| Name | PolicyholderAccountBalancePeriodIncreaseDecrease |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Policyholder Account Balance, Period Increase (Decrease) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Policyholder Account Balance, Period Increase (Decrease), Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:PolicyholderAccountBalanceIssuance | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:PolicyholderAccountBalanceBenefitPayment | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:PolicyholderAccountBalancePolicyCharge | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:PolicyholderAccountBalancePremiumReceived | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:PolicyholderAccountBalanceSurrenderAndWithdrawal | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:PolicyholderAccountBalanceIncreaseDecreaseFromOtherChange | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:TransferToFromPolicyholderAccountBalanceToFromSeparateAccount | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:PolicyholderAccountBalanceRollForward | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:PolicyholderAccountBalanceRollForward | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAPolicyholderAccountBalanceTable |