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cm:Member: us-gaap:ReturnOfNetDepositsAccruedAtStatedRateMember
Standard label: Return of Net Deposits Accrued at Stated Rate [Member]
Name: us-gaap:ReturnOfNetDepositsAccruedAtStatedRateMember
Documentation: Guarantee for a return of net deposit plus an accrual at a stated interest rate on a guaranteed benefit obligation in traditional and nontraditional long-duration contracts with policy and contract holders.
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:ReturnOfNetDepositsAccruedAtStatedRateMember

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Labels
Label Role Language
Return of Net Deposits Accrued at Stated Rate [Member] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 944 20 55 15 http://fasb.org/us-gaap/role/ref/legacyRef 944
FASB Accounting Standards Codification 944 40 50 7B http://www.xbrl.org/2009/role/commonPracticeRef 944
FASB Accounting Standards Codification 944 80 50 1 (d)(2)(c) http://fasb.org/us-gaap/role/ref/legacyRef 944