XML 271 R208.htm IDEA: XBRL DOCUMENT v3.25.3
Financial instruments - disclosures - Schedule of Balance Sheet Exposure Credit Risk under Different Basel Approaches (Detail) - CAD ($)
$ in Millions
Oct. 31, 2025
Oct. 31, 2024
Disclosure of detailed information about financial instruments [line items]    
Cash and deposits with banks $ 44,003  
Securities 283,235 $ 254,345
Cash collateral on securities borrowed 21,697 17,028
Securities purchased under resale agreements 86,695 83,721
Loans 593,896  
Allowance for credit losses (4,392) (3,917)
Derivative instruments 38,352 36,435
Other assets 53,452  
Total credit exposures 1,116,938 1,041,985
Subject to credit risk [member]    
Disclosure of detailed information about financial instruments [line items]    
Cash and deposits with banks 44,003  
Securities 159,839  
Cash collateral on securities borrowed 21,697  
Securities purchased under resale agreements 69,044  
Loans 591,037  
Allowance for credit losses (4,392)  
Derivative instruments 38,352  
Other assets 36,856  
Total credit exposures 956,436 899,752
Subject to credit risk [member] | IRB approach [member]    
Disclosure of detailed information about financial instruments [line items]    
Cash and deposits with banks 38,725  
Securities 150,549  
Cash collateral on securities borrowed 21,694  
Securities purchased under resale agreements 66,181  
Loans 548,529  
Allowance for credit losses (4,085)  
Derivative instruments 38,352  
Other assets 25,125  
Total credit exposures 885,070 839,643
Subject to credit risk [member] | Standardized approach [member]    
Disclosure of detailed information about financial instruments [line items]    
Cash and deposits with banks 2,864  
Securities 5,594  
Cash collateral on securities borrowed 3  
Loans 16,267  
Allowance for credit losses (307)  
Other assets 1,832  
Total credit exposures 26,253 24,493
Subject to credit risk [member] | Other credit risk [member]    
Disclosure of detailed information about financial instruments [line items]    
Cash and deposits with banks 2,414  
Loans 1,155  
Other assets 9,769  
Total credit exposures 13,338 12,107
Subject to credit risk [member] | Securitization Approach [Member]    
Disclosure of detailed information about financial instruments [line items]    
Securities 3,696  
Securities purchased under resale agreements 2,863  
Loans 25,086  
Other assets 130  
Total credit exposures 31,775 23,509
Not subject to credit risk [member]    
Disclosure of detailed information about financial instruments [line items]    
Securities 123,396  
Securities purchased under resale agreements 17,651  
Loans 2,859  
Other assets 16,596  
Total credit exposures $ 160,502 $ 142,233