 | us-gaap:LiabilityForFuturePolicyBenefitCustomerExtensibleList | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:LiabilityForFuturePolicyBenefitGeographicalExtensibleList | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:LiabilityForFuturePolicyBenefitProductAndServiceExtensibleList | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:LiabilityForFuturePolicyBenefitSegmentExtensibleList | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:LiabilityForFuturePolicyBenefits | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:LiabilityForFuturePolicyBenefitReinsuranceRecoverableAfterAllowance | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:LiabilityForFuturePolicyBenefitCustomerExtensibleList | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable |
 | us-gaap:LiabilityForFuturePolicyBenefitGeographicalExtensibleList | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable |
 | us-gaap:LiabilityForFuturePolicyBenefitProductAndServiceExtensibleList | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable |
 | us-gaap:LiabilityForFuturePolicyBenefitSegmentExtensibleList | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable |