| Standard label: | Liability for Future Policy Benefit, Remeasurement Gain (Loss), Limited-Payment Contract |
| Name: | us-gaap:LiabilityForFuturePolicyBenefitRemeasurementGainLossLimitedPaymentContract |
| Documentation: | Amount of remeasurement gain (loss) on liability for future policy benefit for limited-payment contract from application of revised benefit ratio as of contract issue date. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:LiabilityForFuturePolicyBenefitRemeasurementGainLossLimitedPaymentContract |
| Label | Role | Language |
| Liability for Future Policy Benefit, Remeasurement Gain (Loss), Limited-Payment Contract | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 40 45 4 | http://www.xbrl.org/2003/role/disclosureRef | 944 |