v3.22.2.2
Loans and Allowance for Credit Losses - Disclosure of Loans (Detail) - CAD ($)
$ in Millions
Oct. 31, 2022
Oct. 31, 2021
Disclosure of credit risk exposure [line items]    
Gross carrying amount $ 823,718 $ 721,664
Allowance for loan losses (3,753) (4,089)
Loans, net of allowance for credit losses 819,965 717,575
Retail [member] | Residential mortgages [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 418,796 380,332
Allowance for loan losses (432) (416)
Loans, net of allowance for credit losses 418,364 379,916
Retail [member] | Personal [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 97,709 93,441
Allowance for loan losses (856) (973)
Loans, net of allowance for credit losses 96,853 92,468
Retail [member] | Credit cards [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 20,577 17,822
Allowance for loan losses (849) (852)
Loans, net of allowance for credit losses 19,728 16,970
Retail [member] | Small business [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 12,669 12,003
Allowance for loan losses (181) (168)
Loans, net of allowance for credit losses 12,488 11,835
Wholesale [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 273,967 218,066
Allowance for loan losses (1,435) (1,680)
Loans, net of allowance for credit losses 272,532 216,386
Undrawn loan commitments - retail [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 264,957 245,944
Allowance for loan losses (243) (136)
Undrawn loan commitments - wholesale [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 425,235 371,578
Allowance for loan losses (135) (105)
Canada [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 604,582 549,722
Canada [member] | Retail [member] | Residential mortgages [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 383,797 354,169
Canada [member] | Retail [member] | Personal [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 79,422 78,232
Canada [member] | Retail [member] | Credit cards [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 19,778 17,235
Canada [member] | Retail [member] | Small business [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 12,669 12,003
Canada [member] | Wholesale [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 108,916 88,083
Canada [member] | Undrawn loan commitments - retail [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 258,115 240,242
Canada [member] | Undrawn loan commitments - wholesale [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 118,928 107,070
United States [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 162,197 121,629
United States [member] | Retail [member] | Residential mortgages [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 31,956 23,423
United States [member] | Retail [member] | Personal [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 14,888 11,794
United States [member] | Retail [member] | Credit cards [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 558 384
United States [member] | Wholesale [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 114,795 86,028
United States [member] | Undrawn loan commitments - retail [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 4,630 3,713
United States [member] | Undrawn loan commitments - wholesale [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 225,113 189,177
Other International [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 56,939 50,313
Other International [member] | Retail [member] | Residential mortgages [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 3,043 2,740
Other International [member] | Retail [member] | Personal [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 3,399 3,415
Other International [member] | Retail [member] | Credit cards [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 241 203
Other International [member] | Wholesale [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 50,256 43,955
Other International [member] | Undrawn loan commitments - retail [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount 2,212 1,989
Other International [member] | Undrawn loan commitments - wholesale [member]    
Disclosure of credit risk exposure [line items]    
Gross carrying amount $ 81,194 $ 75,331