cm:Concept: us-gaap:DefinedBenefitPlanSettlementsBenefitObligation
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement |
us-gaap:DefinedBenefitPlanSettlementsBenefitObligation |
Amount of (increase) decrease to benefit obligation of defined benefit plan from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Includes, but is not limited to, lump-sum cash payment to participant in exchange for right to receive specified benefits, purchase of nonparticipating annuity contract and change from remeasurement. |
cm:Concept |
Monetary (xbrli:monetaryItemType) |
For Period (duration) |
Debit |
false |
us-gaap:DefinedBenefitPlanSettlementsBenefitObligation |