cm:Level3TextBlock: us-gaap:FinancialGuaranteeInsuranceContractsClaimLiabilityTableTextBlock
Financial Guarantee Insurance Contracts, Claim Liability [Table Text Block] |
us-gaap:FinancialGuaranteeInsuranceContractsClaimLiabilityTableTextBlock |
Tabular disclosure of the claim liability for financial guarantee insurance contracts. |
cm:Level3TextBlock |
Text Block (HTML) (nonnum:textBlockItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:FinancialGuaranteeInsuranceContractsClaimLiabilityTableTextBlock |