| Standard label: | Separate Account, Liability, Segment [Extensible List] |
| Name: | us-gaap:SeparateAccountLiabilitySegmentExtensibleList |
| Documentation: | Indicates business segment for separate account liability. |
| Object type: | cm:Concept |
| Data type: | srt-types:extensibleListItemType |
| Period type: | As Of (instant) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:SeparateAccountLiabilitySegmentExtensibleList |
| Label | Role | Language |
| Separate Account, Liability, Segment [Extensible List] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 80 50 2 | http://www.xbrl.org/2009/role/commonPracticeRef | 944 |