cm:Concept: us-gaap:DeconsolidationRevaluationOfRetainedInvestmentGainOrLossAmount
Deconsolidation, Revaluation of Retained Investment, Gain (Loss), Amount |
us-gaap:DeconsolidationRevaluationOfRetainedInvestmentGainOrLossAmount |
Amount of gain (loss) from remeasurement to fair value of retained investment in former subsidiary and group of assets constituting business or nonprofit activity deconsolidated and derecognized, excluding conveyance of oil and gas mineral rights and transfer of product or service in contract with customer. |
cm:Concept |
Monetary (xbrli:monetaryItemType) |
For Period (duration) |
Credit |
false |
us-gaap:DeconsolidationRevaluationOfRetainedInvestmentGainOrLossAmount |