AIZ


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:Revenues
us-gaap:StatementBusinessSegments

us-gaap:PremiumsEarnedNet
us-gaap:StatementBusinessSegments

us-gaap:NetInvestmentIncome
us-gaap:StatementBusinessSegments

us-gaap:RealizedInvestmentGainsLosses
us-gaap:StatementBusinessSegments

us-gaap:OtherIncome
us-gaap:StatementBusinessSegments

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet
us-gaap:StatementBusinessSegments

us-gaap:SellingGeneralAndAdministrativeExpense
us-gaap:StatementBusinessSegments

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:StatementBusinessSegments

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

us-gaap:NetIncomeLoss
us-gaap:StatementBusinessSegments

us-gaap:Assets
us-gaap:StatementBusinessSegments

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

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

us-gaap:MinorityInterest

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:TreasuryStockValue

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementBusinessSegments

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

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:ShareBasedCompensation

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

aiz:AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired
us-gaap:StatementBusinessSegments

aiz:AmortizationofDeferredGainonDisposalofBusinesses
us-gaap:StatementBusinessSegments

aiz:ChangeInDeferredAcquisitionCostsAndValueOfBusinessAcquired

aiz:ChangeInInsurancePolicyReservesAndExpenses

aiz:ChangeInPremiumsAndAccountsReceivable

aiz:ChangeinNoncreditRelatedImpairmentLossesNet

aiz:ChangeinNoncreditRelatedImpairmentLossesTax

aiz:EquitySecuritiesWithoutReadilyDeterminableFairValueRealizedGainLossOnSale

aiz:IncreaseDecreaseinCommissionsPayable
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
aiz:InvestmentChangeInFairValueAfterTax

aiz:InvestmentImpairmentLossesincludedinNetRealizedGainsLosses
us-gaap:InvestmentType

aiz:InvestmentRelatedChargesNetofDerivativeGains
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:StatementBusinessSegments
us-gaap:FinancialInstrument, us-gaap:InvestmentType
aiz:NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest
us-gaap:InvestmentType

aiz:PaymentsToAcquireEquitySecurities
us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:DebtInstrument, us-gaap:InvestmentType
aiz:PercentageOfInvestmentOfOverallOwnership
us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:DebtInstrument, us-gaap:InvestmentType
aiz:PercentageOfInvestmentOfTheMostSubordinatedTrancheOfCLO

aiz:PremiumsandAccountsReceivableAllowanceForCreditLossForeignCurrencyTranslationandOther
us-gaap:StatementBusinessSegments

aiz:PremiumsandAccountsReceivableAllowanceforCreditLossesPeriodIncreaseDecrease
us-gaap:StatementBusinessSegments

aiz:ProceedsFromTheSaleOfEquitySecurities

aiz:ProceedsfromSalesandRedemptionsofInvestmentsbySpecialPurposeEntities

aiz:PurchasesofInvestmentsbySpecialPurposeEntities

aiz:RealizedInvestmentGainsLossRelatedtoSalesandOther
us-gaap:InvestmentType

aiz:ReceivableAllowanceforCreditLossesPeriodIncreaseDecrease
us-gaap:IncomeStatementLocation

aiz:ReinsuranceRecoverableAllowanceforCreditLossRecovery
us-gaap:StatementBusinessSegments

aiz:ReinsuranceRecoverableCreditLossExpenseReversal
us-gaap:StatementBusinessSegments

aiz:SpecialPurposeEntityProceedsFromIssuanceOfLongTermDebt

aiz:SpecialPurposeEntityRepaymentsofDebt

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax

us-gaap:AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease

us-gaap:AmortizationOfDeferredHedgeGains
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:BenefitsLossesAndExpenses
us-gaap:StatementBusinessSegments

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType, us-gaap:FinancialInstrument, us-gaap:GeographicDistribution
us-gaap:ConcentrationRiskPercentage1
us-gaap:EquitySecuritiesByIndustry, us-gaap:FinancialInstrument, us-gaap:InternalCreditAssessment, us-gaap:InvestmentType
us-gaap:ProductOrService
us-gaap:ContractWithCustomerLiabilityRevenueRecognized
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:VariableRate
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:DebtSecuritiesGainLossExcludingOtti

us-gaap:DeferredIncomeTaxesAndTaxCredits
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DividendsCommonStock
us-gaap:StatementEquityComponents

us-gaap:DividendsPreferredStockCash
us-gaap:StatementEquityComponents

us-gaap:EarningsPerShareBasicDistributed

us-gaap:EarningsPerShareBasicUndistributed

us-gaap:EarningsPerShareDilutedDistributed

us-gaap:EarningsPerShareDilutedUndistributed

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
us-gaap:AwardType, us-gaap:PlanName
us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiRealizedGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss
us-gaap:InvestmentType
us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount
us-gaap:ConsolidatedEntities, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:ConsolidatedEntities, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:FairValueOptionChangesInFairValueGainLoss1

us-gaap:IncreaseDecreaseInFundsHeldUnderReinsuranceAgreements

us-gaap:IncreaseDecreaseInIncomeTaxes

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInReinsurancePayables

us-gaap:IncreaseDecreaseInReinsuranceRecoverable
us-gaap:StatementClassOfStock
us-gaap:IncrementalCommonSharesAttributableToConversionOfPreferredStock
us-gaap:AwardType
us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1

us-gaap:MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments

us-gaap:MinorityInterestPeriodIncreaseDecrease
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
us-gaap:StatementBusinessSegments

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
us-gaap:StatementBusinessSegments

us-gaap:OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
us-gaap:DerivativeInstrumentRisk
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:PaymentsForLossesAndLossAdjustmentExpense

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromShortTermInvestments

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsPreferredStockAndPreferenceStock

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireMortgageNotesReceivable

us-gaap:PaymentsToAcquireOtherInvestments
us-gaap:StatementClassOfStock
us-gaap:PreferredStockDividendRatePercentage

us-gaap:PreferredStockDividendsAndOtherAdjustments
us-gaap:StatementBusinessSegments

us-gaap:PreferredStockDividendsPerShareDeclared

us-gaap:ProceedsAndExcessTaxBenefitFromSharebasedCompensation

us-gaap:ProceedsFromIssuanceOfOtherLongTermDebt

us-gaap:ProceedsFromLinesOfCredit
us-gaap:CreditFacility, us-gaap:SubsequentEventType

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromSaleAndCollectionOfMortgageNotesReceivable

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfOtherInvestments
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodTax
us-gaap:StatementBusinessSegments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
us-gaap:PlanName, us-gaap:SubsequentEventType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments, us-gaap:Subsegments

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents

us-gaap:UndistributedEarnings

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment
us-gaap:FinancialInstrument
aiz:AdvanceRefundedOrEscrowedToMaturitySecurities

aiz:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesPercentage

aiz:AvailableForSaleSecuritiesGrossUnrealizedLossesPercentage
us-gaap:ProductOrService
aiz:DeferredUpfrontCommissionsandOtherCosts
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
aiz:FundsHeldunderReinsuranceAgreementsLiabilityFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios
aiz:LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios
aiz:LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios
aiz:LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios
aiz:LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios
aiz:LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue
us-gaap:FinancialInstrument
aiz:MaximumIndividualStateExposure

aiz:NumberOfAvailableForSaleSecuritiesComprisingGrossUnrealizedLoss
us-gaap:FinancialInstrument
aiz:PercentageOfRevenueSecurities
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios
aiz:PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue
us-gaap:CreditRatingStandardPoors
aiz:PercentageofReinsuranceRecoverablesSubjecttoAllowance
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
aiz:PolicyReservesUnderInvestmentProductsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

aiz:PremiumsandAccountsReceivablesAllowanceForCreditLoss
us-gaap:StatementBusinessSegments

aiz:ReceivableAllowanceforCreditLoss
aiz:CumulativeEffectPeriodOfAdoption

aiz:ReceivablenetofAllowanceforCreditLoss
aiz:CumulativeEffectPeriodOfAdoption
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
aiz:SeparateAccountLiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

aiz:VariableInterestEntityConsolidatedAssetsCash

aiz:VariableInterestEntityConsolidatedAssetsInvestmentsAtFairValue

aiz:VariableInterestEntityConsolidatedAssetsOtherReceivables

aiz:VariableInterestEntityConsolidatedLiabilitiesCollateralizedLoanObligationNotesAtFairValue

aiz:VariableInterestEntityConsolidatedLiabilitiesOtherLiabilities

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent

us-gaap:AccruedInvestmentIncomeReceivable

us-gaap:AccruedSalesCommissionCurrentAndNoncurrent

us-gaap:AdditionalPaidInCapitalCommonStock
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:InvestmentType
us-gaap:EquitySecuritiesByIndustry, us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost
us-gaap:UnderlyingAssetClass
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
us-gaap:UnderlyingAssetClass

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:ProductOrService
us-gaap:ContractWithCustomerAssetNet
us-gaap:ProductOrService
us-gaap:ContractWithCustomerLiability

us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
us-gaap:StatementEquityComponents
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:DebtInstrumentFairValue
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialInstrument, us-gaap:GeographicDistribution
us-gaap:DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
us-gaap:InvestmentType
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
us-gaap:InvestmentType
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
us-gaap:InvestmentType
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:InvestmentType
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition
us-gaap:InvestmentType
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
us-gaap:InvestmentType

us-gaap:DeferredPolicyAcquisitionCosts

us-gaap:DefinedBenefitPlanFundedPercentage

us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:AwardType, us-gaap:PlanName
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EquitySecuritiesFvNi
us-gaap:ConsolidatedEntities, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialLiabilitiesFairValueDisclosure
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, aiz:OtherLiabilitiesType
us-gaap:ConsolidatedEntities, us-gaap:FairValueByMeasurementFrequency
us-gaap:ConsolidatedEntities, us-gaap:FairValueByMeasurementFrequency, aiz:OtherLiabilitiesType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:FundsHeldUnderReinsuranceAgreementsLiability

us-gaap:Investments
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:InvestmentsFairValueDisclosure
us-gaap:ConsolidatedEntities, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:LettersOfCreditOutstandingAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense

us-gaap:LiabilityForFuturePolicyBenefits

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LineOfCreditFacility
us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity
us-gaap:CreditFacility
us-gaap:LinesOfCreditCurrent

us-gaap:LoansAndLeasesReceivableAllowance
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios
us-gaap:LoansAndLeasesReceivableGrossCarryingAmount
us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue

us-gaap:LoansAndLeasesReceivableNetReportedAmount
aiz:CumulativeEffectPeriodOfAdoption

us-gaap:MortgageLoansOnRealEstateCommercialAndConsumerNet
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:MortgagesHeldForSaleFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:Range, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:NotesReceivableGross

us-gaap:OtherAssets
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency
us-gaap:OtherAssetsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:OtherInvestments
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:OtherLiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:OtherShortTermInvestments

us-gaap:PreferredStockSharesAuthorized

us-gaap:PreferredStockSharesOutstanding

us-gaap:PreferredStockValue

us-gaap:PremiumsAndOtherReceivablesNet
aiz:CumulativeEffectPeriodOfAdoption

us-gaap:ReinsurancePayable

us-gaap:ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments

us-gaap:ReinsuranceRecoverables
aiz:CumulativeEffectPeriodOfAdoption

us-gaap:ReinsuranceRecoverablesAllowance
us-gaap:StatementBusinessSegments
us-gaap:CreditRatingAMBest, us-gaap:CededCreditRisk
us-gaap:ReinsuranceRecoverablesGross

us-gaap:SeparateAccountAssets

us-gaap:SeparateAccountsLiability
us-gaap:PlanName, us-gaap:SubsequentEventType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockShares

us-gaap:UnearnedPremiums

us-gaap:UnsecuredDebt

us-gaap:ValueOfBusinessAcquiredVOBA

us-gaap:VariableInterestEntityConsolidatedCarryingAmountAssets
us-gaap:ConsolidatedEntities, us-gaap:InvestmentType
us-gaap:ConsolidatedEntities, us-gaap:InvestmentType, us-gaap:LongtermDebtType

us-gaap:VariableInterestEntityConsolidatedCarryingAmountLiabilities

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄11111111111111111111111111111111111111NANANA
us-gaap:CommonStockSharesIssued ▄▄▄▄▄▄▄▄161161161161161161161161NA150NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockSharesOutstanding ▂▂▂▂▂▂▂▃▁▁▁▁▁▁▂▂▂▃▃▃▃▃▄▄▄▄▄▄▅▅▅▅▆▆▇▇▇█59596061616162635252535455555860626566666869707171717375787879828688929497102NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 63NA616565NA635754NA545556NA606265NA676970NA737373NA767880NA828790NA9698101NA108112117
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 60NA616262NA635753NA545556NA606265NA676869NA727272NA757779NA828688NA9597101NA107111116
us-gaap:EarningsPerShareBasic ▅▄▂▅▅▃▃▄▄█▂▅▅▃▅▅▆▄▃▃▃▃▄▄▄▄▄▄▄▃▄▄▄▄▃▄▄▁▄▄▄2.482.01-0.962.242.570.320.761.091.995.79-1.052.182.560.542.42.723.380.99-0.10.480.720.71.941.981.881.481.71.721.470.311.541.961.841.760.81.71.4-1.741.311.471.35
us-gaap:EarningsPerShareDiluted ▅▄▂▅▅▃▃▄▄█▂▅▅▃▅▅▆▄▃▃▃▃▄▄▄▄▄▄▄▃▄▄▄▄▃▄▄▁▄▄▄2.431.91-0.962.212.520.320.761.091.965.76-1.052.162.530.542.372.73.340.97-0.10.470.710.691.921.951.861.461.681.71.460.311.521.941.811.730.791.681.39-1.741.31.461.34
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Revenues ▇▇▇▇▆▆▅▃▂▂▁▁▁▂▃▂▅▇▇█▇██▇▆▆▅▅▅▅▅▅▄▄▄▄▄▄▄▅▅25652606249925452435231722701831163816761586160015511752183417972147254725342644259826222702260824482400225822372150216021452129207221112061206220362105211321402167
 us-gaap:Revenues us-gaap:StatementBusinessSegments aiz:GlobalHousing▁▃▂▂▁▂▃▄▃▆▄▅▄▇█▆522541532528525529538558543578553567550590596579NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementBusinessSegments aiz:GlobalLifestyle██▇▇▆▆▆▃▂▂▁▁▁▂▂▂20011927181118651740168715961138950942874862831961955941NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PremiumsEarnedNet ▇▇▇▇▆▆▆▃▁▂▁▁▁▂▂▂▃▆▇▇▇▇██▇2083206720152032190418401853133811241165107311151050117412151202141519942058213821592142225721712060NA194719161850NA183817921777NA177717681762NA183218491906
 us-gaap:PremiumsEarnedNet us-gaap:StatementBusinessSegments aiz:GlobalHousing▇██▇▆▅▆▄▃▆▁▃▃▄▅▅467478475471460457463449436459423442436450457451NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PremiumsEarnedNet us-gaap:StatementBusinessSegments aiz:GlobalLifestyle██▇█▇▆▆▃▂▂▁▁▁▂▂▂1597157415251545142813671376874673688636656595697742739NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetInvestmentIncome ▅█▆▅▆▇▄▃▂▁▂▁▁▃▂▁▃▅▄▆▅▅▆▆▆156185169154166180151135130118132121120135124119135157148167152158162167168NA159163165NA169199172NA172173171NA176175174
 us-gaap:NetInvestmentIncome us-gaap:StatementBusinessSegments aiz:GlobalHousing▅█▅▃▆▇▂▁▄▂▅▂▃▃▂▂22282218252717152016231619191717NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetInvestmentIncome us-gaap:StatementBusinessSegments aiz:GlobalLifestyle▅█▆▅▆▇▅▂▂▁▂▁▁▂▁▁54736256586654363228332626322726NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetInvestmentIncome us-gaap:StatementBusinessSegments aiz:GlobalPreneed▆▇▇▆▅█▆▄▃▄▄▃▃▄▅▁70727370697470676566666564676861NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RealizedInvestmentGainsLosses ▁▇▇▇█▄▆▇▆-954141728-46-520NANANANANANANANANANANANA1717619NA-32013NA8187NA0163NA619NA
us-gaap:OtherIncome █▆▄▅▅▅▃▆▆▆▆▅▆▇▆▅▆▇▅▅▄▅▃▃▁416351295336328331257354364366349326340388347328357382317323279316261259196NA151132117NA124114111NA1069993NA939076
 us-gaap:OtherIncome us-gaap:StatementBusinessSegments aiz:GlobalLifestyle█▅▃▅▄▄▁▃▄▃▃▂▃▄▂▁349279224263253253165227244224205180209232185175NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PolicyholderBenefitsAndClaimsIncurredNet ▃▃▄▄▃▄▃▂▁▁▃▁▁▂▂▁▂▆███▇▇▇▆60764770568761475668049041441468241635842843540054310091254126712101123112311491008NA933916857NA895872856NA998988894NA913905927
 us-gaap:PolicyholderBenefitsAndClaimsIncurredNet us-gaap:StatementBusinessSegments aiz:GlobalHousing▂▂▃▂▂▅▄▂▁▁█▂▁▃▂▂198217245207198317264187169170436188163227218202NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PolicyholderBenefitsAndClaimsIncurredNet us-gaap:StatementBusinessSegments aiz:GlobalLifestyle▆▇▇█▆▇▆▃▂▂▂▂▁▁▂▁336364392412347372352239181183190178148160180161NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PolicyholderBenefitsAndClaimsIncurredNet us-gaap:StatementBusinessSegments aiz:GlobalPreneed█▄▅▄▆▅▃▄▄▆▂▂▄▃▁▂72666766686764656668626166636061NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:SellingGeneralAndAdministrativeExpense ▅▅▃▄▄▃▂▃▂▃▁▁▁▅▄▄▅█▆▆▅▇▆▅▄90886276483280075073677371974566764665188883380391710759569699211007953884843NA737742688NA661642610NA562565557NA581604571
 us-gaap:SellingGeneralAndAdministrativeExpense us-gaap:StatementBusinessSegments aiz:GlobalHousing▁▁▂▁▂▁▃▅▅▅▅▆▅█▇▅173170187173180174198229234229235247240279260231NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:SellingGeneralAndAdministrativeExpense us-gaap:StatementBusinessSegments aiz:GlobalLifestyle██▄▆▆▅▄▃▃▃▂▁▁▄▄▄667655496570555514463419415413371340354481470464NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestExpense ▆▆█▆▆▆▆▆▄▁▁▁▁▁▂▂▂▁▁▁▁▁▁▁▃25253226262626262112121212131415141313131313131317NA202115NA151515NA151515NA151515
 us-gaap:InterestExpense us-gaap:StatementBusinessSegments aiz:TotalCorporateAndOther25NA3226262626262112121212131415NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▄▅▂▆▆▃▄▄▅▅▁▅▆▄▆▆█▄▂▃▄▄▆▆▆▅▆▆▆▃▆▇▇▇▄▅▆109178-24183217427578136158-10717821554220235337110-3240839022419323517819321020634208264249248115131214NA226253NA
 us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:StatementBusinessSegments aiz:GlobalHousing▇▇▆▇▇▅▅▇▇█▁▇▇▅▆▇9392529091-15249189131-1678496166484NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:StatementBusinessSegments aiz:GlobalLifestyle█▆▆▇▆▆▄▄▃▂▁▂▃▂▁▁15913113014113113299847262466077574248NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:StatementBusinessSegments aiz:GlobalPreneed▅█▂█▅██▆▄▁▆▆▄▆█▆152082115202118127181814172016NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▄▆▆▆▆▅▆▅▆▁▄▆▇▆▇▇█▆▄▅▆▆▇▆█-465028404816221130-154-50587123766611744-2573340845098NA657788NA829586NA39-3372NA858891
 us-gaap:IncomeTaxExpenseBenefit us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:StatementEquityComponents us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:AccumulatedGainLossNetCashFlowHedgeParent▁██100000.0200000.0200000.0NA100000.0200000.0100000.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeTaxExpenseBenefit us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:StatementEquityComponents us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome,us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss█▁▁100NA0-3-110-2-1-3-20-1-25153324425NA144NA25NANANANANANANANANA
 us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementBusinessSegments aiz:GlobalHousing▆▆▆▆▆▅▅▆▆█▁▇█▅▆▇1919101819-24181841-57283452027NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementBusinessSegments aiz:GlobalLifestyle█▇▆▇▇▇▅▄▄▅▂▅▅▅▄▁38332832313423161720319242213-1NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementBusinessSegments aiz:GlobalPreneed▄▆▁▆▄▆▆▆▃▃██▆██▇3404344422664665NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▆▅▃▆▆▄▄▅▅█▃▅▆▄▆▆▇▅▃▄▄▄▆▆▆▅▅▅▅▄▅▆▆▆▅▆▆▁▆▆▆154127-54144165205367106312-571201433114416922065-73250491401431371081281331172412616916316275165141-184141164157
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments aiz:GlobalHousing▇▇▆▇▇▄▆▇▇█▁▇▇▅▆▇7472417172-1219727189-1105661104456NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments aiz:GlobalLifestyle█▆▇▇▆▆▅▄▃▂▂▂▃▁▁▃120971021091009775685542424052342850NANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ████▇▇█▇▃▃▃▂▂▂▃▂▃▂▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁434234429143751431394223741089434434236132427318433240530058295672970930283298043028730043305863084230800315623067330617296682971429348287282948128946281692724327254271152677426779266972639726397NANA
 us-gaap:Assets us-gaap:StatementBusinessSegments aiz:GlobalLifestyle████▇▇▇▇▁▁▁▁22516228932255222113216352125420931205619491949794479106NA8747NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Assets us-gaap:StatementBusinessSegments aiz:GlobalPreneed▇█▇▆▅▄▄▃▂▂▃▁734374407348726471356975704568976836682768976701NA6421NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Assets us-gaap:StatementBusinessSegments aiz:TotalCorporateAndOther9672NA9578973195298909112231097212052107081045010505NA10704NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Liabilities ███▇▇▇█▇▄▃▄▃▃▃▃▂▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁3803738609380613737936765359553820337028279262756128267258342540825611257782519625722255192590226014256722638125330252672457224881245652393224274237612294022210222892208821759219032194921616NANANA
us-gaap:LiabilitiesAndStockholdersEquity ████▇▇█▇▃▃▃▂▂▂▃▂▃▂▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁4342344291437514313942237410894344342361324273184332405300582956729709302832980430287300433058630842308003156230673306172966829714293482872829481289462816927243272542711526774267792669726397NANANA
us-gaap:StockholdersEquity ▆███▇▅▆▆▃▂▁▂▁▁▃▃▃▃▄▄▅▆▆▆▅▄▄▄▆▆537056525658573054405112521953124489427041384224415840984504460845644523468348275128518153425349509648334782479552065185NANANA4873NANANA4633NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss▄██▇▄▁▂▁▂▅▄▄▄▃▅▅▄▄▅▅█▇554856875778549301315266372581557565491459657641525495592627850793NANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:PropertyPlantAndEquipmentNet ██▇▇▇▆▆▆▅▅▅▅▅▅▄▄▄▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▂▂▂438433418419409392381370355347358355348343337327312298286289286277274262255253253250250250246241236242247254259267NANANA
us-gaap:Goodwill ████████▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁23362343233123382331232123122369923917916905894830839834839833841842828841816804785784672638638640640639640639639640621619619NANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▆▆▆▆▇▇██▂▂▂▂▂▁▁▁▂▂▂▃▃▃▃▃▃▃▂▂▂▁▁▂▂▂▂▃▂▂521540547564606622642664275288306316330240263250274277300332331381369370345354294271296262269279303303306348306311NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebt █▁▁▁▁▁220720062006200720062006NANANA1068NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType aiz:SeniorNotes2023,us-gaap:SeniorNotes█▄▄▄▁▁298297297297296296NANANA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType aiz:SeniorNotes2028,us-gaap:SeniorNotes▁▁▁███296296296297297297NANANA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType aiz:SeniorNotes2030,us-gaap:SeniorNotes▄▄▄346346346NANA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType aiz:SeniorNotes2034,us-gaap:SeniorNotes▁▁▁███272272272371371370NANANA370NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType aiz:SeniorNotesMarch2023,us-gaap:SeniorNotes▄▄▄▄▄▄348348348348348348NANANA347NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType aiz:SubordinatedNotes2048,us-gaap:SeniorSubordinatedNotes██▁▁▁▁395395394394394394NANANA0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType aiz:SeniorandSubordinatedSeniorNotes█▁20072006NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest ▃▇███▅▄▄▁▁16293130312120201110NANANA0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▆███▇▅▆▆▃▂▁▂▁▁▃▃▃▃▄▄▅▆▆▆▅▄▄▄▆▆537056525658573054405112521953124489427041384224415840984504460845644523468348275128518153425349509648334782479552065185NANANA4873NANANA4633NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss▄██▇▄▁▂▁▂▅▄▄▄▃▅▅▄▄▅▅█▇554856875778549301315266372581557565491459657641525495592627850793NANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockValue ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄11111111111111111111111111111111111111NANANA
us-gaap:RetainedEarningsAccumulatedDeficit █████▇▇▇▇▇▆▇▆▆▆▆▅▅▅▅▅▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▁▁60615966588259805879575957775846581556975414550054105296529551815044485648244851484048094778465745344415432542154102400139923883373437423596353733893264NANANA
us-gaap:TreasuryStockValue ████▇▇▇▇▇▇▇▇▇▆▆▅▅▅▄▄▄▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▁▁53245267515850935043499249434860486048604721468645754470428840523859360135263500339833163214317731193098300529002726270026662556239622972124204819371764NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▃▅▅▄▃▁▁▁▂▄▄▄▃▃▄▄▄▃▄▄▆▆▇▇▆▅▅▅▇██▇▆▆▆▅▄▄88411405328103-155-97-1375123425623614894328327225118246348548555659764583426386420778830858676597554524381297285NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▆██▆▆▆▆▃▅▇▄▄▅▆▄▁▁▇-123245442479246202282248-75164366-242415125844-346-299360NANANANANANANANANA51NANA1841NANA323183NANANA121
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▅▅▅▄▄▄▁▅▄▄▅▅▅▅▄█▆▅181-6-4-162-447-298-389-159379-299-24562-5894-114-387113319314NANANANANANANANANA-18NANA5118NANA16-166NANANA-306
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▂▂▂▄▃▃▄█▃▃▃▂▂▂▁▃▂▂91-129-168-10222047145300134414322-64-127-319-257-483-19-137-94NANANANANANANANANA670NANA-292-122NANA-358-231NANANA-198
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▆██▆▆▆▆▃▅▇▄▄▅▆▄▁▁▇-123245442479246202282248-75164366-242415125844-346-299360NANANANANANANANANA51NANA1841NANA323183NANANA121
us-gaap:NetIncomeLoss ▆▅▃▆▆▄▄▅▅█▃▅▆▄▆▆▇▅▃▄▄▄▆▆▆▅▅▅▅▄▅▆▆▆▅▆▆▁▆▆▆154127-54144165205367106312-571201433114416922065-73250491401431371081281331172412616916316275165141-184141164157
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments aiz:GlobalHousing▇▇▆▇▇▄▆▇▇█▁▇▇▅▆▇7472417172-1219727189-1105661104456NANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments aiz:GlobalLifestyle█▆▇▇▆▆▅▄▃▂▂▂▃▁▁▃120971021091009775685542424052342850NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss █▇▁▇█▄▄▅▆155128-53142168265367106NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementBusinessSegments aiz:GlobalHousing██▁▇█7472417172NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementBusinessSegments aiz:GlobalLifestyle█▁▃▅▂12097102109100NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ProfitLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings█▇▁▇█▄▄▅▆154127-54144165255367106NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet █▃▅▅▄▇▆▁▇288-104174-1723093-305202NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▅▅▅▄▄▄▁▅▄▄▅▅▅▅▄█▆▅181-6-4-162-447-298-389-159379-299-24562-5894-114-387113319314NANANANANANANANANA-18NANA5118NANA16-166NANANA-306
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▃█▁▄▆▄▃▃▂▂▁▂▂▂▃▄▄▄▅█▄▄21391225322320211618121614181924222527402224NANA13NANANA11NANA227NANA176NANANA13
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▂▂▂▄▃▃▄█▃▃▃▂▂▂▁▃▂▂91-129-168-10222047145300134414322-64-127-319-257-483-19-137-94NANANANANANANANANA670NANA-292-122NANA-358-231NANANA-198
us-gaap:PaymentsForRepurchaseOfCommonStock ▃▄▃▂▂▂▃▁▁▅▂▄▄▆█▇█▃▂▄▃▄561076548505280071323811310518822819924574301038499NANA26NANANA6NANA258103NANA286175NANANA100
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value111111111111111111111111111111111111111
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Par Or Stated Value Per Share

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value161161161161161161161161150
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value59596061616162635252535455555860626566666869707171717375787879828688929497102116117
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 Authorized

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value636165656357545455566062656769707373737678808287909698101108112117
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value606162626357535455566062656768697272727577798286889597101107111116
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.482.01-0.962.242.570.320.761.091.995.79-1.052.182.560.542.42.723.380.99-0.10.480.720.71.941.981.881.481.71.721.470.311.541.961.841.760.81.71.4-1.741.311.471.35
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.431.91-0.962.212.520.320.761.091.965.76-1.052.162.530.542.372.73.340.97-0.10.470.710.691.921.951.861.461.681.71.460.311.521.941.811.730.791.681.39-1.741.31.461.34
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value25652606249925452435231722701831163816761586160015511752183417972147254725342644259826222702260824482400225822372150216021452129207221112061206220362105211321402167
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value522541532528525529538558543578553567550590596579
Percentage of Revenues20.420.821.320.821.622.923.730.533.234.534.935.435.533.732.532.2
Percentage of Revenues20.420.821.320.821.622.923.730.533.234.534.935.435.533.732.532.2
Percentage of Revenues aiz:GlobalHousing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value20011927181118651740168715961138950942874862831961955941
Percentage of Revenues78.074.072.573.371.572.870.362.258.056.255.153.953.654.952.152.4
Percentage of Revenues78.074.072.573.371.572.870.362.258.056.255.153.953.654.952.152.4
Percentage of Revenues aiz:GlobalLifestyle100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value123124123120118122118114112112111111108109111105
Percentage of Revenues4.84.85.04.74.95.35.26.36.86.77.07.07.06.36.15.9
Percentage of Revenues4.84.85.04.74.95.35.26.36.86.77.07.07.06.36.15.9
Percentage of Revenues aiz:GlobalPreneed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-81313051-221719324346596090171172
Percentage of Revenues-3.21.31.22.1-1.00.81.12.02.62.93.73.95.19.49.6
Percentage of Revenues-3.21.31.22.1-1.00.81.12.02.62.93.73.95.19.49.6
Percentage of Revenues aiz:TotalCorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Premiums Earned Net

us-gaap:PremiumsEarnedNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value2083206720152032190418401853133811241165107311151050117412151202141519942058213821592142225721712060194719161850183817921777177717681762183218491906
Percentage of PremiumsEarnedNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues81.279.380.679.978.279.481.673.168.769.567.669.767.767.066.266.965.978.381.280.883.181.783.583.384.286.285.686.085.784.285.786.285.786.586.786.488.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value467478475471460457463449436459423442436450457451
Percentage of PremiumsEarnedNet22.423.123.623.224.224.825.033.638.839.439.439.741.638.437.637.5
Percentage of Revenues18.218.319.018.518.919.720.424.626.627.426.727.628.125.724.925.1
Percentage of Revenues aiz:GlobalHousing89.588.289.289.287.686.385.980.580.379.476.478.079.276.376.777.9

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1597157415251545142813671376874673688636656595697742739
Percentage of PremiumsEarnedNet76.776.275.776.075.074.374.265.359.959.159.358.856.759.361.161.5
Percentage of Revenues62.360.461.060.758.759.060.647.741.141.140.141.038.439.840.541.1
Percentage of Revenues aiz:GlobalLifestyle79.881.784.282.882.181.186.276.870.973.172.776.171.772.577.778.5

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value18141515151514141415141514141516
Percentage of PremiumsEarnedNet0.90.70.70.80.80.80.81.11.31.31.31.41.41.31.31.3
Percentage of Revenues0.70.60.60.60.60.60.60.80.90.90.90.90.90.80.80.9
Percentage of Revenues aiz:GlobalPreneed14.812.012.212.813.412.212.412.413.014.012.613.713.513.413.715.3

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value000000001013120-4
Percentage of PremiumsEarnedNet0.00.00.00.00.00.00.00.00.10.00.20.31.00.0-0.4
Percentage of Revenues0.00.00.00.00.00.00.00.00.10.00.10.20.70.0-0.2
Percentage of Revenues aiz:TotalCorporateAndOther-0.00.00.00.0-0.50.00.50.93.20.22.85.813.50.3-2.5

Net Investment Income

us-gaap:NetInvestmentIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value156185169154166180151135130118132121120135124119135157148167152158162167168159163165169199172172173171176175174
Percentage of NetInvestmentIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.17.16.86.16.87.86.77.47.97.18.47.67.87.76.86.76.36.25.96.35.96.16.06.46.97.07.37.77.99.48.38.48.48.48.38.28.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value22282218252717152016231619191717
Percentage of NetInvestmentIncome14.115.513.212.215.315.311.311.715.513.517.813.815.914.413.614.9
Percentage of Revenues0.91.10.90.71.01.20.80.91.21.01.51.01.21.10.91.0
Percentage of Revenues aiz:GlobalHousing4.25.34.23.64.85.23.22.83.72.84.33.03.53.32.93.1

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value54736256586654363228332626322726
Percentage of NetInvestmentIncome35.139.636.636.635.436.536.027.024.724.125.021.722.024.022.021.9
Percentage of Revenues2.12.82.52.22.42.82.42.02.01.72.11.61.71.91.51.5
Percentage of Revenues aiz:GlobalLifestyle2.73.83.43.03.43.93.43.23.43.03.83.13.23.42.92.8

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value70727370697470676566666564676861
Percentage of NetInvestmentIncome44.939.243.145.841.641.046.250.150.555.850.153.453.250.154.551.7
Percentage of Revenues2.72.82.92.82.83.23.13.74.04.04.24.14.13.93.73.4
Percentage of Revenues aiz:GlobalPreneed56.858.559.058.758.560.659.359.158.859.159.858.459.261.761.258.8

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value9128121391512791310151213
Percentage of NetInvestmentIncome5.97.15.47.87.26.511.29.36.67.211.18.911.59.911.4
Percentage of Revenues0.40.50.30.50.60.40.80.70.50.60.80.70.90.70.8
Percentage of Revenues aiz:TotalCorporateAndOther-11.238.226.925.0-58.657.677.237.018.220.322.617.617.37.27.9

Realized Investment Gains Losses

us-gaap:RealizedInvestmentGainsLosses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value-954141728-46-5201717619-3201381870163619
Percentage of RealizedInvestmentGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-3.70.20.60.71.2-2.0-0.30.10.00.70.70.20.8-0.20.90.60.40.90.40.00.80.20.30.9

us-gaap:StatementBusinessSegments

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-95141728-46-5-110
Percentage of RealizedInvestmentGainsLosses100.0100.0100.0100.0100.0100.0-495.7100.0
Percentage of Revenues-3.70.60.71.2-2.0-0.3-0.60.0
Percentage of Revenues aiz:TotalCorporateAndOther116.447.557.855.9207.7-33.1-57.91.5

Other Income

us-gaap:OtherIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value4163512953363283312573543643663493263403883473283573823173232793162612591961511321171241141111069993939076
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues16.213.511.813.213.514.311.419.322.221.922.020.421.922.219.018.316.715.012.512.210.812.19.79.98.06.75.95.45.85.45.45.24.84.64.44.23.5

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value32353538394458928610310710795120121109
Percentage of OtherIncome7.810.011.911.412.213.522.726.223.828.130.733.028.031.035.033.4
Percentage of Revenues1.31.41.41.51.61.92.65.15.36.26.86.76.16.96.66.1
Percentage of Revenues aiz:GlobalHousing6.26.56.67.27.68.510.916.616.017.819.419.017.320.420.419.0

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value349279224263253253165227244224205180209232185175
Percentage of OtherIncome83.879.576.078.477.176.464.264.367.261.358.955.161.559.753.453.5
Percentage of Revenues13.610.79.010.410.410.97.312.414.913.413.011.213.513.210.19.8
Percentage of Revenues aiz:GlobalLifestyle17.414.512.414.114.515.010.420.025.823.923.520.925.224.119.518.7

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value35363534333333323130303129272827
Percentage of OtherIncome8.410.412.110.210.110.013.09.28.78.28.89.58.77.08.18.3
Percentage of Revenues1.41.41.41.31.41.41.51.81.91.81.91.91.91.61.51.5
Percentage of Revenues aiz:GlobalPreneed28.429.428.828.528.227.228.328.528.226.927.627.927.324.925.225.9

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value00020001858681215
Percentage of OtherIncome0.00.00.00.60.00.10.20.42.31.62.41.82.33.54.8
Percentage of Revenues0.00.00.00.10.00.00.00.10.50.30.50.40.50.70.9
Percentage of Revenues aiz:TotalCorporateAndOther-0.00.30.03.9-0.51.74.14.019.911.813.410.29.87.29.0

Policyholder Benefits And Claims Incurred Net

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value60764770568761475668049041441468241635842843540054310091254126712101123112311491008933916857895872856998988894913905927
Percentage of PolicyholderBenefitsAndClaimsIncurredNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues23.724.928.227.025.232.630.026.825.324.743.026.023.124.523.722.325.339.649.547.946.642.941.644.141.241.341.039.941.741.041.348.447.943.943.242.342.8

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value198217245207198317264187169170436188163227218202
Percentage of PolicyholderBenefitsAndClaimsIncurredNet32.733.534.930.232.441.938.938.240.841.164.045.245.653.150.250.6
Percentage of Revenues7.78.39.88.28.213.711.710.210.310.227.511.810.513.011.911.3
Percentage of Revenues aiz:GlobalHousing38.040.046.139.337.959.949.233.531.129.478.833.229.638.636.735.0

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value336364392412347372352239181183190178148160180161
Percentage of PolicyholderBenefitsAndClaimsIncurredNet55.456.255.660.156.549.251.748.843.844.227.942.841.537.541.440.2
Percentage of Revenues13.114.015.716.214.316.115.513.111.110.912.011.19.69.29.89.0
Percentage of Revenues aiz:GlobalLifestyle16.818.921.622.119.922.122.121.019.119.421.820.717.916.718.917.1

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value72666766686764656668626166636061
Percentage of PolicyholderBenefitsAndClaimsIncurredNet11.910.39.59.611.28.99.513.216.116.59.214.918.514.814.015.3
Percentage of Revenues2.82.62.72.62.82.92.83.54.14.13.93.94.33.63.33.4
Percentage of Revenues aiz:GlobalPreneed58.354.054.455.158.054.854.656.659.660.956.455.661.157.954.858.2

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0000000-2-7-7-11-20-23-24-24
Percentage of PolicyholderBenefitsAndClaimsIncurredNet0.00.00.00.0-0.1-0.1-0.2-0.7-1.9-1.1-2.8-5.6-5.4-5.6-6.0
Percentage of Revenues0.00.00.00.0-0.0-0.0-0.0-0.2-0.5-0.5-0.7-1.3-1.3-1.3-1.3
Percentage of Revenues aiz:TotalCorporateAndOther-0.40.00.30.01.8-3.5-4.6-8.6-17.8-16.5-19.7-33.1-25.9-14.2-14.0

Deferred Policy Acquisition Cost Amortization Expense

General And Administrative Expense

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value90886276483280075073677371974566764665188883380391710759569699211007953884843737742688661642610562565557581604571
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues35.433.130.632.732.932.432.442.243.944.542.140.442.050.745.544.742.742.237.836.735.538.435.333.934.432.633.232.030.930.229.427.327.427.427.528.226.3

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value173170187173180174198229234229235247240279260231
Percentage of SellingGeneralAndAdministrativeExpense19.119.724.520.822.623.227.029.632.630.835.238.337.031.531.328.9
Percentage of Revenues6.86.57.56.87.47.58.812.514.313.714.815.515.516.014.212.9
Percentage of Revenues aiz:GlobalHousing33.231.435.232.834.432.936.941.143.239.742.443.743.747.343.740.1

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value667655496570555514463419415413371340354481470464
Percentage of SellingGeneralAndAdministrativeExpense73.576.065.068.569.568.562.954.257.855.555.752.754.554.256.457.8
Percentage of Revenues26.025.119.922.422.822.220.422.925.424.723.421.322.927.525.625.8
Percentage of Revenues aiz:GlobalLifestyle33.434.027.430.631.930.529.036.843.743.942.539.542.750.149.249.3

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value17171814161514131620131414141411
Percentage of SellingGeneralAndAdministrativeExpense1.92.02.41.82.12.12.01.82.32.82.02.22.31.61.71.5
Percentage of Revenues0.70.70.70.60.70.70.60.81.01.20.80.91.00.80.80.7
Percentage of Revenues aiz:GlobalPreneed13.814.114.712.214.312.812.212.014.518.312.012.813.713.112.911.1

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value49627446466011052814643411098895
Percentage of SellingGeneralAndAdministrativeExpense5.58.19.05.86.28.214.37.311.07.06.86.312.310.611.9
Percentage of Revenues1.92.52.91.92.02.76.13.24.93.02.72.66.34.85.3
Percentage of Revenues aiz:TotalCorporateAndOther-60.9197.8242.590.7-209.9351.2562.9161.2188.7100.473.467.4121.651.755.6

Interest Expense

us-gaap:InterestExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value25253226262626262112121212131415141313131313131317202115151515151515151515
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.01.01.31.01.11.11.21.41.30.70.80.80.80.80.80.80.70.50.50.50.50.50.50.50.70.91.00.70.70.70.70.70.70.70.70.70.7

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value0-32000
Percentage of InterestExpense-2.7-13.86.2-2.6-3.0-1.9
Percentage of Revenues-0.0-0.10.1-0.0-0.0-0.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.0

us-gaap:StatementBusinessSegments

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value253226262626262112121212131415
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.2100.099.8
Percentage of Revenues1.01.31.01.11.11.21.41.30.70.80.80.80.80.80.8
Percentage of Revenues aiz:TotalCorporateAndOther-31.1102.586.051.5-118.5154.1132.065.728.426.120.720.715.48.28.8

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

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value109178-24183217427578136158-10717821554220235337110-3240839022419323517819321020634208264249248115131214226253
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.36.9-1.07.28.91.93.34.38.39.4-6.811.213.93.112.013.115.74.3-1.31.53.23.48.37.49.67.48.69.49.61.69.712.412.011.85.66.410.510.711.8

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value9392529091-15249189131-1678496166484
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest85.651.5-211.449.342.4-35.431.7116.965.782.9155.747.344.629.829.236.0
Percentage of Revenues3.63.52.13.53.8-0.71.15.05.57.8-10.65.36.20.93.54.7
Percentage of Revenues aiz:GlobalHousing17.917.09.817.117.5-2.94.516.416.522.7-30.214.917.42.810.814.6

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value15913113014113113299847262466077574248
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest145.773.4-531.777.460.7307.7131.3107.753.439.7-42.933.635.8104.419.120.6
Percentage of Revenues6.25.05.25.65.45.74.44.64.43.82.93.85.03.32.32.7
Percentage of Revenues aiz:GlobalLifestyle7.96.87.27.67.67.86.27.47.76.75.37.09.35.94.45.2

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value152082115202118127181814172016
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest14.311.3-32.511.87.048.528.224.09.24.5-17.110.56.831.69.47.1
Percentage of Revenues0.60.80.30.90.60.90.91.00.80.41.21.20.91.01.10.9
Percentage of Revenues aiz:GlobalPreneed12.616.36.518.112.817.018.116.411.26.316.616.913.615.718.716.0

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-159-215-70-21-94-69-116-38-43-41527-339385
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest-145.6875.6-38.5-10.0-220.7-91.2-148.5-28.4-27.24.48.612.7-60.542.336.3
Percentage of Revenues-6.2-8.6-2.8-0.9-4.1-3.0-6.3-2.4-2.6-0.31.01.8-1.95.14.8
Percentage of Revenues aiz:TotalCorporateAndOther194.1-686.0-228.9-42.1426.6-401.7-590.4-118.3-99.3-10.125.644.9-36.754.449.6

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value-465028404816221130-154-50587123766611744-257334084509865778882958639-3372858891
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.81.91.11.62.00.71.00.61.9-9.2-3.23.74.61.34.23.75.51.7-1.00.31.31.53.11.94.02.93.54.13.84.54.21.9-1.63.64.04.14.2

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value100000.0200000.0200000.0100000.0200000.0100000.0
Percentage of IncomeTaxExpenseBenefit-0.20.40.70.21.20.4
Percentage of Revenues0.00.00.00.00.00.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value1000-3-110-2-1-3-20-1-2515332442514425
Percentage of IncomeTaxExpenseBenefit-2.81.43.1-1.0-22.1-4.811.52.31.43.6-6.5-2.9-0.9-2.3-3.544.212.1-14.548.76.411.45.54.16.01.65.64.62.65.4
Percentage of Revenues0.10.00.0-0.0-0.2-0.00.10.0-0.1-0.1-0.2-0.1-0.0-0.1-0.12.40.20.10.10.10.20.20.10.20.00.20.20.10.2
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1919101819-24181841-57283452027
Percentage of IncomeTaxExpenseBenefit-41.438.436.446.239.7-17.220.2167.360.7-27.0113.748.447.823.526.342.0
Percentage of Revenues0.80.70.40.70.8-0.10.21.01.12.5-3.61.82.20.31.11.5
Percentage of Revenues aiz:GlobalHousing3.73.52.03.63.7-0.50.93.43.47.2-10.35.06.20.93.44.8

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value38332832313423161720319242213-1
Percentage of IncomeTaxExpenseBenefit-82.067.8100.379.964.3209.2103.5143.456.1-13.0-7.234.034.696.218.0-2.4
Percentage of Revenues1.51.31.11.31.31.51.00.91.01.20.21.21.61.30.8-0.1
Percentage of Revenues aiz:GlobalLifestyle1.91.81.61.71.82.01.51.41.82.10.42.33.02.31.4-0.2

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value3404344422664665
Percentage of IncomeTaxExpenseBenefit-7.18.22.111.86.827.020.236.39.2-1.6-12.110.36.727.48.48.3
Percentage of Revenues0.10.20.00.20.10.20.20.20.20.10.40.40.30.40.30.3
Percentage of Revenues aiz:GlobalPreneed2.73.30.54.02.83.63.93.62.52.25.55.44.45.85.85.2

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-107-11-15-5-19-10-27-7-218-247-103634
Percentage of IncomeTaxExpenseBenefit230.5-38.8-37.8-10.7-119.0-43.9-246.9-25.9141.65.67.410.8-43.247.352.1
Percentage of Revenues-4.2-0.4-0.6-0.2-0.8-0.4-1.5-0.5-13.1-0.20.30.5-0.62.01.9
Percentage of Revenues aiz:TotalCorporateAndOther131.1-35.4-50.0-10.187.4-58.1-141.6-24.2-505.5-6.07.212.7-11.221.120.0

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value154127-54144165205367106312-571201433114416922065-73250491401431371081281331172412616916316275165141-184141164157
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.04.9-2.25.76.80.92.33.76.518.7-3.67.59.31.87.99.410.32.6-0.31.21.91.95.25.55.64.55.76.05.51.25.97.97.97.73.78.07.0-8.86.77.77.3

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value7472417172-1219727189-1105661104456
Percentage of NetIncomeLoss48.057.1-75.949.643.9-61.136.6108.467.228.6192.546.843.034.530.833.6
Percentage of Revenues2.92.81.72.83.0-0.50.94.04.35.3-7.03.54.00.62.43.2
Percentage of Revenues aiz:GlobalHousing14.213.57.813.513.8-2.33.613.013.115.5-19.99.911.21.87.59.8

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value120971021091009775685542424052342850
Percentage of NetIncomeLoss78.276.3-186.375.960.7482.3143.2101.652.613.7-74.333.436.4110.519.629.6
Percentage of Revenues4.73.74.14.34.14.23.33.73.42.62.72.53.42.01.52.8
Percentage of Revenues aiz:GlobalLifestyle6.05.05.65.95.85.84.86.05.94.54.94.76.33.63.05.3

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1216716111616149412129101411
Percentage of NetIncomeLoss8.012.6-13.511.77.180.831.721.99.21.5-21.510.66.934.810.06.7
Percentage of Revenues0.50.60.30.70.50.70.70.80.60.30.80.80.60.60.80.6
Percentage of Revenues aiz:GlobalPreneed10.013.06.014.110.013.414.212.88.84.111.111.59.19.912.910.7

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-52-205-53-19-76-59-88-30175-11119-235751
Percentage of NetIncomeLoss-34.1375.7-37.2-11.7-378.8-111.5-131.9-29.156.23.39.213.6-73.439.630.1
Percentage of Revenues-2.1-8.2-2.1-0.8-3.3-2.6-4.8-1.910.5-0.10.71.3-1.33.12.8
Percentage of Revenues aiz:TotalCorporateAndOther64.3-655.7-174.0-37.7346.4-343.6-448.7-94.2406.2-4.118.432.2-25.533.329.6

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-12-31
Value43423442914375143139422374108943443423613242731843324053005829567297093028329804302873004330586308423080031562306733061729668297142934828728294812894628169272432725427115267742677926697263972639725860
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:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value3890404642724029393739494242393040474809560937443836
Percentage of Assets9.09.19.89.39.39.69.89.312.515.117.312.512.9
Percentage of Assets9.09.19.89.39.39.69.89.312.515.117.312.512.9
Percentage of Assets aiz:GlobalHousing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value225162289322552221132163521254209312056194919497944791068747
Percentage of Assets51.951.751.551.351.251.748.248.529.329.829.230.329.4
Percentage of Assets51.951.751.551.351.251.748.248.529.329.829.230.329.4
Percentage of Assets aiz:GlobalLifestyle100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value7343744073487264713569757045689768366827689767016421
Percentage of Assets16.916.816.816.816.917.016.216.321.121.421.322.321.6
Percentage of Assets16.916.816.816.816.917.016.216.321.121.421.322.321.6
Percentage of Assets aiz:GlobalPreneed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value9672957897319529890911223109721205210708104501050510704
Percentage of Assets22.321.922.622.621.725.825.937.233.632.234.936.0
Percentage of Assets22.321.922.622.621.725.825.937.233.632.234.936.0
Percentage of Assets aiz:TotalCorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value380373860938061373793676535955382033702827926275612826725834254082561125778251962572225519259022601425672263812533025267245722488124565239322427423761229402221022289220882175921903219492161621007
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets87.687.287.086.687.087.587.987.486.186.687.285.985.986.285.184.584.984.984.784.383.483.682.682.582.883.783.783.382.382.181.481.581.881.581.381.882.281.981.2

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value434234429143751431394223741089434434236132427318433240530058295672970930283298043028730043305863084230800315623067330617296682971429348287282948128946281692724327254271152677426779266972639725860
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-31
Value537056525658573054405112521953124489427041384224415840984504460845644523468348275128518153425349509648334782479552065185487346334707
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.412.812.913.312.912.412.012.513.813.412.814.114.113.814.915.515.115.115.315.716.616.417.417.517.216.316.316.717.717.918.017.618.2

us-gaap:StatementEquityComponents

aiz:AccumulatedNoncreditRelatedImpairmentAttributabletoParent



Period End2020-03-312019-12-312019-03-312018-12-31
Value12151415
Percentage of StockholdersEquity0.20.30.30.3
Percentage of Assets0.00.00.00.0
Percentage of Assets aiz:AccumulatedNoncreditRelatedImpairmentAttributabletoParent0.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-69-118-114-113-114-114-99-82-83-83-62-62-63-63-61-61-62-128-128-130-133-136
Percentage of StockholdersEquity-1.3-2.1-2.0-2.0-2.1-2.2-1.9-1.6-1.9-2.0-1.5-1.5-1.5-1.5-1.4-1.3-1.4-2.8-2.7-2.7-2.6-2.6
Percentage of Assets-0.2-0.3-0.3-0.3-0.3-0.3-0.2-0.2-0.3-0.3-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.4-0.4-0.4-0.4-0.4
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value16171715181821202100000
Percentage of StockholdersEquity0.30.30.30.30.30.40.40.40.50.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.10.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value554856875778549301315266372581557565491459657641525495592627850793
Percentage of StockholdersEquity10.315.215.513.610.15.96.05.08.313.613.513.411.811.214.613.911.511.012.713.016.615.3
Percentage of Assets1.31.92.01.81.30.70.70.61.11.81.71.91.71.52.22.21.71.61.92.02.82.5
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-31
Value88411405328103-155-97-137512342562361489432832722511824634854855565976458342638642077883055728668
Percentage of StockholdersEquity1.67.37.25.71.9-3.0-1.9-2.61.25.56.25.63.62.37.37.14.92.65.37.210.710.712.314.311.48.88.18.814.916.011.46.21.4
Percentage of Assets0.20.90.90.80.2-0.4-0.2-0.30.20.70.80.80.50.31.11.10.70.40.81.11.81.82.22.52.01.41.31.52.62.92.11.10.3
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-425-358-390-366-365-375-350-355-272-281-257-284-300-322-289-273-258-270-242-173-193-127
Percentage of StockholdersEquity-7.9-6.3-6.9-6.4-6.7-7.3-6.7-6.7-6.1-6.6-6.2-6.7-7.2-7.9-6.4-5.9-5.7-6.0-5.2-3.6-3.8-2.5
Percentage of Assets-1.0-0.8-0.9-0.8-0.9-0.9-0.8-0.8-0.8-0.9-0.8-0.9-1.0-1.1-1.0-0.9-0.9-0.9-0.8-0.6-0.6-0.4
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cash And Cash Equivalents At Carrying Value

Short Term Investments

Land

Noncurrent Assets

Property Plant And Equipment Gross

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value438433418419409392381370355347358355348343337327312298286289286277274262255253253250250250246241236242247254259267275
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.01.01.01.01.00.90.91.11.11.11.21.21.21.11.11.01.00.90.90.90.90.90.90.90.90.90.90.80.90.90.90.90.90.90.91.01.01.1

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-12-312008-12-31
Value233623432331233823312321231223699239179169058948308398348398338418428288418168047857846726386386406406396406396396406216196199261001
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 Assets5.45.35.35.45.55.75.35.62.82.92.83.03.02.82.82.82.82.82.82.72.72.72.72.62.62.62.32.22.22.22.32.32.32.42.42.42.32.32.33.60.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value521540547564606622642664275288306316330240263250274277300332331381369370345354294271296262269279303303306348306311
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.21.31.31.41.51.51.60.90.90.91.11.10.80.90.80.90.91.01.11.11.21.21.21.21.21.00.91.00.91.01.01.11.11.11.31.11.2

Finite Lived Intangible Assets Net

Deferred Tax Assets Liabilities Net

Long Term Debt

us-gaap:LongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value2207200620062007200620061068
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.14.54.64.74.84.93.4

us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:RevolvingCreditFacility, aiz:CreditFacility2017



Period End2020-03-312019-12-31
Value2000
Percentage of LongTermDebt9.10.0
Percentage of Assets0.50.0
Percentage of Assets us-gaap:RevolvingCreditFacility aiz:CreditFacility20170.00.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

aiz:SeniorNotes2021, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-08-312019-06-302019-03-312018-12-312017-12-31
Value4949493002982982980
Percentage of LongTermDebt2.32.52.50.014.914.914.90.0
Percentage of Assets0.10.10.10.00.70.70.70.0
Percentage of Assets aiz:SeniorNotes2021 us-gaap:SeniorNotes0.00.00.00.00.00.00.00.0

aiz:SeniorNotes2023, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value2982972972972962960
Percentage of LongTermDebt13.514.814.814.814.814.80.0
Percentage of Assets0.70.70.70.70.70.70.0
Percentage of Assets aiz:SeniorNotes2023 us-gaap:SeniorNotes0.00.00.00.00.00.00.0

aiz:SeniorNotes2028, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value2962962962972972970
Percentage of LongTermDebt13.414.814.814.814.814.80.0
Percentage of Assets0.70.70.70.70.70.70.0
Percentage of Assets aiz:SeniorNotes2028 us-gaap:SeniorNotes0.00.00.00.00.00.00.0

aiz:SeniorNotes2030, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302018-12-31
Value3463463460
Percentage of LongTermDebt15.717.317.30.0
Percentage of Assets0.80.80.80.0
Percentage of Assets aiz:SeniorNotes2030 us-gaap:SeniorNotes0.00.00.00.0

aiz:SeniorNotes2034, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value272272272371371370370
Percentage of LongTermDebt12.313.613.618.518.518.534.7
Percentage of Assets0.60.60.60.90.90.91.2
Percentage of Assets aiz:SeniorNotes2034 us-gaap:SeniorNotes0.00.00.00.00.00.00.0

aiz:SeniorNotesMarch2023, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value348348348348348348347
Percentage of LongTermDebt15.817.417.417.417.417.432.6
Percentage of Assets0.80.80.80.80.80.81.1
Percentage of Assets aiz:SeniorNotesMarch2023 us-gaap:SeniorNotes0.00.00.00.00.00.00.0

aiz:SubordinatedNotes2048, us-gaap:SeniorSubordinatedNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value3953953943943943940
Percentage of LongTermDebt17.919.719.719.719.719.70.0
Percentage of Assets0.90.90.90.90.91.00.0
Percentage of Assets aiz:SubordinatedNotes2048 us-gaap:SeniorSubordinatedNotes0.00.00.00.00.00.00.0

us-gaap:LongtermDebtType

aiz:SeniorandSubordinatedSeniorNotes



Period End2020-03-312019-12-31
Value20072006
Percentage of LongTermDebt90.9100.0
Percentage of Assets4.64.5
Percentage of Assets aiz:SeniorandSubordinatedSeniorNotes0.00.0

Minority Interest

us-gaap:MinorityInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value162931303121202011100
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.10.10.10.10.10.00.00.00.00.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-31
Value537056525658573054405112521953124489427041384224415840984504460845644523468348275128518153425349509648334782479552065185487346334707
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.412.812.913.312.912.412.012.513.813.412.814.114.113.814.915.515.115.115.315.716.616.417.417.517.216.316.316.717.717.918.017.618.2

us-gaap:StatementEquityComponents

aiz:AccumulatedNoncreditRelatedImpairmentAttributabletoParent



Period End2020-03-312019-12-312019-03-312018-12-31
Value12151415
Percentage of StockholdersEquity0.20.30.30.3
Percentage of Assets0.00.00.00.0
Percentage of Assets aiz:AccumulatedNoncreditRelatedImpairmentAttributabletoParent0.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-69-118-114-113-114-114-99-82-83-83-62-62-63-63-61-61-62-128-128-130-133-136
Percentage of StockholdersEquity-1.3-2.1-2.0-2.0-2.1-2.2-1.9-1.6-1.9-2.0-1.5-1.5-1.5-1.5-1.4-1.3-1.4-2.8-2.7-2.7-2.6-2.6
Percentage of Assets-0.2-0.3-0.3-0.3-0.3-0.3-0.2-0.2-0.3-0.3-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.4-0.4-0.4-0.4-0.4
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value16171715181821202100000
Percentage of StockholdersEquity0.30.30.30.30.30.40.40.40.50.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.10.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value554856875778549301315266372581557565491459657641525495592627850793
Percentage of StockholdersEquity10.315.215.513.610.15.96.05.08.313.613.513.411.811.214.613.911.511.012.713.016.615.3
Percentage of Assets1.31.92.01.81.30.70.70.61.11.81.71.91.71.52.22.21.71.61.92.02.82.5
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-31
Value88411405328103-155-97-137512342562361489432832722511824634854855565976458342638642077883055728668
Percentage of StockholdersEquity1.67.37.25.71.9-3.0-1.9-2.61.25.56.25.63.62.37.37.14.92.65.37.210.710.712.314.311.48.88.18.814.916.011.46.21.4
Percentage of Assets0.20.90.90.80.2-0.4-0.2-0.30.20.70.80.80.50.31.11.10.70.40.81.11.81.82.22.52.01.41.31.52.62.92.11.10.3
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-425-358-390-366-365-375-350-355-272-281-257-284-300-322-289-273-258-270-242-173-193-127
Percentage of StockholdersEquity-7.9-6.3-6.9-6.4-6.7-7.3-6.7-6.7-6.1-6.6-6.2-6.7-7.2-7.9-6.4-5.9-5.7-6.0-5.2-3.6-3.8-2.5
Percentage of Assets-1.0-0.8-0.9-0.8-0.9-0.9-0.8-0.8-0.8-0.9-0.8-0.9-1.0-1.1-1.0-0.9-0.9-0.9-0.8-0.6-0.6-0.4
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value111111111111111111111111111111111111111
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value606159665882598058795759577758465815569754145500541052965295518150444856482448514840480947784657453444154325421541024001399238833734374235963537338932643054
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.013.513.413.913.914.013.313.817.917.916.718.318.317.817.517.416.716.215.815.715.715.215.615.215.314.914.714.713.913.814.214.313.713.813.413.212.712.411.8

us-gaap:AdjustmentsForNewAccountingPronouncements

aiz:AccountingStandardsUpdate201613



Period End2020-01-01
Value1
Percentage of RetainedEarningsAccumulatedDeficit0.0
Percentage of Assets0.0
Percentage of Assets aiz:AccountingStandardsUpdate2016130.0

Treasury Stock Value

us-gaap:TreasuryStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value532452675158509350434992494348604860486047214686457544704288405238593601352635003398331632143177311930983005290027262700266625562396229721242048193717641231
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.311.911.811.811.912.211.411.515.015.314.615.615.515.014.213.612.712.011.511.311.010.510.510.410.510.410.210.19.29.39.59.48.88.57.97.67.36.74.8

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value88411405328103-155-97-137512342562361489432832722511824634854855565976458342638642077883085867659755452438129728565
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.90.90.80.2-0.4-0.2-0.30.20.70.80.80.50.31.11.10.70.40.81.11.81.82.22.52.01.41.31.52.62.93.02.52.22.02.01.41.11.10.3

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value-123245442479246202282248-75164366-242415125844-346-299360511841323183121
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-4.89.417.718.810.18.712.413.5-4.69.823.1-1.51.68.714.12.5-16.1-11.814.22.48.70.015.79.05.6

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value181-6-4-162-447-298-389-159379-299-24562-5894-114-387113319314-18511816-166-306
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues7.1-0.2-0.2-6.4-18.4-12.9-17.2-87.04.8-17.8-15.53.9-3.85.4-6.2-21.552.87.60.6-0.92.40.90.8-8.2-14.2

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value91-129-168-10222047145300134414322-64-127-319-257-483-19-137-94670-292-122-358-231-198
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.6-5.0-6.7-4.09.12.16.416.482.08.51.4-4.0-8.2-18.3-14.0-26.9-0.9-5.4-3.731.2-13.7-5.9-17.4-11.3-9.2

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value-123245442479246202282248-75164366-242415125844-346-299360511841323183121
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-4.89.417.718.810.18.712.413.5-4.69.823.1-1.51.68.714.12.5-16.1-11.814.22.48.70.015.79.05.6

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value154127-54144165205367106312-571201433114416922065-73250491401431371081281331172412616916316275165141-184141164157
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.04.9-2.25.76.80.92.33.76.518.7-3.67.59.31.87.99.410.32.6-0.31.21.91.95.25.55.64.55.76.05.51.25.97.97.97.73.78.07.0-8.86.77.77.3

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value7472417172-1219727189-1105661104456
Percentage of NetIncomeLoss48.057.1-75.949.643.9-61.136.6108.467.228.6192.546.843.034.530.833.6
Percentage of Revenues2.92.81.72.83.0-0.50.94.04.35.3-7.03.54.00.62.43.2
Percentage of Revenues aiz:GlobalHousing14.213.57.813.513.8-2.33.613.013.115.5-19.99.911.21.87.59.8

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value120971021091009775685542424052342850
Percentage of NetIncomeLoss78.276.3-186.375.960.7482.3143.2101.652.613.7-74.333.436.4110.519.629.6
Percentage of Revenues4.73.74.14.34.14.23.33.73.42.62.72.53.42.01.52.8
Percentage of Revenues aiz:GlobalLifestyle6.05.05.65.95.85.84.86.05.94.54.94.76.33.63.05.3

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1216716111616149412129101411
Percentage of NetIncomeLoss8.012.6-13.511.77.180.831.721.99.21.5-21.510.66.934.810.06.7
Percentage of Revenues0.50.60.30.70.50.70.70.80.60.30.80.80.60.60.80.6
Percentage of Revenues aiz:GlobalPreneed10.013.06.014.110.013.414.212.88.84.111.111.59.19.912.910.7

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-52-205-53-19-76-59-88-30175-11119-235751
Percentage of NetIncomeLoss-34.1375.7-37.2-11.7-378.8-111.5-131.9-29.156.23.39.213.6-73.439.630.1
Percentage of Revenues-2.1-8.2-2.1-0.8-3.3-2.6-4.8-1.910.5-0.10.71.3-1.33.12.8
Percentage of Revenues aiz:TotalCorporateAndOther64.3-655.7-174.0-37.7346.4-343.6-448.7-94.2406.2-4.118.432.2-25.533.329.6

Profit Loss

us-gaap:ProfitLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value155128-53142168265367106
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value03-2000
Percentage of ProfitLoss0.42.64.10.42.30.8

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value423-41-3644232-3
Percentage of ProfitLoss3.11.9-6.8-3.20.9-138.07.57.02.50.00.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value7472417172
Percentage of ProfitLoss47.656.6-78.250.143.1

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value12097102109100
Percentage of ProfitLoss77.675.5-191.976.659.7

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value121671611
Percentage of ProfitLoss7.912.5-13.911.97.0

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-31
Value-51-204-55-16
Percentage of ProfitLoss-33.1384.0-38.6-9.8

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value111-12
Percentage of ProfitLoss0.70.9-3.0-1.11.7

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value154127-54144165255367106
Percentage of ProfitLoss99.399.1103.0101.198.394.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value288-104174-1723093-305202
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value181-6-4-162-447-298-389-159379-299-24562-5894-114-387113319314-18511816-166-306
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues7.1-0.2-0.2-6.4-18.4-12.9-17.2-87.04.8-17.8-15.53.9-3.85.4-6.2-21.552.87.60.6-0.92.40.90.8-8.2-14.2

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value21391225322320211618121614181924222527402224131122717613
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value91-129-168-10222047145300134414322-64-127-319-257-483-19-137-94670-292-122-358-231-198
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.6-5.0-6.7-4.09.12.16.416.482.08.51.4-4.0-8.2-18.3-14.0-26.9-0.9-5.4-3.731.2-13.7-5.9-17.4-11.3-9.2

Proceeds From Issuance Of Long Term Debt

Repayments Of Long Term Debt

Payments Of Dividends

Payments Of Dividends

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value561076548505280071323811310518822819924574301038499266258103286175100
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Repayments Of Long Term Debt

Debt Instrument Interest Rate Stated Percentage

Effective Income Tax Rate Continuing Operations

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

us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:PerformanceShares, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value302274.00.00.0246219.0164957.00.00.0336.00.0237959.012700.010182.0262232.00.00.0357224.00.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.00.00.0100.0100.00.00.0100.00.0100.0100.0100.0100.00.00.0100.00.00.0

us-gaap:RestrictedStockUnitsRSU, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value228412.029195.031554.0193842.091579.032330.0389499.031720.031554.0173645.041756.062116.0247978.011861.054576.0286358.027347.042470.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod75.60.00.078.755.50.00.09440.50.073.0328.8610.194.60.00.080.20.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11151514111817129
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

Deferred Tax Assets Net

Unrecognized Tax Benefits

Deferred Tax Assets Valuation Allowance

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

Operating Lease Right Of Use Asset

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1999186717491490127412541306125323429961032
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value914859869815777740750463346353369387386366344372346382363334341370362354376362405
Percentage of AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value566247575353515049
Percentage of AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired6.27.35.47.06.97.26.810.914.3

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value838777791740705668681395280
Percentage of AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired91.790.491.190.890.890.390.885.480.9

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value181930171718171716
Percentage of AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired2.12.33.52.22.32.62.43.74.8

aiz:AmortizationofDeferredGainonDisposalofBusinesses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-06-302016-03-312015-06-302015-03-31
Value4-2447101215181254733
Percentage of AmortizationofDeferredGainonDisposalofBusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value444710121518
Percentage of AmortizationofDeferredGainonDisposalofBusinesses100.0100.0100.0100.0100.0100.0100.0100.0

aiz:ChangeInDeferredAcquisitionCostsAndValueOfBusinessAcquired



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12320424628015816223316243
Percentage of ChangeInDeferredAcquisitionCostsAndValueOfBusinessAcquired100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:ChangeInInsurancePolicyReservesAndExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5028789246634535448145-579
Percentage of ChangeInInsurancePolicyReservesAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:ChangeInPremiumsAndAccountsReceivable



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-413956431116944-4
Percentage of ChangeInPremiumsAndAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0

aiz:ChangeinNoncreditRelatedImpairmentLossesNet



Period End2020-03-312019-03-31
Value20
Percentage of ChangeinNoncreditRelatedImpairmentLossesNet100.0100.0

aiz:ChangeinNoncreditRelatedImpairmentLossesTax



Period End2020-03-312019-03-31
Value700000.0100000.0
Percentage of ChangeinNoncreditRelatedImpairmentLossesTax100.0100.0

aiz:EquitySecuritiesWithoutReadilyDeterminableFairValueRealizedGainLossOnSale



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value2001030
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueRealizedGainLossOnSale100.00.00.0100.0100.00.0

aiz:IncreaseDecreaseinCommissionsPayable



Period End2020-03-312019-12-312019-03-312018-12-31
Value-10927-227
Percentage of IncreaseDecreaseinCommissionsPayable100.0100.0100.0100.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

aiz:InvestmentChangeInFairValueAfterTax

aiz:Ike



Period End2020-03-312019-12-312019-09-302019-03-31
Value5321240
Percentage of InvestmentChangeInFairValueAfterTax100.0100.0100.0100.0

aiz:InvestmentImpairmentLossesincludedinNetRealizedGainsLosses



Period End2020-03-312019-03-31
Value50
Percentage of InvestmentImpairmentLossesincludedinNetRealizedGainsLosses100.0100.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-03-31
Value10
Percentage of InvestmentImpairmentLossesincludedinNetRealizedGainsLosses20.8100.0

aiz:InvestmentRelatedChargesNetofDerivativeGains



Period End2020-03-312019-03-31
Value10
Percentage of InvestmentRelatedChargesNetofDerivativeGains100.0100.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

aiz:Ike



Period End2020-03-312019-03-31
Value10
Percentage of InvestmentRelatedChargesNetofDerivativeGains100.0100.0

us-gaap:StatementBusinessSegments

aiz:TotalCorporateAndOther



Period End2020-03-312019-03-31
Value10
Percentage of InvestmentRelatedChargesNetofDerivativeGains100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

aiz:NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value0.0
Percentage of NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest0.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value0.0
Percentage of NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest0.0

us-gaap:DomesticCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value13
Percentage of NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest0.0

us-gaap:ForeignCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value0.0
Percentage of NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest0.0

