v3.24.3
Loans and Allowance for Credit Losses - Summary of Gross Carrying Amount of Loans Measured at Amortized Cost - Credit Cards (Detail) - Credit cards [member] - Retail loans [member] - CAD ($)
$ in Millions
Oct. 31, 2024
Oct. 31, 2023
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment $ 25,565 $ 23,035
Low risk [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 17,540 16,466
Medium risk [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 4,435 3,903
High risk [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 2,364 1,775
Not rated [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 1,226 891
Stage one loan [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 20,610 18,999
Stage one loan [member] | Low risk [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 17,363 16,331
Stage one loan [member] | Medium risk [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 1,999 1,771
Stage one loan [member] | High risk [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 75 41
Stage one loan [member] | Not rated [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 1,173 856
Stage two loan [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 4,955 4,036
Stage two loan [member] | Low risk [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 177 135
Stage two loan [member] | Medium risk [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 2,436 2,132
Stage two loan [member] | High risk [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 2,289 1,734
Stage two loan [member] | Not rated [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment $ 53 $ 35