cm:Level3TextBlock: us-gaap:ScheduleOfQuantitativeInformationAboutDerecognizedSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherTextBlock
Quantitative Information about Transferred Financial Assets that have been Derecognized and Other Financial Assets Managed Together [Table Text Block] |
us-gaap:ScheduleOfQuantitativeInformationAboutDerecognizedSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherTextBlock |
Tabular disclosure of transferred financial assets that have been derecognized and other financial assets that are managed together. Includes, but is not limited to, delinquencies and credit losses, after recoveries. |
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us-gaap:ScheduleOfQuantitativeInformationAboutDerecognizedSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherTextBlock |