cm:Concept: us-gaap:DebtSecuritiesHeldToMaturityTransferAmount
Debt Securities, Held-to-maturity, Transfer, Amount |
us-gaap:DebtSecuritiesHeldToMaturityTransferAmount |
Amount of investment in debt security, measured at amortized cost, transferred to investment in debt security, measured at fair value, with change in fair value recognized in other comprehensive income (available-for-sale) and net income (trading). |
cm:Concept |
Monetary (xbrli:monetaryItemType) |
For Period (duration) |
Debit |
false |
us-gaap:DebtSecuritiesHeldToMaturityTransferAmount |