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value0.0
Percentage of NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest0.0

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value2
Percentage of NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest0.0

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-31
Value0.0
Percentage of NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest0.0

us-gaap:USTreasuryAndGovernment, us-gaap:FixedMaturities



Period End2020-03-31
Value0.0
Percentage of NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest0.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-31
Value16
Percentage of NoncreditRelatedImpairmentLossesPortioninOtherComprehensiveLossbeforeTaxIncludingPortionAttributabletoNoncontrollingInterest0.0

aiz:PaymentsToAcquireEquitySecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12381132175039
Percentage of PaymentsToAcquireEquitySecurities100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:DebtInstrument, us-gaap:InvestmentType

aiz:PercentageOfInvestmentOfOverallOwnership

us-gaap:VariableInterestEntityPrimaryBeneficiary, srt:Maximum, aiz:OverallOwnershipinCLOEntities, aiz:CollateralizedLoanObligationFunds



Period End2020-03-31
Value0.088
Percentage of PercentageOfInvestmentOfOverallOwnership100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, srt:Minimum, aiz:OverallOwnershipinCLOEntities, aiz:CollateralizedLoanObligationFunds



Period End2020-03-31
Value0.06
Percentage of PercentageOfInvestmentOfOverallOwnership68.2

us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:DebtInstrument, us-gaap:InvestmentType

aiz:PercentageOfInvestmentOfTheMostSubordinatedTrancheOfCLO

us-gaap:VariableInterestEntityPrimaryBeneficiary, srt:Maximum, aiz:SubordinatedDebtTranches, aiz:CollateralizedLoanObligationFunds



Period End2020-03-31
Value1.0
Percentage of PercentageOfInvestmentOfTheMostSubordinatedTrancheOfCLO100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, srt:Minimum, aiz:SubordinatedDebtTranches, aiz:CollateralizedLoanObligationFunds



Period End2020-03-31
Value0.438
Percentage of PercentageOfInvestmentOfTheMostSubordinatedTrancheOfCLO43.8

aiz:PremiumsandAccountsReceivableAllowanceForCreditLossForeignCurrencyTranslationandOther



Period End2020-03-31
Value-700000.0
Percentage of PremiumsandAccountsReceivableAllowanceForCreditLossForeignCurrencyTranslationandOther100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



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

aiz:GlobalLifestyle



Period End2020-03-31
Value-700000.0
Percentage of PremiumsandAccountsReceivableAllowanceForCreditLossForeignCurrencyTranslationandOther100.0

aiz:GlobalPreneed



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

aiz:PremiumsandAccountsReceivableAllowanceforCreditLossesPeriodIncreaseDecrease



Period End2020-03-31
Value3
Percentage of PremiumsandAccountsReceivableAllowanceforCreditLossesPeriodIncreaseDecrease100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-31
Value500000.0
Percentage of PremiumsandAccountsReceivableAllowanceforCreditLossesPeriodIncreaseDecrease14.7

aiz:GlobalLifestyle



Period End2020-03-31
Value2
Percentage of PremiumsandAccountsReceivableAllowanceforCreditLossesPeriodIncreaseDecrease82.4

aiz:GlobalPreneed



Period End2020-03-31
Value0.0
Percentage of PremiumsandAccountsReceivableAllowanceforCreditLossesPeriodIncreaseDecrease0.0

us-gaap:CorporateAndOther



Period End2020-03-31
Value100000.0
Percentage of PremiumsandAccountsReceivableAllowanceforCreditLossesPeriodIncreaseDecrease2.9

aiz:ProceedsFromTheSaleOfEquitySecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3321041451442
Percentage of ProceedsFromTheSaleOfEquitySecurities100.0100.0100.0100.0100.0100.0100.0100.0

aiz:ProceedsfromSalesandRedemptionsofInvestmentsbySpecialPurposeEntities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value3102653151722781881063600
Percentage of ProceedsfromSalesandRedemptionsofInvestmentsbySpecialPurposeEntities100.0100.0100.0100.0100.0100.0100.0100.00.00.0

aiz:PurchasesofInvestmentsbySpecialPurposeEntities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value258147289384489412533526301398265000
Percentage of PurchasesofInvestmentsbySpecialPurposeEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

aiz:RealizedInvestmentGainsLossRelatedtoSalesandOther



Period End2020-03-312019-03-31
Value-9029
Percentage of RealizedInvestmentGainsLossRelatedtoSalesandOther100.0100.0

us-gaap:InvestmentType

us-gaap:EquitySecurities



Period End2020-03-312019-03-31
Value-4829
Percentage of RealizedInvestmentGainsLossRelatedtoSalesandOther53.6102.7

us-gaap:FixedMaturities



Period End2020-03-312019-03-31
Value70
Percentage of RealizedInvestmentGainsLossRelatedtoSalesandOther-7.8-1.0

us-gaap:Mortgages



Period End2020-03-312019-03-31
Value-10
Percentage of RealizedInvestmentGainsLossRelatedtoSalesandOther1.60.0

us-gaap:OtherInvestments



Period End2020-03-312019-03-31
Value800000.0-100000.0
Percentage of RealizedInvestmentGainsLossRelatedtoSalesandOther-0.9-0.3

us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-03-31
Value-480
Percentage of RealizedInvestmentGainsLossRelatedtoSalesandOther53.6-1.4

aiz:ReceivableAllowanceforCreditLossesPeriodIncreaseDecrease



Period End2020-03-31
Value9
Percentage of ReceivableAllowanceforCreditLossesPeriodIncreaseDecrease100.0

us-gaap:IncomeStatementLocation

us-gaap:SellingGeneralAndAdministrativeExpenses



Period End2020-03-31
Value5
Percentage of ReceivableAllowanceforCreditLossesPeriodIncreaseDecrease58.1

aiz:ReinsuranceRecoverableAllowanceforCreditLossRecovery



Period End2020-03-31
Value-2
Percentage of ReinsuranceRecoverableAllowanceforCreditLossRecovery100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



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

aiz:GlobalLifestyle



Period End2020-03-31
Value-2
Percentage of ReinsuranceRecoverableAllowanceforCreditLossRecovery100.0

aiz:GlobalPreneed



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

us-gaap:CorporateAndOther



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

aiz:ReinsuranceRecoverableCreditLossExpenseReversal



Period End2020-03-31
Value4
Percentage of ReinsuranceRecoverableCreditLossExpenseReversal100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-31
Value0.0
Percentage of ReinsuranceRecoverableCreditLossExpenseReversal0.0

aiz:GlobalLifestyle



Period End2020-03-31
Value1
Percentage of ReinsuranceRecoverableCreditLossExpenseReversal24.4

aiz:GlobalPreneed



Period End2020-03-31
Value0.0
Percentage of ReinsuranceRecoverableCreditLossExpenseReversal0.0

us-gaap:CorporateAndOther



Period End2020-03-31
Value3
Percentage of ReinsuranceRecoverableCreditLossExpenseReversal75.6

aiz:SpecialPurposeEntityProceedsFromIssuanceOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value000018912812322815614615700
Percentage of SpecialPurposeEntityProceedsFromIssuanceOfLongTermDebt0.00.00.00.0100.0100.0100.0100.0100.0100.0100.00.00.0

aiz:SpecialPurposeEntityRepaymentsofDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0000317029529602210
Percentage of SpecialPurposeEntityRepaymentsofDebt100.0100.0100.0100.0100.00.0100.0100.00.0100.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value1115151411181712912119112157614107514
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value1115151411181712912119112157614107514
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:PerformanceShares, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value4664634543-3491284117310
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value67771085666476535554666
Percentage of AllocatedShareBasedCompensationExpense131.2117.9112.1166.7178.7280.6121.4120.0128.6190.6-151.6149.668.5391.4118.366.0128.0470.1422.990.8179.160.8

us-gaap:AwardType, us-gaap:PlanName

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax

us-gaap:PerformanceShares, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value4553523332-2350152
Percentage of AllocatedShareBasedCompensationExpenseNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value56659744443443233
Percentage of AllocatedShareBasedCompensationExpenseNetOfTax120.9114.0105.3158.3169.8266.7130.3122.9128.1190.5-150.0149.568.5388.9122.266.0128.0

us-gaap:AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease



Period End2020-03-31
Value1
Percentage of AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease100.0

us-gaap:AmortizationOfDeferredHedgeGains



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value700000.0600000.0800000.0700000.0700000.0900000.0
Percentage of AmortizationOfDeferredHedgeGains100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:PhantomShareUnitsPSUs



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-30
Value0.0261332.095899.0102594.069624.04171.04171.097574.054021.05301.02909.031698.00.00.00.00.00.00.00.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0

us-gaap:BenefitsLossesAndExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value2456242725232362221822742194175315021518169414211336169716131562181024372566260425152532247724142213206420261944193618641823194619301822188718861919
Percentage of BenefitsLossesAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value428449480438433544514466453447721482454574531494
Percentage of BenefitsLossesAndExpenses17.518.519.018.619.524.023.526.630.229.542.633.934.033.832.931.6

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value18421796168017231608155514961054877879828802754904913892
Percentage of BenefitsLossesAndExpenses75.074.066.673.072.568.468.260.158.457.948.956.456.453.356.657.1

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value10710311598103101969699105929293929088
Percentage of BenefitsLossesAndExpenses4.44.34.64.24.64.54.45.56.66.95.56.57.05.55.65.7

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value7724610173728613671865144331237886
Percentage of BenefitsLossesAndExpenses3.19.84.33.33.23.97.84.85.73.03.12.57.34.95.6

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect



Period End2020-03-312019-03-31
Value13220
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.630.63000000000000010.60.60.60.59999999999999990.560.560.560.55999999999999980.53
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value-16813321369424-3211-122-76290-37208197-202145271327-61-109-16743-543532429394-22365308248202219249151
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value111-121000
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-16713523367427-3111-122-42
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType, us-gaap:FinancialInstrument, us-gaap:GeographicDistribution

us-gaap:ConcentrationRiskPercentage1

us-gaap:Investments, us-gaap:GeographicConcentrationRisk, aiz:ForeignGovernmentFixedMaturitySecurities, aiz:OtherCountries



Period End2020-03-31
Value0.05
Percentage of ConcentrationRiskPercentage1100.0

us-gaap:Investments, us-gaap:GeographicConcentrationRisk, aiz:ForeignGovernmentFixedMaturitySecurities, country:BR



Period End2020-03-31
Value0.13
Percentage of ConcentrationRiskPercentage1260.0

us-gaap:Investments, us-gaap:GeographicConcentrationRisk, aiz:ForeignGovernmentFixedMaturitySecurities, country:CA



Period End2020-03-31
Value0.59
Percentage of ConcentrationRiskPercentage11180.0

us-gaap:Investments, us-gaap:GeographicConcentrationRisk, aiz:ForeignGovernmentFixedMaturitySecurities, country:MX



Period End2020-03-31
Value0.07
Percentage of ConcentrationRiskPercentage1140.0

us-gaap:EquitySecuritiesByIndustry, us-gaap:FinancialInstrument, us-gaap:InternalCreditAssessment, us-gaap:InvestmentType

aiz:EnergySector, us-gaap:CorporateDebtSecurities, us-gaap:InternalInvestmentGrade, us-gaap:FixedMaturities



Period End2020-03-31
Value0.88
Percentage of ConcentrationRiskPercentage11760.0

us-gaap:ProductOrService

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

aiz:ServiceContractsAndSales



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value201414154544
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0

us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

us-gaap:RevolvingCreditFacility, aiz:CreditFacility2017, aiz:JPMorganChaseBankN.A.andBankofAmericaN.A., us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-06-26
Value0.015
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

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

aiz:FloatingRateLoan, us-gaap:LoansPayable, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-03-31
Value0.015
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:DebtSecuritiesGainLossExcludingOtti

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value64-52563
Percentage of DebtSecuritiesGainLossExcludingOtti100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11548-131736-401113
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:NonqualifiedPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value-600000.0-200000.0-300000.0-300000.0-400000.0-300000.0-500000.0-500000.0-300000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:QualifiedPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-700000.00.00.00.0-300000.0-200000.0-200000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses116.7-0.0-0.0-0.075.066.740.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPostretirementHealthCoverage



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value0.0600000.00.00.00.00.00.00.00.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses-0.0-300.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:DefinedBenefitPostretirementHealthCoverage



Period End2020-03-312019-03-31
Value-10
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.00.0

us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:QualifiedPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value7899999
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPostretirementHealthCoverage



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value400000.0500000.0500000.0400000.0500000.0600000.0500000.0800000.0700000.0
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets5.25.75.64.45.66.65.50.00.0

us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:NonqualifiedPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value500000.0800000.0700000.0700000.0700000.0700000.0700000.0700000.0700000.0
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:QualifiedPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value5666555
Percentage of DefinedBenefitPlanInterestCost1020.0775.0942.9928.6842.9828.6828.6

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPostretirementHealthCoverage



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value400000.0600000.0900000.0900000.0800000.0900000.0800000.0900000.0800000.0
Percentage of DefinedBenefitPlanInterestCost80.075.0128.6128.6114.3128.6114.3128.6114.3

us-gaap:RetirementPlanTaxStatus, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:NonqualifiedPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value111111111
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:QualifiedPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-1-2-2-2-2-3-3
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-172.7-250.0-240.0-250.0-186.7-310.0-258.3

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPostretirementHealthCoverage



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value-100000000
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-100.0-50.040.050.020.030.025.08.310.0

us-gaap:DepreciationAmortizationAndAccretionNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value333827302936352430
Percentage of DepreciationAmortizationAndAccretionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value383837383737353029
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value383837383737353029
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsPreferredStockCash



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value44444444
Percentage of DividendsPreferredStockCash100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value444444
Percentage of DividendsPreferredStockCash100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareBasicDistributed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value0.630.61999999999999990.60.620.60.59999999999999990.560.540.560.550.530.550.530.52999999999999980.50.520.50.48999999999999990.30.30.270.270.270.270.250.250.250.210.210.210.180.180.180.160.160.16
Percentage of EarningsPerShareBasicDistributed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareBasicUndistributed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value1.851.37-1.561.621.97-0.329999999999999850.20.551.435.15-1.581.632.030.160000000000000141.92.22.880.49-0.40.180.450.45000000000000021.671.711.631.451.471.261.331.751.660.621.521.231.151.31
Percentage of EarningsPerShareBasicUndistributed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareDilutedDistributed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value0.60.62000000000000010.60.590.570.60000000000000010.560.540.550.54999999999999980.530.540.520.52999999999999980.490.520.490.48000000000000010.30.30.270.270.270.270.250.250.250.210.210.210.180.180.180.160.160.16
Percentage of EarningsPerShareDilutedDistributed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EarningsPerShareDilutedUndistributed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value1.831.3600000000000003-1.561.621.95-0.339999999999999860.20.551.415.11-1.581.622.010.139999999999999681.882.182.850.48-0.40.170.440.42999999999999971.651.681.611.431.451.251.311.731.630.611.51.221.141.3
Percentage of EarningsPerShareDilutedUndistributed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations



Period End2020-03-312019-09-302019-06-302019-03-312018-09-30
Value-16-1010-8
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:PerformanceShares, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value0100000211-113003100213
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value1111110222122111221222
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense220.0140.0155.6216.7237.5375.088.9115.0129.4190.9-154.5150.068.4390.7118.866.0127.9473.2423.190.8179.760.8

us-gaap:EquitySecuritiesFvNiGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-4838630-92-80
Percentage of EquitySecuritiesFvNiGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiRealizedGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0500170-2-2
Percentage of EquitySecuritiesFvNiRealizedGainLoss0.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-48-19729-172-52
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount

us-gaap:OtherInvestments



Period End2020-03-312019-03-31
Value40
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount100.00.0

us-gaap:ConsolidatedEntities, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:RealEstateFunds, us-gaap:FairValueInputsLevel3



Period End2020-03-312019-03-31
Value89
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:RealEstateFunds, us-gaap:FairValueInputsLevel3



Period End2020-03-312019-03-31
Value610
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales100.00.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:FairValueOptionChangesInFairValueGainLoss1

aiz:Ike



Period End2020-03-312019-03-31
Value-110
Percentage of FairValueOptionChangesInFairValueGainLoss1100.0100.0

us-gaap:IncreaseDecreaseInFundsHeldUnderReinsuranceAgreements



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-34-3121-13-21468264
Percentage of IncreaseDecreaseInFundsHeldUnderReinsuranceAgreements100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-185-37334251419994
Percentage of IncreaseDecreaseInIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-9722-5541-363425-59
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReinsurancePayables



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-711250-1332-2517-20
Percentage of IncreaseDecreaseInReinsurancePayables100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReinsuranceRecoverable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-45137344115-200229-193-165-479
Percentage of IncreaseDecreaseInReinsuranceRecoverable100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementClassOfStock

us-gaap:IncrementalCommonSharesAttributableToConversionOfPreferredStock

us-gaap:SeriesDPreferredStock



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value202200000
Percentage of IncrementalCommonSharesAttributableToConversionOfPreferredStock100.00.0100.0100.00.00.0100.00.00.0

us-gaap:AwardType

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

aiz:EmployeeStockPurchaseProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value5148.037626.00.042642.01765.045012.00.040499.00.039500.00.040131.0346.040755.00.046939.00.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.00.0100.0100.0100.00.0100.00.0100.00.0100.0100.0100.00.0100.00.0

aiz:Psu



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value322692.076870.00.0114502.0211477.055534.0179163.0163596.0308418.0-27440.00.0239400.0554953.062391.0566268.0431575.0833611.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements6268.3204.30.0268.511981.7123.40.0404.00.0-69.50.0596.5160391.0153.10.0919.40.0

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value322629585571311718544411213581398365191444429362359
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value296586110930029629723936656120135541251849
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value607647705686614757684491416421688425370447458410526
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-954141729-31-5-110
Percentage of MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MinorityInterestPeriodIncreaseDecrease



Period End2020-03-312019-09-302019-03-312018-09-30
Value-11-120
Percentage of MinorityInterestPeriodIncreaseDecrease100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest



Period End2020-03-312019-09-302019-03-312018-09-30
Value-14060
Percentage of MinorityInterestPeriodIncreaseDecrease127.9-9.1233.3100.0

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-03-31
Value3-1-3
Percentage of MinorityInterestPeriodIncreaseDecrease-27.9109.1-133.3

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value111-121000
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:StatementBusinessSegments

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-31
Value11-12
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value150122-59139161204862106312-57120
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value7472417172-121972
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic49.559.3-69.951.345.2-61.140.2116.7

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value12097102109100977568
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic80.679.2-171.678.462.5482.3157.1109.5

aiz:GlobalPreneed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value121671611161614
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic8.213.1-12.412.17.380.834.823.6

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-57-210-58-24-81-63-93
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic-38.3353.9-41.7-15.0-402.0-132.1-149.8

us-gaap:OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value-90000-10-10-5100-10019-20-21-10-9-3-132-42-260-3
Percentage of OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-302-1997228248-14-47-105-17523-77332-1981611529-97-34-223577-51139171-43-338-501601011817779
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-85-4286069-4-13-28-47-120-44017-6686214262-15-11628-62769862117226-82-54-9-88-39
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-31778230257-71-46-194-151-19229557-2364106-140-111-210-11-114-115174143-39-371-6517465
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

aiz:AccumulatedNoncreditRelatedImpairmentAttributabletoParent



Period End2020-03-312019-03-31
Value-20
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.8-0.1

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value48-4000-15000-22000-40085-3000-5600000000
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax-15.40.00.10.00.021.2-0.0-0.0-0.0115.10.00.00.02.00.00.00.02.2-0.0-0.0-0.049.4-0.00.00.0-0.00.0-0.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value020-20-2002100
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax-0.00.00.6-1.00.12.8-1.1-0.3-14.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-297-16101233247-28-51-110-17727-48036-19719120-66-107-41-229530-60136160-45-346-5715692
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax93.50.0129.2101.296.039.2110.456.8117.7-142.2-18.885.162.783.8489.8113.50.076.637.1109.3-459.40.852.177.9111.4114.993.388.289.7140.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-6631-23-110-254-839-24271521-32-15-1411-28-6820-65-54-5437-185-23-1015-27
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax21.00.0-30.2-0.54.035.0-10.442.7-6.1127.6123.216.537.813.9-399.1-13.70.020.561.2-9.6566.147.646.921.7-12.6-14.26.415.89.0-41.4

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value002-20-20021
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value00000-10005
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

aiz:InterestRateDerivatives



Period End2020-03-312019-09-302019-06-302019-03-31
Value200023
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-6631-23-110-254-839-24271521-32-15-1411-28-6820-65-54-5437-185-23-1015-2714-320
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-323676225258-57-41-189-148-22198853-2330102106-127-102-200-6-103-104180156-34-357-52182793914584
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

aiz:AccumulatedNoncreditRelatedImpairmentAttributabletoParent



Period End2020-03-312019-03-31
Value-20
Percentage of OtherComprehensiveIncomeLossNetOfTax0.8-0.1

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value49-4000-14010-21000-100660222-5512235533
Percentage of OtherComprehensiveIncomeLossNetOfTax-15.2-73.0-0.30.10.125.1-1.9-0.5-0.095.13.10.6-0.40.620.90.462.10.3-2.7-1.3-38.652.9-1.61.11.3-9.5-1.5-10.42.14.7

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value002-20-2002100
Percentage of OtherComprehensiveIncomeLossNetOfTax0.2-12.73.5-1.3-0.14.5-0.20.1-14.20.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-302-1997228248-14-47-105-17523-77332-1981611529-97-34-223577-51139171-43-338-50160101
Percentage of OtherComprehensiveIncomeLossNetOfTax93.5-306.3127.3101.496.224.6112.455.9118.1-104.0-39.583.460.384.91917.1113.728.076.333.9111.2-848.7-7.449.577.5109.2126.694.695.788.0128.7

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-31
Value-323676225258-57-41-189-148-22198853-2330102106-127-102-200-6-103156-52
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-6631-23-110-254-839-24271521-32-15-1411-28-6820-65-54-5437-185-23-1015-27
Percentage of OtherComprehensiveIncomeLossNetOfTax20.6496.8-30.8-0.53.943.5-11.543.8-6.2109.4141.517.740.614.0-1873.9-14.211.122.566.9-10.0974.252.452.021.0-11.5-16.36.719.78.6-34.5

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-494000140-1021000100-660-2-2-255-1-2-2-3-5-533-322
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-131000300011000000-350-1-1-1290-1-1-1-2-2-2-2-2-1-1
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForLossesAndLossAdjustmentExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value6186886466806117476065084526184634263924794844872208
Percentage of PaymentsForLossesAndLossAdjustmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312011-03-312010-03-31
Value00-1-200-2-23-2-2-2324-200-1928
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromShortTermInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value-137132-8911-30-4919621-1162266-32-2-167-9949-55-235331196-95-9199-6365-618575-17
Percentage of PaymentsForProceedsFromShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3838373837373530293028
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsPreferredStockAndPreferenceStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value44444444000
Percentage of PaymentsOfDividendsPreferredStockAndPreferenceStock100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value439526702858873143212949237238138539799011427814126775082346475170859479197612937391322665967
Percentage of PaymentsToAcquireAvailableForSaleSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireMortgageNotesReceivable



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-31
Value3324110616170554919-32118267-136128736-8823
Percentage of PaymentsToAcquireMortgageNotesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireOtherInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-06-302012-03-312011-06-302011-03-31
Value54381311295118-25-85128281940201831645137222062213
Percentage of PaymentsToAcquireOtherInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementClassOfStock

us-gaap:PreferredStockDividendRatePercentage

us-gaap:SeriesDPreferredStock



Period End2020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.0650.00.0650.00.00.00.065
Percentage of PreferredStockDividendRatePercentage100.00.0100.00.00.00.0100.0

us-gaap:PreferredStockDividendsAndOtherAdjustments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value444444440000
Percentage of PreferredStockDividendsAndOtherAdjustments100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:StatementBusinessSegments

aiz:TotalCorporateAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value4444444
Percentage of PreferredStockDividendsAndOtherAdjustments100.0100.0100.0100.0100.0100.0100.0

us-gaap:PreferredStockDividendsPerShareDeclared



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1.631.63999999999999971.631.631.631.631.631.68
Percentage of PreferredStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsAndExcessTaxBenefitFromSharebasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-30
Value-81311318061012
Percentage of ProceedsAndExcessTaxBenefitFromSharebasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfOtherLongTermDebt



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0-11-24181142640403680
Percentage of ProceedsFromIssuanceOfOtherLongTermDebt0.0100.0100.0100.0100.0100.0100.00.0100.00.0

us-gaap:ProceedsFromLinesOfCredit



Period End2020-03-312019-03-31
Value2000
Percentage of ProceedsFromLinesOfCredit100.00.0

us-gaap:CreditFacility, us-gaap:SubsequentEventType

us-gaap:LineOfCredit, us-gaap:SubsequentEvent



Period End2020-06-26
Value200
Percentage of ProceedsFromLinesOfCredit0.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-03-312013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value206229188160135227216220156200183277170149169222197139215179214204525290548275177
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMinorityShareholders



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value000-991070100
Percentage of ProceedsFromMinorityShareholders0.00.00.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromSaleAndCollectionOfMortgageNotesReceivable



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-31
Value1391814-102242156-102333138181421825-16339774550
Percentage of ProceedsFromSaleAndCollectionOfMortgageNotesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-06-302012-03-312011-06-302011-03-312010-03-31
Value22037546766459789711507237426526168358181227465562707513648766452599461675889417898298402
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfOtherInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-06-302012-03-312011-06-302011-03-31
Value30832311104311331-9372693036123225346132211486114
Percentage of ProceedsFromSaleOfOtherInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-09-302019-03-312018-09-302017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value000-10001002812-4-4-4
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit



Period End2020-03-312019-09-302019-03-312018-09-302017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value1000000000000
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax-550.00.0-0.036.4-0.0-0.0200.0-0.0-0.00.0-1.1-0.6-0.6

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value-10000-10000000-4-4-4
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax650.0100.00.0100.063.60.00.0100.0100.0-100.0100.0100.0-2.2101.1100.6100.6

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value5515-1-14-4-5-23264-2403460-9-9-41011-5-13-5-13-13-7-13
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value0000000-100000-33001818-2-2-211-2-2-3-5-5-3-3
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax-1.90.017.6-4.016.75.018.220.0-0.0-25.0-20.7-7.75.013.8-5.7-10.20.030.928.927.453.615.414.535.015.663.040.341.748.828.2

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value03-200000000
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax11.356.9-129.412.0-50.0-4.3-9.1-14.0-0.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value4234-1-13-4-4-24373-20734-9644-6-6-388-3-11-1-8-7-4-9
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax90.643.1211.892.0133.399.390.994.0100.0125.0120.7107.795.086.5105.1108.40.073.671.468.680.680.875.865.484.437.059.558.351.272.2

us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value00000-1000-1000
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value222223273033488476
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:GlobalLifestyle



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value299238188218207221147151173
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1353.41049.3793.3796.4687.4670.4303.9179.6228.1

us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value87.360.00.0105.23123.510.00.0112.320.0112.3291.1280.8280.40.00.061.820.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.00.00.0100.0100.00.00.0100.00.0100.0100.0100.0100.00.00.0100.00.00.0

us-gaap:RestrictedStockUnitsRSU, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value89.58108.9996.1897.78103.4189.5690.73103.6499.7499.4988.1378.2377.1868.550.0399999999999991562.18-0.17999999999999260.05999999999998806
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue102.50.00.092.983.70.00.092.30.088.696.796.896.00.00.0100.60.00.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue

us-gaap:PerformanceShares, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-30
Value2410171250-702982
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value865213216323202311947419212
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue36.5336.80.0123.2184.210.20.0-44.4800.011.90.033.5186.80.00.00.00.00.00.00.00.00.0

us-gaap:PlanName, us-gaap:SubsequentEventType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod

aiz:EmployeeStockPurchasePlan, us-gaap:SubsequentEvent



Period End2020-01-312019-01-312018-01-312017-01-312016-07-312016-01-312015-07-31
Value39645.042950.039853.042947.045649.059102.065320.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-03-312011-03-31
Value-8-20-1-11-11-6-2-10-15-3-10-13-3-1-9-4-4-2
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-03-312011-03-31
Value-8-20-1-11-11-6-2-10-15-3-10-13-3-1-9-4-4-2
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.199.7100.0100.1100.099.8100.0100.1100.0100.0100.1100.0100.1

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value652636694694645752665497440425683430426467466437657
Percentage of SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-451110-7-30418-6-24-45-4-55-19-8-27-140
Percentage of SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-9636-247-26
Percentage of SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense21.955.034.6-93.29.5104.342.240.0-25.7

aiz:GlobalLifestyle



Period End2020-03-312019-03-31
Value-29-31
Percentage of SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense65.6102.6

us-gaap:StatementBusinessSegments, us-gaap:Subsegments

aiz:GlobalPreneedandOther, aiz:AssurantHealth1



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-5-912-1332
Percentage of SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense12.6-94.2-19.2-6.9-74.6-56.9-10.4

us-gaap:TreasuryStockSharesAcquired



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-11-302016-12-312016-10-312016-09-302016-08-312016-09-302016-07-312016-06-302016-05-312016-06-302016-04-302016-03-312016-02-292016-03-312016-01-312015-12-312015-11-302015-12-312015-10-312015-09-302015-08-312015-09-302015-07-312015-06-302015-05-312015-06-302015-04-302015-03-312015-02-282015-03-312015-01-312014-12-312014-11-302014-12-312014-10-312014-09-302014-08-312014-07-312014-06-302014-05-312014-04-302014-03-312014-02-282014-03-312014-01-312013-12-312013-11-302013-10-312013-09-302013-08-312013-07-312013-06-302013-05-312013-04-302013-03-312013-02-282013-01-31
Value00000000010110021112000211031000000000010001000100000000000000000011000
Percentage of TreasuryStockSharesAcquired100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:TreasuryStockValueAcquiredCostMethod



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-03-312011-03-31
Value57108655050498313934111104181235193258742610281101202699173
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-03-312012-03-312011-03-31
Value57108655050498313934111104181235193258742610281101202699173
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UndistributedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value11284-96101123-17123176282-8689114111413618732-2711313012012211910911310010914914758148124124146
Percentage of UndistributedEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value3033001000000000001000001000000
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

aiz:AdvanceRefundedOrEscrowedToMaturitySecurities

us-gaap:USStatesAndPoliticalSubdivisions



Period End2020-03-312019-12-312019-09-302018-12-31
Value37515958
Percentage of AdvanceRefundedOrEscrowedToMaturitySecurities100.0100.0100.0100.0

aiz:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesPercentage



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-03-312012-06-302012-03-31
Value0.920.490.530.430.430.730.760.820.780.60.90.90.90.890.360.270.770.880.90.870.60.630.440.150.850.940.610.320.38
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesPercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:AvailableForSaleSecuritiesGrossUnrealizedLossesPercentage



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-03-312012-06-302012-03-31
Value0.10.010.010.010.020.030.020.020.020.010.020.020.020.020.010.040.060.050.050.030.020.020.020.020.020.030.020.060.04
Percentage of AvailableForSaleSecuritiesGrossUnrealizedLossesPercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

aiz:DeferredUpfrontCommissionsandOtherCosts

aiz:ServiceContractsAndSales



Period End2020-03-312019-12-31
Value1825
Percentage of DeferredUpfrontCommissionsandOtherCosts100.0100.0

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

aiz:FundsHeldunderReinsuranceAgreementsLiabilityFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value352319287308294272279347179
Percentage of FundsHeldunderReinsuranceAgreementsLiabilityFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value352319287308294272279347179
Percentage of FundsHeldunderReinsuranceAgreementsLiabilityFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value352319287308294272279347179
Percentage of FundsHeldunderReinsuranceAgreementsLiabilityFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios

aiz:LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatio



Period End2020-03-31
Value245
Percentage of LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear100.0

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.0xand1.5



Period End2020-03-31
Value67
Percentage of LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear27.6

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.5and2.0



Period End2020-03-31
Value60
Percentage of LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear24.7

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioGreaterthan2.0



Period End2020-03-31
Value112
Percentage of LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear45.9

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioLessThan1.0



Period End2020-03-31
Value4
Percentage of LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear1.8

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio71to80Percent



Period End2020-03-31
Value3
Percentage of LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear1.3

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio81to95Percent



Period End2020-03-31
Value4
Percentage of LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear1.9

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatioLessthan70Percent



Period End2020-03-31
Value237
Percentage of LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear96.8

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatios



Period End2020-03-31
Value245
Percentage of LoansandLeasesReceivableOriginatedFiveorMoreYearsbeforeLatestFiscalYear100.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios

aiz:LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatio



Period End2020-03-31
Value99
Percentage of LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear100.0

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.0xand1.5



Period End2020-03-31
Value9
Percentage of LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear10.0

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.5and2.0



Period End2020-03-31
Value21
Percentage of LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear21.2

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioGreaterthan2.0



Period End2020-03-31
Value68
Percentage of LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear68.8

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioLessThan1.0



Period End2020-03-31
Value0.0
Percentage of LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear0.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio71to80Percent



Period End2020-03-31
Value7
Percentage of LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear7.1

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio81to95Percent



Period End2020-03-31
Value0.0
Percentage of LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatioLessthan70Percent



Period End2020-03-31
Value92
Percentage of LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear92.9

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatios



Period End2020-03-31
Value99
Percentage of LoansandLeasesReceivableOriginatedFourYearsbeforeLatestFiscalYear100.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios

aiz:LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatio



Period End2020-03-31
Value147
Percentage of LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear100.0

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.0xand1.5



Period End2020-03-31
Value26
Percentage of LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear18.0

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.5and2.0



Period End2020-03-31
Value48
Percentage of LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear32.6

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioGreaterthan2.0



Period End2020-03-31
Value73
Percentage of LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear49.4

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioLessThan1.0



Period End2020-03-31
Value0.0
Percentage of LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear0.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio71to80Percent



Period End2020-03-31
Value0.0
Percentage of LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio81to95Percent



Period End2020-03-31
Value0.0
Percentage of LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatioLessthan70Percent



Period End2020-03-31
Value147
Percentage of LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear100.0

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatios



Period End2020-03-31
Value147
Percentage of LoansandLeasesReceivableOriginatedThreeYearsbeforeLatestFiscalYear100.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios

aiz:LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatio



Period End2020-03-31
Value189
Percentage of LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear100.0

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.0xand1.5



Period End2020-03-31
Value43
Percentage of LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear23.2

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.5and2.0



Period End2020-03-31
Value73
Percentage of LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear38.7

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioGreaterthan2.0



Period End2020-03-31
Value72
Percentage of LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear38.1

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioLessThan1.0



Period End2020-03-31
Value0.0
Percentage of LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear0.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio71to80Percent



Period End2020-03-31
Value0.0
Percentage of LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio81to95Percent



Period End2020-03-31
Value0.0
Percentage of LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatioLessthan70Percent



Period End2020-03-31
Value189
Percentage of LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear100.0

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatios



Period End2020-03-31
Value189
Percentage of LoansandLeasesReceivableOriginatedTwoYearsbeforeLatestFiscalYear100.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios

aiz:LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatio



Period End2020-03-31
Value117
Percentage of LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear100.0

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.0xand1.5



Period End2020-03-31
Value37
Percentage of LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear32.2

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.5and2.0



Period End2020-03-31
Value41
Percentage of LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear35.6

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioGreaterthan2.0



Period End2020-03-31
Value37
Percentage of LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear32.1

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioLessThan1.0



Period End2020-03-31
Value0.0
Percentage of LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear0.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio71to80Percent



Period End2020-03-31
Value7
Percentage of LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear6.1

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio81to95Percent



Period End2020-03-31
Value0.0
Percentage of LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatioLessthan70Percent



Period End2020-03-31
Value109
Percentage of LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear93.9

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatios



Period End2020-03-31
Value117
Percentage of LoansandLeasesReceivableOriginatedinFiscalYearbeforeLatestFiscalYear100.0

us-gaap:FinancialInstrument

aiz:MaximumIndividualStateExposure

us-gaap:USStatesAndPoliticalSubdivisions



Period End2020-03-312019-12-312019-09-302018-12-31
Value0.0030.0030.0030.004
Percentage of MaximumIndividualStateExposure100.0100.0100.0100.0

aiz:NumberOfAvailableForSaleSecuritiesComprisingGrossUnrealizedLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1277.0330.0287.0332.0899.02642.02501.03145.01151.0686.0593.0482.0603.0796.0239.0232.0380.0884.0637.0642.0238.0385.0477.0296.0475.0667.0662.0680.0224.0238.0167000.0217000.0336000.0389000.0474000.0369000.0457000.0
Percentage of NumberOfAvailableForSaleSecuritiesComprisingGrossUnrealizedLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

aiz:PercentageOfRevenueSecurities

us-gaap:USStatesAndPoliticalSubdivisions



Period End2020-03-312019-12-312019-09-302018-12-31
Value0.580.60.560.56
Percentage of PercentageOfRevenueSecurities100.0100.0100.0100.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios

aiz:PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatio



Period End2020-03-31
Value1.0
Percentage of PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss100.0

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.0xand1.5



Period End2020-03-31
Value0.233
Percentage of PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss23.3

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.5and2.0



Period End2020-03-31
Value0.307
Percentage of PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss30.7

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioGreaterthan2.0



Period End2020-03-31
Value0.455
Percentage of PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss45.5

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioLessThan1.0



Period End2020-03-31
Value0.005
Percentage of PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss0.5

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio71to80Percent



Period End2020-03-31
Value0.022
Percentage of PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss2.2

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio81to95Percent



Period End2020-03-31
Value0.005
Percentage of PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss0.5

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatioLessthan70Percent



Period End2020-03-31
Value0.973
Percentage of PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss97.3

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatios



Period End2020-03-31
Value1.0
Percentage of PercentageofLoansandLeasesReceivablebeforeAllowanceforCreditLoss100.0

us-gaap:CreditRatingStandardPoors

aiz:PercentageofReinsuranceRecoverablesSubjecttoAllowance

aiz:StandardPoorsAorBetterRating



Period End2020-03-31
Value0.71
Percentage of PercentageofReinsuranceRecoverablesSubjecttoAllowance100.0

aiz:StandardPoorsBBBorBBRating



Period End2020-03-31
Value0.23
Percentage of PercentageofReinsuranceRecoverablesSubjecttoAllowance32.4

aiz:StandardPoorsNoRating



Period End2020-03-31
Value0.06
Percentage of PercentageofReinsuranceRecoverablesSubjecttoAllowance8.5

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

aiz:PolicyReservesUnderInvestmentProductsFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value552588574568556556598608642
Percentage of PolicyReservesUnderInvestmentProductsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value527551556564567570605608634
Percentage of PolicyReservesUnderInvestmentProductsFairValueDisclosure95.393.796.899.2102.0102.5101.3100.098.7

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value552588574568556556598608642
Percentage of PolicyReservesUnderInvestmentProductsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:PremiumsandAccountsReceivablesAllowanceForCreditLoss



Period End2020-03-312019-12-31
Value1915
Percentage of PremiumsandAccountsReceivablesAllowanceForCreditLoss100.0100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-31
Value10
Percentage of PremiumsandAccountsReceivablesAllowanceForCreditLoss6.11.3

aiz:GlobalLifestyle



Period End2020-03-312019-12-31
Value1714
Percentage of PremiumsandAccountsReceivablesAllowanceForCreditLoss88.992.8

us-gaap:CorporateAndOther



Period End2020-03-312019-12-31
Value500000.0400000.0
Percentage of PremiumsandAccountsReceivablesAllowanceForCreditLoss2.52.6

aiz:ReceivableAllowanceforCreditLoss



Period End2020-03-312019-12-31
Value5220
Percentage of ReceivableAllowanceforCreditLoss100.0100.0

aiz:CumulativeEffectPeriodOfAdoption

aiz:CumulativeEffectPeriodOfAdoptionAdjustment



Period End2020-01-01
Value46
Percentage of ReceivableAllowanceforCreditLoss0.0

aiz:ReceivablenetofAllowanceforCreditLoss



Period End2020-01-01
Value12101
Percentage of ReceivablenetofAllowanceforCreditLoss100.0

aiz:CumulativeEffectPeriodOfAdoption

aiz:CumulativeEffectPeriodOfAdoptionAdjustedBalance



Period End2020-01-01
Value12075
Percentage of ReceivablenetofAllowanceforCreditLoss99.8

aiz:CumulativeEffectPeriodOfAdoptionAdjustment



Period End2020-01-01
Value-25
Percentage of ReceivablenetofAllowanceforCreditLoss-0.2

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

aiz:SeparateAccountLiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1335162315481621158714001635
Percentage of SeparateAccountLiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value152182166177179175165
Percentage of SeparateAccountLiabilitiesFairValueDisclosure11.411.210.811.011.312.510.1

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1487180617151799176615751800
Percentage of SeparateAccountLiabilitiesFairValueDisclosure111.4111.2110.8111.0111.3112.5110.1

aiz:VariableInterestEntityConsolidatedAssetsCash



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3532648411062125353069
Percentage of VariableInterestEntityConsolidatedAssetsCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:VariableInterestEntityConsolidatedAssetsInvestmentsAtFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value18371957199619771909157614501200984655
Percentage of VariableInterestEntityConsolidatedAssetsInvestmentsAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:VariableInterestEntityConsolidatedAssetsOtherReceivables



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value64291624384623692721
Percentage of VariableInterestEntityConsolidatedAssetsOtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:VariableInterestEntityConsolidatedLiabilitiesCollateralizedLoanObligationNotesAtFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1613160316101616160313161177941612450
Percentage of VariableInterestEntityConsolidatedLiabilitiesCollateralizedLoanObligationNotesAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:VariableInterestEntityConsolidatedLiabilitiesOtherLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value918396145197138196145218122
Percentage of VariableInterestEntityConsolidatedLiabilitiesOtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value243527582637259824612187221226101855204623632012189319852009187618252049218822012241267517931816167216621753153715821514160814131403148614421397136813531388
Percentage of AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedInvestmentIncomeReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value146131127126130125133136108105114105111110116111114129136133144138151149153145156150162149162153163153159148161147155
Percentage of AccruedInvestmentIncomeReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedSalesCommissionCurrentAndNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value417540511447336338316308344365377374391386382357354393435380451487596584463429361348345339282216211260259260264275218
Percentage of AccruedSalesCommissionCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdditionalPaidInCapitalCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value454045374524450944964495447844593478319731863172317331753168315031523148313831263135313131173104309530873075305930513052304330283028302530163003299729932962
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value033100111
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value710131062000
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax3900.0329.0460.0693.3942.9440.033.325.010.5

us-gaap:DomesticCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value613818829690490315345365602
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax306900.026416.127663.346006.770014.363140.028825.030483.331689.5

us-gaap:ForeignCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value173255270242178110121138188
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax86500.08238.79016.716140.025471.422140.010091.711533.39926.3

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value107941081028458516272
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax53950.03041.93626.76833.312014.311760.04266.75233.33805.3

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value915261523321121632
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax45700.01690.32060.03466.74714.34300.01025.01400.01710.5

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value262629262117151724
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax13050.0851.6986.71746.73114.33520.01300.01491.71263.2

us-gaap:USTreasuryAndGovernment, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value756654223
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax3950.0171.0213.3406.7757.1880.0166.7216.7168.4

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value102812661323113081953154960571892486588777273410911053866845
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax514050.040838.744126.775393.3117128.6106280.045808.350483.30.048673.70.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesByIndustry, us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

aiz:EnergySector, us-gaap:CorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value74
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value4822249100
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax64.60.00.00.00.00.00.00.00.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value600011320
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax8.10.00.00.00.00.00.00.00.0

us-gaap:DomesticCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value145223125944435
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax196.10.00.00.00.00.00.00.00.0

us-gaap:ForeignCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3000021817114
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax41.20.00.00.00.00.00.00.00.0

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value000003310
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.70.00.00.00.00.00.00.00.0

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value111251429217
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax1.30.00.00.00.00.00.00.00.0

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value000000010
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.00.00.00.00.00.00.0

us-gaap:USTreasuryAndGovernment, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value000001321
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.00.00.00.00.00.00.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value231879271081028555182114213271857100
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax312.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value10874110641110411107110421083410669107778530875688888706873988708835870982309470942697981001910048104821060110580105201064510567107911072812952
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value477502481517485513502494188
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis4.44.54.34.74.44.74.74.62.2

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2192122262222067925625638
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis2.01.92.02.01.90.72.42.40.4

us-gaap:DomesticCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value584256795757568455875337520751984774
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis53.751.351.951.250.649.348.848.254.5

us-gaap:ForeignCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value200521122106213020982028204720821663
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis18.419.119.019.219.018.719.219.319.0

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value836916873878877856846858524
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis7.78.37.97.97.97.97.98.06.0

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value115912351235121212421399124812411084
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis10.711.211.110.911.212.911.711.512.4

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value201216234236236238226461302
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis1.92.02.12.12.12.22.14.33.5

us-gaap:USTreasuryAndGovernment, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value132188187225308381333184180
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis1.21.71.72.02.83.53.11.72.1

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value10874110641110411107110421083410669107778530875688888706873988708835870982309470
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost

us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value477502481517485513502494
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnderlyingAssetClass

us-gaap:CommercialMortgageBackedSecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value219226222206256256383840413839404320222729344456505457615861647075
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost45.947.143.142.651.051.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResidentialMortgageBackedSecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1159123512121242124812411055108411141122113710718938788809539831018973911949890910919899778733714721782
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost242.7256.4234.5255.6248.4250.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue

us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value429503482516482504502495
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnderlyingAssetClass

us-gaap:CommercialMortgageBackedSecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value221240232211253253363839413738414421222730354658525760646165697681
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue51.549.845.043.950.451.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResidentialMortgageBackedSecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value124912961262126912311236105711091147115711671101956947941998104010691042968997941949947932812788771782843
Percentage of AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue290.8268.8244.5263.1245.0249.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value11670123221242012228118341125711116112979194966297329579949195729919974490391021510313107451138711263116241181611595112911144711423121431217112043112141132211192109781063710745106129966
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

us-gaap:ContractWithCustomerAssetNet

aiz:ServiceContractsAndSales



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value188185183175169183
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

us-gaap:ContractWithCustomerLiability

aiz:ServiceContractsAndSales



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value888789939588
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0

us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption



Period End2020-01-012018-03-312018-01-012017-12-312017-03-31
Value-20-33770
Percentage of CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption100.0100.0100.0100.00.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-01-012018-01-012017-12-31
Value-20-40-40
Percentage of CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption100.0-541.3-541.3

us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:DebtInstrumentFaceAmount

us-gaap:RevolvingCreditFacility, aiz:CreditFacility2017



Period End2020-03-312019-12-31
Value2000
Percentage of DebtInstrumentFaceAmount100.00.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

aiz:SeniorNotes2021, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-312018-03-27
Value505050300300300300300
Percentage of DebtInstrumentFaceAmount25.00.00.00.00.00.00.00.0

aiz:SeniorNotes2030, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-08-312018-12-31
Value3503503503500
Percentage of DebtInstrumentFaceAmount175.00.00.00.00.0

aiz:SeniorNotes2034, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value275275275375375375
Percentage of DebtInstrumentFaceAmount137.50.00.00.00.00.0

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

us-gaap:DebtInstrumentFairValue

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value232021902189216920972058208020841174
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value220720062006200720062006200520041068
Percentage of DebtInstrumentFairValue95.191.691.692.595.797.496.496.291.0

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value232021902189216920972058208020841174
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:GeographicDistribution

us-gaap:DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax

aiz:CorporateFixedMaturityandEquitySecurities, srt:Europe



Period End2020-03-312019-12-31
Value5682
Percentage of DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value79105712347020
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger100.0100.0100.0100.0100.00.0100.00.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3441820121112
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger4.94.16.677.942.10.0540.90.0

us-gaap:DomesticCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value9149622061738749
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger12.013.712.8265.1435.40.03963.60.0

us-gaap:ForeignCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value07722691499963
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger0.07.110.394.9146.50.04531.80.0

us-gaap:ForeignGovernmentDebt, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value00000966
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger0.00.00.00.00.00.0304.50.0

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value18294148346309187161
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger1.478.6132.6632.3728.80.08536.40.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value94213225321766746460331
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger118.3203.5316.51366.01613.10.020909.10.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value152100000
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss100.0100.0100.0100.0100.00.0100.00.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value00001011
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss2.523.841.7233.3400.00.01300.00.0

us-gaap:DomesticCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value200261052
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss17.633.358.3700.01500.00.05800.00.0

us-gaap:ForeignCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value00001531
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.09.516.7133.3375.00.03900.00.0

us-gaap:ForeignGovernmentDebt, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.00.00.00.00.0200000.0300000.0200000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.00.00.00.00.00.0300.00.0

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0002511118
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.638.166.7666.71425.00.011500.00.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1943515282415
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss120.8204.8291.71866.73975.00.024200.00.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3446693206282370202225
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value512011029199181
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months15.029.91.80.90.07.998.880.3

us-gaap:DomesticCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value13498711064232186021782037
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months391.6130.8117.331.182.5502.01077.3904.1

us-gaap:ForeignCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value510451832102706879760
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months148.168.519.815.736.4190.7434.9337.5

us-gaap:ForeignGovernmentDebt, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value34115114988136378296
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months10.0172.912.324.131.436.8187.2131.7

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1882661118378778677
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months5.4123.371.15.66.6102.1384.9300.8

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2308440302366724352449104443
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months670.2658.1322.3177.3256.9951.02428.41971.3

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value320113900
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value50000021
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss17.4150.07.15.30.07.3244.4242.9

us-gaap:DomesticCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1421216493840
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss445.2700.0142.984.2162.2515.64277.85842.9

us-gaap:ForeignCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value300001121310
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss95.3350.014.321.137.8134.41477.81442.9

us-gaap:ForeignGovernmentDebt, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value00000221
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss1.6400.07.15.318.929.2311.1200.0

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0000031712
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss2.8300.014.35.32.738.51944.41800.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value21244411797869
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss662.32050.0285.7221.1321.6827.18677.89971.4

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value424172164230329370204225
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value55246202041211193
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition13.114.13.98.76.111.3103.685.7

us-gaap:DomesticCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1358101119126439203322652087
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition320.259.272.255.0133.4548.71108.4926.1

us-gaap:ForeignCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value510532554172856979824
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition120.231.015.723.852.3231.0479.0365.7

us-gaap:ForeignGovernmentDebt, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value34115114988145385303
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition8.167.37.021.626.939.3188.5134.6

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value19165161160364687966839
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition4.696.097.669.6110.7185.6472.6372.2

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value24036545276871491427053704775
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition566.3380.3319.8298.8452.41152.42627.32118.5

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value482224910
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value60001132
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss12.534.823.136.439.016.7350.0400.0

us-gaap:DomesticCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value14522312594443
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss303.591.3103.8168.2292.7621.94430.06242.9

us-gaap:ForeignCorporateDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value300002181711
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss63.839.115.436.470.7188.51720.01700.0

us-gaap:ForeignGovernmentDebt, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value00000331
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss1.034.83.84.517.131.2310.0228.6

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value11125142921
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss2.160.938.595.5141.5154.22900.03057.1

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2318792710810285
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss482.9365.2288.5445.5678.01128.110230.012185.7

us-gaap:DeferredPolicyAcquisitionCosts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value7201666861615767537151034270388236463484348233263290326730343001307931503126307828272957327732573158312830902959288728612760263525582632256325652526249325042650
Percentage of DeferredPolicyAcquisitionCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFundedPercentage



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value1.091.091.091.091.11.11.131.121.111.111.121.121.111.111.061.041.060.940.930.990.970.970.990.990.991.02
Percentage of DefinedBenefitPlanFundedPercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value64667063706585837881838580-22513345-185-61-8-31-1849-6-6-119102177107-253
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:PerformanceShares, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-31
Value4332384429141721232936172226311619241715
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU, aiz:LongTermEquityIncentivePlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-31
Value3425313736394717202428162124261218241414
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized78.879.081.784.0125.3279.4273.382.388.282.878.293.797.195.181.876.491.096.779.095.4

us-gaap:EquitySecuritiesFvNi



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value349388406392388378
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:RealEstateFunds, us-gaap:FairValueInputsLevel3



Period End2020-03-312019-12-312019-03-312018-12-31
Value54107121112
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue100.0100.0100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FinancialLiabilitiesFairValueDisclosure

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-31
Value16131603
Percentage of FinancialLiabilitiesFairValueDisclosure100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, aiz:OtherLiabilitiesType

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CollateralizedLoanObligations



Period End2020-03-312019-12-31
Value16131603
Percentage of FinancialLiabilitiesFairValueDisclosure100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:FairValueByMeasurementFrequency

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-31
Value16131603
Percentage of FinancialLiabilitiesFairValueDisclosure100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:FairValueByMeasurementFrequency, aiz:OtherLiabilitiesType

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:FairValueMeasurementsRecurring, us-gaap:CollateralizedLoanObligations



Period End2020-03-312019-12-31
Value16131603
Percentage of FinancialLiabilitiesFairValueDisclosure100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1397169416151692165314631706
Percentage of FinancialLiabilitiesFairValueDisclosure86.6105.70.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value265284166177180176166
Percentage of FinancialLiabilitiesFairValueDisclosure16.417.70.00.00.00.00.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value008053414156
Percentage of FinancialLiabilitiesFairValueDisclosure0.00.00.00.00.00.00.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1662197818621923187416801929
Percentage of FinancialLiabilitiesFairValueDisclosure103.0123.40.00.00.00.00.0

us-gaap:FundsHeldUnderReinsuranceAgreementsLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value35231928730829427227934717317914215312811110610510194939587757878797670586061606063646761646567
Percentage of FundsHeldUnderReinsuranceAgreementsLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Investments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value136241456714552144291398313403134981338910962115531167611640114531147912033119611142512994134991370514172141311460814661146171424414873146481488214976147641415514133140261393613593139111350513157
Percentage of Investments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:InvestmentsFairValueDisclosure

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:Cash



Period End2020-03-312019-12-31
Value3532
Percentage of InvestmentsFairValueDisclosure100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-31
Value17831850
Percentage of InvestmentsFairValueDisclosure5080.65625.2

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, us-gaap:RealEstateFunds



Period End2020-03-312019-12-31
Value54107
Percentage of InvestmentsFairValueDisclosure155.0325.8

us-gaap:ConsolidatedEntities, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:FairValueMeasurementsRecurring, us-gaap:Cash



Period End2020-03-312019-12-31
Value3532
Percentage of InvestmentsFairValueDisclosure100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-31
Value17831850
Percentage of InvestmentsFairValueDisclosure5080.65625.2

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:FairValueMeasurementsRecurring, us-gaap:RealEstateFunds



Period End2020-03-312019-12-31
Value54107
Percentage of InvestmentsFairValueDisclosure155.0325.8

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

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value303031313333343536
Percentage of InvestmentsFairValueDisclosure87.293.30.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value10610910710710891605948
Percentage of InvestmentsFairValueDisclosure304.6332.20.00.00.00.00.00.00.0

us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value137140138139141124949484
Percentage of InvestmentsFairValueDisclosure391.7425.50.00.00.00.00.00.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value137140138139141124949484
Percentage of InvestmentsFairValueDisclosure391.7425.50.00.00.00.00.00.00.0

us-gaap:LettersOfCreditOutstandingAmount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value121212121213161617181818181712121919202020171718171755211919192424242424
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value352319287308294272279347179
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value232021902189216920972058208020841174
Percentage of LiabilitiesFairValueDisclosure658.0685.8760.4704.3713.4756.9745.8600.7653.2

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value552588574568556556598608642
Percentage of LiabilitiesFairValueDisclosure156.8184.2199.7184.7189.4204.7214.3175.3357.3

us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value308728772850287928682848288929601882
Percentage of LiabilitiesFairValueDisclosure875.5901.0990.1935.0975.61047.31035.8852.91046.9

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value322530983051304629482887295730401996
Percentage of LiabilitiesFairValueDisclosure914.8970.11060.1989.01002.71061.61060.1876.01110.5

us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-05-312018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value26692687287127222750281337643503420319437824794309330753301339732763341389640804010378436983577355334493389342934173960
Percentage of LiabilityForClaimsAndClaimsAdjustmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilityForFuturePolicyBenefits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value971198079564944593109240104641038610384103971043610278101631011210042974897239466946594899417948388138785867186468621852685068513848184128456826982178212816681057349
Percentage of LiabilityForFuturePolicyBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value776787828769763760752678552588785560560583614640717240024442248
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LineOfCreditFacility

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity

us-gaap:RevolvingCreditFacility, aiz:CreditFacility2017, aiz:JPMorganChaseBankN.A.andBankofAmericaN.A.



Period End2020-03-31
Value450
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity100.0

us-gaap:CreditFacility

us-gaap:LinesOfCreditCurrent

us-gaap:LetterOfCredit



Period End2020-03-31
Value9
Percentage of LinesOfCreditCurrent100.0

us-gaap:LineOfCredit



Period End2020-03-31
Value200
Percentage of LinesOfCreditCurrent2222.2

us-gaap:LoansAndLeasesReceivableAllowance



Period End2020-03-312019-12-31
Value30
Percentage of LoansAndLeasesReceivableAllowance100.0100.0

us-gaap:AdjustmentsForNewAccountingPronouncements

aiz:AccountingStandardsUpdate201613



Period End2020-01-01
Value2
Percentage of LoansAndLeasesReceivableAllowance0.0

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebtServiceCoverageRatios

us-gaap:LoansAndLeasesReceivableGrossCarryingAmount

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatio



Period End2020-03-31
Value798
Percentage of LoansAndLeasesReceivableGrossCarryingAmount100.0

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.0xand1.5



Period End2020-03-31
Value185
Percentage of LoansAndLeasesReceivableGrossCarryingAmount23.3

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioBetween1.5and2.0



Period End2020-03-31
Value244
Percentage of LoansAndLeasesReceivableGrossCarryingAmount30.7

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioGreaterthan2.0



Period End2020-03-31
Value363
Percentage of LoansAndLeasesReceivableGrossCarryingAmount45.5

us-gaap:CommercialPortfolioSegment, aiz:DebtServiceCoverageRatioLessThan1.0



Period End2020-03-31
Value4
Percentage of LoansAndLeasesReceivableGrossCarryingAmount0.6

us-gaap:FinancingReceivablePortfolioSegment, aiz:DebttoValue

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio71to80Percent



Period End2020-03-31
Value17
Percentage of LoansAndLeasesReceivableGrossCarryingAmount2.2

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatio81to95Percent



Period End2020-03-31
Value4
Percentage of LoansAndLeasesReceivableGrossCarryingAmount0.6

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatioLessthan70Percent



Period End2020-03-31
Value776
Percentage of LoansAndLeasesReceivableGrossCarryingAmount97.3

us-gaap:CommercialPortfolioSegment, aiz:DebttoValueRatios



Period End2020-03-31
Value798
Percentage of LoansAndLeasesReceivableGrossCarryingAmount100.0

us-gaap:LoansAndLeasesReceivableNetReportedAmount



Period End2020-01-01
Value815
Percentage of LoansAndLeasesReceivableNetReportedAmount100.0

aiz:CumulativeEffectPeriodOfAdoption

aiz:CumulativeEffectPeriodOfAdoptionAdjustedBalance



Period End2020-01-01
Value813
Percentage of LoansAndLeasesReceivableNetReportedAmount99.8

aiz:CumulativeEffectPeriodOfAdoptionAdjustment



Period End2020-01-01
Value-1
Percentage of LoansAndLeasesReceivableNetReportedAmount-0.2

us-gaap:MortgageLoansOnRealEstateCommercialAndConsumerNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value7958158047837587597577206826706486246036245956208721151123312671255127212531248125712871268126612901311130213021313130913071313132713201428
Percentage of MortgageLoansOnRealEstateCommercialAndConsumerNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:MortgagesHeldForSaleFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value854843838811760735730716679
Percentage of MortgagesHeldForSaleFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value795815804783758759757720670
Percentage of MortgagesHeldForSaleFairValueDisclosure93.196.696.096.599.7103.3103.8100.698.7

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value854843838811760735730716679
Percentage of MortgagesHeldForSaleFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Range, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:NotesReceivableGross

srt:Maximum, us-gaap:CommercialRealEstatePortfolioSegment, us-gaap:RealEstateLoan



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value1212121212
Percentage of NotesReceivableGross100.0100.0100.0100.0100.0

us-gaap:OtherAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value76459050062264456758762337038774942636135939738740147546839938884735437432425813813212097121118122124186189201514548
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OtherAssetsFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3128353642434445
Percentage of OtherAssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3128353642434445
Percentage of OtherAssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3128353642434445
Percentage of OtherAssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value587638653668658635633642557568589786676595631623618575585585611606599604589589573583585568578585579570587566577567522
Percentage of OtherInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:OtherLiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value62706770666271
Percentage of OtherLiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value11210100001
Percentage of OtherLiabilitiesFairValueDisclosure180.5144.40.00.31.11.11.4

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value008053414156
Percentage of OtherLiabilitiesFairValueDisclosure0.00.3120.375.262.665.579.4

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value175172147123108104128
Percentage of OtherLiabilitiesFairValueDisclosure280.5244.7220.3175.5163.6166.6180.8

us-gaap:OtherShortTermInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value221402266357343373604343171284266198229227396498449508747442247345465356566470972771239300251504383441508447435358453
Percentage of OtherShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PreferredStockSharesAuthorized



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-312017-12-312011-12-31
Value22222222200
Percentage of PreferredStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PreferredStockSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-312017-12-31
Value22222200
Percentage of PreferredStockSharesOutstanding100.0100.0100.0100.0100.0100.00.00.0

us-gaap:PreferredStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2222222220
Percentage of PreferredStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:PremiumsAndOtherReceivablesNet



Period End2020-03-312020-01-012019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value163616921692176717451695164316011512124812371286133612441217131212181331126012741426157314451340129411291080983884890830760685672649614612576542507
Percentage of PremiumsAndOtherReceivablesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:CumulativeEffectPeriodOfAdoption

aiz:CumulativeEffectPeriodOfAdoptionAdjustedBalance



Period End2020-01-01
Value1691
Percentage of PremiumsAndOtherReceivablesNet99.9

aiz:CumulativeEffectPeriodOfAdoptionAdjustment



Period End2020-01-01
Value-1
Percentage of PremiumsAndOtherReceivablesNet-0.1

us-gaap:ReinsurancePayable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value339358345321319330302324126145173118142951161321101321219910415711013178106111113971031131031131308710210010496
Percentage of ReinsurancePayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-05-312018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value1893119120431952198713313011282428026421803400825322514133927821496
Percentage of ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReinsuranceRecoverables



Period End2020-03-312020-01-012019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value9539959395939510916290619166112561097892789790105788953886890839059872786897470727973767205725461496002582457525684568258666141549054285429541152955151504949974231
Percentage of ReinsuranceRecoverables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

aiz:CumulativeEffectPeriodOfAdoption

aiz:CumulativeEffectPeriodOfAdoptionAdjustedBalance



Period End2020-01-01
Value9570
Percentage of ReinsuranceRecoverables99.8

aiz:CumulativeEffectPeriodOfAdoptionAdjustment



Period End2020-01-01
Value-22
Percentage of ReinsuranceRecoverables-0.2

us-gaap:ReinsuranceRecoverablesAllowance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value27200000000500010101010101210
Percentage of ReinsuranceRecoverablesAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

aiz:GlobalHousing



Period End2020-03-312019-12-31
Value1000000.0300000.0
Percentage of ReinsuranceRecoverablesAllowance3.710.7

aiz:GlobalLifestyle



Period End2020-03-312019-12-31
Value52
Percentage of ReinsuranceRecoverablesAllowance18.389.3

aiz:GlobalPreneed



Period End2020-03-312019-12-31
Value200000.00.0
Percentage of ReinsuranceRecoverablesAllowance0.70.0

us-gaap:CorporateAndOther



Period End2020-03-312019-12-31
Value210
Percentage of ReinsuranceRecoverablesAllowance77.30.0

us-gaap:CreditRatingAMBest, us-gaap:CededCreditRisk

us-gaap:ReinsuranceRecoverablesGross

aiz:NotRated, aiz:CededToU.S.Government



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value7286191838511926589121555153
Percentage of ReinsuranceRecoverablesGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SeparateAccountAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value152418391747183118011609190418581816183718001779175016921738171417191798175419191933190618721942191619411858178118111731176517211842169416621975204020001972
Percentage of SeparateAccountAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SeparateAccountsLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value152418391747183118011609190418581816183718001779175016921738171417191798175419191933190618721942191619411858178118111731176517211842169416621975204020001972
Percentage of SeparateAccountsLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PlanName, us-gaap:SubsequentEventType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased

aiz:EmployeeStockPurchasePlan, us-gaap:SubsequentEvent



Period End2020-01-312019-01-312018-01-312017-01-312016-07-312016-01-312015-07-31
Value98.0980.590.7679.1570.6761.760.3
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value53865682569057605471513352395332450142814138422440984524518152295033496450265014487547474780485337094088
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value88411405328103-155-97-137512342562369411855585867659755452438129728565-67053
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.67.27.15.71.9-3.0-1.9-2.61.15.56.25.62.32.610.716.413.412.011.010.57.86.36.01.4-18.11.3

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value45404537452445094496449544784459347831973186317231753148313130433028302830253016300329972993296229282904
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest84.379.979.578.382.287.685.583.677.374.777.075.177.569.660.458.260.261.060.260.261.663.162.661.078.971.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value11111111111111111111111111
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value162931303121202011100
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.30.50.60.50.60.40.40.40.20.30.0

us-gaap:PreferredStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value22222222200
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.10.10.10.10.10.10.10.10.10.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value60615966588259805879575957775846581556975414550052964856480939923883373437423596353733893264305426502269
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest112.5105.0103.4103.8107.5112.2110.3109.6129.2133.1130.8130.2129.2107.492.876.477.275.274.471.772.671.468.362.971.455.5

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-5324-5267-5158-5093-5043-4992-4943-4860-4860-4860-4721-4686-4470-3601-3316-2666-2556-2396-2297-2124-2048-1937-1764-1231-1199-1140
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-98.9-92.7-90.7-88.4-92.2-97.2-94.3-91.1-108.0-113.5-114.1-110.9-109.1-79.6-64.0-51.0-50.8-48.3-45.7-42.4-42.0-40.8-36.9-25.4-32.3-27.9

us-gaap:TreasuryStockShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1021011001009999989797979696959491898683828280797777767674726868676459575250474328
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnearnedPremiums



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value16673166031638315934156381564815497145057084703869626718660166266443629863086423644964296259652967846690661066626455623261746192589656855564548253155245511950635153
Percentage of UnearnedPremiums100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnsecuredDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value22072006200620072006200620052004200410681067113610671067116511651414117111711171117111711171117011701638163816461670972972972972972972972972972972
Percentage of UnsecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ValueOfBusinessAcquiredVOBA



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value1753200422622554285831573905396222242628303234363841434143454749515355575962646668717375788294108
Percentage of ValueOfBusinessAcquiredVOBA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableInterestEntityConsolidatedCarryingAmountAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1937202020772086205716851599130510427463490
Percentage of VariableInterestEntityConsolidatedCarryingAmountAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ConsolidatedEntities, us-gaap:InvestmentType

us-gaap:VariableInterestEntityPrimaryBeneficiary, aiz:CollateralizedLoanObligationFunds



Period End2020-03-312019-12-31
Value112124
Percentage of VariableInterestEntityConsolidatedCarryingAmountAssets5.86.2

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:RealEstateFunds



Period End2020-03-312019-12-31
Value4588
Percentage of VariableInterestEntityConsolidatedCarryingAmountAssets2.44.4

us-gaap:ConsolidatedEntities, us-gaap:InvestmentType, us-gaap:LongtermDebtType

us-gaap:VariableInterestEntityPrimaryBeneficiary, aiz:CollateralizedLoanObligationFunds, aiz:SeniorDebt



Period End2020-03-312019-12-31
Value1921
Percentage of VariableInterestEntityConsolidatedCarryingAmountAssets1.01.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, aiz:CollateralizedLoanObligationFunds, us-gaap:SubordinatedDebt



Period End2020-03-312019-12-31
Value4177
Percentage of VariableInterestEntityConsolidatedCarryingAmountAssets2.13.8

us-gaap:VariableInterestEntityConsolidatedCarryingAmountLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value170516871706176118011455137410868305732790
Percentage of VariableInterestEntityConsolidatedCarryingAmountLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

Line plots across dimensions of each concept

us-gaap:Revenues us-gaap:StatementBusinessSegments


us-gaap:PremiumsEarnedNet us-gaap:StatementBusinessSegments


us-gaap:NetInvestmentIncome us-gaap:StatementBusinessSegments


us-gaap:OtherIncome us-gaap:StatementBusinessSegments


us-gaap:PolicyholderBenefitsAndClaimsIncurredNet us-gaap:StatementBusinessSegments


us-gaap:SellingGeneralAndAdministrativeExpense us-gaap:StatementBusinessSegments


us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:StatementBusinessSegments


us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementBusinessSegments


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


us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments


us-gaap:Assets us-gaap:StatementBusinessSegments


us-gaap:StockholdersEquity us-gaap:StatementEquityComponents


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


us-gaap:StockholdersEquity us-gaap:StatementEquityComponents


us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments


us-gaap:ProfitLoss us-gaap:StatementBusinessSegments


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


us-gaap:ProfitLoss us-gaap:StatementEquityComponents