.01.5-6.1-7.4-6.3-5.3-2.2-2.1-2.7-5.1-4.4-3.4-0.5-2.9-3.7-3.2-0.58.3
Percentage of InterestAndDividendIncomeOperating us-gaap:Corporate0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.03.02.9772.8512.8522.8832.8522.822.912.8832.8522.822.912.8832.8522.822.8792.8832.8522.8512.8482.9772.8512.7582.982.8752.8592.8132.9342.8752.8432.8132.9012.8752.8442.8442.8712.8752.8442.8442.8392.8752.8442.844
Percentage of ProfitLoss1.01.30.65.017.32.52.52.72.91.03.33.0-6.04.03.04.85.04.34.75.55.54.75.2-3.85.95.83.55.75.4-2.86.36.36.710.0-2.38.57.67.412.56.616.48.513.9-28.7
Percentage of InterestAndDividendIncomeOperating0.00.00.50.80.80.70.70.70.70.70.70.81.01.21.21.31.31.41.41.51.51.61.51.51.71.61.61.61.61.61.51.51.51.41.41.41.41.41.41.41.31.31.31.3
Percentage of InterestAndDividendIncomeOperating us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarningsUnappropriated


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value30823353653131111101002718392
Percentage of ProfitLoss99.098.799.495.082.797.597.597.399.096.797.0
Percentage of InterestAndDividendIncomeOperating0.00.089.615.53.627.326.925.169.121.425.4
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarningsUnappropriated0.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1110.09.413113.7187.2816.2525.8225.2245.4325.7356.0125.5475.9065.6565.1314.8115.0295.1584.5823.8553.9413.8443.4783.453.0242.9962.6682.9272.763.6924.1614.0714.223.8034.3144.2263.8584.6594.3672.6032.5441.76.1712.4411.675
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value126-4072.0-1518.3621777-2744.314-2481.94355-1346.683-1005.833-92.73-865.195916-839.7841268-1069.657-225.065512-554.262-917.883-909.982-372.428-268.259-941.815-58.671-99.893580-1357.452-22.285-238.106131-801.71196822573-75.368-231.17654-162.915-89.47-409.783-215.132881-521.599-177.611509811
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.0297.2-791.7-656.013.7-330.5-244.1-23.1-215.7232.9-216.5349.1-371.9-90.7218.0-253.3-417.4-439.7-188.7-138.5-502.0-31.9-53.4325.9-756.5-12.5-134.375.6-447.8530.412.4307.6-38.4-115.327.0-80.8-42.7-196.7-104.1424.5-240.1-79.6231.3369.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value15930491053-1359.11117363745-397.9131223817-222.214462-775.795635-1083.275114598-300.6198233571099406430704-97.276-141.892-352.7911399-361.17206-220.124287-1006.666-63.521-690.13436-163.283-13.203461-221.583296334-560.783-277.178-507.84149-804.723
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.00.00.0-227.2501.1989.8-98.5300.2198.5-55.5115.2-197.1163.9-298.1398.439.8-127.7376.4162.5531.4205.9222.2375.5-53.0-75.9-198.1780.2-201.9116.6-126.8160.6-551.3-34.5-370.218.8-81.4-6.6228.9-105.7142.2161.8-270.1-127.6-227.622.5-366.6

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value8384834747444343443838393921212121161616161413131411111111111111122.4882.4622.4672.5622.5752.6112.621
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value6462-0.2950.7521.4792.0640.77228525380192.6062.1840.2690.3322.9372.0160.5957.1031375120.0213.2641614242.522.3510.13810483234143746440.0330.4160.4710.0050.859
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Debt Instrument Interest Rate Stated Percentage

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

us-gaap:DebtInstrumentInterestRateStatedPercentage

fhn:Fhn, srt:Maximum, fhn:NewMarketTaxCreditInvestments, us-gaap:NotesPayableOtherPayables


Debt
Period End2020-12-31
Value4.95
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations fhn:Fhn srt:Maximum fhn:NewMarketTaxCreditInvestments us-gaap:NotesPayableOtherPayables0.0

fhn:Fhn, srt:Minimum, fhn:NewMarketTaxCreditInvestments, us-gaap:NotesPayableOtherPayables


Debt
Period End2020-12-31
Value1.27
Percentage of DebtInstrumentInterestRateStatedPercentage25.7
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations fhn:Fhn srt:Minimum fhn:NewMarketTaxCreditInvestments us-gaap:NotesPayableOtherPayables0.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value15.215.6116.1616.817.8617.1117.1819.2921.2623.9826.86
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value471250254353297352370405430339333
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsNet us-gaap:IncomeTaxAuthority

us-gaap:DomesticCountry


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value474349126
Percentage of DeferredTaxAssetsNet10.017.519.635.9

us-gaap:StateAndLocalJurisdiction


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value9.01.27.219
Percentage of DeferredTaxAssetsNet1.90.52.85.6

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value7024204.2714.2443.6735.2076.62117323830
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Proceeds From Repayments Of Short Term Debt

us-gaap:ProceedsFromRepaymentsOfShortTermDebt

us-gaap:ProceedsFromRepaymentsOfShortTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value444.056-458.711-2933.5841806-429.8881652106992-1051.973-715.763504-1285.62681834387740-722.581170392170-13.048-65.764-152.422-585.09-441.139-299.10374584-127.251-229.6-70.715-311.084-303.472-224.035892-76.798-664.349530-169.47567-337.26-133.436-36.592-833.18
Percentage of ProceedsFromRepaymentsOfShortTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:Amortizationofintangibleassetsexcludinggoodwill

fhn:Amortizationofintangibleassetsexcludinggoodwill


Amortizationofintangibleassetsexcludinggoodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value14145.35.36.26.26.26.26.56.56.56.53.52.02.01.2-1.31.31.3-1.3-1.359-1.298-1.298-1.298-1.226-0.981
Percentage of Amortizationofintangibleassetsexcludinggoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:BankcardOtherIncome

fhn:BankcardOtherIncome


Bankcard
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value151112106.6527.2537.9847.0176.3556.0156.766.8786.635118.2376.175.6055.4556.3536.266.5585.2595.6075.5615.8845.1865.7375.5217.9194.524.9985.3035.2994.8825.7665.2985.7055.6157.2595.2585.1514.724.9764.9655.271
Percentage of BankcardOtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:BankcardOtherIncome us-gaap:StatementBusinessSegments

fhn:FixedIncome


Bankcard
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.00.00.00.00.0110.00.00.00.00.00.00.00.00.00.0
Percentage of BankcardOtherIncome6.70.00.00.00.20.00.00.00.00.00.00.00.00.00.0

fhn:NonStrategic


Bankcard
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.030.0270.0330.042-0.085-0.299-0.149-0.225-0.178-0.0780.0950.0610.0570.0530.057
Percentage of BankcardOtherIncome0.30.40.50.5-1.2-4.7-2.5-3.3-2.6-1.20.80.70.90.91.0

fhn:RegionalBanking


Bankcard
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value141110106.5517.157.8797.0286.5946.1026.9276.9996.658118.126.0575.4955.342
Percentage of BankcardOtherIncome93.3100.080.397.198.598.698.7100.2103.8101.4102.5101.8100.398.798.698.298.097.9

us-gaap:Corporate


Bankcard
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.5790.2770.0740.070.0630.0630.060.0620.0580.0570.0550.0560.0560.0560.057
Percentage of BankcardOtherIncome4.62.61.11.00.80.90.91.00.90.80.80.50.70.91.0

fhn:BrokerageManagementFeesAndCommissions

fhn:BrokerageManagementFeesAndCommissions


Brokerage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2120181713151414141213141313121112111110101011111211111212121110109.3488.988.6998.7598.4964.8695.6486.1396.8895.8396.4256.0066.339
Percentage of BrokerageManagementFeesAndCommissions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:BrokerageManagementFeesAndCommissions us-gaap:StatementBusinessSegments

fhn:RegionalBanking


Brokerage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value212017191315141414121314131312111211
Percentage of BrokerageManagementFeesAndCommissions100.0100.091.0109.5100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Corporate


Brokerage
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-1.7040.00.00.00.00.00.00.00.00.00.00.0010.00.0
Percentage of BrokerageManagementFeesAndCommissions-9.50.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:BusinessAcquisitionProFormaInterestIncomeExpenseNet us-gaap:BusinessAcquisition

fhn:BusinessAcquisitionProFormaInterestIncomeExpenseNet

fhn:IBERIABANKCorporation


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value555550544566
Percentage of BusinessAcquisitionProFormaInterestIncomeExpenseNet100.0100.0100.0100.0

fhn:BusinessAcquisitionProFormaNoninterestIncome us-gaap:BusinessAcquisition

fhn:BusinessAcquisitionProFormaNoninterestIncome

fhn:IBERIABANKCorporation


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value287290242235
Percentage of BusinessAcquisitionProFormaNoninterestIncome100.0100.0100.0100.0

fhn:BusinessCombinationProFormaInformationInterestIncomeExpenseNetOfAcquireeSinceAcquisitionDateActual

fhn:BusinessCombinationProFormaInformationInterestIncomeExpenseNetOfAcquireeSinceAcquisitionDateActual


Business
Period End2020-09-30
Value222
Percentage of BusinessCombinationProFormaInformationInterestIncomeExpenseNetOfAcquireeSinceAcquisitionDateActual100.0

fhn:BusinessCombinationProFormaInformationNoninterestIncomeOfAcquireeSinceAcquisitionDateActual

fhn:BusinessCombinationProFormaInformationNoninterestIncomeOfAcquireeSinceAcquisitionDateActual


Business
Period End2020-09-30
Value89
Percentage of BusinessCombinationProFormaInformationNoninterestIncomeOfAcquireeSinceAcquisitionDateActual100.0

fhn:CharitableContributionExpense

fhn:CharitableContributionExpense


Charitable
Period End2020-12-312020-09-302019-12-312019-09-30
Value1.18939100.167
Percentage of CharitableContributionExpense100.0100.0100.0100.0

fhn:ComputerSoftware

fhn:ComputerSoftware


Computer
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value30282625161615151515141515151311121011101111111111101010111010109.6081010109.969.4659.5078.6898.388.098.6767.5697.3377.082
Percentage of ComputerSoftware100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:DebtSecuritiesGainLossNet us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

fhn:DebtSecuritiesGainLossNet

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Debt
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2677000.01323000.0000267000.00000-52000.0-33000.0-1000.0-405000.0
Percentage of DebtSecuritiesGainLossNet100.0100.00.00.00.0100.00.00.00.00.0100.0100.0100.0100.0

fhn:DefinedBenefitPlanAmortizationofGainLossIncludingSettlementCurtailmentExpense us-gaap:RetirementPlanType

fhn:DefinedBenefitPlanAmortizationofGainLossIncludingSettlementCurtailmentExpense

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value64000.079000.075000.0147000.0112000.0117000.0117000.097000.0108000.091000.091000.0
Percentage of DefinedBenefitPlanAmortizationofGainLossIncludingSettlementCurtailmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-3171000.0-3381000.0-3224000.0-3224000.0-2472000.0-2546000.0-2435000.0-2435000.0-3026000.0-3164000.0-2956000.0-2956000.0
Percentage of DefinedBenefitPlanAmortizationofGainLossIncludingSettlementCurtailmentExpense0.0-5282.8-4081.0-4298.7-1681.6-2273.2-2081.2-2081.2-3119.6-2929.6-3248.4-3248.4

fhn:DefinedBenefitPlanNetPeriodicBenefitCostCreditBeforeASC715Expense us-gaap:RetirementPlanType

fhn:DefinedBenefitPlanNetPeriodicBenefitCostCreditBeforeASC715Expense

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.052-0.051-0.049-0.023-0.045-0.011-0.011-0.005-0.0150.0010.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCostCreditBeforeASC715Expense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.8212.2332.9732.9730.8040.7230.8450.8451.7811.8881.7271.727
Percentage of DefinedBenefitPlanNetPeriodicBenefitCostCreditBeforeASC715Expense0.0-4294.2-5829.4-6067.3-3495.7-1606.7-7681.8-7681.8-35620.0-12586.7172700.00.0

fhn:DepositTransactionsAndCashManagement

fhn:DepositTransactionsAndCashManagement


Deposit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value44424442303033343231253536313028272427272626282828262928272629292827303030283135353236343935
Percentage of DepositTransactionsAndCashManagement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:DepositTransactionsAndCashManagement us-gaap:StatementBusinessSegments

fhn:FixedIncome


Deposit
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3.03.00.00.00.00.00.0010.0030.0030.0030.0030.0030.0030.00.00.0
Percentage of DepositTransactionsAndCashManagement6.87.10.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fhn:NonStrategic


Deposit
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0280.0420.0430.0510.0570.0580.050.0570.0560.0610.0470.0480.0520.0490.042
Percentage of DepositTransactionsAndCashManagement0.10.10.10.20.20.20.20.20.20.20.20.20.20.20.2

fhn:RegionalBanking


Deposit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value393832402928313230302334342928262623
Percentage of DepositTransactionsAndCashManagement88.690.571.596.396.095.195.094.894.594.993.095.095.796.095.795.094.994.6

us-gaap:Corporate


Deposit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2.01.01.8691.5281.2041.4351.6011.7391.7071.5631.7281.7251.4971.2091.2321.3391.376
Percentage of DepositTransactionsAndCashManagement4.52.44.23.63.94.74.85.15.34.96.84.84.13.94.14.84.9

fhn:DepreciationPremisesAndEquipment

fhn:DepreciationPremisesAndEquipment


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value15161515101010101111111111119.6518.4358.4668.1518.3557.9967.9148.122
Percentage of DepreciationPremisesAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:DividendsPreferredStockIncludingCalls

fhn:DividendsPreferredStockIncludingCalls


Dividends
Period End2021-06-302020-06-30
Value132.0
Percentage of DividendsPreferredStockIncludingCalls100.0100.0

fhn:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationAcquisition us-gaap:FairValueByAssetClass

fhn:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationAcquisition

fhn:LoansHeldForInvestment


Fair
Period End2020-09-30
Value13
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationAcquisition100.0

fhn:FinancingReceivableAllowanceforCreditLossWriteoffCollateral fhn:SubClassofFinancingReceivable

fhn:FinancingReceivableAllowanceforCreditLossWriteoffCollateral

fhn:GeneralCI


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value2.01336181.5
Percentage of FinancingReceivableAllowanceforCreditLossWriteoffCollateral100.0100.0100.0100.0100.0

fhn:GeneralCICollateralDependentLoans


Financing
Period End2020-12-31
Value26
Percentage of FinancingReceivableAllowanceforCreditLossWriteoffCollateral72.2

fhn:FinancingReceivableCreditLossInitialReserveOnLoansAcquired fhn:ReserveForFundedAndUnfundedCommitments

fhn:FinancingReceivableCreditLossInitialReserveOnLoansAcquired

us-gaap:UnfundedLoanCommitment


Financing
Period End2020-12-312020-09-30
Value-0.25941
Percentage of FinancingReceivableCreditLossInitialReserveOnLoansAcquired100.0100.0

fhn:FinancingReceivableCreditLossInitialReserveOnLoansAcquired fhn:ReserveForFundedAndUnfundedCommitments, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:UnfundedLoanCommitment, us-gaap:CommercialPortfolioSegment, fhn:CommercialFinancialAndIndustrialPortfolioSegment


Financing
Period End2020-12-312020-09-30
Value0.2411
Percentage of FinancingReceivableCreditLossInitialReserveOnLoansAcquired-92.728.5

us-gaap:UnfundedLoanCommitment, us-gaap:CommercialPortfolioSegment, us-gaap:CommercialRealEstatePortfolioSegment


Financing
Period End2020-12-312020-09-30
Value-0.30626
Percentage of FinancingReceivableCreditLossInitialReserveOnLoansAcquired118.163.8

us-gaap:UnfundedLoanCommitment, us-gaap:ConsumerPortfolioSegment, fhn:ConsumerRealEstatePortfolioSegment


Financing
Period End2020-12-312020-09-30
Value-0.1853.185
Percentage of FinancingReceivableCreditLossInitialReserveOnLoansAcquired71.47.7

us-gaap:UnfundedLoanCommitment, us-gaap:ConsumerPortfolioSegment, fhn:CreditCardAndOther


Financing
Period End2020-09-30
Value0.008
Percentage of FinancingReceivableCreditLossInitialReserveOnLoansAcquired0.0

fhn:FixedIncome

fhn:FixedIncome


Fixed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value102126104110112958077665339443745555555505171776661515661484747
Percentage of FixedIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:FixedIncome us-gaap:StatementBusinessSegments

fhn:FixedIncome


Fixed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value10212510311011295807765533940374554555450
Percentage of FixedIncome100.099.299.699.799.999.9100.099.998.3100.099.091.499.799.899.999.899.799.9

fhn:RegionalBanking


Fixed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.01.00.4180.380.0810.1210.0020.0570.0460.0170.1030.1030.130.0810.0820.1350.1390.074
Percentage of FixedIncome0.00.80.40.30.10.10.00.10.10.00.30.20.30.20.10.20.30.1

fhn:GainLossOnBankOwnedLifeInsurance

fhn:GainLossOnBankOwnedLifeInsurance


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value924000.0196000.04246000.0-366000.01754000.0646000.01546000.01032000.01432000.0535000.02250000.005512000.0
Percentage of GainLossOnBankOwnedLifeInsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

fhn:GainLossRelatedToChangesInFairValueOfTermBorrowingsDueToInterestRateRisk us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument, us-gaap:HedgingDesignation

fhn:GainLossRelatedToChangesInFairValueOfTermBorrowingsDueToInterestRateRisk

us-gaap:LongTermDebt, us-gaap:Debt, us-gaap:DesignatedAsHedgingInstrument


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.3331.4120.72-4.465-0.358-2.004-6.605-4.266-6.6880.241.526.555.7120.941-1.8042.733227.152
Percentage of GainLossRelatedToChangesInFairValueOfTermBorrowingsDueToInterestRateRisk100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:GainsLossesRelatedToInterestRateDerivatives us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument, us-gaap:HedgingDesignation

fhn:GainsLossesRelatedToInterestRateDerivatives

fhn:CustomerInterestRateContracts, fhn:CustomerInterestRateContractsHedging, us-gaap:DesignatedAsHedgingInstrument


Gains
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value46214159-14.0515195-31.69644502941-10.62-4.459-24.724-11.346-0.184.099-3.276-41.718-1.964
Percentage of GainsLossesRelatedToInterestRateDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:OffsettingUpstreamInterestRateContracts, fhn:CustomerInterestRateContractsHedging, us-gaap:DesignatedAsHedgingInstrument


Gains
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-46.0-214.0-159.65414-15.844-195.55231-44.375-50.706-29.112-41.582104.45924110.18-4.0993.276411.964
Percentage of GainsLossesRelatedToInterestRateDerivatives-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0

us-gaap:InterestRateSwap, us-gaap:Debt, us-gaap:DesignatedAsHedgingInstrument


Gains
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-0.776-1.421-0.7374.9340.2711.9946.6974.2796.738-0.246-1.545-6.595-5.808-0.9661.808-2.8-22.904-7.254
Percentage of GainsLossesRelatedToInterestRateDerivatives-0.510.1-4.72.5-0.94.513.214.716.22.334.626.751.2536.744.185.554.9369.3

fhn:InterestIncomeDebtSecuritiesAvailableForSaleOperatingTaxExempt

fhn:InterestIncomeDebtSecuritiesAvailableForSaleOperatingTaxExempt


Interest
Period End2020-09-302019-09-30
Value1421000.0352000.0
Percentage of InterestIncomeDebtSecuritiesAvailableForSaleOperatingTaxExempt100.0100.0

fhn:InterestIncomeDebtSecuritiesAvailableForSaleOperatingTaxable

fhn:InterestIncomeDebtSecuritiesAvailableForSaleOperatingTaxable


Interest
Period End2020-09-302019-09-30
Value2428
Percentage of InterestIncomeDebtSecuritiesAvailableForSaleOperatingTaxable100.0100.0

fhn:LoansReceivableHeldForSaleReconciliationToCashFlowMortgageLoansTransferredToHeldForInvestment

fhn:LoansReceivableHeldForSaleReconciliationToCashFlowMortgageLoansTransferredToHeldForInvestment


