| Name | PolicyholderAccountBalanceGuaranteedMinimumCreditRating |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | num:percentItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Policyholder Account Balance, Guaranteed Minimum Credit Rating | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:PolicyholderAccountBalanceGuaranteedMinimumCreditingRateLineItems | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceLongDurationContractsTmp031 | |
us-gaap:PolicyholderAccountBalanceGuaranteedMinimumCreditingRateLineItems | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceLongDurationContractsTmp031PolicyholderAccountBalanceGuaranteedMinimumCreditingRateTable | |
us-gaap:PolicyholderAccountBalanceGuaranteedMinimumCreditingRateLineItems | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:PolicyholderAccountBalanceGuaranteedMinimumCreditingRateLineItems | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAPolicyholderAccountBalanceGuaranteedMinimumCreditingRateTable |