| Standard label: | Liability for Future Policy Benefit, Current Weighted-Average Discount Rate |
| Name: | us-gaap:LiabilityForFuturePolicyBenefitCurrentWeightedAverageDiscountRate |
| Documentation: | Current weighted-average discount rate used to measure liability for future policy benefit. |
| Object type: | cm:Concept |
| Data type: | Percent (num:percentItemType) |
| Period type: | As Of (instant) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:LiabilityForFuturePolicyBenefitCurrentWeightedAverageDiscountRate |
| Label | Role | Language |
| Liability for Future Policy Benefit, Current Weighted-Average Discount Rate | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 40 55 29E | http://www.xbrl.org/2003/role/exampleRef | 944 |
| FASB Accounting Standards Codification 944 40 50 6 (b)(6) | http://www.xbrl.org/2003/role/disclosureRef | 944 |