cm:Concept: us-gaap:AccrualForEnvironmentalLossContingenciesSignificantAssumptions
Accrual for Environmental Loss Contingencies, Significant Assumptions |
us-gaap:AccrualForEnvironmentalLossContingenciesSignificantAssumptions |
Significant assumptions underlying the estimate of the environmental loss contingencies accrual, which represents costs to remediate environmental problems. |
cm:Concept |
Text/String (xbrli:stringItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:AccrualForEnvironmentalLossContingenciesSignificantAssumptions |