FCNCA


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

Table of contents


us-gaap:StatementClassOfStock
us-gaap:CommonStockValue
dei:LegalEntity, us-gaap:StatementClassOfStock
us-gaap:PreferredStockParOrStatedValuePerShare
dei:LegalEntity, us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

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

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestAndFeeIncomeLoansAndLeases
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:InterestExpense

us-gaap:InterestIncomeExpenseNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents
us-gaap:ProductOrService
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:Assets
us-gaap:StatementEquityComponents

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquity
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:TierOneRiskBasedCapital
us-gaap:StatementEquityComponents
us-gaap:Cash
us-gaap:StatementEquityComponents
us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:EquitySecuritiesFvNi
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:StatementEquityComponents

us-gaap:OtherAssets
us-gaap:StatementEquityComponents

us-gaap:TimeDepositMaturitiesYearOne

us-gaap:LongTermDebt
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType
us-gaap:StatementEquityComponents

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementClassOfStock
us-gaap:CommonStockValue

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
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:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:VariableRate

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits

us-gaap:ProceedsFromRepaymentsOfShortTermDebt

fcnca:AccretionOfFDICSharedLossPayable

fcnca:DividendsDeclaredbutnotPaid

fcnca:FDICSharedLossPayableAdjustments

fcnca:FinancingReceivableAllowanceForCreditLossDecreaseCOVID19

fcnca:GainsLossesonSalesofForeclosedOtherRealEstate
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
fcnca:LoansAndLeasesReceivablePeriodIncreaseDecrease

fcnca:LoansHeldForSaleExchangedForInvestmentSecurities

fcnca:MaturitiesOfInvestmentSecuritiesUnsettled

fcnca:NetAmortizationOfPremiumsAndAccretionOfDiscounts

fcnca:NetChangeInOvernightInvestments

fcnca:NetIncreaseInLoansOutstandingInvestingActivities

fcnca:NoninterestIncomeMortgageBanking

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentForAccretionOnUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodBeforeTax
us-gaap:StatementEquityComponents
fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityBeforeTax
us-gaap:StatementEquityComponents
fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityNetOfTax
us-gaap:StatementEquityComponents
fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityTax

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentforAccretiononUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodTax

fcnca:OtherComprehensiveIncomeLossUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodBeforeTax

fcnca:OtherComprehensiveIncomeLossUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodNetOfTax

fcnca:PaymentsforProceedsfromMortgageServicingRightsOperatingActivities

fcnca:Proceedsfromissuanceofpreferredstocknetofissuancecosts

fcnca:ProcessingFeesPaidtoThirdParties

fcnca:PropertyPlantAndEquipmentOwnedTransferToRealEstateOwned

fcnca:RepaymentofFDICSharedLossPayable

fcnca:ServicingAssetsandServicingLiabilitiesatFairValueAssumptionsUsedtoEstimateFairValueCosttoServiceLoansPerLoan

fcnca:StockRepurchasedDuringPeriodAveragePricePerShare
us-gaap:SubsequentEventType

fcnca:TransferOfPortfolioLoansFromToLoandHeldforsaleNet

us-gaap:AmortizationOfMortgageServicingRightsMSRs

us-gaap:AvailableForSaleSecuritiesGrossRealizedGainLossNet

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:BusinessCombinationAcquisitionRelatedCosts
us-gaap:BusinessAcquisition

us-gaap:ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss

us-gaap:DebtSecuritiesGainLoss
us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanContributionsByEmployer
us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanServiceCost

us-gaap:DepreciationAmortizationAndAccretionNet
us-gaap:StatementClassOfStock
us-gaap:DividendsCommonStockCash
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
us-gaap:StatementClassOfStock
us-gaap:DividendsPreferredStockCash
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:EquipmentExpense

us-gaap:EquitySecuritiesFvNiGainLoss
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

us-gaap:FairValueOptionChangesInFairValueGainLoss1

us-gaap:FederalDepositInsuranceCorporationPremiumExpense

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

us-gaap:FinancingReceivableModificationsNumberOfContracts2

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2

us-gaap:FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1

us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate
us-gaap:BusinessAcquisition
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:BusinessAcquisition
us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAmountAtParValue
us-gaap:BusinessAcquisition
us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationDiscountPremium
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:BusinessAcquisition, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableSignificantPurchases
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:ForeclosedRealEstateExpense

us-gaap:GainLossOnSalesOfLoansNet

us-gaap:GainsLossesOnSalesOfOtherRealEstate

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInDemandDeposits

us-gaap:IncreaseDecreaseInInterestAndDividendsReceivable

us-gaap:IncreaseDecreaseInInterestPayableNet

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInPensionPlanObligations

us-gaap:IncreaseDecreaseInTimeDeposits

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndDividendIncomeSecurities

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm

us-gaap:InterestExpenseOther

us-gaap:InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase

us-gaap:InterestExpenseSubordinatedNotesAndDebentures

us-gaap:InterestIncomeDepositsWithFinancialInstitutions

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss

us-gaap:InterestPaid

us-gaap:MarketableSecuritiesGainLoss

us-gaap:MarketableSecuritiesRealizedGainLoss

us-gaap:MarketableSecuritiesUnrealizedGainLoss

us-gaap:NoninterestExpense

us-gaap:NoninterestIncome

us-gaap:NoninterestIncomeOther

us-gaap:OccupancyNet
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherLaborRelatedExpenses

us-gaap:OtherNoninterestExpense

us-gaap:OtherRealEstateAdditions
us-gaap:BusinessAcquisition

us-gaap:OtherRealEstateDisposals

us-gaap:OtherRealEstateValuationAdjustments

us-gaap:PaymentsForOriginationAndPurchasesOfLoansHeldForSale

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsToAcquireAvailableForSaleSecurities

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireHeldToMaturitySecurities

us-gaap:PaymentsToAcquireMarketableSecurities

us-gaap:PreferredStockDividendsAndOtherAdjustments

us-gaap:ProceedsFromDebtNetOfIssuanceCosts

us-gaap:ProceedsFromIssuanceOfPreferredStockAndPreferenceStock

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfLoansHeldForSale

us-gaap:ProceedsFromSaleOfOtherRealEstateHeldforinvestment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProvisionForLoanAndLeaseLosses

us-gaap:ProvisionForLoanLeaseAndOtherLosses

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents

us-gaap:RepaymentsOfOtherLongTermDebt

us-gaap:SalariesWagesAndOfficersCompensation

us-gaap:ServicingAssetAtAmortizedValueAdditions
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate

us-gaap:ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed

us-gaap:StockIssuedDuringPeriodSharesNewIssues
us-gaap:StatementEquityComponents
us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType
us-gaap:StockRepurchasedDuringPeriodShares

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

us-gaap:TransferToOtherRealEstate

us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries
us-gaap:StatementClassOfStock
dei:EntityCommonStockSharesOutstanding

fcnca:AccumulatedOtherComprehensiveIncomeLossTax
us-gaap:StatementEquityComponents
us-gaap:GuaranteeObligationsByNature
fcnca:AffordableHousingProgramInvestment
us-gaap:FinancialInstrument
fcnca:AggregateUnpaidPrincipalBalanceOfItemsForWhichFairValueOptionWasElectedAssets
us-gaap:BusinessAcquisition
fcnca:BusinessCombinationMeasurementPeriodAdjustmentAmount
us-gaap:BusinessAcquisition
fcnca:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits

fcnca:CapitalConservationBuffer

fcnca:CapitalrequiredforcommonequityTier1capitaltoriskweightedassets

fcnca:CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesPurchaseDiscountRemaining
fcnca:LoanDesignation
dei:LegalEntity
fcnca:CommonequityTier1requiredtobewellcapitalizedtoriskweightedassets
us-gaap:ConcentrationRiskByType
fcnca:ConcentrationofRiskLoanReceivablesIndustry

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecurities

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesAccumulatedGrossUnrealizedLossbeforeTax

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesCost

fcnca:DeferredTaxAssetsOperatingLeaseLiabilities

fcnca:DeferredTaxAssetsTaxDeferredExpenseExecutiveSeparationFromServiceAgreements

fcnca:DeferredTaxLiabilitiesDefinedBenefitPlanPensionLiability

fcnca:DeferredTaxLiabilitiesGainOnFDICAssistedTransactions

fcnca:DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets

fcnca:DeferredTaxLiabilityMarktoMarketSection475Amount
us-gaap:TitleOfIndividual
fcnca:DefinedBenefitPlanPresentValueOfAccruedLiability

fcnca:EquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax

fcnca:EquitySecuritiesFVNIAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument
fcnca:FairValueOfItemsForWhichFairValueOptionWasElectedAssets
us-gaap:FinancialInstrument
fcnca:FairValueOptionAggregateDifferenceAssets

fcnca:FederalHomeLoanBankAndFederalReserveBankAmountOfAvailableUnusedFunds
fcnca:LoansPledgedToFederalBanks
fcnca:FederalReserveBankAdvancesGeneralDebtObligationsAmountOfAvailableUnusedFunds

fcnca:FederalReserveBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged
fcnca:LoansPledgedToFederalBanks

fcnca:FinancingReceivableCollateralCoveragePercentage
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:FinancingReceivableCollateralDependent
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:FinancingReceivableCollateralDependentAllowanceForCreditLoss
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:FinancingReceivableCollateralDependentNonaccrualNoAllowance

fcnca:FinancingReceivableCollateralNetRealizableValue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fcnca:LoanDesignation
fcnca:FinancingReceivableRecordedInvestmentNonaccrualStatusRemainingDiscount
fcnca:LoanDesignation
fcnca:FinancingReceivableRevolvingConvertedToTermLoan
fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:Range, us-gaap:MeasurementInputType
fcnca:ImpairedLoansMeasurementInput
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
fcnca:Impairedloansnotcoveredbylossshareagreements
us-gaap:FairValueByMeasurementFrequency

fcnca:InterestReceivableAvailableForSaleDebtSecurities

fcnca:InterestReceivableHeldToMaturityDebtSecurities
us-gaap:StatementEquityComponents
fcnca:InvestmentinBankingSubsidiaries
us-gaap:StatementEquityComponents
fcnca:InvestmentinOtherSubsidiaries
us-gaap:InvestmentType
fcnca:Investmentsecuritiesavailableforsaletransferredtoheldtomaturityamortizedcost
us-gaap:InvestmentType
fcnca:Investmentsecuritiesavailableforsaletransferredtoheldtomaturityfairvalue

fcnca:LeaseLiability

fcnca:LeaseRightofUseAsset

fcnca:Loansandleasesnotacquiredinatransferaccountedforasdebtsecurities

fcnca:MaximumUndividedProfitsElgibleForDividendPaymentWithoutChangingWellCapitalizedStatus

fcnca:NonmarketableSecuritiesandFederalHomeLoanBankStock

fcnca:OperatingandFinanceLeaseLiability

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDue

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueNextTwelveMonths

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearFive

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearFour

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearThree

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearTwo

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueafterYearFive

fcnca:OperatingandFinanceLeaseLiabilityUndiscountedExcessAmount

fcnca:PayableToFdicForLossShareAgreements
us-gaap:FairValueByMeasurementBasis
us-gaap:StatementScenario

fcnca:ReserveForUnfundedCommitments

fcnca:ResidentialMortgageLoansServiced

fcnca:TimeDepositsGreaterthan250000CarryingValue

fcnca:TrustPreferredSecurities

fcnca:UnfundedLoanCommitmentsAvailableToRelatedParties

us-gaap:AccruedFeesAndOtherRevenueReceivable
us-gaap:FairValueByMeasurementBasis

us-gaap:AccumulatedOtherComprehensiveIncomeLossBeforeTax1
us-gaap:StatementEquityComponents
fcnca:LoansPledgedToFederalBanks
us-gaap:AdvancesFromFederalHomeLoanBanks

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestments
us-gaap:GuaranteeObligationsByNature

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:InvestmentType

us-gaap:AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleSecurities
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesAmortizedCost
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency
us-gaap:InvestmentType
us-gaap:StatementEquityComponents
us-gaap:InvestmentType
us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
dei:LegalEntity
us-gaap:Capital

us-gaap:CashAndDueFromBanks
us-gaap:FairValueByMeasurementBasis

us-gaap:CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesCarryingAmountNet
dei:LegalEntity
us-gaap:CommonEquityTierOneCapital
dei:LegalEntity
us-gaap:CommonEquityTierOneCapitalRatio

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition
us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
us-gaap:InvestmentType

us-gaap:DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves

us-gaap:DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts

us-gaap:DeferredTaxLiabilitiesFinancingArrangements

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOtherComprehensiveIncome

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:Range, us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:DefinedBenefitPlanByPlanAssetCategories

us-gaap:DemandDepositAccounts

us-gaap:Deposits
us-gaap:FairValueByMeasurementBasis

us-gaap:DepositsMoneyMarketDeposits

us-gaap:DepositsSavingsDeposits
us-gaap:StatementEquityComponents
us-gaap:DueFromAffiliates

us-gaap:EquitySecuritiesFvNiAndWithoutReadilyDeterminableFairValue

us-gaap:EquitySecuritiesFvNiCost
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
us-gaap:FairValueByMeasurementBasis
us-gaap:FederalHomeLoanBankAdvances

us-gaap:FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds
fcnca:LoansPledgedToFederalBanks

us-gaap:FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1
fcnca:LoansPledgedToFederalBanks

us-gaap:FederalHomeLoanBankAdvancesLongTerm

us-gaap:FederalHomeLoanBankStock
us-gaap:FairValueByMeasurementBasis

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinancingReceivableAllowanceForCreditLosses

us-gaap:FinancingReceivableModificationsRecordedInvestment
fcnca:LoanDesignation
us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fcnca:LoanDesignation
us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fcnca:LoanDesignation
us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear
fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fcnca:LoanDesignation
us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fcnca:LoanDesignation
us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fcnca:LoanDesignation
us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
fcnca:LoanDesignation
fcnca:LoanDesignation, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fcnca:LoanDesignation, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableRecordedInvestmentCurrent

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus

us-gaap:FinancingReceivableRecordedInvestmentPastDue
fcnca:LoanDesignation
us-gaap:FinancingReceivableRevolving
fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fcnca:LoanDesignation
us-gaap:FinancingReceivableRevolvingConvertedToTermLoan
fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableUnamortizedPurchasePremiumDiscount

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsCurrentCarryingValue
us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsMaximumExposure

us-gaap:HeldToMaturitySecurities
us-gaap:FairValueByMeasurementBasis
us-gaap:InvestmentType

us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
us-gaap:InvestmentType

us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
us-gaap:InvestmentType

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue

us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount

us-gaap:HeldToMaturitySecuritiesFairValue
us-gaap:InvestmentType

us-gaap:InterestBearingDepositLiabilities

us-gaap:InterestBearingDomesticDepositChecking
us-gaap:FairValueByMeasurementBasis
us-gaap:InterestPayableCurrentAndNoncurrent

us-gaap:InterestReceivable

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:ShortTermDebtType
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LoansAndLeasesReceivableAllowance

us-gaap:LoansAndLeasesReceivableGrossCarryingAmount

us-gaap:LoansAndLeasesReceivableGrossCarryingAmountCovered

us-gaap:LoansAndLeasesReceivableNetReportedAmount

us-gaap:LoansAndLeasesReceivableRelatedParties
us-gaap:Range, us-gaap:MeasurementInputType
us-gaap:LoansHeldForSaleMeasurementInput
fcnca:LoansPledgedToFederalBanks
us-gaap:LoansPledgedAsCollateral

us-gaap:LoansReceivableHeldForSaleAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:LoansReceivableHeldForSaleNetNotPartOfDisposalGroup
us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:InvestmentType
us-gaap:MortgageBackedSecuritiesHeldToMaturityFairValueDisclosure

us-gaap:MortgageLoansInProcessOfForeclosureAmount

us-gaap:NoninterestBearingDepositLiabilities

us-gaap:NotesReceivableGross
fcnca:LoanDesignation
fcnca:LoanDesignation, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fcnca:LoanDesignation, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherBorrowings
us-gaap:FairValueByMeasurementBasis

us-gaap:OtherIntangibleAssetsNet

us-gaap:OtherLiabilities
us-gaap:StatementEquityComponents

us-gaap:OtherRealEstate
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:Range, us-gaap:MeasurementInputType
us-gaap:OtherRealEstateOwnedMeasurementInput

us-gaap:OtherShortTermInvestments
us-gaap:FairValueByMeasurementBasis
us-gaap:StatementEquityComponents

us-gaap:PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged

us-gaap:PreferredStockValue
us-gaap:GuaranteeObligationsByNature
us-gaap:QualifiedAffordableHousingProjectInvestmentsCommitment

us-gaap:SecuritiesSoldUnderAgreementsToRepurchase
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods, us-gaap:InvestmentType
us-gaap:FairValueByMeasurementBasis

us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseFairValueOfCollateral
us-gaap:InvestmentType

us-gaap:SecurityOwnedNotReadilyMarketableFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:ServicingAsset
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:ServicingAssetAtAmortizedValue

us-gaap:ShortTermBorrowings
us-gaap:ShortTermDebtType
us-gaap:StatementEquityComponents

us-gaap:SubordinatedDebt
us-gaap:FairValueByMeasurementBasis
dei:LegalEntity
us-gaap:TierOneLeverageCapital

us-gaap:TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
dei:LegalEntity
us-gaap:TierOneLeverageCapitalToAverageAssets
us-gaap:DebtInstrument
us-gaap:TierTwoRiskBasedCapital

us-gaap:TimeDepositMaturitiesAfterYearFive

us-gaap:TimeDepositMaturitiesYearFive

us-gaap:TimeDepositMaturitiesYearFour

us-gaap:TimeDepositMaturitiesYearThree

us-gaap:TimeDepositMaturitiesYearTwo

us-gaap:TimeDeposits
us-gaap:FairValueByMeasurementBasis

us-gaap:UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums
fcnca:LoanDesignation
fcnca:LoanDesignation, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:DebtInstrument
us-gaap:GuaranteeObligationsByNature
us-gaap:UnusedCommitmentsToExtendCredit

us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance

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
Operating Lease Liability
Noncurrent Liabilities
Long Term Debt
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
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Payments For Repurchase Of Common Stock
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net
BanksAndOrInsurance
Interest And Dividend Income Operating
AssetsBanks
Financing Receivable Allowance For Credit Losses
LiabilitiesBanks
Short Term Borrowings

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassA▂▂▂▂▂▃▄▅▆▆▇████████████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁8.8118.8118.8118.8118.9299.2759.6249.87910.17510.3810.62310.8811.00511.00511.00511.00511.00511.00511.00511.00511.00511.00511.00511.00511.00511.00511.0058.5868.5868.5868.5868.5868.5868.5868.5888.6298.6448.6448.6448.6698.7578.7578.7578.7578.7578.757
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▇▇█████████1.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0331.0331.0331.0331.0331.0331.0331.0331.6271.6271.6311.641.641.641.6781.6781.6781.6781.678
 us-gaap:PreferredStockParOrStatedValuePerShare dei:LegalEntity,us-gaap:StatementClassOfStock fcnca:CITGroupInc,fcnca:FixedToFloatingRateNonCumulativePerpetualPreferredStockSeriesANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PreferredStockParOrStatedValuePerShare dei:LegalEntity,us-gaap:StatementClassOfStock fcnca:CITGroupInc,fcnca:NonCumulativePerpetualPreferredStockSeriesBNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PreferredStockParOrStatedValuePerShare dei:LegalEntity,us-gaap:StatementClassOfStock,us-gaap:SubsequentEventType fcnca:CITGroupInc,fcnca:FixedToFloatingRateNonCumulativePerpetualPreferredStockSeriesA,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PreferredStockParOrStatedValuePerShare dei:LegalEntity,us-gaap:StatementClassOfStock,us-gaap:SubsequentEventType fcnca:CITGroupInc,fcnca:NonCumulativePerpetualPreferredStockSeriesB,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▄▄9.8164059.816405NA9.83662910.1055210.473119NA11.06046211.2865211.519008NA11.9714612.01040512.010405NA12.01040512.01040512.010405NA12.01040512.01040512.010405NA12.01040512.01040512.010405NA9.6189419.6189419.618941NA9.6189419.6189419.618985NA10.26415910.27134310.283842NA10.36396410.42285710.434453NA10.434453NANA
us-gaap:EarningsPerShareBasic ██▇▇█▃▅▆▆▅▄▅▄▄▂▃▆▃▂▂▃▂▂▂▂▃▃▁▁▁▁▂▂▃▁▂▂15.0914.5313.5414.0314.745.469.54999999999999711.2710.569.677.6200000000000019.87.778.354.5300000000000015.5811.215.634.3799999999999994.285.774.343.55999999999999874.663.715.315.732.742.762.332.834.264.565.782.14999999999999863.853.66NANANANANANANANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity fcnca:BancSharesNANA1.381e-05NANANA1.086e-07NANANA1.2670000000000002e-07NANANA1.288e-07NANANA1.2420000000000001e-07NANANA1.265e-07NANANA1.361e-07NANANA1.4890000000000002e-07NANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity fcnca:FCBNANA1.372e-05NANANA1.154e-07NANANA1.217e-07NANANA1.2540000000000002e-07NANANA1.225e-07NANANA1.2640000000000002e-07NANANA1.312e-07NANANA1.4099999999999998e-07NANANANANANANANANANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity fcnca:BancSharesNANA1.061e-05NANANA1.212e-07NANANA1.399e-07NANANA1.421e-07NANANA1.385e-07NANANA1.403e-07NANANA1.469e-07NANANA1.6389999999999998e-07NANANANANANANANANANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity fcnca:FCBNANA1.292e-05NANANA1.246e-07NANANA1.312e-07NANANA1.346e-07NANANA1.321e-07NANANA1.361e-07NANANA1.437e-07NANANA1.554e-07NANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTax █▆█▇██▇▇▇▇▆▆▅▄▄▅▇▆▁▅▅▆▃▅▄▅▃▄▄▄▆▄▄▅▃▄▄▄▃▅▄▅164.339101.382164.103138.592169.734158.28146.923133.738145.488139.686101.86114.38178.97642.25424.43777.583142.75891.872-67.71851.64778.11392.68813.18472.24128.77481.38612.1620.44847.20131.0497.50345.61323.63557.786-8.37449.94541.59235.653-3.578.34531.75658.382NANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▇▇▇▇▇▃▅▆▆▅▄▅▅▅▅▄█▄▃▃▄▃▂▃▂▄▃▁▁▁▁▂▂▃▁▂▂▂▂▅▁▄▁▁198.568191.349174.705178.527190.56574.085131.528160.164155.628144.728115.926133.516122.715131.453123.111103.649211.879105.05981.05578.95109.57481.48866.92288.84269.69101.49190.98540.26539.35932.98542.17966.64169.19886.64632.55959.49848.26453.84945.975132.47132.56599.1243.3943.185NANA
us-gaap:IncomeTaxExpenseBenefit ██▆▆▆▁▄▅▆▅45.7844.03336.62135.84336.77916.91629.65435.38536.26933.369NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxesPaidNet █▁867.1850.011NANA39.045-0.592NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestAndFeeIncomeLoansAndLeases ▇▇██▇▇▇▇▆▆▆▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▃▁▁▁▂▂▂▃▅▄▄▄▅▄▄▄▅▅▃▂324.288323.023344.691336.382326.099325.548308.139315.012303.233290.922287.768272.215261.086251.982247.015246.26235.732226.63225.312219.314215.442216.404216.717224.631222.682210.862211.124164.259164.108161.034178.082182.201185.151211.763270.788226.812231.864238.137262.06240.493233.731231.453260.111264.819202.541187.074
us-gaap:InterestExpense ▂▂▃▃▄▅▄▄▃▂▂▁▁▁▂▂▂▁▁▁▂▁▂▁▂▂▂▂▂▂▂▂▂▂▃▃▄▄▄▅▆▆▇▇██15.43215.67118.1620.67525.86331.15926.92425.89323.37316.45212.6918.3447.6588.16411.18911.15810.93310.51410.86510.64511.1810.39211.14210.45411.36311.34514.87611.39911.61312.46313.04713.45114.39815.72217.94321.31825.08725.829.75834.99238.22941.21344.248.68852.57349.664
us-gaap:InterestIncomeExpenseNet █▇██▇▇▇▇▇▇▇▆▆▅▅▅▅▄▄▄▄▄▄▄▄▃▃▂▁▁▂▂▂▃▅▃▃▃▄▃▃▃▄▄▁▁346.393339.652358.716353.659337.394338.4327.124336.425327.348320.472320.882307.362296.219284.437274.769273.175261.609250.343243.917235.849232.189232.72230.719239.371234.65220.165217.246166.222165.698160.931176.593179.183179.528204.882262.948215.356215.432220.952242.418217.187207.375203.987228.405229.94164.862151.036
us-gaap:NetIncomeLoss ██▇▇█▃▅▆▆▆▅▆▅▅▃▃▇▃▃▃▄▃▂▃▂▃▃▁▁▁▁▂▂▃▁▂▂▂▁▄▁▃▁▁▁▆152.788147.316138.084142.684153.78657.169101.874124.779119.359111.35989.473117.31893.291100.23154.40767.064134.6667.62152.6951.40469.31652.07242.74855.95844.52263.81663.28326.36326.5522.36627.22640.98243.90655.58521.74639.52437.58335.49530.03381.93521.362.67930.08527.74628.602106.611
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ██▇▇█▁▄▆▆▅148.152142.68133.448138.048148.99657.169101.874124.779119.359111.359NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▃▆▅▅█▆▅▆▆▅▅▄▃▄▅▅▆▁▅▅▆▄▅▄▅▃▅▅▅▇▅▄▅▄▅▅▅11.551-45.93426.019-4.09215.948101.11145.0498.95926.12928.32712.387-2.937-14.315-57.977-29.9710.5198.09824.251-120.4080.2438.79740.616-29.56416.283-15.74817.57-51.123-5.91520.6518.67470.2774.631-20.2712.201-30.1210.4214.0090.158NANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService fcnca:ATMIncome▂▂▁▂▁▁▂▂▂▂▃▄▆▆▆██1.5711.4821.4041.5371.3951.4221.5251.6351.6251.5111.6731.9192.2172.1712.2612.5962.513NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService fcnca:InsuranceCommissions▆██▆▄▆▆▃▂▄▄▂▃▇▅▃▁3.7043.9984.0913.5763.1893.6883.7052.962.8543.2913.2312.7552.943.7763.452.8942.563NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService fcnca:MerchantServices▄▄█▂▁▁▂▂▂▁▂▁▂▂8.5328.91712.8976.7635.3635.8885.986.0346.4555.8355.9925.8576.4786.177NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:AssetManagement1▁▁█▇▂▇▄▅▄▅▄▄▆▃21.88321.53627.62426.36922.37126.41224.45525.21224.57325.00124.42324.45925.51523.569NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:CreditAndDebitCard█▆▅▆▄▄▄▂▄▃▇▁▁▁▁▂▁22.47119.9618.78819.75617.58718.1618.00915.95718.47916.63321.09314.67814.92514.78214.73515.48714.518NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:DepositAccount██▄▃▁▅▆▆▅▅▆▅▅▅▆▅▅31.75332.19822.88620.84117.52226.41327.22427.11225.7925.06526.99725.99425.95226.54327.24625.95125.862NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:FinancialServiceOther▁▆█▂▂▂▂▂▂▂▂▂▂▂▂▂▁5.92912.99116.7637.8927.1457.7927.8218.2378.1647.4227.7197.6517.7567.487.0197.0736.628NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ██▇▇▇▅▅▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁55175.31853908.60649957.6848666.87347866.19441594.45339824.49637748.32437655.09435961.6735408.62934954.65935088.56634436.43734527.51234584.15434769.8534018.40532990.83632971.9132230.40332195.65731475.93431449.82430896.85530853.64930075.11321942.49122062.8422154.99721199.09121511.35221308.82221351.01221283.65221173.6221240.9921143.62820881.49321015.34421021.6521167.49520806.65921049.29121105.76921215.691
us-gaap:Liabilities ██▇▇▆▅▅▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁50698.82849587.20645728.41244592.45943874.7537636.93336238.31234179.84234080.48132438.36131919.67531455.64631641.6831064.32331193.44831270.32331529.99930917.70929978.40929888.16229194.69929234.46328603.82528587.29628102.96528088.27227387.51919775.78419913.69520050.16719122.41619529.29519369.49219432.43119419.64519199.49619311.219251.50519020.36519143.41419211.46119378.36219073.69719331.08719410.40519548.101
us-gaap:LiabilitiesAndStockholdersEquity ██▇▇▇▅▅▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁55175.31853908.60649957.6848666.87347866.19441594.45339824.49637748.32437655.09435961.6735408.62934954.65935088.56634436.43734527.51234584.15434769.8534018.40532990.83632971.9132230.40332195.65731475.93431449.82430896.85530853.64930075.11321942.49122062.8422154.99721199.09121511.35221308.82221351.01221283.65221173.6221240.9921143.62820881.49321015.34421021.6521167.49520806.65921049.29121105.76921215.691
us-gaap:StockholdersEquity ██▇▇▇▇▆▆▆▆▆▆▅▅▅▅▅▅▄▅▄▄▄▄▄▄▄▂▂▂▂▂▂▂▁▂▂▂▁▂▁▁▁▁▁▁4476.494321.44229.2684074.4143991.4443957.523586.1843568.4823574.6133523.3093488.9543499.0133446.8863372.1143334.0643313.8313239.8513100.6963012.4273083.7483035.7042961.1942872.1092862.5282793.892765.3772687.5942166.7072149.1452104.832076.6751982.0571939.331918.5811864.0071974.1241929.791892.1231861.1281871.931810.1891789.1331732.9621718.2041695.3641667.59
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity fcnca:BancSharesNANA4577.212NANANA3344.305NANANA3463.307NANANA3287.364NANANA2995.557NANANA2831.242NANANA2690.324NANANA2103.926NANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity fcnca:FCBNANA4543.496NANANA3554.974NANANA3315.742NANANA3189.709NANANA2942.829NANANA2821.475NANANA2019.595NANANA1978.136NANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:Cash us-gaap:StatementEquityComponents us-gaap:ParentNANA49.716NANANA4.573NANANA7.188NANANA45.411NANANA8.278NANANA26.285NANANA24.026NANANA13.047NANANA2.131NANANA10.765NANANA14.01NANANA
 us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:StatementEquityComponents us-gaap:ParentNANA49.716NANANA4.573NANANA7.188NANANA45.411NANANA8.278NANANA26.285NANANA24.026NANANA13.047NANANA2.131NANANA10.765NANANA14.01NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▆▆▅▄▆█▅▂▂▁▃395.364410.495362.048352.419389.233454.22376.719288.933284.147268.599327.44NANANA336.15NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:PropertyPlantAndEquipmentGross NANA2261.459NANANA2159.367NANANA2096.239NANANA1938.756NANANA1859.822NANANA1810.954NANANA1785.582NANANA1474.118NANANA1432.662NANANA1350.929NANANA1327.819NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType fcnca:PremisesandleaseholdimprovementsNANA1286.092NANANA1228.588NANANA1228.582NANANA1158.699NANANA1130.65NANANA1089.644NANANA1045.718NANANA875.511NANANA840.149NANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA639.109NANANA595.686NANANA560.923NANANA489.067NANANA443.56NANANA441.378NANANA444.774NANANA394.348NANANA390.345NANANA353.664NANANA371.138NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LandNANA336.258NANANA335.093NANANA306.734NANANA290.99NANANA285.612NANANA279.932NANANA295.09NANANA204.259NANANA202.168NANANA193.663NANANA189.811NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA1010.176NANANA914.971NANANA892.06NANANA800.325NANANA726.778NANANA675.125NANANA660.501NANANA597.596NANANA549.894NANANA496.453NANANA485.074NANANA
us-gaap:AmortizationOfIntangibleAssets ▄▄█▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▃▄▄▄▆▃▂▃▃▁▁▁5.4255.79514.2126.1256.3046.165.9275.9156.0765.9436.0686.0185.5136.0495.8485.9495.7745.2715.1755.4985.5495.58611.1293.4633.0965.2065.2180.530.570.637NANANANANANANANA1.0491.1371.0311.1691.4761.5631.5861.578
us-gaap:PropertyPlantAndEquipmentNet ███████▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▂▂▂▂▁▂▂▂▂▂▁▁▁▁▁▁▁▁▁1237.861238.8741251.2831255.251255.6881251.7021244.3961222.6591213.2961203.6741204.1791167.3291167.5321140.821138.4311131.5581129.9931123.8381133.0441134.5621120.971127.3711135.8291123.8281121.4211116.2931125.081891.722883.303878.85876.522868.001872.477872.045882.768885.757873.483864.466854.476847.372842.911839.463842.745845.478846.702839.96
us-gaap:Goodwill ███████▆▆▅▅▄▄▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁350.298350.298350.298350.298350.298350.084349.398296.764296.764236.347236.347208.217208.217150.601150.601150.601150.601150.601150.601150.601139.773139.773139.773139.773139.773139.773139.773127.14127.14127.14102.625102.625102.625102.625102.625102.625102.625102.625102.625102.625102.625102.625102.625102.625102.625102.625
us-gaap:IntangibleAssetsNetExcludingGoodwill ▄▄▄▅▅▅▆▅▆▆▆▆▆▆▆▆▇▆▆▆▇▇▇███▇▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂47.43951.54750.77554.1758.60663.88468.27665.14769.57567.05372.29872.74877.3768.66873.09677.49180.54475.32578.0479.5580.55584.74390.98695.53598.998101.90489.9223.2913.8214.391.2471.6962.2662.8843.5564.3225.1756.0767.0328.0818.2349.2659.89711.37312.93614.522
us-gaap:FiniteLivedIntangibleAssetsNet NANA29.667NANANA43.386NANANA48.232NANANA51.151NANANA57.625NANANA71.635NANANA89.922NANANA1.247NANANA3.556NANANA7.032NANANA9.897NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▁▁▂▃▅▅▆▇█▃65.0965.3368.04869.96873.48875.17477.11579.85781.53470.815NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EquitySecuritiesFvNi ▂▂▁▁▂█▁▂▂▂▁▂▂118.54106.88691.6893.074114.316315.50182.333116.854111.489109.88492.599109.907107.264NA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:TimeDepositMaturitiesYearOne NANA1844.86NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebt NANA1248.163NANANA588.638NANANA319.867NANANA870.24NANANA832.942NANANA704.155NANANA351.32NANANA510.769NANA444.252444.921472.17644.682649.818687.599744.839792.661801.081809.949819.145918.93922.207
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType fcnca:FixedToFloatingSubordinatedNotesAt3Point375PercentMaturing2030,us-gaap:SubordinatedDebtNANA350.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType fcnca:JuniorSubordinantedDebentureAt3MonthLiborPlus1Point75PercentMaturingJune302036,us-gaap:JuniorSubordinatedDebtNANA88.145NANANA88.145NANANA88.145NANANA90.207NANANA90.207NANANA96.392NANANA96.392NANANA96.392NANANA96.392NANANA97.057NANANA118.557NANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType fcnca:JuniorSubordinatedDebentureAt3MonthLiborPlus2Point25PercentMaturingJune152034,us-gaap:JuniorSubordinatedDebtNANA19.588NANANA19.588NANANA19.588NANANA19.588NANANA24.742NANANA25.774NANANA26.547NANANA0.0NANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType fcnca:JuniorSubordinatedDebentureAt3MonthLiborPlus2Point80PercentMaturingMarch302034,us-gaap:JuniorSubordinatedDebtNANA14.433NANANA14.433NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType fcnca:JuniorSubordinatedDebentureAt3MonthLiborPlus2Point85PercentMaturingApril72034,us-gaap:JuniorSubordinatedDebtNANA10.31NANANA10.31NANANA10.31NANANA10.31NANANA10.31NANANA10.31NANANA10.0NANANA0.0NANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType fcnca:RatesRangingFromPoint75PercentTo3Point17PercentAndMaturingThroughFebruary2032,us-gaap:FederalHomeLoanBankAdvancesNANA655.175NANANA317.191NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType fcnca:UnsecuredTermLoanAt1MonthLiborPlus1Point10PercentMaturingSeptember52022,fcnca:UnsecuredTermLoanNANA82.125NANANA96.425NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType fcnca:OtherLongTermDebtNANA0.037NANANA3.385NANANA0.761NANANA0.083NANANA30.095NANANA30.108NANANA30.119NANANA30.13NANANA30.141NANANA30.149NANANA30.158NANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType fcnca:UnamortizedPurchaseAccountingAdjustmentsNANA-1.999NANANA-1.569NANANA-1.426NANANA-2.964NANANA-3.35NANANA-2.907NANANA-0.156NANANA2.449NANANA3.069NANANA4.42NANANA6.288NANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:CapitalLeaseObligationsNANA6.308NANANA8.23NANANA13.16NANANA7.795NANANA5.701NANANA9.226NANANA3.15NANANA6.515NANANA10.02NANANA5.688NANANA9.903NANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:JuniorSubordinatedDebtNANA132.5NANANA132.5NANANA122.167NANANA120.105NANANA125.259NANANA132.476NANANA132.939NANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:StatementEquityComponents us-gaap:ParentNANA128.125NANANA201.702NANANA105.546NANANA107.479NANANA126.861NANANA133.775NANANA136.717NANANA96.392NANANA96.392NANANA251.697NANANA273.197NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA11.757NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA9.98NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA8.146NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA5.223NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA32.045NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ██▇▇▇▇▆▆▆▆▆▆▅▅▅▅▅▅▄▅▄▄▄▄▄▄▄▂▂▂▂▂▂▂▁▂▂▂▁▂▁▁▁▁▁▁4476.494321.44229.2684074.4143991.4443957.523586.1843568.4823574.6133523.3093488.9543499.0133446.8863372.1143334.0643313.8313239.8513100.6963012.4273083.7483035.7042961.1942872.1092862.5282793.892765.3772687.5942166.7072149.1452104.832076.6751982.0571939.331918.5811864.0071974.1241929.791892.1231861.1281871.931810.1891789.1331732.9621718.2041695.3641667.59
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity▁▅█3.1873.7914.157NA0.00.00.0-57.286-61.979-66.558-71.149-75.869-80.876NA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss▅▅▇███▄▄▄▃▂▁▁34.9128.15978.754104.135113.102102.085.7924.7062.554-16.89-38.505-68.131-57.496NA-30.945NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassA▂▂▂▂▂▃▄▅▆▆▇████████████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁8.8118.8118.8118.8118.9299.2759.6249.87910.17510.3810.62310.8811.00511.00511.00511.00511.00511.00511.00511.00511.00511.00511.00511.00511.00511.00511.0058.5868.5868.5868.5868.5868.5868.5868.5888.6298.6448.6448.6448.6698.7578.7578.7578.7578.7578.757
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▇▇█████████1.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0331.0331.0331.0331.0331.0331.0331.0331.6271.6271.6311.641.641.641.6781.6781.6781.6781.678
us-gaap:RetainedEarningsAccumulatedDeficit ██▇▇▇▇▇▆▆▆▆▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁4148.8574005.3183867.2523738.4173651.2373632.8943658.1973560.583440.2843325.3353218.5513133.7463020.5962931.5092785.432735.2272671.7662540.7092476.6912427.6042379.8032314.092265.6212226.4762174.1212129.862069.6472015.181991.7031968.0391948.5581924.2171886.1211845.1011792.7261872.0881838.161804.4981773.6521750.3821685.4771674.8391615.291588.3361563.721538.248
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▇▇█▇▇▇▄▃▃▂▁▁▁▁▄▅▅▅▄▇▇▇▆▇▆▇▆██▇▇▅▅▆▅▆▆▆▆▇▇▇▇▇▇▇-22.12-33.67112.263-13.756-9.664-25.612-126.723-171.772-180.731-206.86-235.187-247.575-244.638-230.323-122.294-92.324-102.843-110.941-135.192-14.784-15.027-23.824-64.44-34.876-51.159-35.411-52.981-1.8584.057-16.594-25.268-95.545-100.176-79.905-82.106-51.986-62.407-66.416-66.574-32.527-29.451-39.907-36.529-24.333-22.557-24.859
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity▁▅█3.1873.7914.157NANANA0.0-57.286-61.979-66.558-71.149-75.869-80.8760.00.00.00.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedDefinedBenefitPlansAdjustment▅▅▄▂▂▁▁▂▂▂▁▃▂▂▃▄▄▄▃▆▆▆▆▆▆▅▅████▃▃▃▃▄▄▄▄▆▆▆▆▆-60.217-65.621-70.648-117.891-122.766-127.692-132.515-119.192-121.306-123.412-125.533-103.575-106.266-109.08-91.349-84.729-86.195-87.758-89.317-45.114-46.24-47.403-48.423-50.05-51.888-53.652-55.415-8.287-8.79-9.766-10.743-88.863-91.1-93.712-96.331-71.114-72.811-74.508-76.206-41.829-42.832-43.835-44.837-41.301NANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss▆▅▇███▅▅▅▄▃▃▃▁▄▄▄▄▃▆▆▅▄▅▅▅▅▅▅▅▄▅▄▅▅▅▅▅▅▅▅▅▅▅34.9128.15978.754104.135113.102102.085.7924.7062.554-16.89-38.505-68.131-57.496-121.243-30.945-7.595-16.648-23.183-45.87530.3331.21324.034-15.12516.6282.60420.5515.0989.4916.49-2.835-10.091-1.824-4.11719.60620.51725.88817.07314.3416.11517.4919.3118.63314.05225.599NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁▇█▇▇▇██▇██-702.931104.876123.757115.46883.18117.609141.409179.39579.732140.033127.263NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA124.763337.43NANA78.306131.504
us-gaap:NetCashProvidedByUsedInInvestingActivities █▄▇▇▁▆███▇█-384.34-3968.346-1230.773-811.611-6388.079-1441.295-460.068-119.747-400.682-577.972-11.671NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA185.2011473.69NANA-169.151-207.104
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▅▂▂█▃▂▁▁▁▁1072.143911.9171116.645659.3296239.9111501.187406.445-54.862336.498379.098-50.677NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA-178.499-1865.046NANA-28.478340.538
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▃▆▄▂▁██▄▅▁-15.13148.4479.629-36.814-64.98777.50187.7864.78615.548-58.841NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▄▄▁▄▆▃▅▆▅▄▂▅▄▄█▅▆▄▇▄▄▃▄▅▃▃▃▃▄▄█▃▄▄▁▅▄▄▅▃▃▄▆▁▃▃4.8868.555-41.762-1.54729.259-11.48510.65938.81312.442-7.316-27.01916.4772.738-5.57358.56821.64238.9356.69346.474-4.8270.305-8.8064.49119.821-13.559-10.203-10.309-20.2861.768-4.51265.889-20.36-5.3737.733-41.26412.844-1.153-5.69219.606-19.11-18.2881.15540.853-48.123-17.657-16.448
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁▇█▇▇▇██▇██-702.931104.876123.757115.46883.18117.609141.409179.39579.732140.033127.263NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA124.763337.43NANA78.306131.504
us-gaap:NetIncomeLoss ██▇▇█▃▅▆▆▆▅▆▅▅▃▃▇▃▃▃▄▃▂▃▂▃▃▁▁▁▁▂▂▃▁▂▂▂▁▄▁▃▁▁▁▆152.788147.316138.084142.684153.78657.169101.874124.779119.359111.35989.473117.31893.291100.23154.40767.064134.6667.62152.6951.40469.31652.07242.74855.95844.52263.81663.28326.36326.5522.36627.22640.98243.90655.58521.74639.52437.58335.49530.03381.93521.362.67930.08527.74628.602106.611
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities █▄▇▇▁▆███▇█-384.34-3968.346-1230.773-811.611-6388.079-1441.295-460.068-119.747-400.682-577.972-11.671NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA185.2011473.69NANA-169.151-207.104
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▅▅▅▄▅▅▅▄▅▅▅▅▅▄▅▄▄▅▅▅▅▅▅▄█▁▅▅27.73823.54434.89435.76935.79126.9331.85834.34630.99823.87552.17428.66735.52224.08124.70824.17820.45315.45920.85931.36516.02213.59534.15923.65418.74413.17716.94526.21322.22417.32627.1512.19117.9838.71315.26724.36322.64326.6123.39120.93619.74212.832146.574-115.65421.73918.177
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▅▂▂█▃▂▁▁▁▁1072.143911.9171116.645659.3296239.9111501.187406.445-54.862336.498379.098-50.677NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA-178.499-1865.046NANA-28.478340.538
us-gaap:ProceedsFromIssuanceOfLongTermDebt NANA0.00.00.0400.0100.0100.00.00.00.0125.0NANA0.00.0175.00.00.00.075.075.00.0230.00.0120.00.00.00.00.00.0NANANA0.31NANANA0.0NANANA-183.122NANANA
us-gaap:PaymentsOfDividendsCommonStock █▆▅▅▆▃▃▃▃▃▃▃▃▃▃▁▅▁▃▃▅▁▅▃▃▃▂▂▂▂▁▂▂▂▄▃▃▃▃▃▃▃▃▃▃▃13.8639.2498.5638.6428.9324.2564.3984.4964.5754.6684.1674.2044.2044.2043.6030.07.2060.03.6033.6037.2060.07.2063.6033.6033.6032.8862.8862.8862.8850.02.8862.8862.8916.1533.0763.0843.0853.1353.1093.1253.133.1313.133.133.13
us-gaap:PaymentsForRepurchaseOfCommonStock NANA0.050.832126.829156.094131.86134.26888.91898.077105.00958.0860.00.00.0NANANANANANANANANANANA0.00.00.00.00.00.00.00.32198.6752.5350.8411.5733.72213.097.5750.00.00.0NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType fcnca:FixedToFloatingSubordinatedNotesAt3Point375PercentMaturing2030,us-gaap:SubordinatedDebtNANA3.375e-06NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:VariableRate fcnca:JuniorSubordinatedDebentureAt6point50PercentMaturingOctober12025,us-gaap:JuniorSubordinatedDebt,fcnca:Libor3MonthRateNANA6.5e-06NANANANANANANA6.5e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:VariableRate fcnca:JuniorSubordinatedDebentureAt7PercentMaturingDecember312026,us-gaap:JuniorSubordinatedDebt,fcnca:Libor3MonthRateNANA7e-06NANANANANANANA7e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:VariableRate fcnca:JuniorSubordinatedDebentureAt7Point13PercentMaturingFebruary252020,us-gaap:JuniorSubordinatedDebt,fcnca:Libor3MonthRateNANA7.1299999999999995e-06NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue us-gaap:StatementClassOfStock

us-gaap:CommonStockValue

us-gaap:CommonClassA


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
Value8.8118.8118.8118.8118.9299.2759.6249.879101010101111111111111111111111111111118.5868.5868.5868.5868.5868.5868.5868.5888.6298.6448.6448.6448.6698.7578.7578.7578.7578.7578.7578.757
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 Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


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
Value1.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0331.0331.0331.0331.0331.0331.0331.0331.6271.6271.6311.641.641.641.6781.6781.6781.6781.6781.678
Percentage of CommonStockValue11.411.411.411.411.310.810.410.29.99.79.59.29.19.19.19.19.19.19.19.19.19.19.19.19.19.19.112.012.012.012.012.012.012.012.018.918.818.919.018.918.719.219.219.219.219.219.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Preferred Stock Par Or Stated Value Per Share

us-gaap:PreferredStockParOrStatedValuePerShare dei:LegalEntity, us-gaap:StatementClassOfStock

us-gaap:PreferredStockParOrStatedValuePerShare

fcnca:CITGroupInc, fcnca:FixedToFloatingRateNonCumulativePerpetualPreferredStockSeriesA


Preferred
Period End2020-10-15
Value0.01
Percentage of PreferredStockParOrStatedValuePerShare100.0

fcnca:CITGroupInc, fcnca:NonCumulativePerpetualPreferredStockSeriesB


Preferred
Period End2020-10-15
Value0.01
Percentage of PreferredStockParOrStatedValuePerShare100.0

us-gaap:PreferredStockParOrStatedValuePerShare dei:LegalEntity, us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

fcnca:CITGroupInc, fcnca:FixedToFloatingRateNonCumulativePerpetualPreferredStockSeriesA, us-gaap:SubsequentEvent


Preferred
Period End2020-10-15
Value0.01
Percentage of PreferredStockParOrStatedValuePerShare100.0

fcnca:CITGroupInc, fcnca:NonCumulativePerpetualPreferredStockSeriesB, us-gaap:SubsequentEvent


Preferred
Period End2020-10-15
Value0.01
Percentage of PreferredStockParOrStatedValuePerShare100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-30
Value9.8164059.8164059.83662910101111111112121212121212121212129.6189419.6189419.6189419.6189419.6189419.61898510101010101010
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value15.0914.5313.5414.0314.745.469.5511.2710.569.677.629.87.778.354.535.5811.215.634.384.285.774.343.564.663.715.315.732.742.762.332.834.264.565.782.153.853.66
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Tier One Risk Based Capital To Risk Weighted Assets

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets

fcnca:BancShares


Tier
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value13.810.10860.12670.12880.12420.12650.13610.1489
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:FCB


Tier
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value13.720.11540.12170.12540.12250.12640.13120.141
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets99.3106.396.197.498.699.996.494.7

Capital To Risk Weighted Assets

us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity

us-gaap:CapitalToRiskWeightedAssets

fcnca:BancShares


Capital
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value10.610.12120.13990.14210.13850.14030.14690.1639
Percentage of CapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:FCB


Capital
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value12.920.12460.13120.13460.13210.13610.14370.1554
Percentage of CapitalToRiskWeightedAssets121.8102.893.894.795.497.097.894.8

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
Value1641011641381691581461331451391011147842247714291-67.718517892137228811220473197452357-8.374494135-3.5783158
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 InterestAndDividendIncomeOperating45.428.543.537.046.742.841.536.941.541.530.536.226.014.48.527.352.435.2-26.621.032.138.15.528.911.735.25.211.526.617.951.423.712.226.2-3.021.117.314.4-1.331.112.923.8

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value198191174178190741311601551441151331221311231032111058178109816688691019040393242666986325948534513232994343
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating54.953.946.447.752.520.037.144.244.443.034.842.340.444.943.136.577.740.331.832.045.033.527.735.628.343.839.222.722.219.022.234.635.739.311.625.120.121.816.952.513.340.415.915.5

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value45443635361629353633
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating12.712.49.79.610.14.68.49.810.39.9

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value8670.01139-0.592
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating239.70.010.7-0.2

Interest And Fee Income Loans And Leases

us-gaap:InterestAndFeeIncomeLoansAndLeases

us-gaap:InterestAndFeeIncomeLoansAndLeases


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
Value324323344336326325308315303290287272261251247246235226225219215216216224222210211164164161178182185211270226231238262240233231260264202187
Percentage of InterestAndFeeIncomeLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating89.690.991.589.989.888.187.086.986.586.386.386.285.986.186.486.686.586.988.489.088.589.089.689.990.591.191.092.592.692.993.994.695.596.096.495.896.496.596.395.495.294.495.495.093.293.2

us-gaap:InterestAndFeeIncomeLoansAndLeases us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:SBAPPP, us-gaap:CommercialPortfolioSegment


Interest
Period End2020-09-302020-06-30
Value2819
Percentage of InterestAndFeeIncomeLoansAndLeases8.65.8
Percentage of InterestAndDividendIncomeOperating7.75.2
Percentage of InterestAndDividendIncomeOperating fcnca:SBAPPP us-gaap:CommercialPortfolioSegment0.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value15151820253126252316128.3447.6588.1641111101010101110111011111411111213131415172125252934384144485249
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 InterestAndDividendIncomeOperating4.34.44.85.57.18.47.67.16.74.93.82.62.52.83.93.94.04.04.34.34.64.34.64.24.64.96.46.46.57.26.97.07.47.16.49.010.410.510.913.915.616.816.217.524.224.7

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
Value346339358353337338327336327320320307296284274273261250243235232232230239234220217166165160176179179204262215215220242217207203228229164151
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 InterestAndDividendIncomeOperating95.795.695.294.592.991.692.492.993.395.196.297.497.597.296.196.196.096.095.795.795.495.795.495.895.495.193.693.693.592.893.193.092.692.993.691.089.689.589.186.184.483.283.882.575.875.3

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
Value152147138142153571011241191118911793100546713467525169524255446363262622274043552139373530812162302728106
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 InterestAndDividendIncomeOperating42.241.536.638.142.315.528.834.434.033.126.837.230.734.319.023.649.425.920.720.928.521.417.722.418.127.627.314.815.012.914.421.322.625.27.716.715.614.411.032.58.725.611.010.013.253.1

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value152147138142153571011241191118911793100546713467525169524255446762262622274043552139373530812162302728106
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0105.299.4101.5100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.9100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating42.241.536.638.142.315.528.834.434.033.126.837.230.734.319.023.649.425.920.720.928.521.417.722.418.129.027.115.115.012.914.421.322.625.27.716.715.614.411.032.18.725.611.010.013.253.1
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value14814213313814857101124119111
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating40.940.235.436.941.015.528.834.434.033.1

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value11-45.93426-4.09215101458.959262812-2.937-14.315-57.977-29.97108.09824-120.4080.2438.79740-29.56416-15.74817-51.123-5.915208.674704.631-20.2712.201-30.12104.0090.158
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating3.2-12.96.9-1.14.427.412.72.57.58.43.7-0.9-4.7-19.8-10.53.73.09.3-47.30.13.616.7-12.26.5-6.47.6-22.0-3.311.65.037.12.4-10.51.0-10.74.41.70.1

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity


Other
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-0.604-0.3660.00.0574.6934.5794.5914.725.007-80.8760.00.00.00.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-5.20.80.00.0127.252.417.516.238.1-170.5565.0-0.0-0.00.00.0
Percentage of InterestAndDividendIncomeOperating-0.2-0.10.00.016.21.31.31.41.41.6-26.60.00.00.00.0
Percentage of InterestAndDividendIncomeOperating fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5.4045.027474.8754.9264.823-13.3232.1142.1062.121-21.9582.6912.8142.569-6.621.4661.5631.559-44.2031.1261.1631.021.6271.8381.7641.763-47.1280.5030.9760.977782.2372.6122.619-25.2161.6961.6971.698
Percentage of OtherComprehensiveIncomeLossNetOfTax46.8-10.9181.6-119.130.94.8-29.623.68.17.5-177.3-91.6-19.7-4.422.113.919.36.436.7463.413.22.5-5.511.3-11.210.092.2-8.54.711.3111.248.3-12.9119.083.716.342.31074.7
Percentage of InterestAndDividendIncomeOperating1.51.412.51.31.41.3-3.80.60.60.6-6.60.90.90.9-2.30.50.60.6-17.30.50.50.40.70.70.70.8-20.30.30.60.641.21.21.31.2-9.00.70.70.7
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value6.751-50.595-25.381-8.96711961.0862.152192129-10.63563-60.546-23.359.0536.53522-76.205-0.8837.17939-31.75314-17.94715-4.392-7.0197.256-8.2672.293-23.723-0.911-5.3718.8152.733-1.775
Percentage of OtherComprehensiveIncomeLossNetOfTax58.4110.1-97.5219.169.195.22.424.074.476.3239.2362.1-445.3104.477.986.180.793.663.3-363.481.696.4107.486.1114.088.08.6118.393.683.7-11.849.5117.0-41.417.884.668.2-1123.4
Percentage of InterestAndDividendIncomeOperating1.9-14.2-6.7-2.43.026.10.30.65.56.48.9-3.421.0-20.7-8.23.22.48.7-29.9-0.42.916.1-13.15.6-7.36.7-1.9-3.910.94.2-4.41.2-12.2-0.4-1.93.71.1-0.7
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value11-45.93426-4.09215101458.959262812-2.937-14.315-57.977-29.97108.09824-120.4080.2438.79740-29.56416-15.74817-51.123-5.915208.674704.631-20.2712.201-30.12104.0090.158
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating3.2-12.96.9-1.14.427.412.72.57.58.43.7-0.9-4.7-19.8-10.53.73.09.3-47.30.13.616.7-12.26.5-6.47.6-22.0-3.311.65.037.12.4-10.51.0-10.74.41.70.1
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

fcnca:ATMIncome


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1.5711.4821.4041.5371.3951.4221.5251.6351.6251.5111.6731.9192.2172.1712.2612.5962.513
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.40.40.40.40.40.40.40.50.50.40.50.60.70.70.80.90.9
Percentage of InterestAndDividendIncomeOperating fcnca:ATMIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fcnca:InsuranceCommissions


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3.7043.9984.0913.5763.1893.6883.7052.962.8543.2913.2312.7552.943.7763.452.8942.563
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax235.8269.8291.4232.7228.6259.4243.0181.0175.6217.8193.1143.6132.6173.9152.6111.5102.0
Percentage of InterestAndDividendIncomeOperating1.01.11.11.00.91.01.00.80.81.01.00.91.01.31.21.00.9
Percentage of InterestAndDividendIncomeOperating fcnca:InsuranceCommissions0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

fcnca:MerchantServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8.5328.917126.7635.3635.8885.986.0346.4555.8355.9925.8576.4786.177
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax543.1601.7918.6440.0384.4414.1392.1369.1397.2386.2358.2305.2292.2284.5
Percentage of InterestAndDividendIncomeOperating2.42.53.41.81.51.61.71.71.81.71.81.92.12.1
Percentage of InterestAndDividendIncomeOperating fcnca:MerchantServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AssetManagement1


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2121272622262425242524242523
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1392.91453.21967.51715.61603.71857.41603.61542.01512.21654.61459.81274.61150.91085.6
Percentage of InterestAndDividendIncomeOperating6.06.17.37.06.27.16.97.07.07.47.37.78.48.1
Percentage of InterestAndDividendIncomeOperating us-gaap:AssetManagement10.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CreditAndDebitCard


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2219181917181815181621141414141514
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1430.41346.81338.21285.41260.71277.11180.9976.01137.21100.81260.8764.9673.2680.9651.7596.6577.7
Percentage of InterestAndDividendIncomeOperating6.25.65.05.34.84.95.14.45.34.96.34.64.95.15.25.45.3
Percentage of InterestAndDividendIncomeOperating us-gaap:CreditAndDebitCard0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DepositAccount


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3132222017262727252526252526272525
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2021.22172.61630.11356.01256.11857.51785.21658.21587.11658.81613.71354.61170.61222.61205.0999.71029.1
Percentage of InterestAndDividendIncomeOperating8.89.16.15.64.87.17.77.57.47.48.18.28.59.19.59.19.5
Percentage of InterestAndDividendIncomeOperating us-gaap:DepositAccount0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FinancialServiceOther


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value5.92912167.8927.1457.7927.8218.2378.1647.4227.7197.6517.7567.487.0197.0736.628
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax377.4876.61193.9513.5512.2548.0512.9503.8502.4491.2461.4398.7349.8344.5310.4272.5263.7
Percentage of InterestAndDividendIncomeOperating1.63.74.42.12.02.12.22.32.32.22.32.42.62.62.52.52.4
Percentage of InterestAndDividendIncomeOperating us-gaap:FinancialServiceOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value5517553908499574866647866415943982437748376553596135408349543508834436345273458434769340183299032971322303219531475314493089630853300752194222062221542119921511213082135121283211732124021143208812101521021211672080621049211052121518466
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 us-gaap:StatementEquityComponents

us-gaap:Parent


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value48193905360634683195303933202596237125132400
Percentage of Assets9.69.810.210.09.79.711.012.211.112.011.5
Percentage of Assets9.69.810.210.09.79.711.012.211.112.011.5
Percentage of Assets us-gaap:Parent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value5069849587457284459243874376363623834179340803243831919314553164131064311933127031529309172997829888291942923428603285872810228088273871977519913200501912219529193691943219419191991931119251190201914319211193781907319331194101954816906
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 Assets91.992.091.591.691.790.591.090.590.590.290.190.090.290.290.390.490.790.990.990.690.690.890.990.991.091.091.190.190.390.590.290.890.991.091.290.790.991.191.191.191.491.591.791.892.092.191.6

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value5517553908499574866647866415943982437748376553596135408349543508834436345273458434769340183299032971322303219531475314493089630853300752194222062221542119921511213082135121283211732124021143208812101521021211672080621049211052121518466
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:StatementEquityComponents

us-gaap:Parent


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value48193905360634683195303933202596237125132400
Percentage of LiabilitiesAndStockholdersEquity9.69.810.210.09.79.711.012.211.112.011.5
Percentage of Assets9.69.810.210.09.79.711.012.211.112.011.5
Percentage of Assets us-gaap:Parent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value4476432142294074399139573586356835743523348834993446337233343313323931003012308330352961287228622793276526872166214921042076198219391918186419741929189218611871181017891732171816951667155914431441
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.18.08.58.48.39.59.09.59.59.89.910.09.89.89.79.69.39.19.19.49.49.29.19.19.09.08.99.99.79.59.89.29.19.08.89.39.18.98.98.98.68.58.38.28.07.98.40.00.0

us-gaap:StockholdersEquity us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:CommonClassA, us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value8.8118.8118.8118.8118.9299.2759.6249.879101010101111111111111111111111111111118.5868.5868.5868.5868.5868.5868.5868.5888.6298.6448.6448.6448.6698.7578.7578.7578.7578.757
Percentage of StockholdersEquity0.20.20.20.20.20.20.30.30.30.30.30.30.30.30.30.30.30.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.50.40.40.50.50.50.50.50.50.60.6
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB, us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value1.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0331.0331.0331.0331.0331.0331.0331.0331.6271.6271.6311.641.641.641.6781.6781.6781.678
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-22.12-33.67112-13.756-9.664-25.612-126.723-171.772-180.731-206.86-235.187-247.575-244.638-230.323-122.294-92.324-102.843-110.941-135.192-14.784-15.027-23.824-64.44-34.876-51.159-35.411-52.981-1.8584.057-16.594-25.268-95.545-100.176-79.905-82.106-51.986-62.407-66.416-66.574-32.527-29.451-39.907-36.529-24.333-22.557-24.859-24.949-36.8840
Percentage of StockholdersEquity-0.5-0.80.3-0.3-0.2-0.6-3.5-4.8-5.1-5.9-6.7-7.1-7.1-6.8-3.7-2.8-3.2-3.6-4.5-0.5-0.5-0.8-2.2-1.2-1.8-1.3-2.0-0.10.2-0.8-1.2-4.8-5.2-4.2-4.4-2.6-3.2-3.5-3.6-1.7-1.6-2.2-2.1-1.4-1.3-1.5-1.6-2.62.8
Percentage of Assets-0.0-0.10.0-0.0-0.0-0.1-0.3-0.5-0.5-0.6-0.7-0.7-0.7-0.7-0.4-0.3-0.3-0.3-0.4-0.0-0.0-0.1-0.2-0.1-0.2-0.1-0.2-0.00.0-0.1-0.1-0.4-0.5-0.4-0.4-0.2-0.3-0.3-0.3-0.2-0.1-0.2-0.2-0.1-0.1-0.1-0.10.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value42293586348833343012287226872076186418611732
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.59.09.99.79.19.18.99.88.88.98.3
Percentage of Assets us-gaap:Parent87.891.896.796.194.394.580.980.078.674.172.2

us-gaap:PreferredStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value3393393393393390.0030.00.00.00.0
Percentage of StockholdersEquity7.67.98.08.38.50.00.00.00.00.0
Percentage of Assets0.60.60.70.70.70.00.00.00.00.0
Percentage of Assets us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value4148400538673738365136323658356034403325321831333020293127852735267125402476242723792314226522262174212920692015199119681948192418861845179218721838180417731750168516741615158815631538142913261246
Percentage of StockholdersEquity92.792.791.491.891.591.8102.099.896.294.492.289.687.686.983.582.582.581.982.278.778.478.178.977.877.877.077.093.092.793.593.897.197.396.296.294.895.395.495.393.593.193.693.292.492.292.291.791.986.5
Percentage of Assets7.57.47.77.77.68.79.29.49.19.29.19.08.68.58.17.97.77.57.57.47.47.27.27.17.06.96.99.29.08.99.28.98.98.68.48.88.78.58.58.38.07.97.87.57.47.37.70.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Tier One Risk Based Capital

us-gaap:TierOneRiskBasedCapital dei:LegalEntity

us-gaap:TierOneRiskBasedCapital

fcnca:BancShares


Tier
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value45773344346332872995283126902103
Percentage of TierOneRiskBasedCapital100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.28.49.89.59.19.08.99.9
Percentage of Assets fcnca:BancShares0.00.00.00.00.00.00.00.0

fcnca:FCB


Tier
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value45433554331531892942282120191978
Percentage of TierOneRiskBasedCapital99.3106.395.797.098.299.775.194.0
Percentage of Assets9.18.99.49.28.99.06.79.3
Percentage of Assets fcnca:FCB0.00.00.00.00.00.00.00.0

Cash

us-gaap:Cash us-gaap:StatementEquityComponents

us-gaap:Cash

us-gaap:Parent


Cashus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value494.5737.188458.2782624132.1311014
Percentage of Cash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.00.00.10.00.10.10.10.00.10.1
Percentage of Assets us-gaap:Parent1.00.10.21.30.30.90.70.50.10.40.6

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:StatementEquityComponents

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:Parent


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value494.5737.188458.2782624132.13110148.46710
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.00.00.10.00.10.10.10.00.10.10.00.0
Percentage of Assets us-gaap:Parent1.00.10.21.30.30.90.70.50.10.40.60.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value395410362352389454376288284268327336
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.80.70.70.81.10.90.80.80.70.91.0

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
Value22612159209619381859181017851474143213501327
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.55.45.95.65.65.85.97.06.76.56.4

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

fcnca:Premisesandleaseholdimprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1286122812281158113010891045875840
Percentage of PropertyPlantAndEquipmentGross56.956.958.659.860.860.258.659.458.6
Percentage of Assets2.63.13.53.43.43.53.54.13.9
Percentage of Assets fcnca:Premisesandleaseholdimprovements0.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


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
Value639595560489443441444394390353371
Percentage of PropertyPlantAndEquipmentGross28.327.626.825.223.824.424.926.827.226.228.0
Percentage of Assets1.31.51.61.41.31.41.51.91.81.71.8
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


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
Value336335306290285279295204202193189
Percentage of PropertyPlantAndEquipmentGross14.915.514.615.015.415.516.513.914.114.314.3
Percentage of Assets0.70.80.90.80.90.91.01.00.90.90.9
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.0

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
Value1010914892800726675660597549496485
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.02.32.52.32.22.12.22.82.62.42.3

