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cm:Concept: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss
Standard label: Market Risk Benefit, Change in Fair Value, Gain (Loss)
Name: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss
Documentation: Amount of gain (loss) from (increase) decrease in fair value of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. Excludes change attributable to instrument-specific credit risk.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Credit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss

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Labels
Label Role Language
Market Risk Benefit, Change in Fair Value, Gain (Loss) http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 944 40 45 3 http://www.xbrl.org/2003/role/disclosureRef 944