PFG


Line plots across dimensions of each concept
Tables

Table of contents



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

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
us-gaap:ConsolidationItems
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments, us-gaap:Subsegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:Subsegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

us-gaap:Revenues
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:InvestmentType
us-gaap:RealizedInvestmentGainsLosses

us-gaap:PremiumsEarnedNet
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:Subsegments

us-gaap:NetInvestmentIncome
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:Subsegments
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:GainLossOnInvestments
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:BenefitsLossesAndExpenses
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:ProfitLoss
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:StatementEquityComponents

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:Assets
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:StatementBusinessSegments

us-gaap:Liabilities
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:StockholdersEquity
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:StatementEquityComponents

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:Goodwill
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:LongTermDebt
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:DebtInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:MinorityInterest
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:StockholdersEquity
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:TreasuryStockValue
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:MinorityInterest
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:NetCashProvidedByUsedInInvestingActivities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:NetCashProvidedByUsedInFinancingActivities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:NetCashProvidedByUsedInOperatingActivities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:ProfitLoss
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:NetCashProvidedByUsedInInvestingActivities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:NetCashProvidedByUsedInFinancingActivities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:PaymentsOfDividendsCommonStock
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:RepaymentsOfLongTermDebt
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:EffectiveIncomeTaxRateContinuingOperations
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:ProceedsFromRepaymentsOfShortTermDebt
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:StatementEquityComponents
pfg:AdjustmentsForAssumedChangesInAmortizationPatternsBeforeTax
us-gaap:StatementEquityComponents
pfg:AdjustmentsForAssumedChangesInAmortizationPatternsNetOfTax
us-gaap:StatementEquityComponents
pfg:AdjustmentsForAssumedChangesInAmortizationPatternsTax
us-gaap:StatementEquityComponents
pfg:AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsBeforeTax
us-gaap:StatementEquityComponents
pfg:AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsNetOfTax
us-gaap:StatementEquityComponents
pfg:AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsTax

pfg:AdjustmentsToRedemptionAmountOfRedeemableNoncontrollingInterest
us-gaap:StatementEquityComponents

pfg:AvailableForSaleDebtSecuritiesHedgingNet

pfg:CapitalGainsLossesDistributed
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
pfg:CapitalReceivedFromDividendsPaidToParent
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

pfg:ContributionsToRedeemableNoncontrollingInterest
us-gaap:AdjustmentsForNewAccountingPronouncements
pfg:CumulativeEffectOfProspectiveApplicationOfNewAccountingPrincipleNetOfTax
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents

pfg:DebtSecuritiesAvailableForSaleNetCreditLoss

pfg:DeferredAcquisitionCostAndOtherActuarialBalancesAmortizationExpense

pfg:DerivativeAndHedgingRelatedAdjustments

pfg:DistributionsToRedeemableNoncontrollingInterest
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
pfg:DividendsReceivedFromContributionsToUnconsolidatedEntities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

pfg:EffectiveIncomeTaxRateReconciliationLocalCountryPermanentTaxAdjustmentsPercent

pfg:EquityMethodInvestmentsRelatedAdjustments
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
pfg:FairValueAssetsLevel2ToLevel3TransfersAmount
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
pfg:FairValueAssetsLevel3ToLevel2TransfersAmount
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
pfg:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarningsRelatingToPositionsStillHeld
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
pfg:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByLiabilityClass, us-gaap:FairValueByMeasurementFrequency
pfg:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisIssuesNet
us-gaap:FairValueByLiabilityClass, us-gaap:FairValueByMeasurementFrequency
pfg:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitiesGainLossIncludedInEarningsRelatingToPositionsStillHeld
us-gaap:FairValueByMeasurementFrequency
pfg:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetDerivativeAssetsGainLossIncludedInEarningsRelatingToPositionsStillHeld
us-gaap:ConsolidationItems
pfg:FeesAndOtherRevenuesNotWithinScopeOfRevenueRecognitionGuidance
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:Subsegments
us-gaap:FinancingReceivablePortfolioSegment
pfg:FinancingReceivableAccruedInterestWriteoff

pfg:FrontEndFeeRevenuesRecognition

pfg:IncomeLossFromContinuingOperationsBeforeIncomeTaxes
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:StatementBusinessSegments
pfg:InterSegmentRevenue

pfg:InvestmentAdvisoryAssetManagementAndInsuranceFeesAndCommissions
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:Subsegments

pfg:MarketValueAdjustmentsEmbeddedDerivatives

pfg:MinorityInterestIncreaseFromContributionsFromNoncontrollingInterest
us-gaap:StatementEquityComponents

pfg:NetGainLossExcludingAvailableForSaleImpairments
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

pfg:OperatingExpensesIncludingDeferredAcquisitionCostsCapitalizationAndAmortization
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:ConsolidationItems
pfg:OperatingRevenues
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:Subsegments

pfg:OtherComprehensiveIncomeAvailableForSaleSecuritiesPeriodIncreaseDecreaseNetOfTax

pfg:OtherComprehensiveIncomeDerivativesPeriodIncreaseDecreaseNetOfTax

pfg:OtherComprehensiveIncomeLossAttributableToRedeemableNoncontrollingInterest

pfg:OtherComprehensiveIncomeLossNetOfTaxExcludingRedeemableNoncontrollingInterest
us-gaap:StatementEquityComponents

pfg:PaymentsToAcquirePropertyPlantAndEquipmentNet
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
pfg:PeriodicSettlementOnDerivatives
us-gaap:ConsolidationItems
pfg:PreTaxOtherAdjustmentsInReconcilingSegmentRevenuesToConsolidatedIncome
us-gaap:ConsolidationItems
pfg:PretaxOperatingEarnings
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

pfg:ProceedsFromMaturitiesRepaymentsAndCallsOfDebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNi
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

pfg:ProceedsFromSaleOfDebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNi
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:ConsolidationItems
pfg:SegmentReportingInformationEarningsAdjustmentsRelatedToEquityMethodInvestmentsAndNoncontrollingInterest

pfg:SegmentReportingInformationNetRealizedCapitalGainsLosses
us-gaap:ConsolidationItems

pfg:SegmentReportingInformationPretaxNetRealizedCapitalGainsLossesNetOfAdjustments
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems
pfg:SegmentReportingInformationRevenueAdjustmentsRelatedToEquityMethodInvestments
us-gaap:PlanName
pfg:ShareBasedCompensationArrangementShareBasedPaymentAwardAmountCapitalized

pfg:SponsoredInvestmentFundsRelatedAdjustments

pfg:StockBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
pfg:TreasuryStockAcquiredRepurchaseAuthorizationAmount

pfg:UnrealizedGainsLossesOnEquitySecuritiesFvNiReportedInNetInvestmentIncome

us-gaap:AdditionsToContractHoldersFunds
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:CapitalizedContractCostAmortization

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1
us-gaap:StatementEquityComponents
us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment

us-gaap:DebtSecuritiesTradingRealizedGainLoss

us-gaap:DebtSecuritiesTradingUnrealizedGainLoss
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanContributionsByEmployer
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
us-gaap:DerivativeFairValueHedgeIncludedInEffectivenessGainLoss

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
us-gaap:DerivativeInstrumentRisk

us-gaap:DividendsCommonStock
us-gaap:StatementEquityComponents

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:EffectiveIncomeTaxRateReconciliationDeductionsDividends

us-gaap:EffectiveIncomeTaxRateReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary

us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments

us-gaap:EffectiveIncomeTaxRateReconciliationTaxCredits

us-gaap:EffectiveIncomeTaxRateReconciliationTaxExemptIncome
us-gaap:PlanName
us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentSecondaryCategorization
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
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us-gaap:FinancingReceivablePortfolioSegment
us-gaap:CreditRatingStandardPoors, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:CreditRatingStandardPoors, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableRecordedInvestmentCurrent
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableRecordedInvestmentPastDue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsMaximumExposure
us-gaap:BalanceSheetLocation
us-gaap:HedgedAssetDiscontinuedFairValueHedgeCumulativeIncreaseDecrease
us-gaap:BalanceSheetLocation
us-gaap:HedgedAssetFairValueHedge
us-gaap:BalanceSheetLocation
us-gaap:HedgedAssetFairValueHedgeCumulativeIncreaseDecrease

us-gaap:InterestReceivable
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:Investments
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense

us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet

us-gaap:LoansInsurancePolicy
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:LoansPledgedAsCollateral

us-gaap:MortgageLoansOnRealEstateCommercialAndConsumerNet
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:NotesReceivableGross

us-gaap:OtherAssets
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:OtherInvestments
us-gaap:ConsolidatedEntities

us-gaap:OtherLiabilities
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:OtherPolicyholderFunds
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:PremiumsAndOtherReceivablesNet
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:RealEstateInvestments
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments

us-gaap:SeparateAccountAssets
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:SeparateAccountsLiability
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:ShortTermBorrowings
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:TradingSecuritiesDebt
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor
us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:TreasuryStockShares
us-gaap:InvestmentSecondaryCategorization, us-gaap:InvestmentType
us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount
us-gaap:InvestmentType
us-gaap:InvestmentSecondaryCategorization, us-gaap:InvestmentType
us-gaap:VariableInterestEntityNonconsolidatedCarryingAmountAssets
us-gaap:InvestmentType

Tables

  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CommonStockValue ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄444444444444444444444444444444444444444NANANA4NANANA
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock▁▁▁▂▂▂▂▂▃▃▃▃▃▃▃▃▃▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▅▅▆▇████274273276278278278279283284287289288288288287287288290291293294294293293293294295293293293293293295300301305313321320320319NA319NANANA
us-gaap:CommonStockSharesIssued ████▇▇▇▇▇▇▇▆▆▆▅▅▅▅▅▅▅▄▄▄▄▄▃▃▃▂▂▂▂▂▁▁▁▁▁481480479479478478476476476476474473472471469468468468466466465464462462461460459458456455453453452452450450449449448NANANA447NANANA
us-gaap:CommonStockSharesOutstanding ▁▁▁▂▂▂▂▂▃▃▃▃▃▃▃▃▃▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▅▅▆▇██274273276278278278279283284287289288288288287287288290291293294294293293293294295293293293293293295300301305313321320NANANA319NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█275277NA281281280NA287289292NA293292292NA291292294NA298298298NA298298299NA298297297NA297301304NA314323324NA323322322NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█274275NA279279278NA284286289NA289288288NA288289291NA295295294NA294294295NA294294294NA294299301NA311320321NA320320319NANANANA
us-gaap:EarningsPerShareBasic ▄▃▃▃▄▄▃▅▅▄██▃▄▃▃▃▄▃▃▃▄▃▂▃▃▃▃▂▂▂▂▂▂▂▁▃▂▂▂▂▂▂▂▂▂1.451.051.080.991.381.540.841.61.591.372.912.81.071.211.11.071.111.260.871.020.821.410.920.781.040.960.790.830.760.610.740.610.580.670.540.20.810.610.620.440.420.60.440.580.520.43
us-gaap:EarningsPerShareDiluted ▄▃▃▃▄▄▃▅▅▄██▃▄▃▃▃▄▃▃▃▄▃▂▃▃▃▃▂▂▂▂▂▂▂▁▃▂▂▂▂▂▂▂▂▂1.451.041.070.981.371.530.831.591.581.362.872.761.061.191.091.061.11.250.861.010.811.390.910.771.030.950.780.820.750.610.740.60.580.660.540.20.80.60.620.440.420.590.440.570.520.43
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems us-gaap:OperatingSegments▁█653700NA692587561NA862614602NA584567551NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pfg:CommissionIncome,pfg:SegmentCorporate▁█7280NA827875NA787879NA727873NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:FinancialServiceOther,pfg:SegmentCorporate█▁1311NA12118NA898NA7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:FinancialServiceOther,pfg:SegmentPrincipalGlobalInvestors▁█4461NA474239NA3055844NA50NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:FinancialServiceOther,pfg:SegmentPrincipalInternational▁█01NA000NA011NA2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:ManagementService,pfg:SegmentPrincipalGlobalInvestors▁█303321NA315304292NA317312316NA309NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:ManagementService,pfg:SegmentPrincipalInternational▁█100108NA114115114NA117121120NA106NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,pfg:CommissionIncome,pfg:SegmentUSInsuranceSolutions,pfg:SubsegmentIndividualLifeInsurance▁█67NA666NA543NA334NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,us-gaap:AdministrativeService,pfg:SegmentRetirementAndIncomeSolutions,pfg:SubsegmentRetirementAndIncomeSolutionsFee▁█150156NA1556358NA636661NA62NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,us-gaap:AdministrativeService,pfg:SegmentUSInsuranceSolutions,pfg:SubsegmentIndividualLifeInsurance▄▄55NA665NA55NANA5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,us-gaap:AdministrativeService,pfg:SegmentUSInsuranceSolutions,pfg:SubsegmentSpecialtyBenefitsInsurance▄▄33NA333NA33NANA3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,us-gaap:DepositAccount,pfg:SegmentRetirementAndIncomeSolutions,pfg:SubsegmentRetirementAndIncomeSolutionsSpread▄▄22NA222NA222NA2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:ProductOrService,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,us-gaap:FinancialServiceOther,pfg:SegmentRetirementAndIncomeSolutions,pfg:SubsegmentRetirementAndIncomeSolutionsFee▄▄00NA000NA000NA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pfg:SegmentCorporate█▁3532NA394237NA403743NA373732NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pfg:SegmentPrincipalGlobalInvestors▁█348382NA362346332NA623371360NA359344340NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pfg:SegmentPrincipalInternational▁█101109NA114116114NA118123121NA109105100NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pfg:SegmentRetirementAndIncomeSolutions▁█153158NA1586661NA666964NA656865NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pfg:SegmentUSInsuranceSolutions▁█1416NA161615NA141313NA121213NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,pfg:SegmentRetirementAndIncomeSolutions,pfg:SubsegmentRetirementAndIncomeSolutionsFee▁█151156NA1566358NA636661NA636562NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,pfg:SegmentRetirementAndIncomeSolutions,pfg:SubsegmentRetirementAndIncomeSolutionsSpread▄▄22NA222NA222NA222NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,pfg:SegmentUSInsuranceSolutions,pfg:SubsegmentIndividualLifeInsurance▁█1112NA121212NA1199NA899NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,pfg:SegmentUSInsuranceSolutions,pfg:SubsegmentSpecialtyBenefitsInsurance▄▄33NA333NA333NA333NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pfg:CorporateAndRegional,pfg:SegmentPrincipalInternational▄▄00NA000NA000NA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pfg:SegmentGeographicalAreaEliminations,pfg:SegmentPrincipalInternational▄▄00NA000NA000NA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,srt:Asia,pfg:SegmentPrincipalInternational▁█2728NA272727NA262628NA27NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,srt:LatinAmerica,pfg:SegmentPrincipalInternational▁█7481NA878888NA929692NA81NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Revenues ▄█▆█▆▆▆▇▄▃▄█▄▄▅▃▄▄▃▄▄▃▃▂▂▂▃▁▁▁▂▃▁▁▁▁▂▁▂▂▁▂▁▂▁▁3114455140474458397237433770434832342883323746273178304935132818302530362807324032592657290824842606247826722239221021662295270421182095205920882342221923722288223322642232227021572188
 us-gaap:RealizedInvestmentGainsLosses us-gaap:InvestmentType pfg:MortgageLoans█▁0-15NA000NA120NA100NA102NA-12-2NA-12NA1NANANANANANANANANANANANANANANANANANANANA
 us-gaap:RealizedInvestmentGainsLosses us-gaap:InvestmentType pfg:OtherInvestmentTypes█▁58-72NA-72-1249NA-7612915NA719914NA2862NA4-2713NA-10627NANANANANANANANANANANANANANANANANANANANA
us-gaap:PremiumsEarnedNet ▁█11532291NA227419321724NA21721265995NA212614521248NA100212761282NA15571682916NA875835803NA7037376947001158681679NA672751797NA865868878NANANANA
 us-gaap:PremiumsEarnedNet us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,pfg:SegmentRetirementAndIncomeSolutions,pfg:SubsegmentRetirementAndIncomeSolutionsSpread▁█4591521NA14991171957NA1495555288NA1495814623NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PremiumsEarnedNet us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,pfg:SegmentUSInsuranceSolutions,pfg:SubsegmentSpecialtyBenefitsInsurance▁█582588NA579571555NA539527517NA505490478NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetInvestmentIncome ▁█944983NA9961037961NA919889902NA838866877NA856799761NA753789723NA770829844NA784749789845783801824NA815873859NA880877863NANANANA
 us-gaap:NetInvestmentIncome us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pfg:SegmentPrincipalInternational█▁144104NA172184146NA112163162NA120156166NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetInvestmentIncome us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,pfg:SegmentRetirementAndIncomeSolutions,pfg:SubsegmentRetirementAndIncomeSolutionsFee▁█102104NA10110499NA116106110NA108113119NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetInvestmentIncome us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,pfg:SegmentRetirementAndIncomeSolutions,pfg:SubsegmentRetirementAndIncomeSolutionsSpread▁█506536NA509531495NA467433428NA413411402NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetInvestmentIncome us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments,us-gaap:Subsegments us-gaap:OperatingSegments,pfg:SegmentUSInsuranceSolutions,pfg:SubsegmentIndividualLifeInsurance█▁176166NA178179169NA167162161NA161163157NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GainLossOnInvestments ▁█-27131NA-42-484NA-567-25NA676-95-16NA4433136NA38-11466NA-46860NA-50-80-5032870-6NA-3037-58NA-20-66-45NANANANA
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us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest █▁2464-1361NA94014641598NA251-212-333NA978653574NA438666908NA89-84406NA26558500NA241-393169NA522245449NA-223463476NA953370657NANANANA
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  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
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 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss█▄▇▇▆▃▁▁▂▃▄▄▃▃▂▄▄▃▂▃▃▃▃▃▃3388135028063066227912941902484479141470140013309958311560143911367329819531259120211741248NA878NANANA1418NANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CashAndCashEquivalentsAtCarryingValue ▆▆▄▆▆▄▅▅▄▄▄▅▃▂▅▄▄▃▄▄▄▂▃▁▂▂▄▂▁▂█▄▂▂▅▂▃▃▃▄▃▂▄3150348225153198331522592977292623422335247027952006153427192218225521422564251422641452186312701742139323711707111016614177227916461651283314342169198418772268182716292240NANANA
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  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:PropertyPlantAndEquipmentNet █████▇▅▅▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▂▂▁▁▁▁▁▁▁993973967961959933767770762775759754750718699674667657633611601607590590574546500479476472464468469NA457NANANANANANANANANANANA
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us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▁█122NA531NA118NANANA1NANANA0NANANA0NANANA22NANANA3NANANA3NANANA2NANANA1NANANANA
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  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
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  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
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us-gaap:ProfitLoss ▄▃▃▃▄▄▂▅▅▄██▃▄▃▃▃▄▃▃▃▄▃▃▃▃▃▃▃▂▂▂▂▂▂▁▃▂▂▂▂▂▂▂▂▂41628531528439245223146045940284281331435333832732736925830026442928025231932425025923619023019118421817166289223218151144203154204164122
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
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  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
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 us-gaap:ProceedsFromIssuanceOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor srt:ConsolidationEliminations,pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantorNA-2NANANA-2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProceedsFromIssuanceOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor srt:ReportableLegalEntities,pfg:SubsidiaryPrincipalFinancialServicesConsolidateNA2NANANA2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RepaymentsOfLongTermDebt NA64NANANA0NANANA0NANANANANANANANANANANA19NANANA100NANANA0NANANA0NANANA1NANANA3NANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesNotesGuarantor srt:ConsolidationEliminations,pfg:ConsolidationEliminationsAndOtherNotesGuarantorNA-1NANANA-5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesNotesGuarantor srt:ReportableLegalEntities,pfg:SubsidiariesPrincipalFinancialServicesAndOtherNA65NANANA6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor srt:ConsolidationEliminations,pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantorNA-9NANANA-9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor srt:ReportableLegalEntities,pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidateNA64NANANA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor srt:ReportableLegalEntities,pfg:SubsidiaryPrincipalFinancialServicesConsolidateNA9NANANA9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsOfDividendsCommonStock NA153NANANA150NANANA147NANANA130NANANA110NANANA106NANANA82NANANA67NANANA54NANANANANANANANANANANANA
 us-gaap:PaymentsOfDividendsCommonStock us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesNotesGuarantor srt:ReportableLegalEntities,srt:ParentCompanyNA153NANANA150NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PaymentsOfDividendsCommonStock us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor srt:ReportableLegalEntities,srt:ParentCompanyNA153NANANA150NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock NA231NANANA153NANANA199NANANA142NANANA105NANANA75NANANA89NANANA90NANANA64NANANA5NANANA1NANANANA
 us-gaap:PaymentsForRepurchaseOfCommonStock us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesNotesGuarantor srt:ReportableLegalEntities,srt:ParentCompanyNA231NANANA153NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PaymentsForRepurchaseOfCommonStock us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor srt:ReportableLegalEntities,srt:ParentCompanyNA231NANANA153NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:RepaymentsOfLongTermDebt NA64NANANA0NANANA0NANANANANANANANANANANA19NANANA100NANANA0NANANA0NANANA1NANANA3NANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesNotesGuarantor srt:ConsolidationEliminations,pfg:ConsolidationEliminationsAndOtherNotesGuarantorNA-1NANANA-5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesNotesGuarantor srt:ReportableLegalEntities,pfg:SubsidiariesPrincipalFinancialServicesAndOtherNA65NANANA6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor srt:ConsolidationEliminations,pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantorNA-9NANANA-9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor srt:ReportableLegalEntities,pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidateNA64NANANA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidationItems,pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor srt:ReportableLegalEntities,pfg:SubsidiaryPrincipalFinancialServicesConsolidateNA9NANANA9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument pfg:NotesPayable2.125PercentDue20300.02125NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType pfg:NotesPayable2.125PercentDue2030,us-gaap:SeniorNotesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

us-gaap:CommonStockValue



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4444444444444444444444444444444444444444
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value274273276278278278279283284287289288288288287287288290291293294294293293293294295293293293293293295300301305313321320320319319259
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Shares Outstanding

us-gaap:CommonStockSharesIssued



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value481480479479478478476476476476474473472471469468468468466466465464462462461460459458456455453453452452450450449449448447
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Issued

us-gaap:CommonStockSharesOutstanding



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value274273276278278278279283284287289288288288287287288290291293294294293293293294295293293293293293295300301305313321320319
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value275277281281280287289292293292292291292294298298298298298299298297297297301304314323324323322322
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value274275279279278284286289289288288288289291295295294294294295294294294294299301311320321320320319
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:EarningsPerShareBasic



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1.451.051.080.991.381.540.841.61.591.372.912.81.071.211.11.071.111.260.871.020.821.410.920.781.040.960.790.830.760.610.740.610.580.670.540.20.810.610.620.440.420.60.440.580.520.43
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareDiluted



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1.451.041.070.981.371.530.831.591.581.362.872.761.061.191.091.061.11.250.861.010.811.390.910.771.030.950.780.820.750.610.740.60.580.660.540.20.80.60.620.440.420.590.440.570.520.43
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:ConsolidationItems

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:OperatingSegments


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value653700692587561862614602584567551
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues21.015.415.514.815.019.819.020.912.617.918.1
Percentage of Revenues us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, pfg:CommissionIncome, pfg:SegmentCorporate


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value7280827875787879727873
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.111.511.813.413.59.112.813.112.413.813.3
Percentage of Revenues2.31.81.82.02.01.82.42.71.62.52.4
Percentage of Revenues us-gaap:OperatingSegments pfg:CommissionIncome pfg:SegmentCorporate0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:ProductsAndServicesEliminations, pfg:SegmentCorporate


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-50-58-55-47-47-47-50-43-42-48-47
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7.7-8.4-7.9-8.1-8.5-5.5-8.3-7.1-7.3-8.6-8.6
Percentage of Revenues-1.6-1.3-1.2-1.2-1.3-1.1-1.6-1.5-0.9-1.5-1.6
Percentage of Revenues us-gaap:OperatingSegments pfg:ProductsAndServicesEliminations pfg:SegmentCorporate0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, us-gaap:FinancialServiceOther, pfg:SegmentCorporate


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value1311121188987
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.11.61.81.91.61.01.51.31.3
Percentage of Revenues0.40.20.30.30.20.20.30.30.2
Percentage of Revenues us-gaap:OperatingSegments us-gaap:FinancialServiceOther pfg:SegmentCorporate0.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, us-gaap:FinancialServiceOther, pfg:SegmentPrincipalGlobalInvestors


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value4461474239305584450
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.88.86.97.27.035.49.67.38.7
Percentage of Revenues1.41.41.11.11.17.01.81.51.1
Percentage of Revenues us-gaap:OperatingSegments us-gaap:FinancialServiceOther pfg:SegmentPrincipalGlobalInvestors0.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, us-gaap:FinancialServiceOther, pfg:SegmentPrincipalInternational


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value010000112
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.10.10.20.20.4
Percentage of Revenues0.00.00.00.00.00.00.00.00.1
Percentage of Revenues us-gaap:OperatingSegments us-gaap:FinancialServiceOther pfg:SegmentPrincipalInternational0.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, us-gaap:ManagementService, pfg:SegmentPrincipalGlobalInvestors


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value303321315304292317312316309
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.545.845.651.852.236.850.852.552.9
Percentage of Revenues9.77.17.17.77.87.39.711.06.7
Percentage of Revenues us-gaap:OperatingSegments us-gaap:ManagementService pfg:SegmentPrincipalGlobalInvestors0.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, us-gaap:ManagementService, pfg:SegmentPrincipalInternational


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value100108114115114117121120106
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.415.516.519.720.413.619.819.918.2
Percentage of Revenues3.22.42.62.93.12.73.84.22.3
Percentage of Revenues us-gaap:OperatingSegments us-gaap:ManagementService pfg:SegmentPrincipalInternational0.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, pfg:CommissionIncome, pfg:SegmentUSInsuranceSolutions, pfg:SubsegmentIndividualLifeInsurance


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value67666543334
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.91.01.01.11.10.60.70.60.60.60.8
Percentage of Revenues0.20.20.20.20.20.10.10.10.10.10.1
Percentage of Revenues us-gaap:OperatingSegments pfg:CommissionIncome pfg:SegmentUSInsuranceSolutions pfg:SubsegmentIndividualLifeInsurance0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, us-gaap:AdministrativeService, pfg:SegmentRetirementAndIncomeSolutions, pfg:SubsegmentRetirementAndIncomeSolutionsFee


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value150156155635863666162
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.122.322.510.810.47.310.810.210.7
Percentage of Revenues4.83.43.51.61.61.52.02.11.4
Percentage of Revenues us-gaap:OperatingSegments us-gaap:AdministrativeService pfg:SegmentRetirementAndIncomeSolutions pfg:SubsegmentRetirementAndIncomeSolutionsFee0.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, us-gaap:AdministrativeService, pfg:SegmentUSInsuranceSolutions, pfg:SubsegmentIndividualLifeInsurance


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-09-30
Value55665555
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.80.80.91.11.10.60.90.9
Percentage of Revenues0.20.10.10.20.20.10.20.1
Percentage of Revenues us-gaap:OperatingSegments us-gaap:AdministrativeService pfg:SegmentUSInsuranceSolutions pfg:SubsegmentIndividualLifeInsurance0.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, us-gaap:AdministrativeService, pfg:SegmentUSInsuranceSolutions, pfg:SubsegmentSpecialtyBenefitsInsurance


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-09-30
Value33333333
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.50.50.60.70.40.60.6
Percentage of Revenues0.10.10.10.10.10.10.10.1
Percentage of Revenues us-gaap:OperatingSegments us-gaap:AdministrativeService pfg:SegmentUSInsuranceSolutions pfg:SubsegmentSpecialtyBenefitsInsurance0.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, us-gaap:DepositAccount, pfg:SegmentRetirementAndIncomeSolutions, pfg:SubsegmentRetirementAndIncomeSolutionsSpread


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value222222222
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.30.40.50.30.40.40.4
Percentage of Revenues0.10.00.10.10.10.10.10.10.1
Percentage of Revenues us-gaap:OperatingSegments us-gaap:DepositAccount pfg:SegmentRetirementAndIncomeSolutions pfg:SubsegmentRetirementAndIncomeSolutionsSpread0.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, us-gaap:FinancialServiceOther, pfg:SegmentRetirementAndIncomeSolutions, pfg:SubsegmentRetirementAndIncomeSolutionsFee


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value000000000
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.10.10.00.10.10.00.1
Percentage of Revenues0.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments us-gaap:FinancialServiceOther pfg:SegmentRetirementAndIncomeSolutions pfg:SubsegmentRetirementAndIncomeSolutionsFee0.00.00.00.00.00.00.00.00.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, pfg:SegmentCorporate


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value3532394237403743373732
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.54.75.77.26.64.76.07.36.46.65.8
Percentage of Revenues1.20.70.91.11.00.91.11.50.81.21.1
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentCorporate0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentPrincipalGlobalInvestors


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value348382362346332623371360359344340
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax53.354.752.459.059.272.360.459.861.660.661.7
Percentage of Revenues11.28.48.18.78.914.311.512.57.810.811.2
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentPrincipalGlobalInvestors0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentPrincipalInternational


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value101109114116114118123121109105100
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.615.616.619.820.513.720.020.118.718.618.3
Percentage of Revenues3.32.42.62.93.12.73.84.22.43.33.3
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentPrincipalInternational0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentRetirementAndIncomeSolutions


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1531581586661666964656865
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.522.622.911.310.97.711.310.711.212.011.8
Percentage of Revenues4.93.53.61.71.61.52.22.21.42.12.1
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentRetirementAndIncomeSolutions0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentUSInsuranceSolutions


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1416161615141313121213
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.22.42.42.72.81.72.22.22.12.22.4
Percentage of Revenues0.50.40.40.40.40.30.40.50.30.40.4
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentUSInsuranceSolutions0.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, pfg:SegmentRetirementAndIncomeSolutions, pfg:SubsegmentRetirementAndIncomeSolutionsFee


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1511561566358636661636562
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.122.322.510.910.47.410.910.210.811.611.4
Percentage of Revenues4.93.43.51.61.61.52.12.11.42.12.1
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentRetirementAndIncomeSolutions pfg:SubsegmentRetirementAndIncomeSolutionsFee0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentRetirementAndIncomeSolutions, pfg:SubsegmentRetirementAndIncomeSolutionsSpread


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value22222222222
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.30.40.50.30.40.40.40.40.5
Percentage of Revenues0.10.00.10.10.10.10.10.10.10.10.1
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentRetirementAndIncomeSolutions pfg:SubsegmentRetirementAndIncomeSolutionsSpread0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentUSInsuranceSolutions, pfg:SubsegmentIndividualLifeInsurance


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value11121212121199899
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.71.81.82.12.11.31.61.61.51.61.8
Percentage of Revenues0.40.30.30.30.30.30.30.30.20.30.3
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentUSInsuranceSolutions pfg:SubsegmentIndividualLifeInsurance0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentUSInsuranceSolutions, pfg:SubsegmentSpecialtyBenefitsInsurance


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value33333333333
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.50.50.60.70.40.60.60.60.60.6
Percentage of Revenues0.10.10.10.10.10.10.10.10.10.10.1
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentUSInsuranceSolutions pfg:SubsegmentSpecialtyBenefitsInsurance0.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, pfg:CorporateAndRegional, pfg:SegmentPrincipalInternational


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value000000000
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.00.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments pfg:CorporateAndRegional pfg:SegmentPrincipalInternational0.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentGeographicalAreaEliminations, pfg:SegmentPrincipalInternational


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value000000000
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.0-0.1-0.0-0.1-0.1-0.1
Percentage of Revenues-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentGeographicalAreaEliminations pfg:SegmentPrincipalInternational0.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, srt:Asia, pfg:SegmentPrincipalInternational


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value272827272726262827
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.24.04.04.74.83.04.34.84.7
Percentage of Revenues0.90.60.60.70.70.60.81.00.6
Percentage of Revenues us-gaap:OperatingSegments srt:Asia pfg:SegmentPrincipalInternational0.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, srt:LatinAmerica, pfg:SegmentPrincipalInternational


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value748187888892969281
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.411.612.615.115.710.715.715.314.0
Percentage of Revenues2.41.82.02.22.42.13.03.21.8
Percentage of Revenues us-gaap:OperatingSegments srt:LatinAmerica pfg:SegmentPrincipalInternational0.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:Revenues



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value3114455140474458397237433770434832342883323746273178304935132818302530362807324032592657290824842606247826722239221021662295270421182095205920882342221923722288223322642232227021572188
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-467-384
Percentage of Revenues-10.3-10.3
Percentage of Revenues-10.3-10.3
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value928931
Percentage of Revenues20.424.9
Percentage of Revenues20.424.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value40813186
Percentage of Revenues89.785.1
Percentage of Revenues89.785.1
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany100.0100.0
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value810
Percentage of Revenues0.20.3
Percentage of Revenues0.20.3
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value0-1
Percentage of Revenues-0.0-0.0
Percentage of Revenues-0.0-0.0
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value44423730
Percentage of Revenues97.699.6
Percentage of Revenues97.699.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value1004
Percentage of Revenues2.20.1
Percentage of Revenues2.20.1
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate100.0100.0
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value810
Percentage of Revenues0.20.3
Percentage of Revenues0.20.3
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany100.0100.0

Revenues

us-gaap:InvestmentType

us-gaap:RealizedInvestmentGainsLosses

pfg:MortgageLoans


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-03-31
Value0-15000120100102-12-2-121
Percentage of RealizedInvestmentGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.0-0.3-0.00.00.00.00.10.00.00.0-0.00.00.00.1-0.00.1-0.1-0.50.1
Percentage of Revenues pfg:MortgageLoans0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
pfg:OtherInvestmentTypes


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value58-72-72-1249-761291571991428624-2713-10627
Percentage of RealizedInvestmentGainsLosses8285.7463.772500.0-4266.716600.0-5907.75164.03800.059916.79400.0-3700.02050.06700.0100.0-338.5-1173.9-566.788.30.0507.1
Percentage of Revenues1.9-1.6-1.6-0.31.3-1.84.00.515.50.30.51.00.20.10.1-0.80.5-0.42.40.3
Percentage of Revenues pfg:OtherInvestmentTypes0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:Derivative


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value-195290-114541-379-38-103-6-4-2718554-5762-215-11
Percentage of RealizedInvestmentGainsLosses-27957.1-1850.311700.01533.31666.73207.7-1496.02350.0-3175.0-103600.01675.0-350.0-27900.07424.0-4153.8-2504.3-2608.316.70.0-807.1
Percentage of Revenues-6.36.4-0.30.10.11.0-1.20.3-0.8-3.3-0.2-0.2-0.96.11.7-1.82.4-0.10.6-0.5
Percentage of Revenues us-gaap:Derivative0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Realized Investment Gains Losses

us-gaap:PremiumsEarnedNet



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value1153229122741932172421721265995212614521248100212761282155716829168758358037037376947001158681679672751797865868878
Percentage of PremiumsEarnedNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues37.050.351.048.746.150.039.134.545.945.740.935.642.242.248.051.634.535.332.032.431.433.332.130.542.832.232.432.232.135.937.838.938.8

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value145182
Percentage of PremiumsEarnedNet6.410.6
Percentage of Revenues3.24.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther15.719.6
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value21451542
Percentage of PremiumsEarnedNet93.689.4
Percentage of Revenues47.141.2
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany52.648.4

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value22911724
Percentage of PremiumsEarnedNet100.0100.0
Percentage of Revenues50.346.1
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate51.646.2

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, pfg:SegmentPrincipalInternational


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value28851151091175510197435552
Percentage of PremiumsEarnedNet2.53.75.15.76.82.68.09.82.03.84.2
Percentage of Revenues0.91.92.62.83.11.33.13.40.91.71.7
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentPrincipalInternational0.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, pfg:SegmentRetirementAndIncomeSolutions, pfg:SubsegmentRetirementAndIncomeSolutionsFee


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value01101101001
Percentage of PremiumsEarnedNet0.10.10.00.00.10.10.10.20.00.00.1
Percentage of Revenues0.00.00.00.00.00.00.00.10.00.00.0
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentRetirementAndIncomeSolutions pfg:SubsegmentRetirementAndIncomeSolutionsFee0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentRetirementAndIncomeSolutions, pfg:SubsegmentRetirementAndIncomeSolutionsSpread


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value45915211499117195714955552881495814623
Percentage of PremiumsEarnedNet39.866.465.960.655.568.943.929.070.356.050.0
Percentage of Revenues14.833.433.629.525.634.417.210.032.325.620.4
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentRetirementAndIncomeSolutions pfg:SubsegmentRetirementAndIncomeSolutionsSpread0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentUSInsuranceSolutions, pfg:SubsegmentIndividualLifeInsurance


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value8194797992808090819292
Percentage of PremiumsEarnedNet7.14.13.54.15.43.76.49.13.86.47.4
Percentage of Revenues2.62.11.82.02.51.92.53.11.82.93.0
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentUSInsuranceSolutions pfg:SubsegmentIndividualLifeInsurance0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentUSInsuranceSolutions, pfg:SubsegmentSpecialtyBenefitsInsurance


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value582588579571555539527517505490478
Percentage of PremiumsEarnedNet50.525.725.529.632.224.841.751.923.833.738.4
Percentage of Revenues18.712.913.014.414.812.416.317.910.915.415.7
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentUSInsuranceSolutions pfg:SubsegmentSpecialtyBenefitsInsurance0.00.00.00.00.00.00.00.00.00.00.0

Premiums Earned Net

us-gaap:NetInvestmentIncome



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value9449839961037961919889902838866877856799761753789723770829844784749789845783801824815873859880877863
Percentage of NetInvestmentIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues30.321.622.426.125.721.127.531.318.127.328.830.426.425.123.224.227.231.031.834.135.033.936.436.829.037.839.439.037.338.738.539.338.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-365-292
Percentage of NetInvestmentIncome-37.2-30.4
Percentage of Revenues-8.0-7.8
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor78.376.1
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value622546
Percentage of NetInvestmentIncome63.356.8
Percentage of Revenues13.714.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther67.158.6
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value723702
Percentage of NetInvestmentIncome73.573.1
Percentage of Revenues15.918.8
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany17.722.0
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value35
Percentage of NetInvestmentIncome0.30.5
Percentage of Revenues0.10.1
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany39.548.5

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value21
Percentage of NetInvestmentIncome0.30.2
Percentage of Revenues0.10.0
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor-2500.0-150.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value978956
Percentage of NetInvestmentIncome99.599.5
Percentage of Revenues21.525.5
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate22.025.6
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value-1-2
Percentage of NetInvestmentIncome-0.1-0.2
Percentage of Revenues-0.0-0.1
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate-1.1-52.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value35
Percentage of NetInvestmentIncome0.30.5
Percentage of Revenues0.10.1
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany39.548.5

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, pfg:SegmentCorporate


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1752191934222434231727
Percentage of NetInvestmentIncome1.85.31.91.93.62.52.83.82.82.03.1
Percentage of Revenues0.51.20.40.50.90.50.81.20.50.50.9
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentCorporate0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentPrincipalGlobalInvestors


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value02222111011
Percentage of NetInvestmentIncome0.10.20.20.30.20.10.10.20.10.20.1
Percentage of Revenues0.00.10.00.10.10.00.00.10.00.00.0
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentPrincipalGlobalInvestors0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentPrincipalInternational


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value144104172184146112163162120156166
Percentage of NetInvestmentIncome15.310.617.317.815.212.218.318.014.418.119.0
Percentage of Revenues4.62.33.94.63.92.65.05.62.64.95.5
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentPrincipalInternational0.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, pfg:SegmentRetirementAndIncomeSolutions, pfg:SubsegmentRetirementAndIncomeSolutionsFee


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value10210410110499116106110108113119
Percentage of NetInvestmentIncome10.810.610.210.110.412.611.912.213.013.113.6
Percentage of Revenues3.32.32.32.62.72.73.33.82.33.63.9
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentRetirementAndIncomeSolutions pfg:SubsegmentRetirementAndIncomeSolutionsFee0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentRetirementAndIncomeSolutions, pfg:SubsegmentRetirementAndIncomeSolutionsSpread


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value506536509531495467433428413411402
Percentage of NetInvestmentIncome53.654.551.151.251.650.848.747.549.447.545.9
Percentage of Revenues16.311.811.413.413.210.813.414.98.913.013.2
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentRetirementAndIncomeSolutions pfg:SubsegmentRetirementAndIncomeSolutionsSpread0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentUSInsuranceSolutions, pfg:SubsegmentIndividualLifeInsurance


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value176166178179169167162161161163157
Percentage of NetInvestmentIncome18.717.017.917.317.618.218.317.919.318.818.0
Percentage of Revenues5.73.74.04.54.53.95.05.63.55.15.2
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentUSInsuranceSolutions pfg:SubsegmentIndividualLifeInsurance0.00.00.00.00.00.00.00.00.00.00.0
us-gaap:OperatingSegments, pfg:SegmentUSInsuranceSolutions, pfg:SubsegmentSpecialtyBenefitsInsurance


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value3641424537443540363840
Percentage of NetInvestmentIncome3.94.34.24.43.94.94.04.54.34.44.7
Percentage of Revenues1.20.90.91.21.01.01.11.40.81.21.3
Percentage of Revenues us-gaap:OperatingSegments pfg:SegmentUSInsuranceSolutions pfg:SubsegmentSpecialtyBenefitsInsurance0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:InterestRateContract, us-gaap:CashFlowHedging, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value44545555
Percentage of NetInvestmentIncome0.50.50.50.50.50.60.60.6
Percentage of Revenues0.20.10.10.10.10.10.20.2
Percentage of Revenues us-gaap:InterestRateContract us-gaap:CashFlowHedging us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.0

Net Investment Income

us-gaap:GainLossOnInvestments



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value-27131-42-484-567-25676-95-16443313638-11466-46860-50-80-5032870-6-3037-58-20-66-45
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.92.9-1.0-0.12.3-0.12.1-0.914.6-3.0-0.51.61.14.51.2-3.52.5-1.93.30.0-2.3-3.6-2.31.43.20.0-0.3-1.51.6-2.6-0.9-3.0-2.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Period End2020-06-302020-03-312019-06-302018-09-302018-06-302018-03-31
Value429200
Percentage of GainLossOnInvestments-14.61.7-237.5-41.80.91.6
Percentage of Revenues0.10.00.20.10.0-0.0
Percentage of Revenues us-gaap:ForeignExchangeContract us-gaap:CashFlowHedging us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.0
us-gaap:InterestRateContract, us-gaap:CashFlowHedging, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Period End2020-06-302020-03-31
Value3-1
Percentage of GainLossOnInvestments-14.2-1.0
Percentage of Revenues0.1-0.0
Percentage of Revenues us-gaap:InterestRateContract us-gaap:CashFlowHedging us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.0

Gain Loss On Investments

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value160128582840244621952642169914112504185816571482165916581869205412361113126812271096109510941154164711101212113110131191132013371275
Percentage of PolicyholderBenefitsAndClaimsIncurredNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues51.462.863.761.658.660.852.548.954.158.554.352.654.954.657.763.046.544.848.749.548.949.650.550.360.952.457.954.243.353.757.759.956.3

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-2-2
Percentage of PolicyholderBenefitsAndClaimsIncurredNet-0.1-0.1
Percentage of Revenues-0.1-0.1
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor0.60.8
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value228253
Percentage of PolicyholderBenefitsAndClaimsIncurredNet8.011.6
Percentage of Revenues5.06.8
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther24.627.2
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value26331944
Percentage of PolicyholderBenefitsAndClaimsIncurredNet92.188.6
Percentage of Revenues57.951.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany64.561.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value28582195
Percentage of PolicyholderBenefitsAndClaimsIncurredNet100.0100.0
Percentage of Revenues62.858.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate64.358.8

Policyholder Benefits And Claims Incurred Net

us-gaap:BenefitsLossesAndExpenses



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value2616422336754112352232173527377927192426292234702812263531322447262525962498287129642199259020902199210223621919194519382030252318831818186519501969193621082125207520072062202219592058
Percentage of BenefitsLossesAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues84.092.890.892.288.786.093.686.984.184.290.375.088.586.489.186.886.885.589.088.691.082.889.184.184.484.888.485.788.089.588.493.388.986.890.693.484.187.288.992.992.988.792.489.190.894.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-96-90
Percentage of BenefitsLossesAndExpenses-2.3-2.8
Percentage of Revenues-2.1-2.4
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor20.723.4
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value806691
Percentage of BenefitsLossesAndExpenses19.121.5
Percentage of Revenues17.718.5
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther86.974.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value34642560
Percentage of BenefitsLossesAndExpenses82.079.6
Percentage of Revenues76.168.4
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany84.980.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value4856
Percentage of BenefitsLossesAndExpenses1.11.7
Percentage of Revenues1.11.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany564.0544.7

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value-2-2
Percentage of BenefitsLossesAndExpenses-0.1-0.1
Percentage of Revenues-0.0-0.1
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor2200.0225.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value40433141
Percentage of BenefitsLossesAndExpenses95.797.6
Percentage of Revenues88.883.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate91.084.2
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value13322
Percentage of BenefitsLossesAndExpenses3.20.7
Percentage of Revenues2.90.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate133.5518.2
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value4856
Percentage of BenefitsLossesAndExpenses1.11.7
Percentage of Revenues1.11.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany564.0544.7

Benefits Losses And Expenses

us-gaap:IncomeTaxExpenseBenefit



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value824361587310955543445060437270682929141885261293834-95058718260121352
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.60.91.41.52.02.51.71.97.41.62.01.52.42.32.10.91.15.73.42.12.71.31.81.5-0.42.42.83.43.52.70.50.62.3

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value-51-9
Percentage of IncomeTaxExpenseBenefit-118.8-13.3
Percentage of Revenues-1.1-0.3
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther-5.5-1.1
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value10495
Percentage of IncomeTaxExpenseBenefit242.6128.8
Percentage of Revenues2.32.5
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany2.63.0
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value-10-11
Percentage of IncomeTaxExpenseBenefit-23.4-15.3
Percentage of Revenues-0.2-0.3
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany-117.4-109.7

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value6884
Percentage of IncomeTaxExpenseBenefit158.6113.7
Percentage of Revenues1.52.2
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate1.52.3
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value-151
Percentage of IncomeTaxExpenseBenefit-35.21.6
Percentage of Revenues-0.30.0
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate-15.227.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value-10-11
Percentage of IncomeTaxExpenseBenefit-23.4-15.3
Percentage of Revenues-0.2-0.3
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany-117.4-109.7

Income Tax Expense Benefit

us-gaap:ProfitLoss



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value41628531528439245223146045940284281331435333832732736925830026442928025231932425025923619023019118421817166289223218151144203154204164122
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues13.46.37.86.49.912.16.110.614.214.026.017.69.911.69.611.610.812.29.29.38.116.19.610.212.213.19.411.610.78.810.07.18.710.48.33.212.410.19.26.66.59.06.99.07.65.6

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-686-755
Percentage of ProfitLoss-240.8-167.2
Percentage of Revenues-15.1-20.2
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor146.9196.7
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value312482
Percentage of ProfitLoss109.7106.8
Percentage of Revenues6.912.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther33.751.8
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value369295
Percentage of ProfitLoss129.765.3
Percentage of Revenues8.17.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany9.19.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value288429
Percentage of ProfitLoss101.495.1
Percentage of Revenues6.311.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany3359.34173.8

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value-651-945
Percentage of ProfitLoss-228.6-209.1
Percentage of Revenues-14.3-25.3
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor651500.078783.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value331504
Percentage of ProfitLoss116.1111.6
Percentage of Revenues7.313.5
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate7.513.5
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value316462
Percentage of ProfitLoss111.1102.4
Percentage of Revenues7.012.4
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate316.310520.5
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value288429
Percentage of ProfitLoss101.495.1
Percentage of Revenues6.311.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany3359.34173.8

Profit Loss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value16-294-1572837-22-2366588-164-1614129-263-42-132-195
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.5-6.5-3.50.71.0-0.5-7.32.31.9-0.12.1-0.60.54.3-8.1-1.3-5.0-7.9

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

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value2448-134893614521576248-212-339973648569419659903103-9340629552480236-390167518243439-199400449
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues78.6-29.621.036.642.15.7-6.6-11.821.020.418.714.921.829.83.2-2.915.31.221.219.410.6-17.77.719.211.521.0-9.517.120.2

Comprehensive Income Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value2048-164665610721146-208-672-736165338221110339539-211-349-22-225239176-18-629-2033161225-279175
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues65.8-36.214.727.030.6-4.8-20.8-25.53.610.77.33.911.217.8-6.5-10.7-0.8-9.19.27.1-0.8-28.5-0.912.22.910.7-13.47.5

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value2793-2222
Percentage of OtherComprehensiveIncomeLossNetOfTax-169.7-193.8
Percentage of Revenues61.4-59.4
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor-598.2578.5
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value-16111174
Percentage of OtherComprehensiveIncomeLossNetOfTax97.9102.4
Percentage of Revenues-35.431.4
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther-173.6126.1
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value-12841053
Percentage of OtherComprehensiveIncomeLossNetOfTax78.091.9
Percentage of Revenues-28.228.1
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany-31.533.1
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value-15431141
Percentage of OtherComprehensiveIncomeLossNetOfTax93.799.5
Percentage of Revenues-33.930.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany-17946.511080.6

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value3133-2250
Percentage of OtherComprehensiveIncomeLossNetOfTax-190.3-196.2
Percentage of Revenues68.9-60.1
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor-3133600.0187516.7
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value-16781128
Percentage of OtherComprehensiveIncomeLossNetOfTax102.098.4
Percentage of Revenues-36.930.1
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate-37.830.3
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value-15571126
Percentage of OtherComprehensiveIncomeLossNetOfTax94.698.3
Percentage of Revenues-34.230.1
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate-1556.225611.4
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value-15431141
Percentage of OtherComprehensiveIncomeLossNetOfTax93.799.5
Percentage of Revenues-33.930.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany-17946.511080.6

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value10111057118884448881112123
Percentage of OtherComprehensiveIncomeLossNetOfTax0.5-0.71.55.31.0-4.2-1.3-1.22.51.31.97.22.41.5-5.6-3.4-54.1-1.6
Percentage of Revenues0.30.20.21.40.30.20.30.30.10.10.10.30.30.30.40.40.50.1
Percentage of Revenues us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value16-294-1572837-22-2366588-164-1614129-263-42-132-195
Percentage of OtherComprehensiveIncomeLossNetOfTax0.817.9-24.02.73.311.035.1-8.953.7-0.529.1-14.54.224.1124.312.2597.386.7
Percentage of Revenues0.5-6.5-3.50.71.0-0.5-7.32.31.9-0.12.1-0.60.54.3-8.1-1.3-5.0-7.9
Percentage of Revenues us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value-1648121-4
Percentage of OtherComprehensiveIncomeLossNetOfTax-0.8-3.01.90.1-0.4
Percentage of Revenues-0.51.10.30.0-0.1
Percentage of Revenues us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest0.00.00.00.00.0
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value2037-14117879841104-199-466-8057033516312030340428-30657-73
Percentage of OtherComprehensiveIncomeLossNetOfTax99.585.7119.991.896.395.469.3109.442.598.974.1108.789.475.0-13.487.6-257.232.7
Percentage of Revenues65.4-31.017.724.829.5-4.6-14.4-27.91.510.55.44.310.013.30.9-9.42.1-3.0
Percentage of Revenues us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value16-13411223065551874-1380-26204-224210-52318
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.5-0.30.10.30.60.1-0.00.20.10.20.20.70.20.2-0.40.30.0-0.10.20.80.2-0.10.10.20.10.5-0.31.00.8

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value2464-136194014641598251-212-33397865357443866690889-8440626558500241-393169522245449-223463476953370657
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues79.1-29.921.136.942.75.8-6.6-11.621.120.618.815.522.029.92.8-2.615.31.121.420.210.8-17.87.819.311.621.5-10.719.821.541.716.629.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value2107-2978
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest-154.8-186.3
Percentage of Revenues46.3-79.6
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor-451.2775.2
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value-12991656
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest95.4103.6
Percentage of Revenues-28.544.3
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther-139.9177.9
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value-9151349
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest67.284.4
Percentage of Revenues-20.136.0
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany-22.442.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value-12541571
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest92.298.3
Percentage of Revenues-27.642.0
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany-14587.215254.4

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value2482-3195
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest-182.3-199.9
Percentage of Revenues54.5-85.4
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor-2482100.0266300.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value-13471633
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest99.0102.2
Percentage of Revenues-29.643.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate-30.343.8
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value-12411589
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest91.299.4
Percentage of Revenues-27.342.5
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate-1240.036131.8
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value-12541571
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest92.298.3
Percentage of Revenues-27.642.0
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany-14587.215254.4

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:NetIncomeLoss



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value39828830027738642923645645639784181030934830832236830025742224831430125323018622318718120971266204150142199
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues12.86.37.46.29.711.56.310.514.113.826.017.59.711.410.910.712.19.37.915.910.012.112.211.310.48.69.76.98.610.03.411.49.26.66.48.8

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-686-758
Percentage of NetIncomeLoss-237.5-176.4
Percentage of Revenues-15.1-20.3
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor146.9197.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value316462
Percentage of NetIncomeLoss109.6107.7
Percentage of Revenues7.012.4
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther34.149.7
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value369295
Percentage of NetIncomeLoss127.968.7
Percentage of Revenues8.17.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany9.19.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value288429
Percentage of NetIncomeLoss100.0100.0
Percentage of Revenues6.311.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany3359.34173.8

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value-651-945
Percentage of NetIncomeLoss-225.5-219.9
Percentage of Revenues-14.3-25.3
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor651500.078783.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value334482
Percentage of NetIncomeLoss115.9112.2
Percentage of Revenues7.412.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate7.512.9
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value316462
Percentage of NetIncomeLoss109.6107.7
Percentage of Revenues7.012.4
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate316.310520.5
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value288429
Percentage of NetIncomeLoss100.0100.0
Percentage of Revenues6.311.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany3359.34173.8

Net Income Loss

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value39828827738642945645639784181030934831830832236825330024141427024030629323324522217821817917320116463258196199142134190141184150112
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues12.86.36.29.711.510.514.113.826.017.59.711.49.110.910.712.19.09.37.415.69.39.711.811.88.711.010.18.29.56.68.29.68.03.011.08.88.46.26.08.46.48.17.05.2

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value17-37522325354194107634225633329-52318014
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.6-0.10.20.10.60.10.10.20.10.20.20.70.20.00.00.20.30.20.20.90.20.30.20.20.10.10.4-0.31.00.80.00.10.2

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value-319
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.089.2
Percentage of Revenues-0.10.5
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther-0.42.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value-322
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0
Percentage of Revenues-0.10.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate-0.10.6

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:Assets



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value271309246903276087270238267918259419243036258758252104253636253941247933240153235496228014230367223074217570218685215365222270222494219087216422218322211193208191201687196512200762161926159193152050153738148298143302149278147549145631137759
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidatedEntities

pfg:VariableInterestEntityPrimaryBeneficiaryGrantorTrusts


Period End2020-03-312019-12-312018-12-31
Value359995
Percentage of Assets0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets pfg:VariableInterestEntityPrimaryBeneficiaryGrantorTrusts100.0100.0100.0
pfg:VariableInterestEntityPrimaryBeneficiaryMandatoryRetirementSavings


Period End2020-06-302020-03-312019-12-312018-12-31
Value36849315353989137915
Percentage of Assets13.612.814.415.6
Percentage of Assets13.612.814.415.6
Percentage of Assets pfg:VariableInterestEntityPrimaryBeneficiaryMandatoryRetirementSavings100.0100.0100.0100.0
pfg:VariableInterestEntityPrimaryBeneficiaryRealEstate


Period End2020-06-302020-03-312019-12-312018-12-31
Value452421479379
Percentage of Assets0.20.20.20.2
Percentage of Assets0.20.20.20.2
Percentage of Assets pfg:VariableInterestEntityPrimaryBeneficiaryRealEstate100.0100.0100.0100.0
pfg:VariableInterestEntityPrimaryBeneficiarySponsoredInvestmentFunds


Period End2020-06-302020-03-312019-12-312018-12-31
Value363339331526
Percentage of Assets0.10.10.10.2
Percentage of Assets0.10.10.10.2
Percentage of Assets pfg:VariableInterestEntityPrimaryBeneficiarySponsoredInvestmentFunds100.0100.0100.0100.0
us-gaap:VariableInterestEntityPrimaryBeneficiary


Period End2020-06-302020-03-312019-12-312018-12-31
Value37665323314080238922
Percentage of Assets13.913.114.816.0
Percentage of Assets13.913.114.816.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-47587-40449-43120-45553-43680-37364
Percentage of Assets-17.5-16.4-15.6-16.9-16.3-15.4
Percentage of Assets-17.5-16.4-15.6-16.9-16.3-15.4
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value778186735077716796538054471935
Percentage of Assets28.727.328.129.530.129.6
Percentage of Assets28.727.328.129.530.129.6
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value221098202810222628217134212845193360
Percentage of Assets81.582.180.680.379.479.6
Percentage of Assets81.582.180.680.379.479.6
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value199801719218863190031820815104
Percentage of Assets7.47.06.87.06.86.2
Percentage of Assets7.47.06.87.06.86.2
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-37226-32415-36049-36666-35050-30072
Percentage of Assets-13.7-13.1-13.1-13.6-13.1-12.4
Percentage of Assets-13.7-13.1-13.1-13.6-13.1-12.4
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value269082245048274431268779266586242876
Percentage of Assets99.299.299.499.599.599.9
Percentage of Assets99.299.299.499.599.599.9
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value194721707818841191211817415126
Percentage of Assets7.26.96.87.16.86.2
Percentage of Assets7.26.96.87.16.86.2
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value199801719218863190031820815104
Percentage of Assets7.47.06.87.06.86.2
Percentage of Assets7.47.06.87.06.86.2
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

pfg:SegmentCorporate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value29302359349945025478520248124528446645085083480740214130507847894773455643814172416741334276372640643840386532983381349849604257398437573529380143334947
Percentage of Assets1.11.01.31.72.02.02.01.81.81.82.01.91.71.82.22.12.12.12.01.91.91.92.01.71.91.81.91.61.71.73.12.72.62.42.42.72.93.4
Percentage of Assets1.11.01.31.72.02.02.01.81.81.82.01.91.71.82.22.12.12.12.01.91.91.92.01.71.91.81.91.61.71.73.12.72.62.42.42.72.93.4
Percentage of Assets pfg:SegmentCorporate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
pfg:SegmentPrincipalGlobalInvestors


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value21972173236322382312229623012362228922342322241723921866195219501853179218801149111210941175120011831165131212731255120712821265121817951833161514591308
Percentage of Assets0.80.90.90.80.90.90.90.90.90.90.91.01.00.80.90.80.80.80.90.50.50.50.50.60.50.60.60.60.60.60.80.80.81.21.21.11.00.9
Percentage of Assets0.80.90.90.80.90.90.90.90.90.90.91.01.00.80.90.80.80.80.90.50.50.50.50.60.50.60.60.60.60.60.80.80.81.21.21.11.00.9
Percentage of Assets pfg:SegmentPrincipalGlobalInvestors100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
pfg:SegmentPrincipalInternational


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value4538139445488574892751285494774670149706494725292351684497044747647440451184674645249445235058850458528655362853531569745714454191542435315853637561221926718849172291724815662153661364012774
Percentage of Assets16.716.017.718.119.119.119.219.219.620.920.420.019.820.119.820.320.320.523.123.423.824.124.426.326.225.726.126.427.328.011.911.811.311.210.610.79.18.8
Percentage of Assets16.716.017.718.119.119.119.219.219.620.920.420.019.820.119.820.320.320.523.123.423.824.124.426.326.225.726.126.427.328.011.911.811.311.210.610.79.18.8
Percentage of Assets pfg:SegmentPrincipalInternational100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
pfg:SegmentRetirementAndIncomeSolutions


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value191053174996192698186731181663176073163833176653170608168851169757166508162151158505152721153275148097144101139678137860
Percentage of Assets70.470.969.869.167.867.967.468.367.766.666.867.267.567.367.066.566.466.263.962.9
Percentage of Assets70.470.969.869.167.867.967.468.367.766.666.867.267.567.367.066.566.466.263.962.9
Percentage of Assets pfg:SegmentRetirementAndIncomeSolutions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
pfg:SegmentUSInsuranceSolutions


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2974527928286692783827178263702538825507252662511825092244962411223553231442360623101225962215622180220712206821554212152102220602200331975419472195181901718682180821766917790173181721616558
Percentage of Assets11.011.310.410.310.110.210.49.910.09.99.99.910.010.010.210.210.410.410.110.39.99.99.89.89.69.89.69.89.99.711.711.711.911.512.012.111.511.4
Percentage of Assets11.011.310.410.310.110.210.49.910.09.99.99.910.010.010.210.210.410.410.110.39.99.99.89.89.69.89.69.89.99.711.711.711.911.512.012.111.511.4
Percentage of Assets pfg:SegmentUSInsuranceSolutions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Liabilities



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value255725233691261137254996253511246120231188246841240258241252240918235737228820224716217623219313212169207199209222205601212436211937208797205997207580200855198167192079187050190877152092149286142555143986138285133012138610137176135746129743
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets94.394.694.694.494.694.995.195.495.395.194.995.195.395.495.495.295.195.295.795.595.695.395.395.295.195.195.295.295.295.193.993.893.893.793.292.892.993.093.294.2

us-gaap:ConsolidatedEntities

pfg:VariableInterestEntityPrimaryBeneficiaryGrantorTrusts


Period End2020-03-312019-12-312018-12-31
Value349889
Percentage of Liabilities0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets pfg:VariableInterestEntityPrimaryBeneficiaryGrantorTrusts98.998.794.1
pfg:VariableInterestEntityPrimaryBeneficiaryMandatoryRetirementSavings


Period End2020-06-302020-03-312019-12-312018-12-31
Value36454312563952437579
Percentage of Liabilities14.313.415.116.3
Percentage of Assets13.412.714.315.5
Percentage of Assets pfg:VariableInterestEntityPrimaryBeneficiaryMandatoryRetirementSavings98.999.199.199.1
pfg:VariableInterestEntityPrimaryBeneficiaryRealEstate


Period End2020-06-302020-03-312019-12-312018-12-31
Value29268870
Percentage of Liabilities0.00.00.00.0
Percentage of Assets0.00.00.00.0
Percentage of Assets pfg:VariableInterestEntityPrimaryBeneficiaryRealEstate6.66.418.318.6
pfg:VariableInterestEntityPrimaryBeneficiarySponsoredInvestmentFunds


Period End2020-06-302020-03-312019-12-312018-12-31
Value8823
Percentage of Liabilities0.00.00.00.0
Percentage of Assets0.00.00.00.0
Percentage of Assets pfg:VariableInterestEntityPrimaryBeneficiarySponsoredInvestmentFunds2.32.40.70.7
us-gaap:VariableInterestEntityPrimaryBeneficiary


Period End2020-06-302020-03-312019-12-312018-12-31
Value36492313263971337742
Percentage of Liabilities14.313.415.216.3
Percentage of Assets13.512.714.415.5
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary96.996.997.397.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-17349-14767-14353-16149-16303-14800
Percentage of Liabilities-6.8-6.3-5.5-6.3-6.4-6.4
Percentage of Assets-6.4-6.0-5.2-6.0-6.1-6.1
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor36.536.533.335.537.339.6
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value594365139959982614976358257745
Percentage of Liabilities23.222.023.024.125.125.0
Percentage of Assets21.920.821.722.823.723.8
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther76.476.377.277.278.980.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value208901192774211262205449202059184529
Percentage of Liabilities81.782.580.980.679.779.8
Percentage of Assets77.078.176.576.075.475.9
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany94.595.194.994.694.995.4
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value473742844245419941733714
Percentage of Liabilities1.91.81.61.61.61.6
Percentage of Assets1.71.71.51.61.61.5
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany23.724.922.522.122.924.6

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-1735-1742-1840-1660-1939-1678
Percentage of Liabilities-0.7-0.7-0.7-0.7-0.8-0.7
Percentage of Assets-0.6-0.7-0.7-0.6-0.7-0.7
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor4.75.45.14.55.55.6
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value251293229717257292251054249694227759
Percentage of Liabilities98.398.398.598.598.598.5
Percentage of Assets92.693.093.292.993.293.7
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate93.493.793.893.493.793.8
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value143014321440140315831393
Percentage of Liabilities0.60.60.60.60.60.6
Percentage of Assets0.50.60.50.50.60.6
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate7.38.47.67.38.79.2
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value473742844245419941733714
Percentage of Liabilities1.91.81.61.61.61.6
Percentage of Assets1.71.71.51.61.61.5
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany23.724.922.522.122.924.6

Liabilities

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value271309246903276087270238267918259419243036258758252104253636253941247933240153235496228014230367223074217570218685215365222270222494219087216422218322211193208191201687196512200762161926159193152050153738148298143302149278147549145631137759
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-47587-40449-43120-45553-43680-37364
Percentage of LiabilitiesAndStockholdersEquity-17.5-16.4-15.6-16.9-16.3-15.4
Percentage of Assets-17.5-16.4-15.6-16.9-16.3-15.4
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value778186735077716796538054471935
Percentage of LiabilitiesAndStockholdersEquity28.727.328.129.530.129.6
Percentage of Assets28.727.328.129.530.129.6
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value221098202810222628217134212845193360
Percentage of LiabilitiesAndStockholdersEquity81.582.180.680.379.479.6
Percentage of Assets81.582.180.680.379.479.6
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value199801719218863190031820815104
Percentage of LiabilitiesAndStockholdersEquity7.47.06.87.06.86.2
Percentage of Assets7.47.06.87.06.86.2
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-37226-32415-36049-36666-35050-30072
Percentage of LiabilitiesAndStockholdersEquity-13.7-13.1-13.1-13.6-13.1-12.4
Percentage of Assets-13.7-13.1-13.1-13.6-13.1-12.4
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value269082245048274431268779266586242876
Percentage of LiabilitiesAndStockholdersEquity99.299.299.499.599.599.9
Percentage of Assets99.299.299.499.599.599.9
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value194721707818841191211817415126
Percentage of LiabilitiesAndStockholdersEquity7.26.96.87.16.86.2
Percentage of Assets7.26.96.87.16.86.2
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate100.0100.0100.0100.0100.0100.0
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value199801719218863190031820815104
Percentage of LiabilitiesAndStockholdersEquity7.47.06.87.06.86.2
Percentage of Assets7.47.06.87.06.86.2
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany100.0100.0100.0100.0100.0100.0

Liabilities And Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1524312907146181480414034126941139011700116391218612849119961116810616102271079410499100419311962096931042210184103161040199879684927893039723975398279422936496379980104021018797277893
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.65.25.35.55.24.94.74.54.64.85.14.84.74.54.54.74.74.64.34.54.44.74.64.84.84.74.74.64.74.86.06.26.26.16.57.07.06.96.75.7

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-30238-25682-28766-29403-27377-22563
Percentage of StockholdersEquity-198.4-199.0-196.8-198.6-195.1-198.1
Percentage of Assets-11.1-10.4-10.4-10.9-10.2-9.3
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor63.563.566.764.562.760.4
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value180411564617401177181659013733
Percentage of StockholdersEquity118.4121.2119.0119.7118.2120.6
Percentage of Assets6.66.36.36.66.25.7
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther23.223.222.422.220.619.1
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value12197100351136511685107868830
Percentage of StockholdersEquity80.077.877.878.976.977.5
Percentage of Assets4.54.14.14.34.03.6
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany5.54.95.15.45.14.6
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value152431290714618148041403411390
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0
Percentage of Assets5.65.25.35.55.24.7
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany76.375.177.577.977.175.4

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-35490-30672-34208-35006-33110-28393
Percentage of StockholdersEquity-232.8-237.6-234.0-236.5-235.9-249.3
Percentage of Assets-13.1-12.4-12.4-13.0-12.4-11.7
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor95.394.694.995.594.594.4
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value174481502616806172871651914659
Percentage of StockholdersEquity114.5116.4115.0116.8117.7128.7
Percentage of Assets6.46.16.16.46.26.0
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate6.56.16.16.46.26.0
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value180421564617401177181659113733
Percentage of StockholdersEquity118.4121.2119.0119.7118.2120.6
Percentage of Assets6.76.36.36.66.25.7
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate92.791.692.492.791.390.8
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value152431290714618148041403411390
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0
Percentage of Assets5.65.25.35.55.24.7
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany76.375.177.577.977.175.4

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value-414-424-435-434-444-501-512-425-434-443-371-395-399-404-408-426-434-442-450-375-387-399-411-145-148-155-488
Percentage of StockholdersEquity-2.7-3.3-3.0-2.9-3.2-3.9-4.5-3.6-3.7-3.6-2.9-3.3-3.6-3.8-4.0-3.9-4.1-4.4-4.8-3.9-4.0-3.8-4.0-1.4-1.4-1.6-5.0
Percentage of Assets-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.3
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value851025374615964
Percentage of StockholdersEquity0.60.80.40.50.40.50.6
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.0
us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value33881350280630662279129419024844791414701400133099583115601439113673298195312591202117412488781418
Percentage of StockholdersEquity22.210.519.220.716.210.21.72.13.87.511.411.711.99.48.114.513.711.37.910.29.812.111.811.412.09.114.5
Percentage of Assets1.20.51.01.10.90.50.10.10.20.40.60.60.60.40.40.70.60.50.30.50.40.60.50.50.60.40.9
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:AccumulatedOtherComprehensiveIncome


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value1450-59910371307647-418-1565-1347-1137-46916547-116-455-67591-19-356-882-524-3262850380599183640
Percentage of StockholdersEquity9.5-4.67.18.84.6-3.3-13.7-11.5-9.8-3.91.30.4-1.0-4.3-6.60.9-0.2-3.5-9.5-5.5-3.40.30.53.75.81.96.6
Percentage of Assets0.5-0.20.40.50.2-0.2-0.6-0.5-0.5-0.20.10.0-0.0-0.2-0.30.0-0.0-0.2-0.4-0.2-0.10.00.00.20.30.10.4
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:AccumulatedTranslationAdjustment


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value-1608-1627-1341-1353-1198-1222-1259-1166-1142-909-918-945-1031-1030-1093-1035-1019-1031-1148-1116-867-819-686-563-373-361-106
Percentage of StockholdersEquity-10.6-12.6-9.2-9.1-8.5-9.6-11.1-10.0-9.8-7.5-7.1-7.9-9.2-9.7-10.7-9.6-9.7-10.3-12.3-11.6-8.9-7.9-6.7-5.5-3.6-3.7-1.1
Percentage of Assets-0.6-0.7-0.5-0.5-0.4-0.5-0.5-0.5-0.5-0.4-0.4-0.4-0.4-0.4-0.5-0.4-0.5-0.5-0.5-0.5-0.4-0.4-0.3-0.3-0.2-0.2-0.1
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Stockholders Equity

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value315034822515319833152259297729262342233524702795200615342719221822552142256425142264145218631270174213932371170711101661417722791646165128331434216919841877226818271629224026081344
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.40.91.21.20.91.21.10.90.91.01.10.80.71.21.01.01.01.21.21.00.70.90.60.80.71.10.80.60.82.61.41.11.11.91.01.51.31.30.00.00.01.60.00.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-903-861-824-680-863-696
Percentage of CashAndCashEquivalentsAtCarryingValue-28.7-24.7-32.8-21.3-26.0-23.4
Percentage of Assets-0.3-0.3-0.3-0.3-0.3-0.3
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor1.92.11.91.52.01.9
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value193019821767176827582014
Percentage of CashAndCashEquivalentsAtCarryingValue61.356.970.355.383.267.7
Percentage of Assets0.70.80.60.71.00.8
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther2.52.92.32.23.42.8
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value16691908117818088051323
Percentage of CashAndCashEquivalentsAtCarryingValue53.054.846.856.624.344.5
Percentage of Assets0.60.80.40.70.30.5
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany0.80.90.50.80.40.7
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value454453394301615334
Percentage of CashAndCashEquivalentsAtCarryingValue14.413.015.79.418.611.2
Percentage of Assets0.20.20.10.10.20.1
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany2.32.62.11.63.42.2

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-1082-1043-1133-1059-1268-1103
Percentage of CashAndCashEquivalentsAtCarryingValue-34.3-29.9-45.1-33.1-38.2-37.1
Percentage of Assets-0.4-0.4-0.4-0.4-0.5-0.5
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor2.93.23.12.93.63.7
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value305434082656336423653096
Percentage of CashAndCashEquivalentsAtCarryingValue96.997.9105.6105.271.3104.0
Percentage of Assets1.11.41.01.20.91.3
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate1.11.41.01.30.91.3
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value7236635985921603649
Percentage of CashAndCashEquivalentsAtCarryingValue23.019.123.818.548.321.8
Percentage of Assets0.30.30.20.20.60.3
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate3.73.93.23.18.84.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value454453394301615334
Percentage of CashAndCashEquivalentsAtCarryingValue14.413.015.79.418.611.2
Percentage of Assets0.20.20.10.10.20.1
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany2.32.62.11.63.42.2

Cash And Cash Equivalents At Carrying Value

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value993973967961959933767770762775759754750718699674667657633611601607590590574546500479476472464468469457
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.40.40.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.20.20.20.20.30.30.30.3

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value219216233219220106
Percentage of PropertyPlantAndEquipmentNet22.122.224.222.922.913.8
Percentage of Assets0.10.10.10.10.10.0
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther0.30.30.30.30.30.1
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value773757733741739661
Percentage of PropertyPlantAndEquipmentNet77.977.875.877.177.186.2
Percentage of Assets0.30.30.30.30.30.3
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany0.30.40.30.30.30.3

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value993973967961959767
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.40.3
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate0.40.40.40.40.40.3

Property Plant And Equipment Net

us-gaap:Goodwill



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value1630161616931690111111101100112811031096106810551033103210201034103710371009100597098110071034108510751100112711381197543548542490482413345344345386375
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.70.60.60.40.40.50.40.40.40.40.40.40.40.40.40.50.50.50.50.40.40.50.50.50.50.50.60.60.60.30.30.40.30.30.30.20.20.20.30.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value157615621639163610571045
Percentage of Goodwill96.796.696.896.895.195.1
Percentage of Assets0.60.60.60.60.40.4
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther2.02.32.12.11.31.5

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value10129971075107211111100
Percentage of Goodwill62.161.763.563.4100.0100.0
Percentage of Assets0.40.40.40.40.40.5
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate0.40.40.40.40.40.5

Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value170917161786180113001310131513531355139213141314131113221325134613581370135913981268129113231361141814211459149715171590927927934893890872827829834851
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.70.60.70.50.50.50.50.50.50.50.50.50.60.60.60.60.60.60.60.60.60.60.60.60.70.70.70.80.80.60.60.60.60.60.60.60.60.60.6

