| Name | OciLiabilityForFuturePolicyBenefitGainLossAfterReclassificationAdjustmentTax |
|---|---|
| Namespace | http://fasb.org/us-gaap/2021-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | debit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Amount, after reclassification adjustment, of tax expense (benefit) for unrealized gain (loss) from (increase) decrease in liability for future policy benefit from change in discount rate. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| PublishDate | 2019-01 | http://fasb.org/us-gaap/role/tin/value |
| Positive_XBRL_Value | Tax Expense | http://fasb.org/us-gaap/role/tin/value |
| Negative_XBRL_Value | Tax Benefit | http://fasb.org/us-gaap/role/tin/value |
| Note | Element is intended to be used for each reported period for which amendment from Accounting Standards Update identified in tin-part:Source_ASU_Number is applied. | http://fasb.org/us-gaap/role/tin/transition |
| PublishDate | 2019-01 | http://fasb.org/us-gaap/role/tin/transition |
| Source | ASU | http://fasb.org/us-gaap/role/tin/transition |
| SourceName | Long-duration Insurance | http://fasb.org/us-gaap/role/tin/transition |
| Source_ASU_Number | 2018-12 | http://fasb.org/us-gaap/role/tin/transition |
| elementCreationTaxonomyVersion | 2019 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| SourceName | Long-duration Insurance | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2019 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2018-08 | http://fasb.org/srt/role/changeNote/changeNote |
| NewElement | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2018-12 | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | FASB | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/disclosureRef |
| Topic | 220 | http://www.xbrl.org/2003/role/disclosureRef |
| SubTopic | 10 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | 45 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 12 | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=124509347&loc=d3e640-108580 | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:OciLiabilityForFuturePolicyBenefitGainLossBeforeReclassificationAdjustmentTax | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:OciLiabilityForFuturePolicyBenefitGainLossReclassificationAdjustmentFromAociTax | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:OciLiabilityForFuturePolicyBenefitGainLossAfterReclassificationAdjustmentTaxAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA | |
us-gaap:OciLiabilityForFuturePolicyBenefitGainLossAfterReclassificationAdjustmentTaxParent | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |