v3.26.1
Loans and Allowance for Credit Losses - Summary of Gross Carrying Amount of Loans Measured at Amortized Cost - Wholesale (Detail) - Wholesale [member] - Loans outstanding [member] - CAD ($)
$ in Millions
Jul. 31, 2026
Oct. 31, 2025
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment $ 421,795 $ 387,447
Items not subject to impairment 12,544 9,724
Gross carrying amount of financial assets 434,339 397,171
Investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 156,187 132,439
Non investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 240,232 233,638
Not rated [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 18,375 15,217
Impaired [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 7,001 6,153
Stage one loan [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 382,364 352,275
Stage one loan [member] | Investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 154,411 130,322
Stage one loan [member] | Non investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 210,044 207,239
Stage one loan [member] | Not rated [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 17,909 14,714
Stage two loan [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 32,430 29,019
Stage two loan [member] | Investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 1,776 2,117
Stage two loan [member] | Non investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 30,188 26,399
Stage two loan [member] | Not rated [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 466 503
Stage three loan [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 7,001 6,153
Stage three loan [member] | Impaired [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment $ 7,001 $ 6,153