cm:Level3TextBlock: us-gaap:ScheduleOfHealthCareCostTrendRatesTableTextBlock
Schedule of Health Care Cost Trend Rates [Table Text Block] |
us-gaap:ScheduleOfHealthCareCostTrendRatesTableTextBlock |
Tabular disclosure of the assumed health care cost trend rates for the next year used to measure the expected cost of benefits covered by the plans, including the ultimate trend rate(s) and when that rate is expected to be achieved. |
cm:Level3TextBlock |
Text Block (HTML) (nonnum:textBlockItemType) |
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(no balance type) |
false |
us-gaap:ScheduleOfHealthCareCostTrendRatesTableTextBlock |
HealthCareCostTrendRates |