| Name | LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitPeriodIncreaseDecreaseAbstract |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Liability for Future Policy Benefit, Expected Future Policy Benefit, Period Increase (Decrease) [Abstract] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitIssuance | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitInterestExpense | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:LiabilityForFuturePolicyBenefitsPaymentForBenefits | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitDerecognition | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitIncreaseDecreaseForOtherChange | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:PremiumDeficiencyTestingExpenseLongDurationContractAmount | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitPeriodIncreaseDecrease | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitIssuance | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable | |
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitInterestExpense | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable | |
us-gaap:LiabilityForFuturePolicyBenefitsPaymentForBenefits | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable | |
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitDerecognition | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable | |
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitIncreaseDecreaseForOtherChange | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable | |
us-gaap:PremiumDeficiencyTestingExpenseLongDurationContractAmount | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable | |
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitPeriodIncreaseDecrease | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitRollForward | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitRollForward | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceALiabilityForFuturePolicyBenefitActivityTable |