Loans
Period End2021-06-302021-03-312020-06-302020-03-31
Value-27000000.0-3000000.009000000.0
Percentage of LoansReceivableHeldForSaleReconciliationToCashFlowMortgageLoansTransferredToHeldForInvestment100.0100.00.0100.0

fhn:LoansReceivableHeldForSaleReconciliationToCashFlowOriginationsAndPurchases

fhn:LoansReceivableHeldForSaleReconciliationToCashFlowOriginationsAndPurchases


Loans
Period End2021-06-302021-03-312020-06-302020-03-31
Value9744460.02499
Percentage of LoansReceivableHeldForSaleReconciliationToCashFlowOriginationsAndPurchases100.0100.00.0100.0

fhn:MortgageBanking

fhn:MortgageBanking


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value385356654.1382.4313.5782.0192.5721.8863.0772.5332.4311.770.7661.3541.2681.2612.825.5240.5981.2731.1490.7610.3761.5841.808418.861193.853145.5899.3738.287109.889231812322716536334
Percentage of MortgageBanking100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:NetGainsLossOnFinancialAssetsMeasuredOnNonrecurringBasis us-gaap:FairValueByMeasurementFrequency

fhn:NetGainsLossOnFinancialAssetsMeasuredOnNonrecurringBasis

us-gaap:FairValueMeasurementsNonrecurring


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-4000000.0-8000000.016633000.0-19353000.0-3093000.0-6598000.06960000.0-17223000.0-5979000.0-1308000.0-5268000.0-2993000.0-2102000.0-1996000.0-1743000.0-3271000.0-2697000.0-933000.0-253000.0-1028000.0-790000.0-5909000.0
Percentage of NetGainsLossOnFinancialAssetsMeasuredOnNonrecurringBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:NetGainsOrLossesLoansHeldForSale fhn:LoansHeldForSaleByType, us-gaap:FairValueByMeasurementFrequency

fhn:NetGainsOrLossesLoansHeldForSale

fhn:SmallBusinessAdministrations, us-gaap:FairValueMeasurementsNonrecurring


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-2000000.0-1000000.0-1560000.0-1247000.0-1391000.0-977000.0-1074000.0-683000.0-1213000.0-1425000.0-206000.0-370000.0-86000.0-1140000.0-33000.0-1000.0000
Percentage of NetGainsOrLossesLoansHeldForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

fhn:NetGainsOrLossesLoansHeldForSale us-gaap:MortgageLoansOnRealEstateDescriptionLoanCategory, us-gaap:FairValueByMeasurementFrequency

us-gaap:FirstMortgage, us-gaap:FairValueMeasurementsNonrecurring


Net
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value31000.0-4000.05000.05000.02000.010000.015000.06000.03000.0-1000.05000.014000.06000.0
Percentage of NetGainsOrLossesLoansHeldForSale-2.00.3-0.40.0-0.2-0.9-2.20.0-0.20.1-2.4-3.8-7.0

fhn:NetGainsOrLossesLoansNetOfUnearnedIncome us-gaap:FairValueByMeasurementFrequency

fhn:NetGainsOrLossesLoansNetOfUnearnedIncome

us-gaap:FairValueMeasurementsNonrecurring


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1000000.0-7000000.019040000.0-17444000.0-1274000.0-4839000.08695000.0-15559000.0-4639000.0200000.0-1861000.0363000.0665000.0502000.0-231000.0-2388000.0-452000.0484000.01194000.0461000.0353000.0-4672000.0
Percentage of NetGainsOrLossesLoansNetOfUnearnedIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:NetGainsOrLossesOtherAssets us-gaap:FairValueByMeasurementFrequency

fhn:NetGainsOrLossesOtherAssets

us-gaap:FairValueMeasurementsNonrecurring


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-882000.0-346000.0-426000.0-346000.0-460000.0-407000.0-267000.0-675000.0-1126000.0-1370000.0-1079000.0-1137000.0-822000.0-762000.0-942000.0-942000.0-1024000.0-788000.0-831000.0-706000.0
Percentage of NetGainsOrLossesOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:NetGainsOrLossesOtherRealEstateOwned us-gaap:FairValueByMeasurementFrequency

fhn:NetGainsOrLossesOtherRealEstateOwned

us-gaap:FairValueMeasurementsNonrecurring


Net
Period End2021-06-30
Value-1000000.0
Percentage of NetGainsOrLossesOtherRealEstateOwned100.0

fhn:NetGainsOrLossesRealEstateAcquiredByForeclosure us-gaap:FairValueByMeasurementFrequency

fhn:NetGainsOrLossesRealEstateAcquiredByForeclosure

us-gaap:FairValueMeasurementsNonrecurring


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-797000.0-34000.0-142000.0-27000.0-671000.0-282000.0-9000.035000.0-401000.0-776000.0-262000.0-1160000.0-334000.0-41000.0-176000.0-445000.0-480000.0-711000.0-314000.0-536000.0
Percentage of NetGainsOrLossesRealEstateAcquiredByForeclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:PaymentsForCancellationOfCommonStock

fhn:PaymentsForCancellationOfCommonStock


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value-754000.05862000.001892000.000
Percentage of PaymentsForCancellationOfCommonStock100.0100.00.0100.00.00.0

fhn:PaymentsToAcquirePropertyPlantAndEquipmentExcludingAcquistionRelatedPurchases

fhn:PaymentsToAcquirePropertyPlantAndEquipmentExcludingAcquistionRelatedPurchases


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1610.02214137.60320165.4926.995157.8787.0318229.897119.31821141511159.1945.698109.4856.468113.7528.43.004105.656
Percentage of PaymentsToAcquirePropertyPlantAndEquipmentExcludingAcquistionRelatedPurchases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:SegmentReportingAverageAssets

fhn:SegmentReportingAverageAssets


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value87559854016535816834793443551384419404124340883254007740173403501072288742887628806406276092682826618181253142541425644208238042365123916-210.302241922459825078-32.823250892501425200110247782451824570372575725600
Percentage of SegmentReportingAverageAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:SegmentReportingAverageAssets us-gaap:StatementBusinessSegments

fhn:FixedIncome


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value2005521503163713002326037648.889288231272849-27.00132473251348115525862696187517230524702270192189241624473020032074
Percentage of SegmentReportingAverageAssets22.925.2250.53.76.88.62.36.97.67.0-104.08.18.18.614.59.09.36.54.28.49.28.510.78.69.59.514.88.48.8

fhn:NonStrategic


Segment
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value714772839-42.06100010921093-68.262126612171284-42.295143115211616-55.538184019492041-70.429224524082555-127.388299431773404-89.983398741664375-104.602477349795238-176.168587960906367-185.01969667344
Percentage of SegmentReportingAverageAssets0.91.61.9-10.92.42.62.7-262.83.23.03.2-3.95.05.35.6-13.76.77.37.7-38.88.99.510.0-61.112.613.414.242.816.516.917.4318.719.019.920.8-159.023.724.825.9-494.227.028.7

fhn:RegionalBanking


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value4219942371-12368.906643713573232164560316263020928889192865928746284741102191581843117955439175821657515944183149911502314228188135771305512617-62.631129221293912956148129331235412182219114321109011032521146211237
Percentage of SegmentReportingAverageAssets48.249.6-189.378.874.573.9145.875.473.270.775.671.571.670.6102.866.463.862.3108.163.761.859.9101.259.259.155.590.557.055.252.829.853.452.651.7-453.051.649.448.3198.546.145.244.9139.644.543.9

us-gaap:Corporate


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value253052152733031359581686784-143.039643068148050101690469567110-143.6095698622673595.575880583363624858885565641411652295344585629516650685254-66.691515152935427235123
Percentage of SegmentReportingAverageAssets28.925.250.516.617.015.6-37.215.316.519.7391.217.217.317.6-13.419.721.625.51.421.321.723.926.923.321.925.055.922.022.624.5-13.921.420.621.0203.220.521.221.521.620.7

fhn:StockOptionsWeightedAverageExercisePrice

fhn:StockOptionsWeightedAverageExercisePrice


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value20.9818.110.4215.3215.818.73-0.2421.2121.0321.77-0.123.6724.3824.83-0.0825.025.2426.081.0824.9522.6822.45-0.0624.2224.2617.17-0.3322.74
Percentage of StockOptionsWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:TransferFromLoansToLoansHeldForSale

fhn:TransferFromLoansToLoansHeldForSale


Transfer
Period End2021-06-302021-03-31
Value-28.0-3.0
Percentage of TransferFromLoansToLoansHeldForSale100.0100.0

fhn:TransferFromLoansToRealEstateAcquiredByForeclosure

fhn:TransferFromLoansToRealEstateAcquiredByForeclosure


Transfer
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
Value0.0130.0990.7721.1162.6872.9661.7361.6070.7187.3780.9343.0761.062.381.9861.1983.0263.7452.8140.7322.7581.4794.8313.4623.8675.5054.6036.902134.544.0031.2177.5727.658.129101316171629505347
Percentage of TransferFromLoansToRealEstateAcquiredByForeclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:TransferfromLoansHeldForSaletoTradingSecurities

fhn:TransferfromLoansHeldForSaletoTradingSecurities


Transferfrom
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3734986584792063972962223764254813072663331745642650.0
Percentage of TransferfromLoansHeldForSaletoTradingSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

fhn:TrustServicesAndInvestmentManagement

fhn:TrustServicesAndInvestmentManagement


Trust
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value141212117.7337.1957.4347.1637.8887.0266.9597.4388.1327.2777.1166.953
Percentage of TrustServicesAndInvestmentManagement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:TrustServicesAndInvestmentManagement us-gaap:StatementBusinessSegments

fhn:RegionalBanking


Trust
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value14129.438147.757.2137.4527.197.9027.0566.9617.4538.1477.2927.1316.968
Percentage of TrustServicesAndInvestmentManagement100.0100.076.5124.3100.2100.3100.2100.4100.2100.4100.0100.2100.2100.2100.2100.2

us-gaap:Corporate


Trust
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-2.858-0.017-0.018-0.018-0.027-0.014-0.03-0.002-0.015-0.015-0.015-0.015-0.015
Percentage of TrustServicesAndInvestmentManagement-24.3-0.2-0.3-0.2-0.4-0.2-0.4-0.0-0.2-0.2-0.2-0.2-0.2

us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-359.0828200-308.98840-1416.477-7.56125511119264-449.444162-299.37233663-464.454-129.586382-305.91628-163.23110338197-69.18168150-28.821283263129-9.3177.32215395-27.035-195.65742222-95.481-267.803616618-415.001-112.746
Percentage of AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount us-gaap:BalanceSheetLocation

us-gaap:AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount

fhn:LowIncomeHousingTaxCreditsMember


Affordable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value8.09.05.9066.7384.7584.5982.7813.6073.5223.6292.5512.5842.562.5372.9363.1032.5982.42.4282.615-2.534-2.523-2.361-2.363-2.363-2.363-2.463-2.462
Percentage of AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fhn:OtherTaxBenefitsRelatedToQualifyingLihtcInvestments


Affordable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value3.03.01.8283.0342.5832.5550.7071.7511.6091.614.3741.4120.8940.690.7382.4780.910.9191.4696.131-1.069-1.11-8.369-0.819-0.755-0.844-1.86-1.859
Percentage of AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount37.533.331.045.054.355.625.448.545.744.4171.554.634.927.225.179.935.038.360.5234.542.244.0354.534.732.035.775.575.5

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization us-gaap:BalanceSheetLocation

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization

fhn:LowIncomeHousingTaxCreditsMember


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value9.09.03.4148.2735.7525.5612.7614.4364.2873.9984.6991.5472.1912.3565.6233.7742.3622.2784.155.4452.332.2986.8432.2932.182.182.472.47
Percentage of AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfMortgageServicingRightsMSRs

us-gaap:AmortizationOfMortgageServicingRightsMSRs


Amortization
Period End2020-12-31
Value1587000.0
Percentage of AmortizationOfMortgageServicingRightsMSRs100.0

us-gaap:AssetImpairmentCharges us-gaap:FairValueByAssetClass, us-gaap:RestructuringPlan, us-gaap:StatementBusinessSegments

us-gaap:AssetImpairmentCharges

fhn:DispositionofAcquiredProperties, fhn:A2019BusinessOptimization, us-gaap:Corporate


Asset
Period End2021-06-302021-03-312020-09-302020-06-30
Value0.03.04.20.0
Percentage of AssetImpairmentCharges0.0100.0100.00.0

us-gaap:AssetImpairmentCharges us-gaap:StatementBusinessSegments

us-gaap:Corporate


Asset
Period End2021-06-302021-03-312018-12-312018-09-302018-06-302017-12-312017-09-30
Value0.0331.90.71.33.02.0
Percentage of AssetImpairmentCharges0.01100.00.00.00.00.00.0

