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cm:Concept: us-gaap:OciLiabilityForFuturePolicyBenefitGainLossAfterReclassificationAdjustmentTaxNoncontrollingInterest
Standard label: OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax, Noncontrolling Interest
Name: us-gaap:OciLiabilityForFuturePolicyBenefitGainLossAfterReclassificationAdjustmentTaxNoncontrollingInterest
Documentation: Amount, after reclassification adjustment, of tax expense (benefit) for unrealized gain (loss) from (increase) decrease in liability for future policy benefit from change in discount rate, attributable to noncontrolling interest.
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:OciLiabilityForFuturePolicyBenefitGainLossAfterReclassificationAdjustmentTaxNoncontrollingInterest

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Labels
Label Role Language
OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax, Noncontrolling Interest http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 220 10 45 12 http://www.xbrl.org/2003/role/disclosureRef 220
FASB Accounting Standards Codification 810 10 50 1A (c)(3) http://www.xbrl.org/2003/role/disclosureRef 810
FASB Accounting Standards Codification 810 10 45 19 http://www.xbrl.org/2003/role/disclosureRef 810