cm:Concept: us-gaap:DisposalGroupIncludingDiscontinuedOperationPostretirementPlanBenefitObligationCurrent
Disposal Group, Including Discontinued Operation, Postretirement Plan Benefit Obligation, Current |
us-gaap:DisposalGroupIncludingDiscontinuedOperationPostretirementPlanBenefitObligationCurrent |
Amount classified as defined benefit non-pension postretirement plan obligations attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. |
cm:Concept |
Monetary (xbrli:monetaryItemType) |
As Of (instant) |
Credit |
false |
us-gaap:DisposalGroupIncludingDiscontinuedOperationPostretirementPlanBenefitObligationCurrent |