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.4255.795146.1256.3046.165.9275.9156.0765.9436.0686.0185.5136.0495.8485.9495.7745.2715.1755.4985.5495.586113.4633.0965.2065.2180.530.570.6371.0491.1371.0311.1691.4761.5631.5861.578
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value123712381251125512551251124412221213120312041167116711401138113111291123113311341120112711351123112111161125891883878876868872872882885873864854847842839842845846839837
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 Assets2.22.32.52.62.63.03.13.23.23.33.43.33.33.33.33.33.23.33.43.43.53.53.63.63.63.63.74.14.04.04.14.04.14.14.14.24.14.14.14.04.04.04.14.04.04.04.5

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value350350350350350350349296296236236208208150150150150150150150139139139139139139139127127127102102102102102102102102102102102102102102102102102
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.70.70.70.80.90.80.80.70.70.60.60.40.40.40.40.40.50.50.40.40.40.40.50.50.50.60.60.60.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.6

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
Value47515054586368656967727277687377807578798084909598101893.2913.8214.391.2471.6962.2662.8843.5564.3225.1756.0767.0328.0818.2349.2659.8971112146.361
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 Assets0.10.10.10.10.10.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.30.30.30.30.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value294348515771891.2473.5567.0329.897
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.20.20.30.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value65656869737577798170
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.20.20.20.20.20.2

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi

us-gaap:EquitySecuritiesFvNi


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value118106919311431582116111109921091070.0
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.20.20.20.20.20.80.20.30.30.30.30.30.30.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:EquitySecurities, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value49433238501112917
Percentage of EquitySecuritiesFvNi41.640.935.841.044.035.435.819.3
Percentage of Assets0.10.10.10.10.10.30.10.1
Percentage of Assets us-gaap:EquitySecurities us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.0

us-gaap:EquitySecurities, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value69635854632035274
Percentage of EquitySecuritiesFvNi58.459.164.259.056.064.664.280.7
Percentage of Assets0.10.10.10.10.10.50.10.2
Percentage of Assets us-gaap:EquitySecurities us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:EquitySecurities, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value11810691931143158292
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.80.20.3
Percentage of Assets us-gaap:EquitySecurities us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value118106919311431582116111109921091070.0
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.20.20.20.20.20.80.20.30.30.30.30.30.30.0
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value118106919311431582116111109921091070.0
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.20.20.20.20.20.80.20.30.30.30.30.30.30.0
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:StatementEquityComponents

us-gaap:Parent


Equity
Period End2020-12-312019-12-312018-12-312017-12-31
Value9182920.0
Percentage of EquitySecuritiesFvNi100.0100.0100.00.0
Percentage of Assets0.20.20.30.0
Percentage of Assets us-gaap:Parent1.92.12.60.0

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
Value1593750783710663651610540739439433397442329686365424433471401784403417616425368394351281250263329334344367261272278286265264244258245201223225
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 Assets2.91.41.61.51.41.61.51.42.01.21.21.11.31.02.01.11.21.31.41.22.41.31.32.01.41.21.31.61.31.11.21.51.61.61.71.21.31.31.41.31.31.21.21.21.01.11.2

us-gaap:OtherAssets us-gaap:StatementEquityComponents

us-gaap:Parent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value484542469273741448311489
Percentage of OtherAssets6.27.49.96.819.717.718.855.022.740.134.6
Percentage of Assets0.10.10.10.10.30.20.20.70.40.60.4
Percentage of Assets us-gaap:Parent1.01.21.21.32.92.42.25.63.54.63.7

Time Deposit Maturities Year One

us-gaap:TimeDepositMaturitiesYearOne

us-gaap:TimeDepositMaturitiesYearOne


Time
Period End2020-12-31
Value1844
Percentage of TimeDepositMaturitiesYearOne100.0
Percentage of Assets3.7

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value1248588319870832704351510444444472644649687744792801809819918922797
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.51.50.92.52.52.21.22.42.12.12.23.03.13.33.53.83.83.93.94.44.34.3

us-gaap:LongTermDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

fcnca:FixedToFloatingSubordinatedNotesAt3Point375PercentMaturing2030, us-gaap:SubordinatedDebt


Long
Period End2020-12-31
Value350
Percentage of LongTermDebt28.0
Percentage of Assets0.7
Percentage of Assets fcnca:FixedToFloatingSubordinatedNotesAt3Point375PercentMaturing2030 us-gaap:SubordinatedDebt0.0

fcnca:JuniorSubordinantedDebentureAt3MonthLiborPlus1Point75PercentMaturingJune302036, us-gaap:JuniorSubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value88888890909696969697118
Percentage of LongTermDebt7.115.027.610.410.813.727.418.921.714.114.6
Percentage of Assets0.20.20.20.30.30.30.30.50.50.50.6
Percentage of Assets fcnca:JuniorSubordinantedDebentureAt3MonthLiborPlus1Point75PercentMaturingJune302036 us-gaap:JuniorSubordinatedDebt0.00.00.00.00.00.00.00.00.00.00.0

fcnca:JuniorSubordinatedDebentureAt3MonthLiborPlus2Point25PercentMaturingJune152034, us-gaap:JuniorSubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value191919192425260.0
Percentage of LongTermDebt1.63.36.12.33.03.77.60.0
Percentage of Assets0.00.00.10.10.10.10.10.0
Percentage of Assets fcnca:JuniorSubordinatedDebentureAt3MonthLiborPlus2Point25PercentMaturingJune152034 us-gaap:JuniorSubordinatedDebt0.00.00.00.00.00.00.00.0

fcnca:JuniorSubordinatedDebentureAt3MonthLiborPlus2Point80PercentMaturingMarch302034, us-gaap:JuniorSubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-31
Value14140.0
Percentage of LongTermDebt1.22.50.0
Percentage of Assets0.00.00.0
Percentage of Assets fcnca:JuniorSubordinatedDebentureAt3MonthLiborPlus2Point80PercentMaturingMarch302034 us-gaap:JuniorSubordinatedDebt0.00.00.0

fcnca:JuniorSubordinatedDebentureAt3MonthLiborPlus2Point85PercentMaturingApril72034, us-gaap:JuniorSubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value10101010101010.00.0
Percentage of LongTermDebt0.81.83.21.21.21.52.80.0
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets fcnca:JuniorSubordinatedDebentureAt3MonthLiborPlus2Point85PercentMaturingApril72034 us-gaap:JuniorSubordinatedDebt0.00.00.00.00.00.00.00.0

fcnca:RatesRangingFromPoint75PercentTo3Point17PercentAndMaturingThroughFebruary2032, us-gaap:FederalHomeLoanBankAdvances


Long
Period End2020-12-312019-12-31
Value655317
Percentage of LongTermDebt52.553.9
Percentage of Assets1.30.8
Percentage of Assets fcnca:RatesRangingFromPoint75PercentTo3Point17PercentAndMaturingThroughFebruary2032 us-gaap:FederalHomeLoanBankAdvances0.00.0

fcnca:UnsecuredTermLoanAt1MonthLiborPlus1Point10PercentMaturingSeptember52022, fcnca:UnsecuredTermLoan


Long
Period End2020-12-312019-12-312018-12-31
Value82960.0
Percentage of LongTermDebt6.616.40.0
Percentage of Assets0.20.20.0
Percentage of Assets fcnca:UnsecuredTermLoanAt1MonthLiborPlus1Point10PercentMaturingSeptember52022 fcnca:UnsecuredTermLoan0.00.00.0

us-gaap:LongTermDebt us-gaap:LongtermDebtType

fcnca:OtherLongTermDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value0.0373.3850.7610.08330303030303030
Percentage of LongTermDebt0.00.60.20.03.64.38.65.96.84.43.7
Percentage of Assets0.00.00.00.00.10.10.10.10.10.10.1
Percentage of Assets fcnca:OtherLongTermDebt0.00.00.00.00.00.00.00.00.00.00.0

fcnca:UnamortizedPurchaseAccountingAdjustments


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value-1.999-1.569-1.426-2.964-3.35-2.907-0.1562.4493.0694.426.288
Percentage of LongTermDebt-0.2-0.3-0.4-0.3-0.4-0.4-0.00.50.70.60.8
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.00.0
Percentage of Assets fcnca:UnamortizedPurchaseAccountingAdjustments0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CapitalLeaseObligations


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6.3088.23137.7955.7019.2263.156.515105.6889.903
Percentage of LongTermDebt0.51.44.10.90.71.30.91.32.30.81.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:JuniorSubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value132132122120125132132
Percentage of LongTermDebt10.622.538.213.815.018.837.8
Percentage of Assets0.30.30.30.30.40.40.4
Percentage of Assets us-gaap:JuniorSubordinatedDebt0.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:StatementEquityComponents

us-gaap:Parent


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1282011051071261331369696251273
Percentage of LongTermDebt10.334.333.012.415.219.038.918.921.736.633.7
Percentage of Assets0.30.50.30.30.40.40.50.50.51.21.3
Percentage of Assets us-gaap:Parent2.75.22.93.14.04.44.13.74.110.011.4

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value11
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value9980000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value8146000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value5223000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value32
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.1

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value65656870737576798072
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.20.20.20.20.20.2

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value80
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value11
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value4476432142294074399139573586356835743523348834993446337233343313323931003012308330352961287228622793276526872166214921042076198219391918186419741929189218611871181017891732171816951667155914431441
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.18.08.58.48.39.59.09.59.59.89.910.09.89.89.79.69.39.19.19.49.49.29.19.19.09.08.99.99.79.59.89.29.19.08.89.39.18.98.98.98.68.58.38.28.07.98.40.00.0

us-gaap:StockholdersEquity us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:CommonClassA, us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value8.8118.8118.8118.8118.9299.2759.6249.879101010101111111111111111111111111111118.5868.5868.5868.5868.5868.5868.5868.5888.6298.6448.6448.6448.6698.7578.7578.7578.7578.757
Percentage of StockholdersEquity0.20.20.20.20.20.20.30.30.30.30.30.30.30.30.30.30.30.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.50.40.40.50.50.50.50.50.50.60.6
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB, us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value1.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0331.0331.0331.0331.0331.0331.0331.0331.6271.6271.6311.641.641.641.6781.6781.6781.678
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-22.12-33.67112-13.756-9.664-25.612-126.723-171.772-180.731-206.86-235.187-247.575-244.638-230.323-122.294-92.324-102.843-110.941-135.192-14.784-15.027-23.824-64.44-34.876-51.159-35.411-52.981-1.8584.057-16.594-25.268-95.545-100.176-79.905-82.106-51.986-62.407-66.416-66.574-32.527-29.451-39.907-36.529-24.333-22.557-24.859-24.949-36.8840
Percentage of StockholdersEquity-0.5-0.80.3-0.3-0.2-0.6-3.5-4.8-5.1-5.9-6.7-7.1-7.1-6.8-3.7-2.8-3.2-3.6-4.5-0.5-0.5-0.8-2.2-1.2-1.8-1.3-2.0-0.10.2-0.8-1.2-4.8-5.2-4.2-4.4-2.6-3.2-3.5-3.6-1.7-1.6-2.2-2.1-1.4-1.3-1.5-1.6-2.62.8
Percentage of Assets-0.0-0.10.0-0.0-0.0-0.1-0.3-0.5-0.5-0.6-0.7-0.7-0.7-0.7-0.4-0.3-0.3-0.3-0.4-0.0-0.0-0.1-0.2-0.1-0.2-0.1-0.2-0.00.0-0.1-0.1-0.4-0.5-0.4-0.4-0.2-0.3-0.3-0.3-0.2-0.1-0.2-0.2-0.1-0.1-0.1-0.10.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value42293586348833343012287226872076186418611732
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.59.09.99.79.19.18.99.88.88.98.3
Percentage of Assets us-gaap:Parent87.891.896.796.194.394.580.980.078.674.172.2

us-gaap:PreferredStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value3393393393393390.0030.00.00.00.0
Percentage of StockholdersEquity7.67.98.08.38.50.00.00.00.00.0
Percentage of Assets0.60.60.70.70.70.00.00.00.00.0
Percentage of Assets us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value4148400538673738365136323658356034403325321831333020293127852735267125402476242723792314226522262174212920692015199119681948192418861845179218721838180417731750168516741615158815631538142913261246
Percentage of StockholdersEquity92.792.791.491.891.591.8102.099.896.294.492.289.687.686.983.582.582.581.982.278.778.478.178.977.877.877.077.093.092.793.593.897.197.396.296.294.895.395.495.393.593.193.693.292.492.292.291.791.986.5
Percentage of Assets7.57.47.77.77.68.79.29.49.19.29.19.08.68.58.17.97.77.57.57.47.47.27.27.17.06.96.99.29.08.99.28.98.98.68.48.88.78.58.58.38.07.97.87.57.47.37.70.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3.1873.7914.1570.00.00.0-57.286-61.979-66.558-71.149-75.869-80.8760.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.0-0.2-0.2-0.2-0.2-0.2-0.20.0
Percentage of Assets fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value-60.217-65.621-70.648-117.891-122.766-127.692-132.515-119.192-121.306-123.412-125.533-103.575-106.266-91.349
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-1889.5-1731.0-1699.50.00.00.00.0208.1195.7185.4176.4136.5131.40.0
Percentage of Assets-0.1-0.1-0.1-0.2-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.3-0.3-0.3
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3428781041131025.7924.7062.554-16.89-38.505-68.131-57.496-30.945
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1095.4742.81894.50.00.00.00.0-8.2-4.125.454.189.871.10.0
Percentage of Assets0.10.10.20.20.20.20.00.00.0-0.0-0.1-0.2-0.2-0.1
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value-22.12-33.67112-13.756-9.664-25.612-126.723-171.772-180.731-206.86-235.187-247.575-244.638-122.294
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-694.1-888.2295.00.00.00.00.0299.8291.6310.8330.6326.3302.50.0
Percentage of Assets-0.0-0.10.0-0.0-0.0-0.1-0.3-0.5-0.5-0.6-0.7-0.7-0.7-0.4
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue us-gaap:StatementClassOfStock

us-gaap:CommonStockValue

us-gaap:CommonClassA


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
Value8.8118.8118.8118.8118.9299.2759.6249.879101010101111111111111111111111111111118.5868.5868.5868.5868.5868.5868.5868.5888.6298.6448.6448.6448.6698.7578.7578.7578.7578.7578.7578.757
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 Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


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
Value1.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0051.0331.0331.0331.0331.0331.0331.0331.0331.6271.6271.6311.641.641.641.6781.6781.6781.6781.6781.678
Percentage of CommonStockValue11.411.411.411.411.310.810.410.29.99.79.59.29.19.19.19.19.19.19.19.19.19.19.19.19.19.19.112.012.012.012.012.012.012.012.018.918.818.919.018.918.719.219.219.219.219.219.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap: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
Value41484005386737383651363236583560344033253218313330202931278527352671254024762427237923142265222621742129206920151991196819481924188618451792187218381804177317501685167416151588156315381429
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 Assets7.57.47.77.77.68.79.29.49.19.29.19.08.68.58.17.97.77.57.57.47.47.27.27.17.06.96.99.29.08.99.28.98.98.68.48.88.78.58.58.38.07.97.87.57.47.37.7

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-22.12-33.67112-13.756-9.664-25.612-126.723-171.772-180.731-206.86-235.187-247.575-244.638-230.323-122.294-92.324-102.843-110.941-135.192-14.784-15.027-23.824-64.44-34.876-51.159-35.411-52.981-1.8584.057-16.594-25.268-95.545-100.176-79.905-82.106-51.986-62.407-66.416-66.574-32.527-29.451-39.907-36.529-24.333-22.557-24.859-24.949
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.0-0.10.0-0.0-0.0-0.1-0.3-0.5-0.5-0.6-0.7-0.7-0.7-0.7-0.4-0.3-0.3-0.3-0.4-0.0-0.0-0.1-0.2-0.1-0.2-0.1-0.2-0.00.0-0.1-0.1-0.4-0.5-0.4-0.4-0.2-0.3-0.3-0.3-0.2-0.1-0.2-0.2-0.1-0.1-0.1-0.1

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity


Accumulated
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value3.1873.7914.1570.0-57.286-61.979-66.558-71.149-75.869-80.8760.00.00.00.00.00.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-14.4-11.333.9-0.033.434.332.230.330.633.1-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets0.00.00.00.0-0.2-0.2-0.2-0.2-0.2-0.20.00.00.00.00.00.0
Percentage of Assets fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-60.217-65.621-70.648-117.891-122.766-127.692-132.515-119.192-121.306-123.412-125.533-103.575-106.266-109.08-91.349-84.729-86.195-87.758-89.317-45.114-46.24-47.403-48.423-50.05-51.888-53.652-55.415-8.287-8.79-9.766-10.743-88.863-91.1-93.712-96.331-71.114-72.811-74.508-76.206-41.829-42.832-43.835-44.837-41.301
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax272.2194.9-576.1857.01270.3498.6104.669.467.159.753.441.843.447.474.791.883.879.166.1305.2307.7199.075.1143.5101.4151.5104.6446.0-216.758.942.593.090.9117.3117.3136.8116.7112.2114.5128.6145.4109.8122.7169.7
Percentage of Assets-0.1-0.1-0.1-0.2-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.3-0.3-0.3-0.3-0.2-0.2-0.3-0.3-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.0-0.0-0.0-0.1-0.4-0.4-0.4-0.5-0.3-0.3-0.4-0.4-0.2-0.2-0.2-0.2-0.2
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3428781041131025.7924.7062.554-16.89-38.505-68.131-57.496-121.243-30.945-7.595-16.648-23.183-45.875303124-15.125162.604205.0989.4916-2.835-10.091-1.824-4.11719202517141617198.6331425
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-157.8-83.6642.2-757.0-1170.3-398.6-4.6-2.7-1.48.216.427.523.552.625.38.216.220.933.9-205.2-207.7-100.923.5-47.7-5.1-58.0-9.6-510.8406.517.139.91.94.1-24.5-25.0-49.8-27.4-21.6-24.2-53.8-65.6-21.6-38.5-105.2
Percentage of Assets0.10.10.20.20.20.20.00.00.0-0.0-0.1-0.2-0.2-0.4-0.1-0.0-0.0-0.1-0.10.10.10.1-0.00.10.00.10.00.00.1-0.0-0.0-0.0-0.00.10.10.10.10.10.10.10.10.00.10.1
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312011-06-302011-03-312010-06-302010-03-31
Value-702.93110412311583171411797914012712433778131
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-194.329.532.830.822.94.839.949.522.741.638.250.8137.636.065.5

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312011-06-302011-03-312010-06-302010-03-31
Value-384.34-3968.346-1230.773-811.611-6388.079-1441.295-460.068-119.747-400.682-577.972-11.6711851473-169.151-207.104
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-106.2-1116.8-326.6-216.8-1758.6-390.0-129.9-33.1-114.2-171.5-3.575.4601.0-77.8-103.2

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312011-06-302011-03-312010-06-302010-03-31
Value10723911111665962391501406-54.862336379-50.677-178.499-1865.046-28.478340
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating296.31100.9296.3176.11717.8406.2114.8-15.195.9112.5-15.2-72.7-760.6-13.1169.7

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-15.131489.629-36.814-64.98777874.78615-58.841
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-4.213.62.6-9.8-17.921.024.81.34.4-17.5

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.8868.555-41.762-1.54729-11.485103812-7.316-27.019162.738-5.5735821386.69346-4.8270.305-8.8064.49119-13.559-10.203-10.309-20.2861.768-4.51265-20.36-5.3737.733-41.26412-1.153-5.69219-19.11-18.2881.15540-48.123-17.657-16.448
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312011-06-302011-03-312010-06-302010-03-31
Value-702.93110412311583171411797914012712433778131
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-194.329.532.830.822.94.839.949.522.741.638.250.8137.636.065.5

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
Value152147138142153571011241191118911793100546713467525169524255446363262622274043552139373530812162302728106
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 InterestAndDividendIncomeOperating42.241.536.638.142.315.528.834.434.033.126.837.230.734.319.023.649.425.920.720.928.521.417.722.418.127.627.314.815.012.914.421.322.625.27.716.715.614.411.032.58.725.611.010.013.253.1

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value152147138142153571011241191118911793100546713467525169524255446762262622274043552139373530812162302728106
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0105.299.4101.5100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.9100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating42.241.536.638.142.315.528.834.434.033.126.837.230.734.319.023.649.425.920.720.928.521.417.722.418.129.027.115.115.012.914.421.322.625.27.716.715.614.411.032.18.725.611.010.013.253.1
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312011-06-302011-03-312010-06-302010-03-31
Value-384.34-3968.346-1230.773-811.611-6388.079-1441.295-460.068-119.747-400.682-577.972-11.6711851473-169.151-207.104
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-106.2-1116.8-326.6-216.8-1758.6-390.0-129.9-33.1-114.2-171.5-3.575.4601.0-77.8-103.2

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2723343535263134302352283524242420152031161334231813162622172712178.7131524222623201912146-115.6542118
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312011-06-302011-03-312010-06-302010-03-31
Value10723911111665962391501406-54.862336379-50.677-178.499-1865.046-28.478340
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating296.31100.9296.3176.11717.8406.2114.8-15.195.9112.5-15.2-72.7-760.6-13.1169.7

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-31
Value0.00.00.04001001000.00.00.01250.00.01750.00.00.075750.02300.01200.00.00.00.00.00.310.0-183.122
Percentage of ProceedsFromIssuanceOfLongTermDebt0.00.00.0100.0100.0100.00.00.00.0100.00.00.0100.00.00.00.0100.0100.00.0100.00.0100.00.00.00.00.00.0100.00.0100.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value139.2498.5638.6428.9324.2564.3984.4964.5754.6684.1674.2044.2044.2043.6030.07.2060.03.6033.6037.2060.07.2063.6033.6033.6032.8862.8862.8862.8850.02.8862.8862.8916.1533.0763.0843.0853.1353.1093.1253.133.1313.133.133.13
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.0501261561311348898105580.00.00.00.00.00.00.00.00.00.00.321982.5350.8411.5733.722137.5750.00.00.0
Percentage of PaymentsForRepurchaseOfCommonStock0.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateStatedPercentage

fcnca:FixedToFloatingSubordinatedNotesAt3Point375PercentMaturing2030, us-gaap:SubordinatedDebt


Debt
Period End2020-12-31
Value3.375
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations fcnca:FixedToFloatingSubordinatedNotesAt3Point375PercentMaturing2030 us-gaap:SubordinatedDebt0.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:VariableRate

fcnca:JuniorSubordinatedDebentureAt6point50PercentMaturingOctober12025, us-gaap:JuniorSubordinatedDebt, fcnca:Libor3MonthRate


Debt
Period End2020-12-312018-12-31
Value6.50.065
Percentage of DebtInstrumentInterestRateStatedPercentage192.60.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations fcnca:JuniorSubordinatedDebentureAt6point50PercentMaturingOctober12025 us-gaap:JuniorSubordinatedDebt fcnca:Libor3MonthRate0.00.0

fcnca:JuniorSubordinatedDebentureAt7PercentMaturingDecember312026, us-gaap:JuniorSubordinatedDebt, fcnca:Libor3MonthRate


Debt
Period End2020-12-312018-12-31
Value7.00.07
Percentage of DebtInstrumentInterestRateStatedPercentage207.40.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations fcnca:JuniorSubordinatedDebentureAt7PercentMaturingDecember312026 us-gaap:JuniorSubordinatedDebt fcnca:Libor3MonthRate0.00.0

fcnca:JuniorSubordinatedDebentureAt7Point13PercentMaturingFebruary252020, us-gaap:JuniorSubordinatedDebt, fcnca:Libor3MonthRate


Debt
Period End2020-12-31
Value7.13
Percentage of DebtInstrumentInterestRateStatedPercentage211.3
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations fcnca:JuniorSubordinatedDebentureAt7Point13PercentMaturingFebruary252020 us-gaap:JuniorSubordinatedDebt fcnca:Libor3MonthRate0.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value42126525060677296869080
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value31322829285.9753.8652.823
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0

Proceeds From Repayments Of Short Term Debt

us-gaap:ProceedsFromRepaymentsOfShortTermDebt

us-gaap:ProceedsFromRepaymentsOfShortTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1139-52.402-46.38794-92.871111-29.632-73.681-35.428-118.9773-62.254-139.04914-120.237-26.0787-126.727-38.5123992-165.02436-218.625-50.835-116.6669.6294535-93.017228.8354.597-164.268-22.526226214-70.636-10.609-217.033-19.119
Percentage of ProceedsFromRepaymentsOfShortTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:AccretionOfFDICSharedLossPayable

fcnca:AccretionOfFDICSharedLossPayable


Accretion
Period End2021-06-302021-03-312020-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0502000.0288000.01021000.01009000.01001000.0992000.0961000.0973000.0963000.0954000.0
Percentage of AccretionOfFDICSharedLossPayable0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:DividendsDeclaredbutnotPaid

fcnca:DividendsDeclaredbutnotPaid


Dividends
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-06-302013-03-31
Value4614000.0687000.0-81000.0-134000.04141000.0-141000.0-13000.0-165000.04575000.0500000.0-36000.004204000.0601000.0003603000.00-3603000.003603000.0-3603000.0003603000.0717000.001000.02885000.02886000.00
Percentage of DividendsDeclaredbutnotPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.00.0100.00.0100.0100.00.00.0100.0100.00.0100.0100.0100.00.0

fcnca:FDICSharedLossPayableAdjustments

fcnca:FDICSharedLossPayableAdjustments


F
Period End2021-03-312020-12-312020-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value16-198.936990.0210.080.020.1320.1780.1040.150.051
Percentage of FDICSharedLossPayableAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:FinancingReceivableAllowanceForCreditLossDecreaseCOVID19

fcnca:FinancingReceivableAllowanceForCreditLossDecreaseCOVID19


Financing
Period End2020-12-31
Value0.0
Percentage of FinancingReceivableAllowanceForCreditLossDecreaseCOVID190.0

fcnca:GainsLossesonSalesofForeclosedOtherRealEstate

fcnca:GainsLossesonSalesofForeclosedOtherRealEstate


Gains
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value5600000.0-1800000.0-766000.0-178000.0-56000.00376000.0496000.0
Percentage of GainsLossesonSalesofForeclosedOtherRealEstate100.0100.0100.0100.0100.00.0100.0100.0

fcnca:LoansAndLeasesReceivablePeriodIncreaseDecrease us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

fcnca:LoansAndLeasesReceivablePeriodIncreaseDecrease

fcnca:SBAPPP


Loans
Period End2021-06-302021-03-31
Value1001100
Percentage of LoansAndLeasesReceivablePeriodIncreaseDecrease100.0100.0

fcnca:LoansHeldForSaleExchangedForInvestmentSecurities

fcnca:LoansHeldForSaleExchangedForInvestmentSecurities


Loans
Period End2021-06-302021-03-31
Value6263
Percentage of LoansHeldForSaleExchangedForInvestmentSecurities100.0100.0

fcnca:MaturitiesOfInvestmentSecuritiesUnsettled

fcnca:MaturitiesOfInvestmentSecuritiesUnsettled


Maturities
Period End2021-03-31
Value3.0
Percentage of MaturitiesOfInvestmentSecuritiesUnsettled100.0

fcnca:NetAmortizationOfPremiumsAndAccretionOfDiscounts

fcnca:NetAmortizationOfPremiumsAndAccretionOfDiscounts


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-1.374-0.1161316-16.215-4.6744.3039.972118.737135.7256.917105.493111110119.0651112142428171317125.79618212647-19.22959566010743503511947-10.559-10.991
Percentage of NetAmortizationOfPremiumsAndAccretionOfDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:NetChangeInOvernightInvestments

fcnca:NetChangeInOvernightInvestments


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-282.625-3241.421-1209.391-30.37-2419.05745484690-251.252-589.119146280733-558.9551044450-52.141-856.4421124-717.925632-805.699305-664.791755-734.0046941142-302.145494-314.206-85.693-511.052245296-232.202-317.359-24.973331-156.368-186.896650-312.262129-143.302
Percentage of NetChangeInOvernightInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:NetIncreaseInLoansOutstandingInvestingActivities

fcnca:NetIncreaseInLoansOutstandingInvestingActivities


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value519-383.507-3286.187-202.667
Percentage of NetIncreaseInLoansOutstandingInvestingActivities100.0100.0100.0100.0

fcnca:NoninterestIncomeMortgageBanking

fcnca:NoninterestIncomeMortgageBanking


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8.9598.489-4.019139.8115.2244.9927.4385.0383.658
Percentage of NoninterestIncomeMortgageBanking100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentForAccretionOnUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodBeforeTax

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentForAccretionOnUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodBeforeTax


Other
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value785000.0475000.000-1885000.0-6095000.0-5947000.0-5962000.0-6131000.0-6502000.04473000.00000
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentForAccretionOnUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodBeforeTax100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityBeforeTax us-gaap:StatementEquityComponents

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityBeforeTax

fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity


Other
Period End2021-06-302021-03-312019-12-312019-09-302019-06-30
Value785000.0475000.0-1885000.0-6095000.0-5947000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityBeforeTax100.0100.0100.0100.0100.0

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityNetOfTax us-gaap:StatementEquityComponents

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityNetOfTax

fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity


Other
Period End2021-06-302021-03-312019-12-312019-09-302019-06-30
Value0.6040.366-1.452-4.693-4.579
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityNetOfTax100.0100.0100.0100.0100.0

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityTax us-gaap:StatementEquityComponents

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityTax

fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity


Other
Period End2021-06-302021-03-312019-12-312019-09-302019-06-30
Value-181000.0-109000.0433000.01402000.01368000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentOfUnrealizedLossesFromAOCIForSecuritiesAvailableForSaleTransferredToHeldToMaturityTax100.0100.0100.0100.0100.0

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentforAccretiononUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodTax

fcnca:OtherComprehensiveIncomeLossReclassificationAdjustmentforAccretiononUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodTax


Other
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-181000.0-109000.000433000.01402000.01368000.01371000.01411000.01495000.0-1028000.00000
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentforAccretiononUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodTax100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

fcnca:OtherComprehensiveIncomeLossUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodBeforeTax

fcnca:OtherComprehensiveIncomeLossUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodBeforeTax


Other
Period End2020-11-012019-12-312019-09-302019-06-302018-12-312018-09-302018-05-012018-06-302017-12-312017-09-302017-06-30
Value5.9720.00.00.00.0109-109.5070.00.00.0
Percentage of OtherComprehensiveIncomeLossUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodBeforeTax100.0100.00.00.00.00.0100.0100.00.00.00.0

fcnca:OtherComprehensiveIncomeLossUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodNetOfTax

fcnca:OtherComprehensiveIncomeLossUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-11-012020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-05-012018-06-302018-03-312017-12-312017-09-302017-06-30
Value-0.604-0.3664.50.00.0574.6934.5794.5914.725.00784-80.8760.00.00.00.0
Percentage of OtherComprehensiveIncomeLossUnrealizedLossesOnSecuritiesAvailableForSaleTransferredToHeldToMaturityArisingDuringPeriodNetOfTax100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

fcnca:PaymentsforProceedsfromMortgageServicingRightsOperatingActivities

fcnca:PaymentsforProceedsfromMortgageServicingRightsOperatingActivities


Paymentsfor
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1317000.06567000.01689000.01027000.0-1384000.01487000.01585000.0698000.0
Percentage of PaymentsforProceedsfromMortgageServicingRightsOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:Proceedsfromissuanceofpreferredstocknetofissuancecosts

fcnca:Proceedsfromissuanceofpreferredstocknetofissuancecosts


Proceedsfromissuanceofpreferredstocknetofissuancecosts
Period End2020-09-302020-06-302020-03-31
Value0.0-0.021339
Percentage of Proceedsfromissuanceofpreferredstocknetofissuancecosts0.0100.0100.0

fcnca:ProcessingFeesPaidtoThirdParties

fcnca:ProcessingFeesPaidtoThirdParties


Processing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1413121110108.5727.256.6417.0896.6347.2977.898.196
Percentage of ProcessingFeesPaidtoThirdParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:PropertyPlantAndEquipmentOwnedTransferToRealEstateOwned

fcnca:PropertyPlantAndEquipmentOwnedTransferToRealEstateOwned


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.8174.7327.0546.0870.6191.4274.8610.01.6640.52
Percentage of PropertyPlantAndEquipmentOwnedTransferToRealEstateOwned100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

fcnca:RepaymentofFDICSharedLossPayable

fcnca:RepaymentofFDICSharedLossPayable


Repaymentof
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.0161980.0-99.4680.00.0
Percentage of RepaymentofFDICSharedLossPayable0.0100.0100.00.0100.00.00.0

fcnca:ServicingAssetsandServicingLiabilitiesatFairValueAssumptionsUsedtoEstimateFairValueCosttoServiceLoansPerLoan

fcnca:ServicingAssetsandServicingLiabilitiesatFairValueAssumptionsUsedtoEstimateFairValueCosttoServiceLoansPerLoan


Servicing
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value087.580087.30087.09
Percentage of ServicingAssetsandServicingLiabilitiesatFairValueAssumptionsUsedtoEstimateFairValueCosttoServiceLoansPerLoan0.0100.00.00.0100.00.00.0100.0

fcnca:StockRepurchasedDuringPeriodAveragePricePerShare

fcnca:StockRepurchasedDuringPeriodAveragePricePerShare


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0399.82366.98457.0513.49457.5436.81414.58-31.9464.68
Percentage of StockRepurchasedDuringPeriodAveragePricePerShare0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:StockRepurchasedDuringPeriodAveragePricePerShare us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Stock
Period End2020-07-312020-04-302020-02-142019-10-312019-08-022019-04-30
Value399.77333.71527.27472.94455.94432.78
Percentage of StockRepurchasedDuringPeriodAveragePricePerShare0.00.00.00.00.00.0

fcnca:TransferOfPortfolioLoansFromToLoandHeldforsaleNet

fcnca:TransferOfPortfolioLoansFromToLoandHeldforsaleNet


Transfer
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.0225.151-0.437-1.723-1.30444-46.10123-0.605-4.449
Percentage of TransferOfPortfolioLoansFromToLoandHeldforsaleNet0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfMortgageServicingRightsMSRs

us-gaap:AmortizationOfMortgageServicingRightsMSRs


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2077000.02248000.02250000.02208000.02119000.01823000.01638000.01581000.01567000.01447000.01469000.01420000.01432000.01486000.01511000.01417000.01370000.01350000.0980000.01377000.01333000.01268000.01345000.0695000.0-1110000.0-852000.0755000.000-164000.0
Percentage of AmortizationOfMortgageServicingRightsMSRs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0

us-gaap:AvailableForSaleSecuritiesGrossRealizedGainLossNet

us-gaap:AvailableForSaleSecuritiesGrossRealizedGainLossNet


Available
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value159.2072113191.136-0.3711.3373.351-0.0249.1640.352124.628-0.025.5640.1475.126290.00.00.00.00.00.00.0582.2880.0310.003-0.0450.0030.254-0.096-0.4490.0670.94-0.186
Percentage of AvailableForSaleSecuritiesGrossRealizedGainLossNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains


Available
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value159.2072113201.3266.9421.3373.3530.0039.1640.452124.933-0.0165.5640.1515.135290.00.00.00.00.00.00.0582.2880.0310.0050.00.00.3750.00.1560.31.167
Percentage of AvailableForSaleSecuritiesGrossRealizedGains100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.0100.0100.0100.0100.00.00.0100.00.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses


Available
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value14000.000679000.0190000.07313000.002000.027000.00100000.026000.0305000.04000.004000.09000.033000.00000000002000.00-3000.095000.096000.0605000.0224000.01000.0
Percentage of AvailableForSaleSecuritiesGrossRealizedLosses100.00.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.00.00.00.00.00.00.00.00.00.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessCombinationAcquisitionRelatedCosts


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value5.7696.8195.3423.5074.3694.2327.4713.8924.0841.7192.3261.1262.4120.5980.7670.5626.8530.8330.1543.7641.3850.0382.9253.6794.5732.9975.7121.5053.452.4530.3910.0
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:BusinessAcquisition

fcnca:CommunityFinancialHoldingCo.Inc.


Business
Period End2020-12-312020-09-302020-06-302020-03-31
Value1.40.3420.4951.2
Percentage of BusinessCombinationAcquisitionRelatedCosts26.29.811.328.4

us-gaap:ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets

us-gaap:ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets


Contractually
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-31
Value2100000.02100000.02100000.02100000.02100000.02100000.02100000.01900000.02000000.01900000.01900000.01900000.01900000.01900000.01900000.01700000.01900000.01700000.01500000.01500000.01500000.01400000.0-3500000.02800000.04200000.01100000.00
Percentage of ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss


Debt
Period 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
Value159.2075.2812113190.261.1365.7190.00.3510.0
Percentage of DebtSecuritiesAvailableForSaleRealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0

us-gaap:DebtSecuritiesGainLoss

us-gaap:DebtSecuritiesGainLoss


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value159.2075.2812113190.261.1365.7190.00.351
Percentage of DebtSecuritiesGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanName

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

fcnca:BancSharesPlan


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-7018000.0-6529000.0-6332000.0-6398000.0-6264000.0-2099000.0-2084000.0-2114000.0-3397000.0-3398000.0-3548000.0-3246000.0-2214000.0-2214000.0-2193000.0-2234000.0-1715000.0-1714000.0-1830000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanContributionsByEmployer us-gaap:RetirementPlanName

us-gaap:DefinedBenefitPlanContributionsByEmployer

fcnca:BancSharesPlan


Defined
Period End2020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1000.0710.00.00.00.0500.00.0500.00.0
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.00.00.00.00.0100.00.00.0100.00.00.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanName

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

fcnca:BancSharesPlan


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value191916161612121211111111101010109.1629.1559.167
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanName

us-gaap:DefinedBenefitPlanInterestCost

fcnca:BancSharesPlan


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value7.5287.4048.5498.5688.5317.5577.5817.5317.0957.0937.1317.0577.2087.2837.0697.387.2247.2187.269
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanName

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

fcnca:BancSharesPlan


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-1.052-2.0092.0282.2131.843-0.577-0.517-0.641.9391.942.0851.7952.1422.1411.9422.3442.9842.9843.074
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanName

us-gaap:DefinedBenefitPlanServiceCost

fcnca:BancSharesPlan


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value4.0233.6533.573.6823.4572.6282.692.5683.3953.3963.3623.4293.1483.182.9343.3763.1553.1533.09
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DepreciationAmortizationAndAccretionNet


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value26272727262626262228252424232322222222212222222122212217171718161717181716161616161616161415
Percentage of DepreciationAmortizationAndAccretionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementClassOfStock

us-gaap:DividendsCommonStockCash

us-gaap:CommonClassA


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.1414.1424.1413.5243.6063.7393.8554.0814.0084.1734.2653.8173.8523.851
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.4720.4720.4720.4020.4020.4020.4020.4020.4020.4020.4030.3510.3520.352
Percentage of DividendsCommonStockCash11.411.411.411.411.110.810.49.910.09.69.49.29.19.1

us-gaap:DividendsCommonStockCash us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:CommonClassA, us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.1414.1424.1413.5243.6063.7393.8554.0814.0084.1734.2653.8173.8523.851
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB, us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.4720.4720.4720.4020.4020.4020.4020.4020.4020.4020.4030.3510.3520.352
Percentage of DividendsCommonStockCash11.411.411.411.411.110.810.49.910.09.69.49.29.19.1

us-gaap:DividendsPreferredStockCash us-gaap:StatementClassOfStock

us-gaap:DividendsPreferredStockCash

us-gaap:CommonClassB


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302019-09-30
Value4.6364.6364.6364.794.636
Percentage of DividendsPreferredStockCash100.0100.0100.0100.0100.0

us-gaap:DividendsPreferredStockCash us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:CommonClassB, us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302019-09-30
Value4.6364.6364.6364.794.636
Percentage of DividendsPreferredStockCash100.0100.0100.0100.0100.0

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
Value28292929282728282826262525242423242423232222232223232118191819181818201717181717171717171615
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value111618-2.70164-51.4087.12-0.9673.14411-16.8753.8544.440.971
Percentage of EquitySecuritiesFvNiGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1 us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

us-gaap:CorporateDebtSecurities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value92000.02333000.01997000.02818000.02449000.0-4366000.0906000.01147000.01822000.039000.052000.069000.048000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss

us-gaap:CorporateDebtSecurities


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value1340000.0-91000.0-81000.0-83000.0-85000.041000.037000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases

us-gaap:CorporateDebtSecurities


Fair
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value7.06478100248.00.9913.0201151
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

us-gaap:CorporateDebtSecurities


Fair
Period End2021-06-302021-03-312019-03-312018-12-312018-09-302018-06-30
Value1.10.750.00.00.02.405
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales100.0100.00.00.00.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3 us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

us-gaap:CorporateDebtSecurities


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302018-12-312018-09-30
Value0.00.00.01.7820.00.00.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel30.00.00.0100.00.00.00.0

us-gaap:FairValueOptionChangesInFairValueGainLoss1

us-gaap:FairValueOptionChangesInFairValueGainLoss1


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value400000.0-2700000.0-300000.0567000.02400000.01200000.0-461000.0583000.0-82000.0249000.0578000.0-773000.0700000.0-455000.0-656000.0104000.0291000.03161000.0
Percentage of FairValueOptionChangesInFairValueGainLoss1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FederalDepositInsuranceCorporationPremiumExpense

us-gaap:FederalDepositInsuranceCorporationPremiumExpense


Federal
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.3823.2183.3372.1673.7313.4662.8072.442.7572.662.4795.1865.4925.7335.4445.4495.7055.5935.7945.7964.5884.7894.5854.9334.5514.2714.7882.9152.642.6362.382.7062.4232.6662.9172.0162.6663.0572.9652.7682.5018.2255.8295.8426.6094.887
Percentage of FederalDepositInsuranceCorporationPremiumExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value5.5745.8744.8236.3764.7036.7553.1233.2123.467
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value7.5288.5639.8488.93212149.6471010
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsNumberOfContracts2

us-gaap:FinancingReceivableModificationsNumberOfContracts2


Financing
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value121.0129.0145.0146.0172.0142.0115.091.0104.0101.0121.0115.0129.0
Percentage of FinancingReceivableModificationsNumberOfContracts2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2


Financing
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value212325371714175.241111311137.85
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1

us-gaap:FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1


Financing
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value46.069.043.060.059.062.061.050.066.074.067.058.0
Percentage of FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1

us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1


Financing
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value5.5849.416.2373.4514.0365.9013.8083.7664.3545.2914.2713.779
Percentage of FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0001193000.0
Percentage of FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate0.00.00.0100.0

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate us-gaap:BusinessAcquisition

fcnca:CommunityFinancialHoldingCo.Inc.


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0001193000.0
Percentage of FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate0.00.00.0100.0

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancialAssetAcquiredWithCreditDeterioration


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0001193000.0
Percentage of FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate0.00.00.0100.0

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAmountAtParValue us-gaap:BusinessAcquisition

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAmountAtParValue

fcnca:CommunityFinancialHoldingCo.Inc.


Financing
Period End2020-12-31
Value0.0
Percentage of FinancingReceivablePurchasedWithCreditDeteriorationAmountAtParValue0.0

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice us-gaap:BusinessAcquisition

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice

fcnca:CommunityFinancialHoldingCo.Inc.


Financing
Period End2020-12-31
Value0.0
Percentage of FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice0.0

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationDiscountPremium

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationDiscountPremium


Financing
Period End2020-12-31
Value0
Percentage of FinancingReceivablePurchasedWithCreditDeteriorationDiscountPremium0.0

us-gaap:FinancingReceivableSignificantPurchases us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:BusinessAcquisition, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableSignificantPurchases

fcnca:CommercialAndIndustrial, fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:CommercialPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.015
Percentage of FinancingReceivableSignificantPurchases0.00.00.0100.0

fcnca:ConsumerAutoLoan, fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:ConsumerPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.00.294
Percentage of FinancingReceivableSignificantPurchases0.00.00.02.0

fcnca:ConsumerLoanOther, fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:ConsumerPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.00.693
Percentage of FinancingReceivableSignificantPurchases0.00.00.04.6

fcnca:MortgageReceivableNonOwnerOccupied, fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:CommercialPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.025
Percentage of FinancingReceivableSignificantPurchases0.00.00.0166.9

fcnca:MortgageReceivableOwnerOccupied, fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:CommercialPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.031
Percentage of FinancingReceivableSignificantPurchases0.00.00.0208.9

fcnca:RevolvingMortgage, fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:ConsumerPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.02.084
Percentage of FinancingReceivableSignificantPurchases0.00.00.013.8

us-gaap:ConstructionLoans, fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:CommercialPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.09.428
Percentage of FinancingReceivableSignificantPurchases0.00.00.062.6

us-gaap:ConstructionLoans, fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:ConsumerPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.05.254
Percentage of FinancingReceivableSignificantPurchases0.00.00.034.9

us-gaap:ResidentialMortgage, fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:ConsumerPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.021
Percentage of FinancingReceivableSignificantPurchases0.00.00.0140.5

us-gaap:FinancingReceivableSignificantPurchases us-gaap:BusinessAcquisition

fcnca:CommunityFinancialHoldingCo.Inc.


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.0110
Percentage of FinancingReceivableSignificantPurchases0.00.00.0734.2

us-gaap:FinancingReceivableSignificantPurchases us-gaap:BusinessAcquisition, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:CommercialPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.081
Percentage of FinancingReceivableSignificantPurchases0.00.00.0538.4

fcnca:CommunityFinancialHoldingCo.Inc., us-gaap:ConsumerPortfolioSegment


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.029
Percentage of FinancingReceivableSignificantPurchases0.00.00.0195.8

us-gaap:ForeclosedRealEstateExpense

us-gaap:ForeclosedRealEstateExpense


Foreclosed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.1732.1983.4872.1683.9494.0542.2693.0443.6593.0224.1784.2693.9744.1464.8253.4430.582.4711.8592.016-1.1161.731-2.0011.0871.0192.5573.5814.8383.8585.415.0754.2873.4674.305118.667154.62122143.7475.48813-1.2714.0144.061
Percentage of ForeclosedRealEstateExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSalesOfLoansNet

us-gaap:GainLossOnSalesOfLoansNet


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value109.36511109.8965.6824.5764.2123.9152.1812.573.032.9442.6663.5265.0382.8233.4564.9384.9753.3952.4875.7722.0880.5233.4681.6371.1141.1661.0541.2872.3283.5633.563.4321.175-0.5543.4122.5119.66-1.209-2.211-14.9429.455-2.0-1.371
Percentage of GainLossOnSalesOfLoansNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainsLossesOnSalesOfOtherRealEstate

us-gaap:GainsLossesOnSalesOfOtherRealEstate


Gains
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1482000.0527000.0-1696000.0115000.0-1056000.0-1419000.0-740000.0-507000.0-990000.0-427000.0-1234000.0-458000.0-1488000.0-1210000.0-1308000.0-992000.0-443000.0-1717000.0-950000.0-1367000.0-1285000.0-2599000.02187000.0-1167000.0-1210000.0-1978000.0-4505000.0-2777000.0-3552000.0-3441000.0-2112000.0-3094000.0-130000.0-1350000.0-34472000.0-1304000.01042000.0-1495000.0-49040000.0-3061000.0725000.0-2074000.01656000.0-285000.02089000.0-2809000.0
Percentage of GainsLossesOnSalesOfOtherRealEstate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-831.7872632-51.00.2931113-9.607-61.7243744-4.657-49.73733-27.731-0.289-10.05827-7.474-11.149-41.435356.718-0.934-38.5711396-30.689-34.73740-41.436-17.088-52.274316.044-3.1963.3922-55.7933-10.68130-27.692-11.639-10.524
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDemandDeposits

us-gaap:IncreaseDecreaseInDemandDeposits


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11874058143290766311017453-60.595374387-39.303-208.41-90.1257951.036108-397.325827506360-39.004460427253380545294-67.265-38.758308-19.923184148174485319264488670293100-1060.414311366-57.28712
Percentage of IncreaseDecreaseInDemandDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInInterestAndDividendsReceivable

us-gaap:IncreaseDecreaseInInterestAndDividendsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-14.9792.328-6.043-23.759491.9140.5841.82-2.1623.9093.1356.0490.2431.3584.4284.181-0.3270.6174.9061.027-1.613.4822.6680.6393.5645.911-6.523-0.508-0.6491.2782.280.543-1.688-0.411-3.8991.822-2.66310-1.67-84.79647-9.582-30.1623-3.818-5.024
Percentage of IncreaseDecreaseInInterestAndDividendsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInInterestPayableNet

us-gaap:IncreaseDecreaseInInterestPayableNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.661-4.264-1.063-3.6080.612-4.6240.2653.6627.0283.4571.3120.4910.411-2.454-0.246-0.9431.1940.15-0.254-2.2860.30.324-0.2370.115-2.5350.1762.891-1.9941.622-1.0620.686-3.1572.555-2.7-1.792-11.9481.607-2.2330.511-9.0963.319-9.0743.471-7.1197.532-4.761
Percentage of IncreaseDecreaseInInterestPayableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1.505-17.5350.892-11.06521-4.06729-14.54544-31.07234-28.65431-342.31237-24.774191544-43.0446.2461942-14.9825.137-19.38373.623238.2063.783-39.17-75.5676.98730.25-32.616-23.56433-27.22946-143.34158-32.4826.501-41.963
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value10-33.4941.3576.90813-28.135-7.1689.95729-51.98512-68.70627-12.642-39.72-19.469208.741-81.79536153.857-22.6191125-0.336-26.008-7.706322.1860.55832-8.31632181.24-2.4116.487-2.0888.5326.357-14.193-19.944-1.716-3.40546
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPensionPlanObligations

us-gaap:IncreaseDecreaseInPensionPlanObligations


Increase
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value00-100000000.0-3500000.000
Percentage of IncreaseDecreaseInPensionPlanObligations0.00.0100.0100.00.00.0

us-gaap:IncreaseDecreaseInTimeDeposits

us-gaap:IncreaseDecreaseInTimeDeposits


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-107.724-159.035-250.699-135.658-313.609-310.224-91.98584153138251-36.937-89.825-92.064-68.71-230.789-131.412-107.339-270.38414-165.349-84.802-185.613-46.035-169.219-189.906-198.02-82.552-168.029-51.268-169.33-139.346-194.948-195.381-292.963-227.979-222.481-306.338-755.818-900.181-249.445-367.974-419.332-410.5390.69485
Percentage of IncreaseDecreaseInTimeDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndDividendIncomeOperating


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
Value361355376374363369354362350336333315303292285284272260254246243243241249246231232177177173189192193220280236240246272252245245272278217200
Percentage of InterestAndDividendIncomeOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndDividendIncomeSecurities

us-gaap:InterestAndDividendIncomeSecurities


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
Value353031373639404040393938373531293029252324232324211919121211109.6968.1198.4849.5959.4358.1658.3029.77811111311131413
Percentage of InterestAndDividendIncomeSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseDeposits


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
Value8.5428.79311131724222119129.0595.1474.5213.7563.7893.8394.1324.4364.4524.4574.6014.6594.8515.2165.5345.6296.2525.7036.0066.8257.2627.9238.99710121315162024272932374138
Percentage of InterestExpenseDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm

us-gaap:InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.0992.0872.1512.1562.4722.9841.2851.3161.5861.285
Percentage of InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther

us-gaap:InterestExpenseOther


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value254000.0265000.0287000.0305000.0399000.0784000.01026000.0524000.0162000.0110000.0
Percentage of InterestExpenseOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase

us-gaap:InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value356000.0338000.0374000.0395000.0399000.0442000.0479000.0542000.0515000.0459000.0
Percentage of InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseSubordinatedNotesAndDebentures

us-gaap:InterestExpenseSubordinatedNotesAndDebentures


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.1814.1884.2914.3514.6772.7551.7011.7741.9521.6721.6221.5611.6531.441
Percentage of InterestExpenseSubordinatedNotesAndDebentures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeDepositsWithFinancialInstitutions

us-gaap:InterestIncomeDepositsWithFinancialInstitutions


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
Value2.1051.4481.0190.7570.5534.5185.4257.1517.2796.3976.0654.7215.6125.5997.5998.3676.4044.4763.8583.7853.2253.6662.031.1741.5251.3381.6890.6550.7560.6120.9730.7370.6560.3570.5080.4270.490.3130.3380.3510.3160.3890.7550.5720.5460.474
Percentage of InterestIncomeDepositsWithFinancialInstitutions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss


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
Value365350353349316310319329322308309306287276277265249242227228227227223239226214208164172162169186192223198197185190153172153159193170133134
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaid

us-gaap:InterestPaid


Interest
Period End2021-06-302021-03-312020-06-302020-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1119253511139.9911312161118193323282844345040554554
Percentage of InterestPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MarketableSecuritiesGainLoss

us-gaap:MarketableSecuritiesGainLoss


Marketable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value111618-2.70164-51.4087.12-0.9673.14411-16.8753.8544.440.9710.00.00.00.0
Percentage of MarketableSecuritiesGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:MarketableSecuritiesRealizedGainLoss

us-gaap:MarketableSecuritiesRealizedGainLoss


Marketable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.2634.6662.568360.323130.7142.2710.0440.0090.9460.1390.096
Percentage of MarketableSecuritiesRealizedGainLoss0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MarketableSecuritiesUnrealizedGainLoss

us-gaap:MarketableSecuritiesUnrealizedGainLoss


Marketable
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1115-5.26927-51.731-1.6810.873112.9084.3010.875
Percentage of MarketableSecuritiesUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestExpense

us-gaap:NoninterestExpense


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value301295305291291299292270273267275267265268294286285264271267258251255260264258254201199191196192188194198190194183211203187190201176181172
Percentage of NoninterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestIncome

us-gaap:NoninterestIncome


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value13413612612016564104100106103829410012214012524812712411714010599109107145136776561697164573351574610416366131514992211
Percentage of NoninterestIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestIncomeOther

us-gaap:NoninterestIncomeOther


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.8641.862.1162.0082.6970.6253.3026.1765.0343.919102.5386.0018.642238.9578.0657.11512105.995.421115.542118.51125.7376.654.6087.074215.78911-0.593-4.7982.2521.90810110.3170.916.6690.748-0.1250.139
Percentage of NoninterestIncomeOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OccupancyNet

us-gaap:OccupancyNet


Occupancy
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value28293227292728282627282626272726262427242425242225252520202019181818191818181918181818181817
Percentage of OccupancyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value18-43.506-21.3147.53211111.2873.026232129-10.63563-60.546-23.5839.8958.64622-70.327-0.7221442-31.76617-17.87418-22.264-7.0197.256-8.2672.293-23.723-0.911-3.9878.834
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value18-43.506257.5321111413.02623215.247-10.635
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0-120.1100.0100.0100.03238.8100.0100.0100.017.6100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-7.018-6.529-6.332-6.398-6.264-2.746-2.745-2.735-2.755
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-30
Value159.2075.2812113190.261.1365.7190.00.3510.00.00.0-0.3711.3373.351-0.0249.1640.352124.628-0.025.5640.1475.126-29.0960.00.00.00.00.02.2880.031
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value159.2075.2812113190.261.1365.719
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value127.0894.0671610150.2010.8744.404
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-30
Value3.6412.1181.2144.9283.1634.5530.0590.2621.3150.00.0810.00.00.0-0.1380.4951.24-0.0093.2860.1914.7931.77-0.0072.0940.0741.977-11.2240.00.00.00.00.00.9040.012
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value3.6412.1181.2144.9283.1634.5530.0590.2621.315
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value7.0186.5296.336.3326.3986.2642.7462.7452.7352.755-1.652-2.897-2.916-2.887-2.886-1.339-0.822-1.598-1.599-4.299-4.298-4.294-4.304-2.868-2.788
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value5.4045.0274.8754.9264.8232.1142.1062.1212.6912.8142.5691.4661.5631.5591.1261.1631.021.8381.764
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.4045.0274.8764.8754.9264.8232.1152.1142.1062.121
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax100.0100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value1614000.01502000.01457000.01472000.01441000.0631000.0631000.0629000.0634000.0804000.0804000.0840000.0768000.0894000.0864000.0897000.0941000.0623000.0642000.0719000.0632000.01664000.01078000.01123000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1614000.01502000.01454000.01457000.01472000.01441000.0631000.0631000.0629000.0634000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value24-56.501-27.6819.781281441.673.932302838-13.8182-78.634-37.453151336-112.161-1.5772468-51.4528-29.22630-36.127-11.4443111-13.4433.47-38.992-1.418-6.81144.491-2.898-2.236-2.75317-9.139
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.751-50.595-25.381-8.96711961.0862.152192129-10.63563-60.546-23.359.0536.53522-76.205-0.8837.17939-31.75314-17.94715-4.392-7.0197.256-8.2672.293-23.723-0.911-5.3718.8152.733-1.775-1.177-1.82110-5.692-11.764-0.9964.9131.65
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.658-12.995-6.3672.2516.455330.3830.9067.1236.4568.93-3.17519-18.088-13.875.8575.12513-41.834-0.8559.26126-19.68410-11.35211-13.863-4.444124.643-5.1761.177-15.269-0.542-2.8235.9491.756-1.123-0.956-1.0646.6153.447-6.413-0.621.4351.173
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherLaborRelatedExpenses

us-gaap:OtherLaborRelatedExpenses


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value35353131303829283032272829322927272924262527262727302019192020212325191820201717181916141518
Percentage of OtherLaborRelatedExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoninterestExpense

us-gaap:OtherNoninterestExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value312636353438403034331841434350504942-15.068727666696967626651494349494648464743425355504554474539
Percentage of OtherNoninterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherRealEstateAdditions

us-gaap:OtherRealEstateAdditions


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value4.2347.1068.3949.2443.1975.9876.2587.5324.7613.1337.9845.1455.2866.5828.0545.035165.8223.75510119.9810139.06321121720161321193823365326
Percentage of OtherRealEstateAdditions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherRealEstateAdditions us-gaap:BusinessAcquisition

fcnca:A2019Acquisitions


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.00.00.09.8131.8460.0
Percentage of OtherRealEstateAdditions0.00.00.0163.929.50.0

us-gaap:OtherRealEstateDisposals

us-gaap:OtherRealEstateDisposals


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value8.4988.1028.0819.1484.1765.3216.8376.5834.0786.9344.647.7197.3898.389.7139.265109.1199.9958.6747.4398.0712162422361327102533413332277225
Percentage of OtherRealEstateDisposals100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherRealEstateValuationAdjustments

us-gaap:OtherRealEstateValuationAdjustments


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.5631.3822.2121.1570.8781.3630.9290.9321.3660.9231.2340.4581.4881.211.2322.5631.5651.4431.4931.0891.6542.7312.9680.3571.0642.2292.1066.2754.0143.6773.9103.7133.836.241144.4219.95
Percentage of OtherRealEstateValuationAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForOriginationAndPurchasesOfLoansHeldForSale

us-gaap:PaymentsForOriginationAndPurchasesOfLoansHeldForSale


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value31531530227229720521719019912813715117313115017216413420622721614414218722912617974556770100105117160140139135179516-94.465-87.719-1025.648675-140.521-114.974
Percentage of PaymentsForOriginationAndPurchasesOfLoansHeldForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsForProceedsFromLoansAndLeases


Payments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3873286202653461236-68.0523213413537.283442309357105431365284131383361398168484272524.78841-39.859-55.629-269.428-35.791-123.512-190.784-277.719-162.383-50.73-141.676-119.185-399.742-215.258-110.742-200.38
Percentage of PaymentsForProceedsFromLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-31
Value6.0448.009
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0

us-gaap:PaymentsToAcquireAvailableForSaleSecurities

us-gaap:PaymentsToAcquireAvailableForSaleSecurities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value121817371070194813534305998215395959347159545374175670531587117044158261139580452809626519589498911731564638736927132712321681121916284901411656932931672
Percentage of PaymentsToAcquireAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value0.00.0581.2351620.0730.0480.01060.0-4.1170.0-275.057-25.6460.028-13.198-14.7450.00.00.0-123.137-164.1760.00.0-18.1940.00.00.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired0.00.0100.0100.0100.00.0100.00.0100.00.0100.00.0100.00.0100.0100.00.0100.0100.0100.00.00.00.0100.0100.00.00.0100.00.00.00.0

us-gaap:PaymentsToAcquireHeldToMaturitySecurities

us-gaap:PaymentsToAcquireHeldToMaturitySecurities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312011-03-312010-03-31
Value80420777752787240.245406711629680.00.00.00.0-0.001
Percentage of PaymentsToAcquireHeldToMaturitySecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0

us-gaap:PaymentsToAcquireMarketableSecurities

us-gaap:PaymentsToAcquireMarketableSecurities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.3060.0141.174442872.9289.138.0326.0760.00.00.5462.2720.00.00.00.0
Percentage of PaymentsToAcquireMarketableSecurities0.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.00.00.0

us-gaap:PreferredStockDividendsAndOtherAdjustments

us-gaap:PreferredStockDividendsAndOtherAdjustments


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value4.6364.6364.6364.6364.790.00.00.0
Percentage of PreferredStockDividendsAndOtherAdjustments100.0100.0100.0100.0100.00.00.00.0

us-gaap:ProceedsFromDebtNetOfIssuanceCosts

us-gaap:ProceedsFromDebtNetOfIssuanceCosts


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.0-0.001-0.0363450.00.0
Percentage of ProceedsFromDebtNetOfIssuanceCosts0.0100.0100.0100.00.00.0

us-gaap:ProceedsFromIssuanceOfPreferredStockAndPreferenceStock

us-gaap:ProceedsFromIssuanceOfPreferredStockAndPreferenceStock


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value-5.0630.00.03450.00.0
Percentage of ProceedsFromIssuanceOfPreferredStockAndPreferenceStock100.00.00.0100.00.00.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities


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
Value49110798817705665726556284745876181482945034062953537879355852313963393814273304894636628664865866906746939641053127511541633692522905888536261
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities


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
Value2072061667742143511410288100117780.0020.0020.0020.0030.0150.0270.0310.0380.0610.0460.050.090.0770.0890.0860.0890.1250.1060.1170.0990.1130.1170.1190.110.1340.1210.1550.2420.1910.1130.4380.240.278
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.01.11120193102.438442.045100.1190.0251.017.8290.6640.00.00.00.0
Percentage of ProceedsFromSaleAndMaturityOfMarketableSecurities0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities


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
Value726351695766-34.534315656211356100.02400.01190.0807205031427431383987249514404814220.00.00.00.00.0-1.5821.5827.8440.00.0560.00.0500.01910.112140.024
Percentage of ProceedsFromSaleOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0100.0100.00.0100.00.00.0100.00.0100.0100.0100.00.0100.0

us-gaap:ProceedsFromSaleOfLoansHeldForSale

us-gaap:ProceedsFromSaleOfLoansHeldForSale


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
Value2832793022692722012411632031231391651641381731771461622332212021401602022111271928259646712213212115513913515816713287130178178110124
Percentage of ProceedsFromSaleOfLoansHeldForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfOtherRealEstateHeldforinvestment

us-gaap:ProceedsFromSaleOfOtherRealEstateHeldforinvestment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value10108.597103.9985.2657.0267.0084.4547.434.647.7197.3898.389.63710118.8458.3967.8088.2021624221727104043363335542378326.68118198-95.9047.03133
Percentage of ProceedsFromSaleOfOtherRealEstateHeldforinvestment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value33000.01143000.01323000.09000.037000.004000.053000.021000.054000.073000.01450000.0185000.013000.0141000.0615000.0100000.02205000.00000
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ProvisionForLoanAndLeaseLosses

us-gaap:ProvisionForLoanAndLeaseLosses


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-19.603-10.9745.4034.04220287.7276.7665.19811110.848.4387.605-2.8097.946128.231167.5074.5624.8437.0460.1077.7195.7928.3051.537-7.299-1.9037.276-7.683-13.242-18.606641729308944534434593116
Percentage of ProvisionForLoanAndLeaseLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLeaseAndOtherLosses

us-gaap:ProvisionForLoanLeaseAndOtherLosses


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-19.603-10.9745.4034.04220286.7665.19811
Percentage of ProvisionForLoanLeaseAndOtherLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value7.3892.428-0.428115.66310-3.366-5.933-2.281-6.712-7.141-7.698-6.259-2.569-1.769-0.6240.548-1.5744.734-0.9656.5731.838-1.2461.632-1.6911.386-18.69-0.503-0.976-0.977-3.537-2.668-2.612-2.619-0.846-2.142
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity


Reclassification
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.6040.3660.00.0-1.452-4.693-4.579-4.591-4.72-5.007-3.4450.00.00.00.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax8.215.10.00.043.179.1200.768.466.165.055.0-0.0-0.0-0.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-5.404-5.027-4.876-4.875-4.926-4.823-2.115-2.114-2.106-2.121-2.691-2.691-2.814-2.569-1.536-1.466-1.563-1.559-1.144-1.126-1.163-1.02-1.233-1.838-1.764-1.763-0.818-0.503-0.976-0.977-3.038-2.237-2.612-2.619-1.745-1.696
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax-73.1-207.01139.3-41.9-87.0-46.362.835.692.331.637.735.045.0100.086.8234.9-285.299.0-24.2116.7-17.7-55.599.0-112.6104.3-127.24.4100.0100.0100.085.983.8100.0100.0206.379.2

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value127.0894.0671610150.2010.8744.4040.00.270.00.00.0-0.2330.8422.111-0.0155.8780.1617.7362.858-0.0133.470.0733.149-17.8720.00.00.00.00.00.00.01.3840.019
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax165.0292.0-950.2141.9187.0146.3-6.0-14.7-193.1-0.0-3.8-0.0-0.0-0.013.2-134.9385.21.0124.2-16.7117.7155.51.0212.6-4.3227.295.6-0.0-0.0-0.0-0.0-0.0-0.0-0.0-163.6-0.9

us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period 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
Value7.3892.428-0.428115.66310-3.366-5.933-2.281-6.712-7.141-7.698
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfOtherLongTermDebt

us-gaap:RepaymentsOfOtherLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.974173.996.83937382910248.688
Percentage of RepaymentsOfOtherLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SalariesWagesAndOfficersCompensation

us-gaap:SalariesWagesAndOfficersCompensation


Salaries
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value15314715014714614514413713613213413312912912312111811211210710410310510811010610681827980767576787676
Percentage of SalariesWagesAndOfficersCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ServicingAssetAtAmortizedValueAdditions

us-gaap:ServicingAssetAtAmortizedValueAdditions


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value3101000.03444000.02333000.01994000.02096000.01583000.02206000.01532000.01552000.0859000.01232000.01396000.01430000.01200000.01453000.02896000.01123000.01702000.01680000.01923000.01351000.0977000.01464000.01857000.01927000.0662000.0727000.0000
Percentage of ServicingAssetAtAmortizedValueAdditions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate

fcnca:AllLoansandLeasesExcludingConventionalFixedLoans


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-0.279.740.248.5934-0.00010.08670.0102-0.0034-0.0040.1041-0.0037490.0020.00120.10740.00080.0003-0.00090.10390.008550.00125-0.0030.09770.0126-0.0030.0040.0895
Percentage of ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FixedRateResidentialMortgage


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-0.278.740.247.6034-0.00010.07670.0102-0.0034-0.0040.0941-0.0037490.0020.00120.09740.00080.0003-0.00090.09390.008550.00125-0.0030.08770.0226-0.0030.0040.0695
Percentage of ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate100.089.7100.088.5100.088.5100.0100.0100.090.4100.0100.0100.090.7100.0100.0100.090.4100.0100.0100.089.8179.4100.0100.077.7

us-gaap:ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed

us-gaap:ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.0316.54-0.1820.5980.00810.1938-0.04890.00760.02110.11280.0088-0.0005-0.00720.0915-0.00460.00980.00590.0982-0.04410.00040.01470.13320.006-0.0283-0.02830.1607
Percentage of ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:StockIssuedDuringPeriodSharesNewIssues


Stock
Period End2020-09-302020-06-302020-03-31
Value0.0-0.021339
Percentage of StockIssuedDuringPeriodSharesNewIssues0.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues us-gaap:StatementEquityComponents

us-gaap:PreferredStock


Stock
Period End2020-09-302020-06-302020-03-31
Value0.0-0.0210.003
Percentage of StockIssuedDuringPeriodSharesNewIssues0.0100.00.0

us-gaap:StockRepurchasedDuringPeriodShares us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:CommonClassA, us-gaap:SubsequentEvent


Stock
Period End2020-07-312020-04-302020-02-142018-10-31
Value117700.0111700.0120990.075000.0
Percentage of StockRepurchasedDuringPeriodShares100.0100.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:StockRepurchasedDuringPeriodValue


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302013-09-302013-06-302013-03-312012-06-302012-03-31
Value0.0454712615912413589100107580.00.00.3210.8411.573
Percentage of StockRepurchasedDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:CommonClassA, us-gaap:CommonStock


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.00.1180.3460.3490.2550.2960.2050.2430.2570.1250.00.00.00.0020.0410.0150.00.00.025
Percentage of StockRepurchasedDuringPeriodValue0.00.30.30.20.20.20.20.20.20.20.00.00.00.60.00.00.00.00.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312013-06-302013-03-312012-06-302012-03-31
Value0.00.044135891000.00.00.00.0
Percentage of StockRepurchasedDuringPeriodValue0.00.027.699.899.799.80.00.00.00.0

us-gaap:RetainedEarnings


Stock
Period End2020-09-302020-06-302020-03-312018-09-302013-09-302013-06-302013-03-312012-06-302012-03-31
Value461261150.00.00.00.3190.8371.564
Percentage of StockRepurchasedDuringPeriodValue99.799.772.20.00.00.099.499.599.4

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Stock
Period End2020-07-312020-04-302020-02-142019-10-312019-08-022019-04-30
Value473763693127
Percentage of StockRepurchasedDuringPeriodValue0.00.00.00.00.00.0

us-gaap:TransferToOtherRealEstate

us-gaap:TransferToOtherRealEstate


Transfer
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.4172.3741.343.1572.5784.56120.01.6640.521.6220.00.00.0
Percentage of TransferToOtherRealEstate100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.00.0

us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries

us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries


Valuation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1784000.0-3123000.0-8484000.0305000.01069000.02967000.0-49000.0-45000.033000.0161000.000000004000.01985000.0360000.0-380000.0-1874000.0-95000.03000.0909000.0-62000.0-850000.0000
Percentage of ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

dei:EntityCommonStockSharesOutstanding us-gaap:StatementClassOfStock

dei:EntityCommonStockSharesOutstanding

us-gaap:CommonClassA


Entity
Period End2021-02-222020-07-312020-04-302020-02-142019-10-312019-08-052019-05-062019-02-192018-10-312018-08-012018-05-032018-02-202017-11-012017-08-022017-05-032017-02-212016-10-282016-08-032016-05-042016-02-242015-11-032015-08-042015-05-062015-02-252014-09-302014-08-082014-05-072014-02-262013-11-072013-08-072013-05-092013-03-012012-11-092012-08-092012-05-102012-02-292011-09-30
Value8.811228.811229.163229.503329.73272101010101111111111111111111111111111118.5860588.5860588.5860588.5860588.5860588.5860588.5860588.5860588.6220228.6390168.6443078.6443078.669439
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonClassB


Entity
Period End2021-02-222020-07-312020-04-302020-02-142019-10-312019-08-052019-05-062019-02-192018-10-312018-08-012018-05-032018-02-202017-11-012017-08-022017-05-032017-02-212016-10-282016-08-032016-05-042016-02-242015-11-032015-08-042015-05-062015-02-252014-09-302014-08-082014-05-072014-02-262013-11-072013-08-072013-05-092013-03-012012-11-092012-08-092012-05-102012-02-292011-09-30
Value1.0051851.0051851.0058151.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0051851.0328831.0328831.0328831.0328831.0328831.0328831.0328831.0328831.6269371.6269371.6269371.6398121.639812
Percentage of EntityCommonStockSharesOutstanding11.411.411.010.610.39.99.79.69.39.19.19.19.19.19.19.19.19.19.19.19.19.19.19.112.012.012.012.012.012.012.012.018.918.818.819.018.9

fcnca:AccumulatedOtherComprehensiveIncomeLossTax

fcnca:AccumulatedOtherComprehensiveIncomeLossTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-06-302012-03-31
Value-6.607-10.0573.663-4.108-2.888-7.652-37.853-51.308-53.985-61.79-70.251-73.951-73.075-68.799-71.539-53.912-60.138-64.92-79.289-9.715-9.31-14.772-39.912-22.536-32.557-22.528-33.709-1.3152.442-10.623-16.166-60.991-64.415-51.375-52.817-40.134-42.707
Percentage of AccumulatedOtherComprehensiveIncomeLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:AccumulatedOtherComprehensiveIncomeLossTax us-gaap:StatementEquityComponents

fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity


Accumulated
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value0.9521.1331.2420.0-17.111-18.513-19.881-21.252-22.663-24.1580.0
Percentage of AccumulatedOtherComprehensiveIncomeLossTax-14.4-11.333.9-0.033.334.332.230.330.633.1-0.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-17.987-19.601-21.103-35.213-36.67-38.142-39.583-35.603-36.234-36.863-37.497-30.938-31.742-32.582-53.65-49.755-50.619-51.516-52.457-28.003-28.645-29.364-29.996-31.957-33.035-34.158-35.281-5.276-5.595-6.217-6.839-56.575-58.636-60.318-62.003-45.773-46.865-47.957-49.049-26.923-27.568-28.859-28.859-26.583
Percentage of AccumulatedOtherComprehensiveIncomeLossTax272.2194.9-576.1857.21269.7498.5104.669.467.159.753.441.843.447.475.092.384.279.466.2288.2307.7198.875.2141.8101.5151.6104.7401.2-229.158.542.392.891.0117.4117.40.0116.8112.30.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value108.411233133301.731.4060.762-5.046-11.502-20.35-17.175-36.217-17.889-4.157-9.519-13.404-26.832181914-9.379101.655133.2455.88410-1.898-6.541-1.365-2.542121317119.3271011125.2239.14315
Percentage of AccumulatedOtherComprehensiveIncomeLossTax-157.8-83.6642.2-757.2-1169.7-398.5-4.6-2.7-1.48.216.427.523.552.625.07.715.820.633.8-188.2-207.7-100.623.5-45.7-5.1-58.1-9.6-447.5422.917.940.52.23.9-24.8-25.20.0-27.6-21.80.00.00.00.00.00.0

fcnca:AffordableHousingProgramInvestment us-gaap:GuaranteeObligationsByNature

fcnca:AffordableHousingProgramInvestment

us-gaap:StandbyLettersOfCredit


Affordable
Period End2021-06-302020-12-31
Value167163
Percentage of AffordableHousingProgramInvestment100.0100.0

fcnca:AggregateUnpaidPrincipalBalanceOfItemsForWhichFairValueOptionWasElectedAssets us-gaap:FinancialInstrument

fcnca:AggregateUnpaidPrincipalBalanceOfItemsForWhichFairValueOptionWasElectedAssets

fcnca:LoansHeldForSale


Aggregate
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value1041261181141027265815151444557454968684875938258
Percentage of AggregateUnpaidPrincipalBalanceOfItemsForWhichFairValueOptionWasElectedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:BusinessCombinationMeasurementPeriodAdjustmentAmount us-gaap:BusinessAcquisition

fcnca:BusinessCombinationMeasurementPeriodAdjustmentAmount

fcnca:EntegraFinancial


Business
Period End2020-12-31
Value214000.0
Percentage of BusinessCombinationMeasurementPeriodAdjustmentAmount100.0

fcnca:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits us-gaap:BusinessAcquisition

fcnca:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits

fcnca:EntegraFinancial


Business
Period End2020-12-312019-12-312019-09-302019-06-302018-12-31
Value13301330128012501300
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits100.0100.0100.0100.0100.0

fcnca:CapitalConservationBuffer

fcnca:CapitalConservationBuffer


Capital
Period End2020-12-312019-12-312018-12-312018-01-012017-12-312016-12-312016-01-01
Value2.50.0250.01880.018750.01250.0250.00625
Percentage of CapitalConservationBuffer100.0100.0100.0100.0100.0100.0100.0

fcnca:CapitalrequiredforcommonequityTier1capitaltoriskweightedassets

fcnca:CapitalrequiredforcommonequityTier1capitaltoriskweightedassets


Capitalrequiredforcommonequity
Period End2020-12-31
Value4.5
Percentage of CapitalrequiredforcommonequityTier1capitaltoriskweightedassets100.0

fcnca:CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesPurchaseDiscountRemaining

fcnca:CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesPurchaseDiscountRemaining


Certain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312015-12-312014-12-31
Value1923252830323530334161
Percentage of CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesPurchaseDiscountRemaining100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesPurchaseDiscountRemaining fcnca:LoanDesignation

fcnca:NonPCILoans


Certain
Period End2021-06-302021-03-312020-12-31
Value141719
Percentage of CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesPurchaseDiscountRemaining0.00.099.9

fcnca:CommonequityTier1requiredtobewellcapitalizedtoriskweightedassets dei:LegalEntity

fcnca:CommonequityTier1requiredtobewellcapitalizedtoriskweightedassets

fcnca:BancShares


Commonequity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value8.00.0650.0650.0650.0650.065
Percentage of CommonequityTier1requiredtobewellcapitalizedtoriskweightedassets100.0100.0100.0100.0100.0100.0

fcnca:FCB


Commonequity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value8.00.0650.0650.0650.0650.065
Percentage of CommonequityTier1requiredtobewellcapitalizedtoriskweightedassets100.0100.0100.0100.0100.0100.0

fcnca:ConcentrationofRiskLoanReceivablesIndustry us-gaap:ConcentrationRiskByType

fcnca:ConcentrationofRiskLoanReceivablesIndustry

fcnca:MedicalandDental


Concentrationof
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value554051604980486046604280
Percentage of ConcentrationofRiskLoanReceivablesIndustry100.0100.0100.0100.0100.0100.0

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecurities

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecurities


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1087610188994498749524885771737239676269546851
Percentage of DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value113109141160179160481171108042
Percentage of DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesAccumulatedGrossUnrealizedLossbeforeTax

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesAccumulatedGrossUnrealizedLossbeforeTax


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value518310191844189.8219.263157
Percentage of DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesAccumulatedGrossUnrealizedLossbeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesCost

fcnca:DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesCost


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1081410162981397329363874171427132666169066865
Percentage of DebtSecuritiesAvailableforsaleHeldtomaturityandEquitySecuritiesCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:DeferredTaxAssetsOperatingLeaseLiabilities

fcnca:DeferredTaxAssetsOperatingLeaseLiabilities


Deferred
Period End2020-12-312019-12-31
Value1517
Percentage of DeferredTaxAssetsOperatingLeaseLiabilities100.0100.0

fcnca:DeferredTaxAssetsTaxDeferredExpenseExecutiveSeparationFromServiceAgreements

fcnca:DeferredTaxAssetsTaxDeferredExpenseExecutiveSeparationFromServiceAgreements


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
Value8.989127.9278.548149.856239.9410109.017
Percentage of DeferredTaxAssetsTaxDeferredExpenseExecutiveSeparationFromServiceAgreements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:DeferredTaxLiabilitiesDefinedBenefitPlanPensionLiability

fcnca:DeferredTaxLiabilitiesDefinedBenefitPlanPensionLiability


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value445.0796.2870.0
Percentage of DeferredTaxLiabilitiesDefinedBenefitPlanPensionLiability100.0100.0100.00.0

fcnca:DeferredTaxLiabilitiesGainOnFDICAssistedTransactions

fcnca:DeferredTaxLiabilitiesGainOnFDICAssistedTransactions


Deferred
Period End2020-12-312018-12-312017-12-312016-12-312013-12-312012-12-31
Value2.3930.01.1130.05729
Percentage of DeferredTaxLiabilitiesGainOnFDICAssistedTransactions100.00.0100.00.0100.0100.0

fcnca:DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets

fcnca:DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets


Deferred
Period End2020-12-312019-12-31
Value1517
Percentage of DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets100.0100.0

fcnca:DeferredTaxLiabilityMarktoMarketSection475Amount

fcnca:DeferredTaxLiabilityMarktoMarketSection475Amount


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value2.0515.7674.5577.0182231340.0
Percentage of DeferredTaxLiabilityMarktoMarketSection475Amount100.0100.0100.0100.0100.0100.0100.00.0

fcnca:DefinedBenefitPlanPresentValueOfAccruedLiability us-gaap:TitleOfIndividual

fcnca:DefinedBenefitPlanPresentValueOfAccruedLiability

fcnca:ExecutivesDirectorsAndOfficerOfAcquiredEntities


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value42453437383935232525
Percentage of DefinedBenefitPlanPresentValueOfAccruedLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:EquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax

fcnca:EquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax


Equity
Period End2021-06-302020-12-31
Value348.654
Percentage of EquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax100.0100.0

fcnca:EquitySecuritiesFVNIAccumulatedGrossUnrealizedLossBeforeTax

fcnca:EquitySecuritiesFVNIAccumulatedGrossUnrealizedLossBeforeTax


Equity
Period End2021-06-302020-12-31
Value172000.01811000.0
Percentage of EquitySecuritiesFVNIAccumulatedGrossUnrealizedLossBeforeTax100.0100.0

fcnca:FairValueOfItemsForWhichFairValueOptionWasElectedAssets us-gaap:FinancialInstrument

fcnca:FairValueOfItemsForWhichFairValueOptionWasElectedAssets

fcnca:LoansHeldForSale


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value1071291241201077667835253454658465170704974958459
Percentage of FairValueOfItemsForWhichFairValueOptionWasElectedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:FairValueOptionAggregateDifferenceAssets us-gaap:FinancialInstrument

fcnca:FairValueOptionAggregateDifferenceAssets

fcnca:LoansHeldForSale


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value3601000.03221000.05935000.06205000.05692000.03464000.02172000.02183000.01600000.01682000.01432000.0861000.01627000.0928000.01383000.02064000.01720000.01669000.0-1492000.02463000.02515000.0876000.0
Percentage of FairValueOptionAggregateDifferenceAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:FederalHomeLoanBankAndFederalReserveBankAmountOfAvailableUnusedFunds

fcnca:FederalHomeLoanBankAndFederalReserveBankAmountOfAvailableUnusedFunds


Federal
Period End2020-12-31
Value11310
Percentage of FederalHomeLoanBankAndFederalReserveBankAmountOfAvailableUnusedFunds100.0

fcnca:FederalReserveBankAdvancesGeneralDebtObligationsAmountOfAvailableUnusedFunds fcnca:LoansPledgedToFederalBanks

fcnca:FederalReserveBankAdvancesGeneralDebtObligationsAmountOfAvailableUnusedFunds

fcnca:FederalReserveBank


Federal
Period End2020-12-312019-12-31
Value33212981
Percentage of FederalReserveBankAdvancesGeneralDebtObligationsAmountOfAvailableUnusedFunds100.0100.0

fcnca:FederalReserveBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged

fcnca:FederalReserveBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged


Federal
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value321031403150298027802090223021902200217021602080
Percentage of FederalReserveBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:FederalReserveBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged fcnca:LoansPledgedToFederalBanks

fcnca:FederalReserveBank


Federal
Period End2021-06-302021-03-312020-12-312019-12-31
Value3532336733212981
Percentage of FederalReserveBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged0.00.00.0100.1

fcnca:FinancingReceivableCollateralCoveragePercentage

fcnca:FinancingReceivableCollateralCoveragePercentage


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value152.1146.3138.2147.31.5831.824
Percentage of FinancingReceivableCollateralCoveragePercentage100.0100.0100.0100.0100.0100.0

fcnca:FinancingReceivableCollateralCoveragePercentage us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:CommercialAndIndustrial, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-06-302020-03-31
Value125.0232.201.0
Percentage of FinancingReceivableCollateralCoveragePercentage82.2158.70.054.8

fcnca:MortgageReceivableNonOwnerOccupied, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value148.3134.0136.4152.71.5922.221
Percentage of FinancingReceivableCollateralCoveragePercentage97.591.698.7103.7100.6121.8

fcnca:MortgageReceivableOwnerOccupied, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value138.1138.1145.6174.22.2962.373
Percentage of FinancingReceivableCollateralCoveragePercentage90.894.4105.4118.3145.0130.1

fcnca:RevolvingMortgage, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value124.5124.5101.61.01.056
Percentage of FinancingReceivableCollateralCoveragePercentage81.985.169.063.257.9

us-gaap:ConstructionLoans, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value138.7126.1126.1137.01.1262.535
Percentage of FinancingReceivableCollateralCoveragePercentage91.286.291.293.071.1139.0

us-gaap:ResidentialMortgage, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value153.6128.1129.4139.41.3161.451
Percentage of FinancingReceivableCollateralCoveragePercentage101.087.693.694.683.179.6

fcnca:FinancingReceivableCollateralCoveragePercentage us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value134.2146.61.6081.86
Percentage of FinancingReceivableCollateralCoveragePercentage97.199.5101.6102.0

us-gaap:FinancialAssetAcquiredWithCreditDeterioration


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value173.4172.0146.4148.71.5361.707
Percentage of FinancingReceivableCollateralCoveragePercentage114.0117.6105.9101.097.093.6

fcnca:FinancingReceivableCollateralCoveragePercentage us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value136.4141.5140.9159.41.8932.332
Percentage of FinancingReceivableCollateralCoveragePercentage89.796.7102.0108.2119.6127.9

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value151.2127.8138.91.3121.416
Percentage of FinancingReceivableCollateralCoveragePercentage99.487.494.382.977.6

fcnca:FinancingReceivableCollateralDependent

fcnca:FinancingReceivableCollateralDependent


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value626458546247
Percentage of FinancingReceivableCollateralDependent100.0100.0100.0100.0100.0100.0

fcnca:FinancingReceivableCollateralDependent us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:CommercialAndIndustrial, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-06-302020-03-31
Value7.7361.2560.00.439
Percentage of FinancingReceivableCollateralDependent12.41.90.00.9

fcnca:MortgageReceivableNonOwnerOccupied, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value5.4056.9515.5567.1216.9954.617
Percentage of FinancingReceivableCollateralDependent8.710.89.413.111.29.6

fcnca:MortgageReceivableOwnerOccupied, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value11119.7925.411109.139
Percentage of FinancingReceivableCollateralDependent18.118.416.610.017.219.1

fcnca:RevolvingMortgage, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value1.3851.3850.310.310.428
Percentage of FinancingReceivableCollateralDependent2.22.10.60.50.9

us-gaap:ConstructionLoans, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.4251.4241.4241.4252.8623.522
Percentage of FinancingReceivableCollateralDependent2.32.22.42.64.67.3

us-gaap:ResidentialMortgage, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value152123221916
Percentage of FinancingReceivableCollateralDependent24.433.039.142.131.235.3

fcnca:FinancingReceivableCollateralDependent us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value39374036
Percentage of FinancingReceivableCollateralDependent67.668.464.776.1

us-gaap:FinancialAssetAcquiredWithCreditDeterioration


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value192019172211
Percentage of FinancingReceivableCollateralDependent31.931.532.431.635.323.9

fcnca:FinancingReceivableCollateralDependent us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value252116132017
Percentage of FinancingReceivableCollateralDependent41.533.328.525.833.036.9

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value1622231918
Percentage of FinancingReceivableCollateralDependent26.735.142.731.739.2

fcnca:FinancingReceivableCollateralDependentAllowanceForCreditLoss

fcnca:FinancingReceivableCollateralDependentAllowanceForCreditLoss


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value230000.0120000.0131000.0162000.0310000.01029000.0
Percentage of FinancingReceivableCollateralDependentAllowanceForCreditLoss100.0100.0100.0100.0100.0100.0

fcnca:FinancingReceivableCollateralDependentAllowanceForCreditLoss us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:CommercialAndIndustrial, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302020-06-302020-03-31
Value230000.000
Percentage of FinancingReceivableCollateralDependentAllowanceForCreditLoss100.00.00.0

us-gaap:ResidentialMortgage, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value120000.0131000.0162000.075000.0117000.0
Percentage of FinancingReceivableCollateralDependentAllowanceForCreditLoss100.0100.0100.024.211.4

fcnca:FinancingReceivableCollateralDependentAllowanceForCreditLoss us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value131000.0162000.075000.0332000.0
Percentage of FinancingReceivableCollateralDependentAllowanceForCreditLoss100.0100.024.232.3

fcnca:FinancingReceivableCollateralDependentAllowanceForCreditLoss us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302020-06-302020-03-31
Value230000.00215000.0
Percentage of FinancingReceivableCollateralDependentAllowanceForCreditLoss100.00.020.9

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-03-312020-09-302020-06-302020-03-31
Value120000.0162000.075000.0117000.0
Percentage of FinancingReceivableCollateralDependentAllowanceForCreditLoss100.0100.024.211.4

fcnca:FinancingReceivableCollateralDependentNonaccrualNoAllowance

fcnca:FinancingReceivableCollateralDependentNonaccrualNoAllowance


Financing
Period End2021-06-302021-03-312020-12-312020-09-30
Value59615752
Percentage of FinancingReceivableCollateralDependentNonaccrualNoAllowance100.0100.0100.0100.0

fcnca:FinancingReceivableCollateralNetRealizableValue

fcnca:FinancingReceivableCollateralNetRealizableValue


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value949481799887
Percentage of FinancingReceivableCollateralNetRealizableValue100.0100.0100.0100.0100.0100.0

fcnca:FinancingReceivableCollateralNetRealizableValue us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:CommercialAndIndustrial, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-06-302020-03-31
Value9.6722.9160.00.439
Percentage of FinancingReceivableCollateralNetRealizableValue10.23.10.00.5

fcnca:MortgageReceivableNonOwnerOccupied, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value8.0179.3127.577101110
Percentage of FinancingReceivableCollateralNetRealizableValue8.49.99.313.611.311.7

fcnca:MortgageReceivableOwnerOccupied, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1516149.4282421
Percentage of FinancingReceivableCollateralNetRealizableValue16.417.417.511.824.924.8

fcnca:RevolvingMortgage, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value1.7241.7240.3150.310.452
Percentage of FinancingReceivableCollateralNetRealizableValue1.81.80.40.30.5

us-gaap:ConstructionLoans, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.9761.7951.7951.9523.2248.928
Percentage of FinancingReceivableCollateralNetRealizableValue2.11.92.22.43.310.2

us-gaap:ResidentialMortgage, us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value232729312524
Percentage of FinancingReceivableCollateralNetRealizableValue24.728.936.639.826.028.1

fcnca:FinancingReceivableCollateralNetRealizableValue us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value53546467
Percentage of FinancingReceivableCollateralNetRealizableValue65.768.165.777.6

us-gaap:FinancialAssetAcquiredWithCreditDeterioration


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value343527253319
Percentage of FinancingReceivableCollateralNetRealizableValue36.437.134.331.934.322.4

fcnca:FinancingReceivableCollateralNetRealizableValue us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value353023223841
Percentage of FinancingReceivableCollateralNetRealizableValue37.232.229.127.939.447.2

us-gaap:FinancialAssetAcquiredAndNoCreditDeterioration, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value2529322526
Percentage of FinancingReceivableCollateralNetRealizableValue26.530.740.226.330.4

fcnca:FinancingReceivableRecordedInvestmentNonaccrualStatusRemainingDiscount fcnca:LoanDesignation

fcnca:FinancingReceivableRecordedInvestmentNonaccrualStatusRemainingDiscount

us-gaap:FinancialAssetAcquiredWithCreditDeterioration


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value35414549546188
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatusRemainingDiscount100.0100.0100.0100.0100.0100.0100.0

fcnca:FinancingReceivableRevolvingConvertedToTermLoan fcnca:LoanDesignation

fcnca:FinancingReceivableRevolvingConvertedToTermLoan

us-gaap:FinancialAssetAcquiredWithCreditDeterioration


Financing
Period End2020-09-302020-06-302020-03-31
Value242627
Percentage of FinancingReceivableRevolvingConvertedToTermLoan100.0100.0100.0

fcnca:FinancingReceivableRevolvingConvertedToTermLoan fcnca:LoanDesignation, us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:FinancialAssetAcquiredWithCreditDeterioration, us-gaap:FinancingReceivables1To29DaysPastDue


Financing
Period End2020-09-302020-06-302020-03-31
Value222325
Percentage of FinancingReceivableRevolvingConvertedToTermLoan91.190.290.9

us-gaap:FinancialAssetAcquiredWithCreditDeterioration, us-gaap:FinancingReceivables30To59DaysPastDue


Financing
Period End2020-09-302020-06-302020-03-31
Value0.1980.3870.46
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.81.51.7

us-gaap:FinancialAssetAcquiredWithCreditDeterioration, us-gaap:FinancingReceivables60To89DaysPastDue


Financing
Period End2020-09-302020-06-302020-03-31
Value0.3310.6240.321
Percentage of FinancingReceivableRevolvingConvertedToTermLoan1.32.41.2

us-gaap:FinancialAssetAcquiredWithCreditDeterioration, us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue


Financing
Period End2020-09-302020-06-302020-03-31
Value1.6471.5811.757
Percentage of FinancingReceivableRevolvingConvertedToTermLoan6.76.06.3

fcnca:FinancingReceivableRevolvingConvertedToTermLoan us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:CommercialAndIndustrial, us-gaap:CommercialPortfolioSegment


Financing
Period End2020-09-302020-06-302020-03-31
Value6.4526.5046.505
Percentage of FinancingReceivableRevolvingConvertedToTermLoan26.324.623.5

fcnca:MortgageReceivableOwnerOccupied, us-gaap:CommercialPortfolioSegment


Financing
Period End2020-09-302020-06-302020-03-31
Value0.2070.2090.211
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.80.80.8

fcnca:RevolvingMortgage, us-gaap:ConsumerPortfolioSegment


Financing
Period End2020-09-302020-06-302020-03-31
Value167170169
Percentage of FinancingReceivableRevolvingConvertedToTermLoan684.2645.9611.4

fcnca:FinancingReceivableRevolvingConvertedToTermLoan us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:FinancingReceivablesPeriodPastDue

fcnca:RevolvingMortgage, us-gaap:ConsumerPortfolioSegment, us-gaap:FinancingReceivables1To29DaysPastDue


Financing
Period End2020-09-302020-06-302020-03-31
Value158156156
Percentage of FinancingReceivableRevolvingConvertedToTermLoan644.6591.9565.4

fcnca:RevolvingMortgage, us-gaap:ConsumerPortfolioSegment, us-gaap:FinancingReceivables30To59DaysPastDue


Financing
Period End2020-09-302020-06-302020-03-31
Value3.4844.2523.99
Percentage of FinancingReceivableRevolvingConvertedToTermLoan14.216.114.4

fcnca:RevolvingMortgage, us-gaap:ConsumerPortfolioSegment, us-gaap:FinancingReceivables60To89DaysPastDue


Financing
Period End2020-09-302020-06-302020-03-31
Value1.1634.1632.934
Percentage of FinancingReceivableRevolvingConvertedToTermLoan4.715.710.6

fcnca:RevolvingMortgage, us-gaap:ConsumerPortfolioSegment, us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue


Financing
Period End2020-09-302020-06-302020-03-31
Value5.0595.8565.827
Percentage of FinancingReceivableRevolvingConvertedToTermLoan20.622.121.0

fcnca:FinancingReceivableRevolvingConvertedToTermLoan us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

fcnca:CommercialAndIndustrial, us-gaap:CommercialPortfolioSegment, us-gaap:Pass


Financing
Period End2020-09-302020-06-302020-03-31
Value5.4335.5655.616
Percentage of FinancingReceivableRevolvingConvertedToTermLoan22.121.020.2

fcnca:CommercialAndIndustrial, us-gaap:CommercialPortfolioSegment, us-gaap:SpecialMention


Financing
Period End2020-09-302020-06-302020-03-31
Value0.2160.2430.073
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.90.90.3

fcnca:CommercialAndIndustrial, us-gaap:CommercialPortfolioSegment, us-gaap:Substandard


Financing
Period End2020-09-302020-06-302020-03-31
Value0.8030.6960.816
Percentage of FinancingReceivableRevolvingConvertedToTermLoan3.32.62.9

fcnca:MortgageReceivableOwnerOccupied, us-gaap:CommercialPortfolioSegment, us-gaap:Pass


Financing
Period End2020-09-302020-06-302020-03-31
Value0.1350.1370.139
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.50.50.5

fcnca:FinancingReceivableRevolvingConvertedToTermLoan us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

fcnca:ConsumerAndPCDPortfolioSegments


Financing
Period End2020-09-302020-06-302020-03-31
Value199204204
Percentage of FinancingReceivableRevolvingConvertedToTermLoan811.3771.2735.6

us-gaap:CommercialPortfolioSegment


Financing
Period End2020-09-302020-06-302020-03-31
Value6.6596.7136.716
Percentage of FinancingReceivableRevolvingConvertedToTermLoan27.125.424.2

us-gaap:ConsumerPortfolioSegment


Financing
Period End2020-09-302020-06-302020-03-31
Value167170169
Percentage of FinancingReceivableRevolvingConvertedToTermLoan684.2645.9611.4

fcnca:ImpairedLoansMeasurementInput us-gaap:Range, us-gaap:MeasurementInputType

fcnca:ImpairedLoansMeasurementInput

srt:Maximum, us-gaap:MeasurementInputDiscountRate


Impaired
Period End2021-06-30
Value10.0
Percentage of ImpairedLoansMeasurementInput100.0

srt:Minimum, us-gaap:MeasurementInputDiscountRate


Impaired
Period End2021-06-30
Value5.0
Percentage of ImpairedLoansMeasurementInput50.0

srt:WeightedAverage, us-gaap:MeasurementInputDiscountRate


Impaired
Period End2021-06-30
Value7.88
Percentage of ImpairedLoansMeasurementInput78.8

fcnca:Impairedloansnotcoveredbylossshareagreements us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

fcnca:Impairedloansnotcoveredbylossshareagreements

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring


Impairedloansnotcoveredbylossshareagreementsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-06-30
Value6.183101110145.4891321181201101051077473727174677061605264617069737473737390425182
Percentage of Impairedloansnotcoveredbylossshareagreements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:Impairedloansnotcoveredbylossshareagreements us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsNonrecurring


Impairedloansnotcoveredbylossshareagreementsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value6.183101110145.48913211812011010510774737271746770616064
Percentage of Impairedloansnotcoveredbylossshareagreements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:InterestReceivableAvailableForSaleDebtSecurities

fcnca:InterestReceivableAvailableForSaleDebtSecurities


Interest
Period End2021-06-302021-03-312020-12-312020-09-30
Value18211723
Percentage of InterestReceivableAvailableForSaleDebtSecurities100.0100.0100.0100.0

fcnca:InterestReceivableHeldToMaturityDebtSecurities

fcnca:InterestReceivableHeldToMaturityDebtSecurities


Interest
Period End2021-06-302021-03-312020-12-312020-09-30
Value6100000.05300000.05400000.01700000.0
Percentage of InterestReceivableHeldToMaturityDebtSecurities100.0100.0100.0100.0

fcnca:InvestmentinBankingSubsidiaries us-gaap:StatementEquityComponents

fcnca:InvestmentinBankingSubsidiaries

us-gaap:Parent


Investmentin
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value4621376333143203293228742750
Percentage of InvestmentinBankingSubsidiaries100.0100.0100.0100.0100.0100.0100.0

fcnca:InvestmentinOtherSubsidiaries us-gaap:StatementEquityComponents

fcnca:InvestmentinOtherSubsidiaries

us-gaap:Parent


Investmentin
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value3.2413.5554141414365
Percentage of InvestmentinOtherSubsidiaries100.0100.0100.0100.0100.0100.0100.0

fcnca:Investmentsecuritiesavailableforsaletransferredtoheldtomaturityamortizedcost us-gaap:InvestmentType

fcnca:Investmentsecuritiesavailableforsaletransferredtoheldtomaturityamortizedcost

us-gaap:MortgageBackedSecuritiesOther


Investmentsecuritiesavailableforsaletransferredtoheldtomaturityamortizedcostus-gaap:
Period End2020-11-01
Value1460
Percentage of Investmentsecuritiesavailableforsaletransferredtoheldtomaturityamortizedcost100.0

fcnca:Investmentsecuritiesavailableforsaletransferredtoheldtomaturityfairvalue us-gaap:InvestmentType

fcnca:Investmentsecuritiesavailableforsaletransferredtoheldtomaturityfairvalue

us-gaap:MortgageBackedSecuritiesOther


Investmentsecuritiesavailableforsaletransferredtoheldtomaturityfairvalueus-gaap:
Period End2020-11-012018-05-01
Value14702380
Percentage of Investmentsecuritiesavailableforsaletransferredtoheldtomaturityfairvalue100.0100.0

fcnca:LeaseLiability

fcnca:LeaseLiability


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value71717476808484
Percentage of LeaseLiability100.0100.0100.0100.0100.0100.0100.0

fcnca:LeaseRightofUseAsset

fcnca:LeaseRightofUseAsset


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value70717476818485
Percentage of LeaseRightofUseAsset100.0100.0100.0100.0100.0100.0100.0

fcnca:Loansandleasesnotacquiredinatransferaccountedforasdebtsecurities

fcnca:Loansandleasesnotacquiredinatransferaccountedforasdebtsecurities


Loansandleasesnotacquiredinatransferaccountedforasdebtsecurities
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value3232932349318872868028322266822617624906249162283320928192891758212104
Percentage of Loansandleasesnotacquiredinatransferaccountedforasdebtsecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:MaximumUndividedProfitsElgibleForDividendPaymentWithoutChangingWellCapitalizedStatus

fcnca:MaximumUndividedProfitsElgibleForDividendPaymentWithoutChangingWellCapitalizedStatus


Maximum
Period End2020-12-31
Value1700
Percentage of MaximumUndividedProfitsElgibleForDividendPaymentWithoutChangingWellCapitalizedStatus100.0

fcnca:NonmarketableSecuritiesandFederalHomeLoanBankStock

fcnca:NonmarketableSecuritiesandFederalHomeLoanBankStock


Nonmarketable
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value45432553433752
Percentage of NonmarketableSecuritiesandFederalHomeLoanBankStock100.0100.0100.0100.0100.0100.0100.0

fcnca:OperatingandFinanceLeaseLiability

fcnca:OperatingandFinanceLeaseLiability


Operatingand
Period End2020-12-31
Value74
Percentage of OperatingandFinanceLeaseLiability100.0

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDue

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDue


Operatingand
Period End2020-12-31
Value86
Percentage of OperatingandFinanceLeaseLiabilityPaymentsDue100.0

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueNextTwelveMonths

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Operatingand
Period End2020-12-31
Value15
Percentage of OperatingandFinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearFive

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearFive


Operatingand
Period End2020-12-31
Value5858000.0
Percentage of OperatingandFinanceLeaseLiabilityPaymentsDueYearFive100.0

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearFour

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearFour


Operatingand
Period End2020-12-31
Value8763000.0
Percentage of OperatingandFinanceLeaseLiabilityPaymentsDueYearFour100.0

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearThree

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearThree


Operatingand
Period End2020-12-31
Value10
Percentage of OperatingandFinanceLeaseLiabilityPaymentsDueYearThree100.0

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearTwo

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueYearTwo


Operatingand
Period End2020-12-31
Value13
Percentage of OperatingandFinanceLeaseLiabilityPaymentsDueYearTwo100.0

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueafterYearFive

fcnca:OperatingandFinanceLeaseLiabilityPaymentsDueafterYearFive


Operatingand
Period End2020-12-31
Value32
Percentage of OperatingandFinanceLeaseLiabilityPaymentsDueafterYearFive100.0

fcnca:OperatingandFinanceLeaseLiabilityUndiscountedExcessAmount

fcnca:OperatingandFinanceLeaseLiabilityUndiscountedExcessAmount


Operatingand
Period End2020-12-31
Value12
Percentage of OperatingandFinanceLeaseLiabilityUndiscountedExcessAmount100.0

fcnca:PayableToFdicForLossShareAgreements

fcnca:PayableToFdicForLossShareAgreements


Payable
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-06-302012-03-312011-12-31
Value15151514112110108107105104103102101100999897959412812612412211811611611411110910710198101918277
Percentage of PayableToFdicForLossShareAgreements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:PayableToFdicForLossShareAgreements us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Payable
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value151515141121101081071051041031021011009998979594128126124122118116116114111109107101
Percentage of PayableToFdicForLossShareAgreements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


Payable
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value15151515114113111109105104103103102102101100100101100136131131128126122124119115111123125
Percentage of PayableToFdicForLossShareAgreements101.6103.1104.7106.4101.7102.5102.2102.5100.2100.0100.5101.0101.3102.4102.7103.0103.2105.6106.5106.6104.3106.2104.9106.3104.8106.3104.5103.4102.3114.8123.0

fcnca:PayableToFdicForLossShareAgreements us-gaap:StatementScenario

srt:ScenarioForecast


Payable
Period End2021-03-31
Value15
Percentage of PayableToFdicForLossShareAgreements0.0

fcnca:ReserveForUnfundedCommitments

fcnca:ReserveForUnfundedCommitments


Reserve
Period End2020-12-312020-09-302020-06-302020-03-31
Value12141310
Percentage of ReserveForUnfundedCommitments100.0100.0100.0100.0

fcnca:ResidentialMortgageLoansServiced

fcnca:ResidentialMortgageLoansServiced


Residential
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value34003300331033603370341033803060301029702950291028702850281027502590255024902390224022002150210020001950
Percentage of ResidentialMortgageLoansServiced100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:TimeDepositsGreaterthan250000CarryingValue

fcnca:TimeDepositsGreaterthan250000CarryingValue


Time
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value670891567414519578552525
Percentage of TimeDepositsGreaterthan250000CarryingValue100.0100.0100.0100.0100.0100.0100.0100.0

fcnca:TrustPreferredSecurities

fcnca:TrustPreferredSecurities


Trust
Period End2020-12-312019-12-312018-12-312017-12-31
Value128128118116
Percentage of TrustPreferredSecurities100.0100.0100.0100.0

fcnca:UnfundedLoanCommitmentsAvailableToRelatedParties

fcnca:UnfundedLoanCommitmentsAvailableToRelatedParties


Unfunded
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2.62.64.32.11.81.41.35.54.4464.34316
Percentage of UnfundedLoanCommitmentsAvailableToRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedFeesAndOtherRevenueReceivable

us-gaap:AccruedFeesAndOtherRevenueReceivable


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value1331481451511751251231171151131091059996959086807974717370676663574849494846454747514952424350988383777360
Percentage of AccruedFeesAndOtherRevenueReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedFeesAndOtherRevenueReceivable us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value133148145151175125123117115113109105999695908680797471737067666357484949484647
Percentage of AccruedFeesAndOtherRevenueReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value133148145151175125123117115113109105999695908680797471737067666357484949484647
Percentage of AccruedFeesAndOtherRevenueReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossBeforeTax1

us-gaap:AccumulatedOtherComprehensiveIncomeLossBeforeTax1


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value-28.727-43.72815-17.864-12.552-33.264-164.576-223.08-234.716-268.65-305.438-321.526-317.713-299.122-193.833-146.236-162.981-175.861-214.481-24.499-24.337-38.596-104.352-57.412-83.716-57.939-86.69-3.1736.499-27.217-41.434-156.536-134.923
Percentage of AccumulatedOtherComprehensiveIncomeLossBeforeTax1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossBeforeTax1 us-gaap:StatementEquityComponents

fcnca:AccumulatedNetUnrealizedLossOnSecuritiesAvailableForSaleTransferredToHeldToMaturity


Accumulated
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value4.1394.9245.3990.0-74.397-80.492-86.439-92.401-98.532-105.0340.0
Percentage of AccumulatedOtherComprehensiveIncomeLossBeforeTax1-14.4-11.333.9-0.033.334.332.230.330.633.1-0.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value-78.204-85.222-91.751-153.104-159.436-165.834-172.098-154.795-157.54-160.275-163.03-134.513-138.008-141.662-144.999-134.484-136.814-139.274-141.774-73.117-74.885-76.767-78.419-82.007-84.923-87.81-90.696-13.563-14.385-15.983-17.582-145.438-158.334
Percentage of AccumulatedOtherComprehensiveIncomeLossBeforeTax1272.2194.9-576.1857.11270.2498.5104.669.467.159.753.441.843.447.474.892.083.979.266.1298.4307.7198.975.1142.8101.4151.6104.6427.5-221.358.742.492.9117.4

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value45361021351461327.5226.1123.316-21.936-50.007-88.481-74.671-157.46-48.834-11.752-26.167-36.587-72.707485038-24.504264.259338.3431526-4.733-16.632-3.18933
Percentage of AccumulatedOtherComprehensiveIncomeLossBeforeTax1-157.8-83.6642.2-757.1-1170.2-398.5-4.6-2.7-1.48.216.427.523.552.625.28.016.120.833.9-198.4-207.7-100.823.5-46.9-5.1-58.0-9.6-484.5412.617.440.12.0-25.1

us-gaap:AdvancesFromFederalHomeLoanBanks fcnca:LoansPledgedToFederalBanks

us-gaap:AdvancesFromFederalHomeLoanBanks

srt:FederalHomeLoanBankOfAtlanta


Advances
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value646648652652653787563181183175
Percentage of AdvancesFromFederalHomeLoanBanks100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestments

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestments


Amortization
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value16316714715115013412812412711610910410711085747657
Percentage of AmortizationMethodQualifiedAffordableHousingProjectInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestments us-gaap:GuaranteeObligationsByNature

us-gaap:CommitmentsToExtendCredit


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value5449536068687075807267
Percentage of AmortizationMethodQualifiedAffordableHousingProjectInvestments0.00.032.80.00.00.041.70.00.00.046.1

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value7181111143157144256.42532156.3672028
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:InvestmentType

us-gaap:AgencySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value4.9810.7840.7230.6420.2921.0050.9280.2220.0150.1070.230.7021.798
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax6.91.00.70.40.20.73.73.50.00.73.63.46.4

us-gaap:CommercialMortgageBackedSecurities


Available
Period End2020-12-312019-12-31
Value256.974
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax23.127.5

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value2418149.1324.3873.523.420.0590.557
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax34.522.513.06.42.82.413.50.91.7

us-gaap:ResidentialMortgageBackedSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value294770101119123135.309
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax40.958.663.270.876.485.552.982.6

us-gaap:USTreasurySecurities


Available
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value0.1010.1740.2360.8110.6020.6330.00.5790.0042.9220.259
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.10.10.20.62.49.90.03.80.114.20.9

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value26448.9118.51011175680
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:InvestmentType

us-gaap:AgencySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value3.7476.4035.5734.9614.2562.9162.2410.6390.04
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax14.114.362.558.441.825.412.61.10.0

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value0.2170.5482.0282.7935.2375.1730.1320.8640.008
Percentage of AvailableForSaleDe