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value169216991769178312821295
Percentage of IntangibleAssetsNetExcludingGoodwill99.099.099.099.098.698.5
Percentage of Assets0.60.70.60.70.50.5
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther2.22.52.32.21.61.8
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value161717181819
Percentage of IntangibleAssetsNetExcludingGoodwill1.01.01.01.01.41.5
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany0.00.00.00.00.00.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value119111921255126313001315
Percentage of IntangibleAssetsNetExcludingGoodwill69.769.470.270.1100.0100.0
Percentage of Assets0.40.50.50.50.50.5
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate0.40.50.50.50.50.5
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-30
Value517524531538
Percentage of IntangibleAssetsNetExcludingGoodwill30.330.629.829.9
Percentage of Assets0.20.20.20.2
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate2.73.12.82.8

Intangible Assets Net Excluding Goodwill

us-gaap:LongTermDebt



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4163367037343763376232663259324532193196317831753126312631253278327032693290328633152514253125292529251626012593257827902671218015761570156415701582157915831584
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.51.41.41.41.31.31.31.31.31.31.31.31.31.41.41.51.51.51.51.51.11.21.21.21.21.21.31.31.41.61.41.01.01.11.11.11.11.11.2

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-651-653-654-700-713-721
Percentage of LongTermDebt-15.7-17.8-17.5-18.6-19.0-22.1
Percentage of Assets-0.2-0.3-0.2-0.3-0.3-0.3
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor1.41.61.51.51.61.9
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value695697763839852851
Percentage of LongTermDebt16.719.020.422.322.626.1
Percentage of Assets0.30.30.30.30.30.4
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther0.91.01.01.11.11.2
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value411936263625362436243129
Percentage of LongTermDebt99.098.897.196.396.396.0
Percentage of Assets1.51.51.31.31.41.3
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany20.621.119.219.119.920.7

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-297-313-320-336-343-366
Percentage of LongTermDebt-7.2-8.6-8.6-8.9-9.1-11.3
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.2
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor0.81.00.90.91.01.2
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value4344108139138129
Percentage of LongTermDebt1.01.22.93.73.74.0
Percentage of Assets0.00.00.00.10.10.1
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate0.00.00.00.10.10.1
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value297313320336343366
Percentage of LongTermDebt7.28.68.68.99.111.2
Percentage of Assets0.10.10.10.10.10.2
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate1.51.81.71.81.92.4
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value411936263625362436243129
Percentage of LongTermDebt99.098.897.196.396.396.0
Percentage of Assets1.51.51.31.31.41.3
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany20.621.119.219.119.920.7

us-gaap:DebtInstrument

pfg:NonRecourseMortgagesAndNotesPayableConsolidate


Period End2020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312015-12-31
Value4310813913812950041
Percentage of LongTermDebt1.12.93.73.74.01.6-0.01.3
Percentage of Assets0.00.00.10.10.10.0-0.00.0
Percentage of Assets pfg:NonRecourseMortgagesAndNotesPayableConsolidate0.00.00.00.00.00.00.00.0
pfg:NotesPayable2.125PercentDue2030


Period End2020-06-30
Value493
Percentage of LongTermDebt11.8
Percentage of Assets0.2
Percentage of Assets pfg:NotesPayable2.125PercentDue20300.0
pfg:NotesPayable3.125PercentDue2023


Period End2020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-31
Value299299299298298298298298298298299299299299299299
Percentage of LongTermDebt7.28.07.97.99.29.49.59.19.19.19.19.19.011.811.511.2
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.2
Percentage of Assets pfg:NotesPayable3.125PercentDue20230.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
pfg:NotesPayable3.1PercentDue2026


Period End2020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312016-12-31
Value347347347347347346346
Percentage of LongTermDebt8.49.39.29.210.710.911.1
Percentage of Assets0.10.10.10.10.10.10.2
Percentage of Assets pfg:NotesPayable3.1PercentDue20260.00.00.00.00.00.00.0
pfg:NotesPayable3.3PercentDue2022


Period End2020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-312012-09-30
Value299299298298298298297297297297299299299299299298298
Percentage of LongTermDebt7.28.07.97.99.29.49.59.19.19.19.19.19.011.811.511.213.7
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.2
Percentage of Assets pfg:NotesPayable3.3PercentDue20220.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
pfg:NotesPayable3.4PercentDue2025


Period End2020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value397397397397397396396396396395398398398
Percentage of LongTermDebt9.510.610.610.612.212.512.712.112.112.112.112.112.0
Percentage of Assets0.10.10.10.10.20.20.20.20.20.20.20.20.2
Percentage of Assets pfg:NotesPayable3.4PercentDue20250.00.00.00.00.00.00.00.00.00.00.00.00.0
pfg:NotesPayable3.7PercentDue2029


Period End2020-06-302019-12-312019-09-302019-06-30
Value494493493493
Percentage of LongTermDebt11.913.213.113.1
Percentage of Assets0.20.20.20.2
Percentage of Assets pfg:NotesPayable3.7PercentDue20290.00.00.00.0
pfg:NotesPayable4.35PercentDue2043


Period End2020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-31
Value296296296296296296296296296296299299299299299299
Percentage of LongTermDebt7.17.97.97.99.19.39.59.09.19.19.19.19.011.811.511.2
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.2
Percentage of Assets pfg:NotesPayable4.35PercentDue20430.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
pfg:NotesPayable4.3PercentDue2046


Period End2020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312016-12-31
Value296296296296296296296
Percentage of LongTermDebt7.17.97.97.99.19.39.5
Percentage of Assets0.10.10.10.10.10.10.1
Percentage of Assets pfg:NotesPayable4.3PercentDue20460.00.00.00.00.00.00.0
pfg:NotesPayable4.625PercentDue2042


Period End2020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-312012-09-30
Value296296296296296296296296296296299299299299299299299
Percentage of LongTermDebt7.17.97.97.99.19.39.59.09.19.19.19.19.011.811.511.213.7
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.2
Percentage of Assets pfg:NotesPayable4.625PercentDue20420.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
pfg:NotesPayable4.7PercentDue2055


Period End2020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value395395395395395395395395395394400400400
Percentage of LongTermDebt9.510.610.510.512.112.412.612.012.112.112.212.212.1
Percentage of Assets0.10.10.10.10.20.20.20.20.20.20.20.20.2
Percentage of Assets pfg:NotesPayable4.7PercentDue20550.00.00.00.00.00.00.00.00.00.00.00.00.0
pfg:NotesPayable6.05PercentDue2036


Period End2020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-312012-09-302011-12-312010-12-312009-12-31
Value503503503503503502502596596596601601601601601601601601601601
Percentage of LongTermDebt12.113.513.413.415.415.816.118.218.218.318.318.318.123.823.122.527.638.538.038.0
Percentage of Assets0.20.20.20.20.20.20.20.30.30.30.30.30.30.30.30.40.40.40.40.4
Percentage of Assets pfg:NotesPayable6.05PercentDue20360.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value467237814015403838873261312931613182324533933378337432863242351135043401336933922703
Percentage of LongTermDebt112.2103.0107.5107.3103.399.896.097.498.9101.5106.8106.4107.9105.1103.7107.1107.2104.0102.4103.2106.8
Percentage of Assets1.71.51.51.51.51.31.31.21.31.31.31.41.41.41.41.51.61.61.51.61.2
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:EstimateOfFairValueFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value414010713713613412711488664946534646423882
Percentage of LongTermDebt1.01.12.93.63.64.13.93.52.82.11.51.51.61.41.41.31.23.3
Percentage of Assets0.00.00.00.10.10.10.10.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel3 us-gaap:EstimateOfFairValueFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value416336703734376337623266325932453219319631783175312631263125327832703269329032863315251425312529252925162601
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.51.41.41.41.31.31.31.31.31.31.31.31.31.41.41.51.51.51.51.51.11.21.21.21.21.2
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:EstimateOfFairValueFairValueDisclosure


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value471438214122417540233395325732753271331234423425337432863242356535513447341134313437281827862756275226772692
Percentage of LongTermDebt113.2104.1110.4110.9106.9103.999.9100.9101.6103.6108.3107.9107.9105.1103.7108.8108.6105.4103.7104.4103.7112.1110.1109.0108.8106.4103.5
Percentage of Assets1.71.51.51.51.51.31.31.31.31.31.41.41.41.41.41.51.61.61.61.61.51.31.31.31.31.31.3
Percentage of Assets us-gaap:EstimateOfFairValueFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Long Term Debt

us-gaap:MinorityInterest



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value67656768676766676768727069686669686865656969485257709295105103201812387376309265185157122
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.00.00.00.30.30.20.20.10.10.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value676567686766
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther0.10.10.10.10.10.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value676567686766
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate0.00.00.00.00.00.0

Minority Interest

us-gaap:StockholdersEquity



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1524312907146181480414034126941139011700116391218612849119961116810616102271079410499100419311962096931042210184103161040199879684927893039723975398279422936496379980104021018797277893
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.65.25.35.55.24.94.74.54.64.85.14.84.74.54.54.74.74.64.34.54.44.74.64.84.84.74.74.64.74.86.06.26.26.16.57.07.06.96.75.7

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-30238-25682-28766-29403-27377-22563
Percentage of StockholdersEquity-198.4-199.0-196.8-198.6-195.1-198.1
Percentage of Assets-11.1-10.4-10.4-10.9-10.2-9.3
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor63.563.566.764.562.760.4
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value180411564617401177181659013733
Percentage of StockholdersEquity118.4121.2119.0119.7118.2120.6
Percentage of Assets6.66.36.36.66.25.7
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther23.223.222.422.220.619.1
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value12197100351136511685107868830
Percentage of StockholdersEquity80.077.877.878.976.977.5
Percentage of Assets4.54.14.14.34.03.6
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany5.54.95.15.45.14.6
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value152431290714618148041403411390
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0
Percentage of Assets5.65.25.35.55.24.7
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany76.375.177.577.977.175.4

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-35490-30672-34208-35006-33110-28393
Percentage of StockholdersEquity-232.8-237.6-234.0-236.5-235.9-249.3
Percentage of Assets-13.1-12.4-12.4-13.0-12.4-11.7
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor95.394.694.995.594.594.4
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value174481502616806172871651914659
Percentage of StockholdersEquity114.5116.4115.0116.8117.7128.7
Percentage of Assets6.46.16.16.46.26.0
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate6.56.16.16.46.26.0
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value180421564617401177181659113733
Percentage of StockholdersEquity118.4121.2119.0119.7118.2120.6
Percentage of Assets6.76.36.36.66.25.7
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate92.791.692.492.791.390.8
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value152431290714618148041403411390
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0
Percentage of Assets5.65.25.35.55.24.7
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany76.375.177.577.977.175.4

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value-414-424-435-434-444-501-512-425-434-443-371-395-399-404-408-426-434-442-450-375-387-399-411-145-148-155-488
Percentage of StockholdersEquity-2.7-3.3-3.0-2.9-3.2-3.9-4.5-3.6-3.7-3.6-2.9-3.3-3.6-3.8-4.0-3.9-4.1-4.4-4.8-3.9-4.0-3.8-4.0-1.4-1.4-1.6-5.0
Percentage of Assets-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.3
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value851025374615964
Percentage of StockholdersEquity0.60.80.40.50.40.50.6
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.0
us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value33881350280630662279129419024844791414701400133099583115601439113673298195312591202117412488781418
Percentage of StockholdersEquity22.210.519.220.716.210.21.72.13.87.511.411.711.99.48.114.513.711.37.910.29.812.111.811.412.09.114.5
Percentage of Assets1.20.51.01.10.90.50.10.10.20.40.60.60.60.40.40.70.60.50.30.50.40.60.50.50.60.40.9
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:AccumulatedOtherComprehensiveIncome


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value1450-59910371307647-418-1565-1347-1137-46916547-116-455-67591-19-356-882-524-3262850380599183640
Percentage of StockholdersEquity9.5-4.67.18.84.6-3.3-13.7-11.5-9.8-3.91.30.4-1.0-4.3-6.60.9-0.2-3.5-9.5-5.5-3.40.30.53.75.81.96.6
Percentage of Assets0.5-0.20.40.50.2-0.2-0.6-0.5-0.5-0.20.10.0-0.0-0.2-0.30.0-0.0-0.2-0.4-0.2-0.10.00.00.20.30.10.4
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:AccumulatedTranslationAdjustment


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value-1608-1627-1341-1353-1198-1222-1259-1166-1142-909-918-945-1031-1030-1093-1035-1019-1031-1148-1116-867-819-686-563-373-361-106
Percentage of StockholdersEquity-10.6-12.6-9.2-9.1-8.5-9.6-11.1-10.0-9.8-7.5-7.1-7.9-9.2-9.7-10.7-9.6-9.7-10.3-12.3-11.6-8.9-7.9-6.7-5.5-3.6-3.7-1.1
Percentage of Assets-0.6-0.7-0.5-0.5-0.4-0.5-0.5-0.5-0.5-0.4-0.4-0.4-0.4-0.4-0.5-0.4-0.5-0.5-0.5-0.5-0.4-0.4-0.3-0.3-0.2-0.2-0.1
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Stockholders Equity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value1531112972146851487214102127621145611768117061225512921120671123810684102931086310567101099377968597621049210232103691045910057977793739408982697739845943497511001310289106671037298851003490718688801625697519
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.65.35.35.55.34.94.74.54.64.85.14.94.74.54.54.74.74.64.34.54.44.74.74.84.84.84.74.64.84.96.06.26.26.36.87.27.17.06.80.00.00.05.80.00.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-30238-25682-28766-29403-27377-22563
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-197.5-198.0-195.9-197.7-194.1-197.0
Percentage of Assets-11.1-10.4-10.4-10.9-10.2-9.3
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor63.563.566.764.562.760.4
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value181091571117469177871665813799
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest118.3121.1119.0119.6118.1120.5
Percentage of Assets6.76.46.36.66.25.7
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther23.323.322.522.320.719.2
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value12197100351136511685107868830
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest79.777.477.478.676.577.1
Percentage of Assets4.54.14.14.34.03.6
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany5.54.95.15.45.14.6
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value152431290714618148041403411390
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest99.699.599.599.599.599.4
Percentage of Assets5.65.25.35.55.24.7
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany76.375.177.577.977.175.4

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-35490-30672-34208-35006-33110-28393
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-231.8-236.4-232.9-235.4-234.8-247.8
Percentage of Assets-13.1-12.4-12.4-13.0-12.4-11.7
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor95.394.694.995.594.594.4
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value175161509116874173561658714725
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest114.4116.3114.9116.7117.6128.5
Percentage of Assets6.56.16.16.46.26.1
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate6.56.26.16.56.26.1
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value180421564617401177181659113733
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest117.8120.6118.5119.1117.7119.9
Percentage of Assets6.76.36.36.66.25.7
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate92.791.692.492.791.390.8
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value152431290714618148041403411390
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest99.699.599.599.599.599.4
Percentage of Assets5.65.25.35.55.24.7
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany76.375.177.577.977.175.4

