cm:Level3TextBlock: us-gaap:ScheduleOfNetInvestmentHedgesStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock
Schedule of Net Investment Hedges, Statements of Financial Performance and Financial Position, Location [Table Text Block] |
us-gaap:ScheduleOfNetInvestmentHedgesStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock |
Tabular disclosure for net investment hedges of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. |
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us-gaap:ScheduleOfNetInvestmentHedgesStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock |