| Standard label: | Variable Universal Life [Member] |
| Name: | us-gaap:VariableUniversalLifeMember |
| Documentation: | Contract providing life insurance that combines both adjustability of premium, coverage and investment features, and variability of benefit payable upon death or surrender from investment experience of separate account supporting contract. |
| Object type: | cm:Member |
| Data type: | [Member] (nonnum:domainItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:VariableUniversalLifeMember |
| Label | Role | Language |
| Variable Universal Life [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 30 55 2 | http://www.xbrl.org/2003/role/exampleRef | 944 |
| FASB Accounting Standards Codification 944 80 55 18 | http://www.xbrl.org/2003/role/exampleRef | 944 |