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss

fhn:IBERIABANKCorporation


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value31771226218
Percentage of BusinessAcquisitionsProFormaNetIncomeLoss100.0100.0100.0100.0

us-gaap:BusinessCombinationBargainPurchaseGainRecognizedAmount

us-gaap:BusinessCombinationBargainPurchaseGainRecognizedAmount


Business
Period End2020-12-312020-09-30
Value0.85532
Percentage of BusinessCombinationBargainPurchaseGainRecognizedAmount100.0100.0

us-gaap:BusinessCombinationBargainPurchaseGainRecognizedAmount us-gaap:BusinessAcquisition

fhn:IBERIABANKCorporation


Business
Period End2021-03-312020-07-01
Value1.0532
Percentage of BusinessCombinationBargainPurchaseGainRecognizedAmount0.00.0

us-gaap:BusinessCombinationBargainPurchaseGainRecognizedAmount us-gaap:StatementBusinessSegments

us-gaap:Corporate


Business
Period End2020-12-312020-09-30
Value0.85532
Percentage of BusinessCombinationBargainPurchaseGainRecognizedAmount100.0100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferred1

fhn:IBERIABANKCorporation


Business
Period End2020-07-01
Value2502
Percentage of BusinessCombinationConsiderationTransferred1100.0

fhn:TruistBankBranches


Business
Period End2020-07-17
Value521
Percentage of BusinessCombinationConsiderationTransferred10.0

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable us-gaap:AwardType, us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable

us-gaap:StockCompensationPlan, fhn:IBERIABANKCorporation


Business
Period End2020-07-01
Value28
Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable100.0

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable us-gaap:BusinessAcquisition

fhn:IBERIABANKCorporation


Business
Period End2020-07-01
Value28
Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable100.0

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable us-gaap:BusinessAcquisition, us-gaap:EquityInterestIssuedOrIssuableByType

fhn:IBERIABANKCorporation, us-gaap:CommonStock


Business
Period End2020-07-01
Value2243
Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable8010.7

fhn:IBERIABANKCorporation, us-gaap:PreferredStock


Business
Period End2020-07-01
Value231
Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable825.0

us-gaap:BusinessCombinationIntegrationRelatedCosts

us-gaap:BusinessCombinationIntegrationRelatedCosts


Business
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value32704.8654.1728.9898.6475.66114331
Percentage of BusinessCombinationIntegrationRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationIntegrationRelatedCosts us-gaap:BusinessAcquisition

fhn:IBERIABANKCorporation


Business
Period End2020-12-312020-09-302020-06-302020-03-31
Value32959.4561.605
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.0194.438.5

fhn:TruistBankBranches


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value6.1384.825-1.2968.989
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.00.0100.0

us-gaap:BusinessCombinationIntegrationRelatedCosts us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation

fhn:IBERIABANKCorporation, fhn:CharitableContributionExpense


Business
Period End2020-12-312020-09-30
Value0.020
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.0

fhn:IBERIABANKCorporation, fhn:EmployeeCompensationIncentivesAndBenefits


Business
Period End2020-12-312020-09-302020-06-302020-03-31
Value20344.7050.689
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.096.716.5

fhn:IBERIABANKCorporation, fhn:MiscellaneousExpense


Business
Period End2020-12-312020-09-302020-06-302020-03-31
Value5.605111.0030.254
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.020.66.1

fhn:IBERIABANKCorporation, fhn:ProfessionalFees


Business
Period End2020-12-312020-09-302020-06-302020-03-31
Value6.606293.7480.662
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.077.015.9

fhn:TruistBankBranches, fhn:AllOtherExpense


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value-0.2071.7231.9752.84
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.00.031.6

fhn:TruistBankBranches, fhn:ContractEmploymentAndOutsourcing


Business
Period End2020-12-312020-09-302019-09-30
Value0.0710.2030.223
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.02.5

fhn:TruistBankBranches, fhn:EmployeeCompensationIncentivesAndBenefits


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value5.2140.303-3.4621.473
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.00.016.4

fhn:TruistBankBranches, fhn:MiscellaneousExpense


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value1.7240.951-0.171.022
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.00.011.4

fhn:TruistBankBranches, fhn:OccupancyNet


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value0.6580.449-0.547-0.076
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.00.0-0.8

fhn:TruistBankBranches, fhn:ProfessionalFees


Business
Period End2020-12-312020-09-302019-12-312019-09-30
Value-1.3221.1961.1483.507
Percentage of BusinessCombinationIntegrationRelatedCosts0.00.00.039.0

us-gaap:BusinessCombinationIntegrationRelatedCosts us-gaap:IncomeStatementLocation

fhn:AllOtherExpense


Business
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value12432.611.8742.841.0961.0891.5492317
Percentage of BusinessCombinationIntegrationRelatedCosts37.561.453.644.931.612.719.213.653.954.3

fhn:EmployeeCompensationIncentivesAndBenefits


Business
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value16210.0870.3961.4731.4721.5173.1123.8495.237
Percentage of BusinessCombinationIntegrationRelatedCosts50.030.01.89.516.417.026.827.48.916.7

fhn:OccupancyNet


Business
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value0.03.0-0.082-0.025-0.0761.5050.1180.1152.229
Percentage of BusinessCombinationIntegrationRelatedCosts0.04.3-1.7-0.6-0.817.42.11.05.2

fhn:ProfessionalFees


Business
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value4.03.01.3270.7993.5074.4781.8674.5938.9915.633
Percentage of BusinessCombinationIntegrationRelatedCosts12.54.327.319.239.051.833.040.520.918.0

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual


Business
Period End2020-09-30
Value-41750000.0
Percentage of BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual100.0

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths


Cash
Period End2021-06-302021-03-312020-12-31
Value-3.0251.5
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths100.0100.0100.0

us-gaap:DebtAndEquitySecuritiesRealizedGainLoss

us-gaap:DebtAndEquitySecuritiesRealizedGainLoss


Debt
Period End2021-06-302020-12-312020-09-302020-06-302019-09-30
Value11-3.362-1.17-1.00.097
Percentage of DebtAndEquitySecuritiesRealizedGainLoss100.0100.0100.0100.0100.0

us-gaap:DebtAndEquitySecuritiesRealizedGainLoss us-gaap:StatementBusinessSegments

us-gaap:Corporate


Debt
Period End2021-06-302020-12-312020-09-302020-06-302019-09-30
Value11-3.362-1.17-1.00.097
Percentage of DebtAndEquitySecuritiesRealizedGainLoss100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleGainLoss

us-gaap:DebtSecuritiesAvailableForSaleGainLoss


Debt
Period End2021-06-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0000-267000.0000052000.0
Percentage of DebtSecuritiesAvailableForSaleGainLoss0.00.00.00.0100.00.00.00.00.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-30
Value1442000.000000000052000.06000.0
Percentage of DebtSecuritiesAvailableForSaleRealizedGain100.00.00.00.00.00.00.00.00.00.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss


Debt
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-30
Value-1323000.00000-267000.0000052000.06000.0
Percentage of DebtSecuritiesAvailableForSaleRealizedGainLoss100.00.00.00.00.0100.00.00.00.00.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-30
Value-6765000.02765000.00000267000.0000000
Percentage of DebtSecuritiesAvailableForSaleRealizedLoss100.0100.00.00.00.00.0100.00.00.00.00.00.00.0

us-gaap:DebtSecuritiesRealizedGainLoss

us-gaap:DebtSecuritiesRealizedGainLoss


Debt
Period End2021-06-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value110.00.00.0-0.2670.00.00.00.00.0520.0330.001
Percentage of DebtSecuritiesRealizedGainLoss100.00.00.00.0100.00.00.00.00.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-06-302020-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-30
Value-2.0-2.0-3.0-3.021-3.164-2.95616-2.38-2.38
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-09-302020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value8000.08000.08000.000000024000.023000.024000.024000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.0100.0100.00.00.00.00.00.00.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0530.3250.3110.3110.2840.3140.2690.2690.2680.2680.2690.2690.2370.2360.2370.237
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.04.06.6637.06.1696.1689.2279.3359.1739.1738.2248.2228.2268.2259.0049.238.898.891
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets0.00.012571.72153.81983.61983.33248.92972.93410.03410.03068.73067.93058.03057.63799.23911.03751.13751.5

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0850.3040.3070.3040.3530.3580.3510.3510.3270.3280.3270.3270.3260.3280.3250.326
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.04.06.3375.8445.915.9097.5527.5057.5757.5756.9696.9356.9876.9867.3457.2767.387.379
Percentage of DefinedBenefitPlanInterestCost0.00.07455.31922.41925.11943.82139.42096.42158.12158.12131.22114.32136.72136.42253.12218.32270.82263.5

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-06-302020-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.04.03.03.01.7811.8881.7271.7270.7440.4480.8930.89
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanOtherCosts

us-gaap:DefinedBenefitPlanOtherCosts


Defined
Period End2021-03-31
Value2000000.0
Percentage of DefinedBenefitPlanOtherCosts100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0250.0240.0250.0230.0230.0240.0240.0330.0330.0340.0330.0270.0260.0270.027
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0080.0080.0080.0070.0070.0080.0080.010.0110.010.010.0090.0090.010.009
Percentage of DefinedBenefitPlanServiceCost32.033.332.030.430.433.333.330.333.329.430.333.334.637.033.3

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DepreciationAmortizationAndAccretionNet


Depreciation
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-06-302017-03-31
Value-18.0-14.0-25.8864.1743.6644.174-3.7991.257-1.046-7.332-1.6138.0816.207
Percentage of DepreciationAmortizationAndAccretionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value85848447474444443839393921212121161616161414141412111111111112122.4692.5032.4312.532.5542.6192.5442.607
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarningsUnappropriated


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value8584844747444444393939
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsPreferredStock

us-gaap:DividendsPreferredStock


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312010-12-312010-09-302010-06-30
Value8.08.07.178121.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.551.1880.00.00.00.0631414
Percentage of DividendsPreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0

us-gaap:DividendsPreferredStock us-gaap:StatementEquityComponents

us-gaap:RetainedEarningsUnappropriated


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value8.08.0121.551.551.551.551.551.551.551.55
Percentage of DividendsPreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarlyRepaymentOfSeniorDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:EarlyRepaymentOfSeniorDebt

fhn:SeniorDebtMaturingInDecember2020, us-gaap:SeniorSubordinatedNotes


Early
Period End2020-11-30
Value500
Percentage of EarlyRepaymentOfSeniorDebt100.0

us-gaap:EquipmentExpense

us-gaap:EquipmentExpense


Equipment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value121113128.3848.5528.5978.1978.3758.8298.9839.42310109.536.6267.0366.3517.9596.0857.1826.1598.5687.0937.9837.227.5237.157.4427.8498.4317.897.5977.827.917.9317.7897.6167.7488.7958.5037.9168.347.1277.5725.962
Percentage of EquipmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiGainLoss


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-3.362-1.17-1.4930.025-0.0030.0970.3160.031-0.0282120.0310.034
Percentage of EquitySecuritiesFvNiGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3000000.03000000.010600000.01200000.04800000.0-5700000.02100000.0400000.01200000.03400000.0-3600000.01000000.0700000.0300000.0
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss us-gaap:FairValueByAssetClass

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss

fhn:LoansHeldForInvestment


Fair
Period End2020-09-30
Value367000.0
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss100.0

fhn:LoansHeldForSale


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-31
Value329000.0-80000.0422000.0329000.0569000.0443000.0321000.0495000.0253000.0277000.0542000.0169000.0410000.0922000.0
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss0.0-21.80.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestOnlyStrip


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-6994000.01192000.0-959000.0-865000.0-734000.0-1977000.0-543000.0-894000.0-746000.0-215000.0-128000.019000.0-49000.0-72000.0-53000.0
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss0.0324.80.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:InterestOnlyStrip, us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-302021-03-312020-06-302020-03-31
Value-1000000.02000000.0-1000000.0-1000000.0
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss0.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1 us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

fhn:LoansHeldForInvestment


Fair
Period End2020-09-30
Value-418000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.0

fhn:LoansHeldForSale


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-31
Value329000.0-80000.0422000.0329000.0569000.0443000.0321000.0495000.0253000.0277000.0540000.0169000.0410000.0922000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings10.019.10.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestOnlyStrip


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-2190000.0-1282000.0-1233000.0-1295000.0-1905000.0-1421000.0-141000.0-1258000.0-1238000.0-456000.0-296000.01592000.0914000.0-160000.0267000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings10.0306.70.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-530000.0-157000.0-157000.0-156000.0-157000.0-157000.08000.021000.0033000.0124000.016000.068000.092000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings10.037.60.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1 us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:InterestOnlyStrip, us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-302021-03-312020-06-302020-03-31
Value-1000000.05000000.0-1000000.0-1000000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings10.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases

us-gaap:InterestOnlyStrip


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.5190.00.05.4810.00.00.00.0860.00.00.00.00.00.01.413
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases100.00.00.0100.00.00.00.0100.00.00.00.00.00.00.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

fhn:LoansHeldForSale, us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-30
Value5.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases0.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

fhn:LoansHeldForInvestment


Fair
Period End2020-09-30
Value2.927
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales100.0

us-gaap:InterestOnlyStrip


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2.2410.0560.08.7038.8571114135.6132.0340.09.1938.14
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales0.01.90.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

fhn:LoansHeldForSale, us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-30
Value10.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales0.0

us-gaap:InterestOnlyStrip, us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-302021-03-312020-03-31
Value6.0278.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales0.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements

fhn:LoansHeldForInvestment


Fair
Period End2020-09-30
Value2312000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements100.0

fhn:LoansHeldForSale


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-31
Value731000.0748000.0743000.0778000.0945000.01126000.0990000.01017000.0216000.0759000.02134000.0789000.0827000.01574000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements0.032.40.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

fhn:LoansHeldForInvestment, us-gaap:FairValueInputsLevel3


Fair
Period End2021-03-31
Value2000000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements0.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet

fhn:LoansHeldForInvestment


Fair
Period End2020-09-30
Value4.283
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet100.0

us-gaap:InterestOnlyStrip


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3.0898.8513.5758.485141018176.3927.0643.359.0645.3732.122.774
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet0.0206.70.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

fhn:LoansHeldForInvestment, us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-302021-03-31
Value-17.03.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet0.00.0

fhn:LoansHeldForSale, us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-30
Value18
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet0.0

us-gaap:InterestOnlyStrip, us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-302021-03-312020-06-302020-03-31
Value15123.08.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet0.00.00.00.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-212000.0-76000.0-201000.0-511000.0-54000.0-4008000.0-19000.0135000.0227000.0-530000.0-4079000.0-296000.0-417000.0-129000.0-49000.0-1000.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel3


Fair
Period End2021-03-31
Value-9000000.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss0.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value311000.0-599000.0-201000.0-511000.0-54000.0-4008000.0-19000.0135000.0227000.0-529000.0-4079000.0-296000.0-417000.0-129000.0-49000.0-1000.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel3


Fair
Period End2021-03-31
Value-9000000.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings0.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-2692000.0-2446000.0-2446000.0-2416000.0-5344000.0-2468000.0-2444000.0-2435000.0-2445000.0-3842000.0-299000.0-296000.0-302000.0-299000.0-299000.0-296000.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-302021-03-312020-06-302020-03-31
Value-3000000.0-2000000.0-2000000.0-2000000.0
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements0.00.081.882.8

us-gaap:FairValueOptionChangesInFairValueGainLoss1 fhn:FairValueOfLoans, us-gaap:IncomeStatementLocation

us-gaap:FairValueOptionChangesInFairValueGainLoss1

fhn:MortgageBankingNoninterestIncome, fhn:LoansHeldForInvestment


Fair
Period End2020-09-30
Value-0.418
Percentage of FairValueOptionChangesInFairValueGainLoss1100.0

fhn:MortgageBankingNoninterestIncome, fhn:LoansHeldForSale


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value4.0-9.01.3821.8670.4220.3290.5690.4430.3210.4950.2530.2770.540.169-0.1750.390.410.9221.0051.604
Percentage of FairValueOptionChangesInFairValueGainLoss10.00.00.0-446.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FeesAndCommissionsMortgageBankingAndServicing

us-gaap:FeesAndCommissionsMortgageBankingAndServicing


Fees
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value385356654.02.03.5232.019
Percentage of FeesAndCommissionsMortgageBankingAndServicing100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FeesAndCommissionsMortgageBankingAndServicing us-gaap:IncomeStatementLocation

fhn:MortgageBankingAndTitleIncome


Fees
Period End2021-06-302021-03-312020-12-312020-09-302019-09-30
Value0.01.00.60.60.5
Percentage of FeesAndCommissionsMortgageBankingAndServicing0.01.91.10.924.8

us-gaap:FeesAndCommissionsMortgageBankingAndServicing us-gaap:StatementBusinessSegments

fhn:FixedIncome


Fees
Period End2021-06-302021-03-312020-06-302020-03-31
Value38524.02.0
Percentage of FeesAndCommissionsMortgageBankingAndServicing100.098.1100.0100.0

fhn:NonStrategic


Fees
Period End2020-09-302019-09-30
Value-0.0890.376
Percentage of FeesAndCommissionsMortgageBankingAndServicing-0.118.6

fhn:RegionalBanking


Fees
Period End2020-09-302019-09-30
Value651.643
Percentage of FeesAndCommissionsMortgageBankingAndServicing100.181.4

us-gaap:Corporate


Fees
Period End2021-06-302021-03-312020-12-312020-09-30
Value0.01.00.9770.023
Percentage of FeesAndCommissionsMortgageBankingAndServicing0.01.91.70.0

us-gaap:FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease us-gaap:BusinessAcquisition

us-gaap:FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease

fhn:IBERIABANKCorporation


Financing
Period End2020-09-30
Value284
Percentage of FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value161511116.2986.2428.8049.7377.0616.0146.2897.9798.2767.1229.1698.287.1199.313118.112108.404151010-8.87973-12.697-10.146-8.129-12.099-9.822-11.988-9.355-11.396-7.715-9.763-10.748-10.624-14.209
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, fhn:CommercialFinancialAndIndustrialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5.06.03.7923.21.0730.9352.1513.2450.5190.8290.5941.0521.0361.519
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery31.240.032.427.217.015.024.433.37.413.89.413.212.521.3

us-gaap:CommercialPortfolioSegment, us-gaap:CommercialRealEstatePortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.02.01.0282.2430.1560.5730.3390.181-0.0880.057-0.0090.2670.0750.006
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery6.213.38.819.12.59.23.91.9-1.20.9-0.13.30.90.1

us-gaap:ConsumerPortfolioSegment, fhn:ConsumerRealEstatePortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8.06.05.1475.3113.9873.5554.6844.3494.5143.4534.5375.3025.4444.383
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery50.040.044.045.263.357.053.244.763.957.472.166.465.861.5

us-gaap:ConsumerPortfolioSegment, fhn:CreditCardAndOther


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.01.01.7420.9971.0821.1790.7871.2561.1051.0870.9960.8041.091.149
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery12.56.714.98.517.218.98.912.915.618.115.810.113.216.1

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312011-09-30
Value6.023417822131124121040
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs fhn:SubClassofFinancingReceivable, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fhn:PurchasedCreditDeterioratedLoans, us-gaap:CommercialPortfolioSegment, fhn:CommercialFinancialAndIndustrialPortfolioSegment


Financing
Period End2020-12-31
Value-0.3
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs-0.7

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, fhn:CommercialFinancialAndIndustrialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.0163469186.7515.711186.593.101
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs33.369.683.888.679.550.247.976.453.929.5

us-gaap:CommercialPortfolioSegment, us-gaap:CommercialRealEstatePortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.03.00.8183.540.0610.5810.0760.3690.1210.434
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs0.013.02.04.50.34.30.61.51.04.1

us-gaap:ConsumerPortfolioSegment, fhn:ConsumerRealEstatePortfolioSegment