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IFRS 7 - Disclosure - Credit Risk - Summary of Risk Measurement (Detail) - Credit risk [member] | 12 Months Ended
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Oct. 31, 2025
Default [member] |
Disclosure of credit risk exposure [line items] |
CIBC Rating | 90
Bottom of range [member] | Investment grade [member] |
Disclosure of credit risk exposure [line items] |
CIBC Rating | 0
Bottom of range [member] | Non investment grade [member] |
Disclosure of credit risk exposure [line items] |
CIBC Rating | 51
Bottom of range [member] | Watch list [member] |
Disclosure of credit risk exposure [line items] |
CIBC Rating | 70
Top of range [member] | Investment grade [member] |
Disclosure of credit risk exposure [line items] |
CIBC Rating | 47
Top of range [member] | Non investment grade [member] |
Disclosure of credit risk exposure [line items] |
CIBC Rating | 67
Top of range [member] | Watch list [member] |
Disclosure of credit risk exposure [line items] |
CIBC Rating | 80
Equivalent external rating S&P default [member] | Investment grade [member] |
Disclosure of credit risk exposure [line items] |
Description of rating agencies used | AAA to BBB-
Equivalent external rating S&P default [member] | Non investment grade [member] |
Disclosure of credit risk exposure [line items] |
Description of rating agencies used | BB+ to B-
Equivalent external rating S&P default [member] | Watch list [member] |
Disclosure of credit risk exposure [line items] |
Description of rating agencies used | CCC+ to C
Equivalent external rating S&P default [member] | Default [member] |
Disclosure of credit risk exposure [line items] |
Description of rating agencies used | D
Equivalent external rating Moody's default [member] | Investment grade [member] |
Disclosure of credit risk exposure [line items] |
Description of rating agencies used | Aaa to Baa3
Equivalent external rating Moody's default [member] | Non investment grade [member] |
Disclosure of credit risk exposure [line items] |
Description of rating agencies used | Ba1 to B3
Equivalent external rating Moody's default [member] | Watch list [member] |
Disclosure of credit risk exposure [line items] |
Description of rating agencies used | Caa1 to Ca
Equivalent external rating Moody's default [member] | Default [member] |
Disclosure of credit risk exposure [line items] |
Description of rating agencies used | C

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- Definition Description of Rating Agencies Involved. + References No definition available. + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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Data Type: | na
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- Details
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- Details
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- Details
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