v3.26.1
Loans and Allowance for Credit Losses - Summary of Loans that are Past Due but not Classified as Impaired (Details) - Financial assets past due but not impaired - CAD ($)
$ in Millions
Apr. 30, 2026
Oct. 31, 2025
Disclosure of detailed information about financial instruments [line items]    
Total loans $ 2,085 $ 2,317
Residential mortgages    
Disclosure of detailed information about financial instruments [line items]    
Total loans 831 861
Credit cards, consumer instalment and other personal    
Disclosure of detailed information about financial instruments [line items]    
Total loans 855 832
Business and government    
Disclosure of detailed information about financial instruments [line items]    
Total loans 399 624
30 to 89 days    
Disclosure of detailed information about financial instruments [line items]    
Total loans 1,894 2,131
30 to 89 days | Residential mortgages    
Disclosure of detailed information about financial instruments [line items]    
Total loans 818 854
30 to 89 days | Credit cards, consumer instalment and other personal    
Disclosure of detailed information about financial instruments [line items]    
Total loans 689 661
30 to 89 days | Business and government    
Disclosure of detailed information about financial instruments [line items]    
Total loans 387 616
90 days or more    
Disclosure of detailed information about financial instruments [line items]    
Total loans 191 186
90 days or more | Residential mortgages    
Disclosure of detailed information about financial instruments [line items]    
Total loans 13 7
90 days or more | Credit cards, consumer instalment and other personal    
Disclosure of detailed information about financial instruments [line items]    
Total loans 166 171
90 days or more | Business and government    
Disclosure of detailed information about financial instruments [line items]    
Total loans 12 8
90 days or more | Securitized Loans    
Disclosure of detailed information about financial instruments [line items]    
Total loans $ 13 $ 7