cm:Level3TextBlock: us-gaap:ScheduleOfAccumulatedAndProjectedBenefitObligationsTableTextBlock
Schedule of Accumulated and Projected Benefit Obligations [Table Text Block] |
us-gaap:ScheduleOfAccumulatedAndProjectedBenefitObligationsTableTextBlock |
Tabular disclosure of benefit obligations including accumulated benefit obligation and projected benefit obligation. |
cm:Level3TextBlock |
Text Block (HTML) (nonnum:textBlockItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:ScheduleOfAccumulatedAndProjectedBenefitObligationsTableTextBlock |
AccumulatedAndProjectedBenefitObligations |