| Name | EffectOfModifiedRetrospectiveApplicationAccountingStandardsUpdate201812Member |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:domainItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Effect of Modified Retrospective Application Accounting Standards Update 2018-12 [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
srt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceLongDurationContractsTmp062 | |
srt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceLongDurationContractsTmp062NewAccountingPronouncementsOrChangeInAccountingPrincipleTable | |
srt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
srt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceANewAccountingPronouncementsOrChangeInAccountingPrincipleTable |