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value1450-59910371307647-418-1565-1347-1137-46916547-116-455-67591-19-356-882-524-3262850380599361183-170621631880550488201409698525272476-351-577-1042-4911420
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest9.5-4.67.18.84.6-3.3-13.7-11.5-9.7-3.81.30.4-1.0-4.3-6.60.8-0.2-3.5-9.4-5.4-3.30.30.53.75.73.61.9-0.2-0.06.36.58.95.85.02.04.06.65.12.84.8-3.9-6.7-13.0-191.25.6
Percentage of Assets0.5-0.20.40.50.2-0.2-0.6-0.5-0.5-0.20.10.0-0.0-0.2-0.30.0-0.0-0.2-0.4-0.2-0.10.00.00.20.30.20.1-0.0-0.00.30.40.60.40.30.10.30.50.40.20.00.00.0-0.80.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:AdditionalPaidInCapital


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value10259102161018210162101301009010060100269993998199259886984597809686964696159598954495249473997599459916983998139798974998199771973097129685966996349617959395809563954795259512949283768295
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest67.078.869.368.371.879.187.885.285.481.476.881.987.691.594.188.891.094.9101.898.397.095.197.295.694.197.6100.2104.0104.499.499.698.6102.799.296.293.589.992.496.895.1105.0109.5118.4326.0110.3
Percentage of Assets3.84.13.73.83.83.94.13.94.03.93.94.04.14.24.24.24.34.44.44.44.34.54.54.64.54.64.74.85.04.96.06.16.46.36.56.76.46.56.60.00.00.06.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:CommonStock


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value444444444444444444444444444444444444444444433
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.20.1
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: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:NoncontrollingInterest


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value676567686767666767687270696866696868656569694852577092951051032018123873763092651851571381421321229697
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.40.50.50.50.50.50.60.60.60.60.60.60.60.60.60.60.60.70.70.70.70.70.50.50.50.70.91.01.11.00.20.20.14.03.83.02.51.81.61.41.61.51.53.81.3
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.00.00.00.30.30.20.20.10.10.00.00.00.10.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:RetainedEarnings


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value11441111981107410927108051057110290102079904959894828784811279377720752873397131687567346547642061145945581656055405524951254971494047844667454850775130506648084612459144744340416037223414
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest74.786.375.473.576.682.889.886.784.678.373.472.872.274.375.069.369.570.573.369.567.161.259.857.355.655.755.356.054.550.650.548.649.546.650.749.947.546.446.745.849.350.051.9144.945.4
Percentage of Assets4.24.54.04.04.04.14.23.93.93.83.73.53.43.43.43.33.33.33.13.12.92.92.82.72.72.72.62.62.62.53.13.03.13.03.43.63.43.33.20.00.00.03.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
us-gaap:TreasuryStock


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-7913-7913-7681-7598-7554-7554-7400-7190-7125-6928-6729-6726-6677-6651-6508-6476-6441-6336-6231-6118-6006-6006-5930-5930-5857-5797-5708-5707-5645-5645-5554-5554-5484-5345-5281-5181-4961-4731-4725-4725-4724-4724-4722-4718-4712
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-51.7-61.0-52.3-51.1-53.6-59.2-64.6-61.1-60.9-56.5-52.1-55.7-59.4-62.3-63.2-59.6-60.9-62.7-66.5-63.2-61.5-57.2-58.0-57.2-56.0-57.6-58.4-60.9-60.0-57.4-56.8-56.4-58.1-54.8-52.7-50.4-46.5-45.6-47.8-47.1-52.1-54.4-58.9-183.7-62.7
Percentage of Assets-2.9-3.2-2.8-2.8-2.8-2.9-3.0-2.8-2.8-2.7-2.6-2.7-2.8-2.8-2.9-2.8-2.9-2.9-2.8-2.8-2.7-2.7-2.7-2.7-2.7-2.7-2.7-2.8-2.9-2.8-3.4-3.5-3.6-3.5-3.6-3.6-3.3-3.2-3.20.00.00.0-3.40.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:CommonStockValue



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4444444444444444444444444444444444444444
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:AdditionalPaidInCapital



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value102591021610182101621013010090100601002699939981992598869845978096869646961595989544952494739975994599169839981397989749981997719730971296859669963496179593958095639492
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.84.13.73.83.83.94.13.94.03.93.94.04.14.24.24.24.34.44.44.44.34.54.54.64.54.64.74.85.04.96.06.16.46.36.56.76.46.56.66.9

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-16390-16354-16370-16373-15821-15792
Percentage of AdditionalPaidInCapital-159.8-160.1-160.8-161.1-156.2-157.0
Percentage of Assets-6.0-6.6-5.9-6.1-5.9-6.5
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor34.440.438.035.936.242.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1005810030100381004795009461
Percentage of AdditionalPaidInCapital98.098.298.698.993.894.0
Percentage of Assets3.74.13.63.73.53.9
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther12.914.912.912.611.813.2
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value633263246331632663216331
Percentage of AdditionalPaidInCapital61.761.962.262.362.462.9
Percentage of Assets2.32.62.32.32.42.6
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany2.93.12.82.93.03.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value102591021610182101621013010060
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0
Percentage of Assets3.84.13.73.83.84.1
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany51.359.454.053.555.666.6

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-22038-21912-21816-21664-21050-21104
Percentage of AdditionalPaidInCapital-214.8-214.5-214.2-213.2-207.8-209.8
Percentage of Assets-8.1-8.9-7.9-8.0-7.9-8.7
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor59.267.660.559.160.170.2
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value123411224312157120191192712004
Percentage of AdditionalPaidInCapital120.3119.8119.4118.3117.7119.3
Percentage of Assets4.55.04.44.44.54.9
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate4.65.04.44.54.54.9
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value969796689658964591239100
Percentage of AdditionalPaidInCapital94.594.694.994.990.190.5
Percentage of Assets3.63.93.53.63.43.7
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate49.856.651.350.450.260.2
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value102591021610182101621013010060
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0
Percentage of Assets3.84.13.73.83.84.1
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany51.359.454.053.555.666.6

Additional Paid In Capital

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value114411119811074109271080510571102901020799049598948287848112793777207528733971316875673465476420611459455816560554055249512549714940478446674548507751305066480846124160
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.24.54.04.04.04.14.23.93.93.83.73.53.43.43.43.33.33.33.13.12.92.92.82.72.72.72.62.62.62.53.13.03.13.03.43.63.43.33.23.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-9223-8679-8825-8986-8950-8296
Percentage of RetainedEarningsAccumulatedDeficit-80.6-77.5-79.7-82.2-82.8-80.6
Percentage of Assets-3.4-3.5-3.2-3.3-3.3-3.4
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor19.421.520.519.720.522.2
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value663363076414651265545855
Percentage of RetainedEarningsAccumulatedDeficit58.056.357.959.660.756.9
Percentage of Assets2.42.62.32.42.42.4
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther8.59.48.38.28.18.1
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value259023722410247423962441
Percentage of RetainedEarningsAccumulatedDeficit22.621.221.822.622.223.7
Percentage of Assets1.01.00.90.90.91.0
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany1.21.21.11.11.11.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value114411119811074109271080510290
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0
Percentage of Assets4.24.54.04.04.04.2
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany57.365.158.757.559.368.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-9535-8937-9248-9737-9756-9266
Percentage of RetainedEarningsAccumulatedDeficit-83.3-79.8-83.5-89.1-90.3-90.1
Percentage of Assets-3.5-3.6-3.3-3.6-3.6-3.8
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor25.627.625.726.627.830.8
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value305727882985336833433549
Percentage of RetainedEarningsAccumulatedDeficit26.724.927.030.830.934.5
Percentage of Assets1.11.11.11.21.21.5
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate1.11.11.11.31.31.5
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value647761496263636864125716
Percentage of RetainedEarningsAccumulatedDeficit56.654.956.658.359.355.6
Percentage of Assets2.42.52.32.42.42.4
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate33.336.033.233.335.337.8
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value114411119811074109271080510290
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0
Percentage of Assets4.24.54.04.04.04.2
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany57.365.158.757.559.368.1

Retained Earnings Accumulated Deficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1450-59910371307647-418-1565-1347-1137-46916547-116-455-67591-19-356-882-524-3262850380599361183-170621631880550488201409698525272-1042
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.5-0.20.40.50.2-0.2-0.6-0.5-0.5-0.20.10.0-0.0-0.2-0.30.0-0.0-0.2-0.4-0.2-0.10.00.00.20.30.20.1-0.0-0.00.30.40.60.40.30.10.30.50.40.2-0.8

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-4621-645-3569-4040-26021527
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-318.6107.7-343.9-309.2-401.9-97.6
Percentage of Assets-1.7-0.3-1.3-1.5-1.00.6
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor9.71.68.38.96.0-4.1
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1350-6919481158536-1583
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax93.1115.491.488.682.8101.2
Percentage of Assets0.5-0.30.30.40.2-0.7
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther1.7-1.01.21.50.7-2.2
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value3271133626202882206655
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax225.5-223.1252.5220.5319.1-3.6
Percentage of Assets1.20.50.91.10.80.0
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany1.50.71.21.31.00.0
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1450-59910371307647-1565
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0
Percentage of Assets0.5-0.20.40.50.2-0.6
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany7.3-3.55.56.93.6-10.4

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-3907186-3134-3595-22941986
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-269.4-31.1-302.0-275.1-354.3-127.0
Percentage of Assets-1.40.1-1.1-1.3-0.90.8
Percentage of Assets srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor10.5-0.68.79.86.5-6.6
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2040-14165418901239-903
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax140.72.5159.4144.6191.457.7
Percentage of Assets0.8-0.00.60.70.5-0.4
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate0.8-0.00.60.70.5-0.4
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1867-171147917041055-1083
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax128.728.7142.6130.4162.969.2
Percentage of Assets0.7-0.10.50.60.4-0.4
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate9.6-1.07.98.95.8-7.2
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1450-59910371307647-1565
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0
Percentage of Assets0.5-0.20.40.50.2-0.6
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany7.3-3.55.56.93.6-10.4

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:TreasuryStockValue



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value7913791376817598755475547400719071256928672967266677665165086476644163366231611860066006593059305857579757085707564556455554555454845345528151814961473147254722
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.93.22.82.82.82.93.02.82.82.72.62.72.82.82.92.82.92.92.82.82.72.72.72.72.72.72.72.82.92.83.43.53.63.53.63.63.33.23.23.4

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value791379137681759875547400
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0
Percentage of Assets2.93.22.82.82.83.0
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany39.646.040.740.041.549.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value791379137681759875547400
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0
Percentage of Assets2.93.22.82.82.83.0
Percentage of Assets srt:ReportableLegalEntities srt:ParentCompany39.646.040.740.041.549.0

Treasury Stock Value

us-gaap:MinorityInterest



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value67656768676766676768727069686669686865656969485257709295105103201812387376309265185157122
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.00.00.00.30.30.20.20.10.10.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value676567686766
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther0.10.10.10.10.10.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value676567686766
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate0.00.00.00.00.00.0

Minority Interest

us-gaap:StockIssuedDuringPeriodValueNewIssues



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-31
Value1498165712327010171620998
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-31
Value1498165712327010171620998
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.099.2100.0100.0100.0100.0100.099.5100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Stock Issued During Period Value New Issues

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-31
Value122531118100223321
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-31
Value122531118100223321
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-03-312018-03-312017-03-31
Value15891176746522
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0
Percentage of Revenues34.931.425.917.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-1057-861
Percentage of NetCashProvidedByUsedInOperatingActivities-66.5-73.2
Percentage of Revenues-23.2-23.0
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor226.4224.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value913634
Percentage of NetCashProvidedByUsedInOperatingActivities57.553.9
Percentage of Revenues20.116.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther98.468.1
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value17111376
Percentage of NetCashProvidedByUsedInOperatingActivities107.7117.0
Percentage of Revenues37.636.8
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany41.943.2
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value2027
Percentage of NetCashProvidedByUsedInOperatingActivities1.32.3
Percentage of Revenues0.50.7
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany243.0267.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value66137
Percentage of NetCashProvidedByUsedInOperatingActivities4.211.7
Percentage of Revenues1.53.7
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor-66900.0-11458.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value14611033
Percentage of NetCashProvidedByUsedInOperatingActivities92.087.9
Percentage of Revenues32.127.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate32.927.7
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value40-22
Percentage of NetCashProvidedByUsedInOperatingActivities2.5-1.9
Percentage of Revenues0.9-0.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate40.1-502.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value2027
Percentage of NetCashProvidedByUsedInOperatingActivities1.32.3
Percentage of Revenues0.50.7
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany243.0267.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-03-312018-03-312017-03-31
Value-912-1491-979-1831
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0
Percentage of Revenues-20.1-39.8-34.0-60.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value170562
Percentage of NetCashProvidedByUsedInInvestingActivities-18.7-37.7
Percentage of Revenues3.815.0
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor-36.6-146.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value-583-668
Percentage of NetCashProvidedByUsedInInvestingActivities63.944.8
Percentage of Revenues-12.8-17.8
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther-62.8-71.7
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value-914-1590
Percentage of NetCashProvidedByUsedInInvestingActivities100.2106.7
Percentage of Revenues-20.1-42.5
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany-22.4-49.9
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value413205
Percentage of NetCashProvidedByUsedInInvestingActivities-45.3-13.8
Percentage of Revenues9.15.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany4812.81998.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value-870-260
Percentage of NetCashProvidedByUsedInInvestingActivities95.417.5
Percentage of Revenues-19.1-6.9
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor870700.021683.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value-921-1451
Percentage of NetCashProvidedByUsedInInvestingActivities101.097.4
Percentage of Revenues-20.3-38.8
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate-20.7-38.9
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value46514
Percentage of NetCashProvidedByUsedInInvestingActivities-51.0-1.0
Percentage of Revenues10.20.4
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate465.3338.6
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value413205
Percentage of NetCashProvidedByUsedInInvestingActivities-45.3-13.8
Percentage of Revenues9.15.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany4812.81998.1

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-03-312018-03-312017-03-31
Value290-40398123
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0
Percentage of Revenues6.4-10.83.44.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value849409
Percentage of NetCashProvidedByUsedInFinancingActivities292.6-101.5
Percentage of Revenues18.710.9
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor-181.9-106.5
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value-115-135
Percentage of NetCashProvidedByUsedInFinancingActivities-39.833.7
Percentage of Revenues-2.5-3.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther-12.5-14.6
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value-67-378
Percentage of NetCashProvidedByUsedInFinancingActivities-23.193.9
Percentage of Revenues-1.5-10.1
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany-1.6-11.9
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value-376-298
Percentage of NetCashProvidedByUsedInFinancingActivities-129.673.9
Percentage of Revenues-8.3-8.0
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany-4376.7-2893.2

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value894304
Percentage of NetCashProvidedByUsedInFinancingActivities308.0-75.6
Percentage of Revenues19.78.1
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor-894400.0-25391.7
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value213-194
Percentage of NetCashProvidedByUsedInFinancingActivities73.448.2
Percentage of Revenues4.7-5.2
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate4.8-5.2
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value-440-215
Percentage of NetCashProvidedByUsedInFinancingActivities-151.853.5
Percentage of Revenues-9.7-5.8
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate-440.3-4902.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value-376-298
Percentage of NetCashProvidedByUsedInFinancingActivities-129.673.9
Percentage of Revenues-8.3-8.0
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany-4376.7-2893.2

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-03-312018-03-312017-03-31
Value15891176746522
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0
Percentage of Revenues34.931.425.917.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-1057-861
Percentage of NetCashProvidedByUsedInOperatingActivities-66.5-73.2
Percentage of Revenues-23.2-23.0
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor226.4224.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value913634
Percentage of NetCashProvidedByUsedInOperatingActivities57.553.9
Percentage of Revenues20.116.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther98.468.1
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value17111376
Percentage of NetCashProvidedByUsedInOperatingActivities107.7117.0
Percentage of Revenues37.636.8
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany41.943.2
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value2027
Percentage of NetCashProvidedByUsedInOperatingActivities1.32.3
Percentage of Revenues0.50.7
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany243.0267.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value66137
Percentage of NetCashProvidedByUsedInOperatingActivities4.211.7
Percentage of Revenues1.53.7
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor-66900.0-11458.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value14611033
Percentage of NetCashProvidedByUsedInOperatingActivities92.087.9
Percentage of Revenues32.127.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate32.927.7
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value40-22
Percentage of NetCashProvidedByUsedInOperatingActivities2.5-1.9
Percentage of Revenues0.9-0.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate40.1-502.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value2027
Percentage of NetCashProvidedByUsedInOperatingActivities1.32.3
Percentage of Revenues0.50.7
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany243.0267.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetIncomeLoss



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value39828830027738642923645645639784181030934830832236830025742224831430125323018622318718120971266204150142199
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues12.86.37.46.29.711.56.310.514.113.826.017.59.711.410.910.712.19.37.915.910.012.112.211.310.48.69.76.98.610.03.411.49.26.66.48.8

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-686-758
Percentage of NetIncomeLoss-237.5-176.4
Percentage of Revenues-15.1-20.3
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor146.9197.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value316462
Percentage of NetIncomeLoss109.6107.7
Percentage of Revenues7.012.4
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther34.149.7
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value369295
Percentage of NetIncomeLoss127.968.7
Percentage of Revenues8.17.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany9.19.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value288429
Percentage of NetIncomeLoss100.0100.0
Percentage of Revenues6.311.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany3359.34173.8

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value-651-945
Percentage of NetIncomeLoss-225.5-219.9
Percentage of Revenues-14.3-25.3
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor651500.078783.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value334482
Percentage of NetIncomeLoss115.9112.2
Percentage of Revenues7.412.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate7.512.9
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value316462
Percentage of NetIncomeLoss109.6107.7
Percentage of Revenues7.012.4
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate316.310520.5
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value288429
Percentage of NetIncomeLoss100.0100.0
Percentage of Revenues6.311.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany3359.34173.8

Net Income Loss

us-gaap:ProfitLoss



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value41628531528439245223146045940284281331435333832732736925830026442928025231932425025923619023019118421817166289223218151144203154204164122
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues13.46.37.86.49.912.16.110.614.214.026.017.69.911.69.611.610.812.29.29.38.116.19.610.212.213.19.411.610.78.810.07.18.710.48.33.212.410.19.26.66.59.06.99.07.65.6

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-686-755
Percentage of ProfitLoss-240.8-167.2
Percentage of Revenues-15.1-20.2
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor146.9196.7
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value312482
Percentage of ProfitLoss109.7106.8
Percentage of Revenues6.912.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther33.751.8
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value369295
Percentage of ProfitLoss129.765.3
Percentage of Revenues8.17.9
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany9.19.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value288429
Percentage of ProfitLoss101.495.1
Percentage of Revenues6.311.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany3359.34173.8

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value-651-945
Percentage of ProfitLoss-228.6-209.1
Percentage of Revenues-14.3-25.3
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor651500.078783.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value331504
Percentage of ProfitLoss116.1111.6
Percentage of Revenues7.313.5
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate7.513.5
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value316462
Percentage of ProfitLoss111.1102.4
Percentage of Revenues7.012.4
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate316.310520.5
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value288429
Percentage of ProfitLoss101.495.1
Percentage of Revenues6.311.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany3359.34173.8

Profit Loss

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-03-312018-03-312017-03-31
Value-912-1491-979-1831
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0
Percentage of Revenues-20.1-39.8-34.0-60.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value170562
Percentage of NetCashProvidedByUsedInInvestingActivities-18.7-37.7
Percentage of Revenues3.815.0
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor-36.6-146.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value-583-668
Percentage of NetCashProvidedByUsedInInvestingActivities63.944.8
Percentage of Revenues-12.8-17.8
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther-62.8-71.7
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value-914-1590
Percentage of NetCashProvidedByUsedInInvestingActivities100.2106.7
Percentage of Revenues-20.1-42.5
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany-22.4-49.9
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value413205
Percentage of NetCashProvidedByUsedInInvestingActivities-45.3-13.8
Percentage of Revenues9.15.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany4812.81998.1

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value-870-260
Percentage of NetCashProvidedByUsedInInvestingActivities95.417.5
Percentage of Revenues-19.1-6.9
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor870700.021683.3
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value-921-1451
Percentage of NetCashProvidedByUsedInInvestingActivities101.097.4
Percentage of Revenues-20.3-38.8
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate-20.7-38.9
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value46514
Percentage of NetCashProvidedByUsedInInvestingActivities-51.0-1.0
Percentage of Revenues10.20.4
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate465.3338.6
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value413205
Percentage of NetCashProvidedByUsedInInvestingActivities-45.3-13.8
Percentage of Revenues9.15.5
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany4812.81998.1

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-03-312018-03-312017-03-31
Value290-40398123
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0
Percentage of Revenues6.4-10.83.44.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value849409
Percentage of NetCashProvidedByUsedInFinancingActivities292.6-101.5
Percentage of Revenues18.710.9
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor-181.9-106.5
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value-115-135
Percentage of NetCashProvidedByUsedInFinancingActivities-39.833.7
Percentage of Revenues-2.5-3.6
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther-12.5-14.6
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-03-312019-03-31
Value-67-378
Percentage of NetCashProvidedByUsedInFinancingActivities-23.193.9
Percentage of Revenues-1.5-10.1
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceCompany-1.6-11.9
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value-376-298
Percentage of NetCashProvidedByUsedInFinancingActivities-129.673.9
Percentage of Revenues-8.3-8.0
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany-4376.7-2893.2

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value894304
Percentage of NetCashProvidedByUsedInFinancingActivities308.0-75.6
Percentage of Revenues19.78.1
Percentage of Revenues srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor-894400.0-25391.7
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value213-194
Percentage of NetCashProvidedByUsedInFinancingActivities73.448.2
Percentage of Revenues4.7-5.2
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate4.8-5.2
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value-440-215
Percentage of NetCashProvidedByUsedInFinancingActivities-151.853.5
Percentage of Revenues-9.7-5.8
Percentage of Revenues srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate-440.3-4902.3
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value-376-298
Percentage of NetCashProvidedByUsedInFinancingActivities-129.673.9
Percentage of Revenues-8.3-8.0
Percentage of Revenues srt:ReportableLegalEntities srt:ParentCompany-4376.7-2893.2

Net Cash Provided By Used In Financing Activities

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

us-gaap:ProceedsFromIssuanceOfLongTermDebt

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value-2-2
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value22
Percentage of ProceedsFromIssuanceOfLongTermDebt-100.0-100.0

Proceeds From Issuance Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-03-312018-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-31
Value6400191000013
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-1-5
Percentage of RepaymentsOfLongTermDebt-2.0-1933.3
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor0.00.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value656
Percentage of RepaymentsOfLongTermDebt102.02033.3
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther0.00.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value-9-9
Percentage of RepaymentsOfLongTermDebt-14.1-3133.3
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor0.00.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value640
Percentage of RepaymentsOfLongTermDebt100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate0.00.0
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value99
Percentage of RepaymentsOfLongTermDebt14.13133.3
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate0.00.0

Repayments Of Long Term Debt

us-gaap:PaymentsOfDividendsCommonStock



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value153150147130110106826754
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value153150
Percentage of PaymentsOfDividendsCommonStock100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value153150
Percentage of PaymentsOfDividendsCommonStock100.0100.0

Payments Of Dividends Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-31
Value2311531991421057589906451
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value231153
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-03-312019-03-31
Value231153
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-03-312018-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-31
Value6400191000013
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-03-312019-03-31
Value-1-5
Percentage of RepaymentsOfLongTermDebt-2.0-1933.3
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherNotesGuarantor0.00.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value656
Percentage of RepaymentsOfLongTermDebt102.02033.3
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:ReportableLegalEntities pfg:SubsidiariesPrincipalFinancialServicesAndOther0.00.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-03-312019-03-31
Value-9-9
Percentage of RepaymentsOfLongTermDebt-14.1-3133.3
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:ConsolidationEliminations pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor0.00.0
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value640
Percentage of RepaymentsOfLongTermDebt100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:ReportableLegalEntities pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate0.00.0
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-03-312019-03-31
Value99
Percentage of RepaymentsOfLongTermDebt14.13133.3
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:ReportableLegalEntities pfg:SubsidiaryPrincipalFinancialServicesConsolidate0.00.0

Repayments Of Long Term Debt

us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateStatedPercentage

pfg:NotesPayable2.125PercentDue2030


Period End2020-06-30
Value0.02125
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations pfg:NotesPayable2.125PercentDue20300.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

pfg:NotesPayable2.125PercentDue2030, us-gaap:SeniorNotes


Period End2020-06-12
Value0.02125
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations pfg:NotesPayable2.125PercentDue2030 us-gaap:SeniorNotes0.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:EffectiveIncomeTaxRateContinuingOperations



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value0.170.130.180.130.140.190.110.120.30.140.150.120.180.16
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:PerformanceShares


Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value00000000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.0100.0100.0100.0100.0100.0
us-gaap:RestrictedStockUnitsRSU


Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value11001001
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod333.3500.0400.0400.0400.0266.7300.0400.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value31503482251531983315225929772926234224702719
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherNotesGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value-903-861-824-680-863-586-696-447-300-325-920
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents-28.7-24.7-32.8-21.3-26.0-26.0-23.4-15.3-12.8-13.2-33.9
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value19301982176717682758184520141752155815262082
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents61.356.970.355.383.281.767.759.966.561.876.6
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value166919081178180880573013231311833426675
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents53.054.846.856.624.332.344.544.835.617.324.8
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value454453394301615270334310250842882
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents14.413.015.79.418.612.011.210.610.734.132.5

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ConsolidationEliminations, pfg:ConsolidationEliminationsAndOtherShelfRegistrationDebtGuarantor


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value-1082-1043-1133-1059-1268-921-1103-1123-887-990-1481
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents-34.3-29.9-45.1-33.1-38.2-40.8-37.1-38.4-37.9-40.1-54.5
srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value30543408265633642365248430963033244820012114
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents96.997.9105.6105.271.3110.0104.0103.6104.681.077.8
srt:ReportableLegalEntities, pfg:SubsidiaryPrincipalFinancialServicesConsolidate


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value72366359859216034266497065306171203
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents23.019.123.818.548.318.921.824.122.625.044.2
srt:ReportableLegalEntities, srt:ParentCompany


Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value454453394301615270334310250842882
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents14.413.015.79.418.612.011.210.610.734.132.5

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:ProceedsFromRepaymentsOfShortTermDebt



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312012-03-312011-03-312010-03-31
Value240387-5900-7031
Percentage of ProceedsFromRepaymentsOfShortTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesNotesGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalFinancialServicesAndOther


Period End2020-03-312019-03-31
Value240
Percentage of ProceedsFromRepaymentsOfShortTermDebt100.0100.0

us-gaap:ConsolidationItems, pfg:ParentAndSubsidiariesShelfRegistrationDebtGuarantor

srt:ReportableLegalEntities, pfg:SubsidiariesPrincipalLifeInsuranceAndOtherConsolidate


Period End2020-03-312019-03-31
Value240
Percentage of ProceedsFromRepaymentsOfShortTermDebt100.0100.0

Proceeds From Repayments Of Short Term Debt

us-gaap:StatementEquityComponents

pfg:AdjustmentsForAssumedChangesInAmortizationPatternsBeforeTax

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value-1000-1
Percentage of AdjustmentsForAssumedChangesInAmortizationPatternsBeforeTax100.0100.0100.0100.0100.0
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value336-33260117122-12-54-860321575656-35-9513-28
Percentage of AdjustmentsForAssumedChangesInAmortizationPatternsBeforeTax-33640.0-110833.360900.0-19600.0-6426.30.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

pfg:AdjustmentsForAssumedChangesInAmortizationPatternsNetOfTax

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value0000-1
Percentage of AdjustmentsForAssumedChangesInAmortizationPatternsNetOfTax100.0100.0100.0100.0100.0
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value265-262489296-9-42-680211053636-23-628-18
Percentage of AdjustmentsForAssumedChangesInAmortizationPatternsNetOfTax-33225.0-87566.748200.0-18580.0-6426.70.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

pfg:AdjustmentsForAssumedChangesInAmortizationPatternsTax

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Period End2020-06-302019-06-302019-03-31
Value000
Percentage of AdjustmentsForAssumedChangesInAmortizationPatternsTax100.0100.0100.0
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value70-69122425-2-11-18011521919-12-334-9
Percentage of AdjustmentsForAssumedChangesInAmortizationPatternsTax-35300.00.00.0-24700.0-6425.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

pfg:AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsBeforeTax

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value-1-1-1-1-3
Percentage of AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsBeforeTax100.0100.0100.0100.0100.0
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value1232-662342462300-41-102-178236478126394293-190-526168-149290
Percentage of AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsBeforeTax-72500.055183.3-28525.0-38525.0-8341.70.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

pfg:AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsNetOfTax

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value-1-1-1-1-2
Percentage of AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsNetOfTax100.0100.0100.0100.0100.0
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value954-510257353230-32-89-13314415489261194-126-345110-102196
Percentage of AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsNetOfTax-73453.851000.0-25780.0-35370.0-8548.10.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

pfg:AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsTax

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value00000
Percentage of AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsTax100.0100.0100.0100.0100.0
us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value277-1528410869-9-12-45823243713299-64-18058-4793
Percentage of AdjustmentsForAssumedChangesInLiabilityForPolicyholderBenefitsAndClaimsTax-69400.076100.0-42250.0-54300.0-7722.20.00.00.00.00.00.00.00.00.00.00.00.00.00.0

pfg:AdjustmentsToRedemptionAmountOfRedeemableNoncontrollingInterest



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-31
Value2000-220003-3-34
Percentage of AdjustmentsToRedemptionAmountOfRedeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-03-312017-03-312016-03-312015-03-312014-03-31
Value2001-22003-3-24
Percentage of AdjustmentsToRedemptionAmountOfRedeemableNoncontrollingInterest100.075.0100.0125.0100.0100.0100.0100.0100.0100.071.7
us-gaap:NoncontrollingInterest


Period End2020-03-312019-06-302018-06-30
Value000
Percentage of AdjustmentsToRedemptionAmountOfRedeemableNoncontrollingInterest25.0-25.0100.0

pfg:AvailableForSaleDebtSecuritiesHedgingNet



Period End2020-06-302019-06-302018-09-302018-06-302017-09-302014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value-8-9-4-2-1-21-34-9-60-29123-1611059-308012946
Percentage of AvailableForSaleDebtSecuritiesHedgingNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

pfg:CapitalGainsLossesDistributed



Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30