v3.22.2.2
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
Oct. 31, 2022
Oct. 31, 2021
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment $ 263,831 $ 206,869
Items not subject to impairment 10,136 11,197
Gross carrying amount of financial assets 273,967 218,066
Investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 88,715 63,201
Non investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 161,666 132,542
Not rated [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 12,149 9,769
Impaired [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 1,301 1,357
Stage one loan [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 246,210 189,710
Stage one loan [member] | Investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 88,513 62,975
Stage one loan [member] | Non investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 145,908 117,396
Stage one loan [member] | Not rated [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 11,789 9,339
Stage two loan [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 16,320 15,802
Stage two loan [member] | Investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 202 226
Stage two loan [member] | Non investment grade [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 15,758 15,146
Stage two loan [member] | Not rated [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 360 430
Stage three loan [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment 1,301 1,357
Stage three loan [member] | Impaired [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount of financial assets subject to impairment $ 1,301 $ 1,357