cm:Concept: us-gaap:IncreaseDecreaseInFairValueOfPriceRiskFairValueHedgingInstruments1
Increase (Decrease) in Fair Value of Price Risk Fair Value Hedging Instruments |
us-gaap:IncreaseDecreaseInFairValueOfPriceRiskFairValueHedgingInstruments1 |
Amount of unrealized gain (loss) related to the fair value of price risk derivatives designated as fair value hedging instruments, as offset by the gain (loss) on the hedged item to the extent that the fair value hedge is determined to be effective. |
cm:Concept |
Monetary (xbrli:monetaryItemType) |
For Period (duration) |
Credit |
false |
us-gaap:IncreaseDecreaseInFairValueOfPriceRiskFairValueHedgingInstruments1 |