cm:Concept: us-gaap:LiabilityForFuturePolicyBenefitByProductSegmentInterestRateYearOfIssue
| Liability for Future Policy Benefit by Product Segment, Interest Rate, Year of Issue |
| us-gaap:LiabilityForFuturePolicyBenefitByProductSegmentInterestRateYearOfIssue |
| The assumed interest rate used to determine present value of future benefits to be paid to or on behalf of policyholders and related expenses less the present value of future net premiums using assumptions such as estimates of expected investment yields, mortality, morbidity, terminations and expenses, applicable at the time the insurance contracts are made and unpaid claim costs relating to insurance contracts including estimates of costs relating to incurred but not reported claims based on the estimated ultimate cost of settling the claims (including effects of inflation and other societal and economic factors), using past experience adjusted for current trends and any other factors that would modify past experience in the year the policy went into force. |
| cm:Concept |
| Percent (num:percentItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:LiabilityForFuturePolicyBenefitByProductSegmentInterestRateYearOfIssue |