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cm:Concept: us-gaap:GuaranteedBenefitLiabilityGrossPeriodIncreaseDecrease
Standard label: Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross, Period Increase (Decrease)
Name: us-gaap:GuaranteedBenefitLiabilityGrossPeriodIncreaseDecrease
Documentation: Amount of increase (decrease) in the liability for guaranteed minimum benefits on long-duration contracts.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:GuaranteedBenefitLiabilityGrossPeriodIncreaseDecrease

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Labels
Label Role Language
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross, Period Increase (Decrease) http://www.xbrl.org/2003/role/label en-US
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross, Period Increase (Decrease), Total http://www.xbrl.org/2003/role/totalLabel 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 80 50 1 (d) http://fasb.org/us-gaap/role/ref/legacyRef 944