cm:Concept: us-gaap:HedgedAssetFairValueHedgeLastOfLayerCumulativeIncreaseDecrease
Hedged Asset, Fair Value Hedge, Last-of-Layer, Cumulative Increase (Decrease) |
us-gaap:HedgedAssetFairValueHedgeLastOfLayerCumulativeIncreaseDecrease |
Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk, in last-of-layer hedging relationship. |
cm:Concept |
Monetary (xbrli:monetaryItemType) |
As Of (instant) |
Debit |
false |
us-gaap:HedgedAssetFairValueHedgeLastOfLayerCumulativeIncreaseDecrease |