 | us-gaap:StatementTable | parent-child | http://fasb.org/us-gaap/role/statement/CommonDomainMembers |
 | us-gaap:StatementTable | hypercube-dimension | http://fasb.org/us-gaap/role/statement/CommonDomainMembersStatementTable |
 | us-gaap:ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable | parent-child | http://fasb.org/us-gaap/role/disclosure/SegmentReporting |
 | us-gaap:ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/SegmentReportingScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable |
 | us-gaap:ShortdurationInsuranceContractsClaimsDevelopmentTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance |
 | us-gaap:ShortdurationInsuranceContractsClaimsDevelopmentTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceShortdurationInsuranceContractsClaimsDevelopmentTable |
 | us-gaap:DisaggregationOfRevenueTable | parent-child | http://fasb.org/us-gaap/role/disclosure/RevenuefromContractswithCustomers |
 | us-gaap:DisaggregationOfRevenueTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/RevenuefromContractswithCustomersDisaggregationOfRevenueTable |
 | us-gaap:AdditionalLiabilityLongDurationInsuranceActivityTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:DeferredPolicyAcquisitionCostTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:DeferredPolicyAcquisitionCostAndPresentValueOfFutureProfitTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:DeferredSaleInducementCostTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:LiabilityForFuturePolicyBenefitActivityTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:MarketRiskBenefitTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:PolicyholderAccountBalanceTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:PolicyholderAccountBalanceGuaranteedMinimumCreditingRateTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:PresentValueOfFutureInsuranceProfitTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:SeparateAccountLiabilityTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:AdditionalLiabilityLongDurationInsuranceActivityTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAAdditionalLiabilityLongDurationInsuranceActivityTable |
 | us-gaap:DeferredPolicyAcquisitionCostAndPresentValueOfFutureProfitTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceADeferredPolicyAcquisitionCostAndPresentValueOfFutureProfitTable |
 | us-gaap:DeferredPolicyAcquisitionCostTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceADeferredPolicyAcquisitionCostTable |
 | us-gaap:DeferredSaleInducementCostTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceADeferredSaleInducementCostTable |
 | us-gaap:LiabilityForFuturePolicyBenefitActivityTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable |
 | us-gaap:MarketRiskBenefitTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAMarketRiskBenefitTable |
 | us-gaap:PolicyholderAccountBalanceGuaranteedMinimumCreditingRateTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAPolicyholderAccountBalanceGuaranteedMinimumCreditingRateTable |
 | us-gaap:PolicyholderAccountBalanceTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAPolicyholderAccountBalanceTable |
 | us-gaap:PresentValueOfFutureInsuranceProfitTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAPresentValueOfFutureInsuranceProfitTable |
 | us-gaap:SeparateAccountLiabilityTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceASeparateAccountLiabilityTable |