v3.24.3
Significant acquisition and disposition - Summary of the Estimated Fair Value of the Assets Acquired and Liabilities Assumed as at the Acquisition Date (Parenthetical) (Detail) - CAD ($)
$ in Millions
Mar. 28, 2024
Oct. 31, 2024
Disclosure of fair value measurement of assets acquired and liabilities assumed [line items]    
Estimate of contractual cash flows not expected to be collected $ 575  
Secured borrowing liability $ 1,700  
Estimated useful lives of intangible assets 7 years  
Mutual fund management contracts with indefinite useful lives $ 259 $ 259
Financial instruments purchased or originated credit-impaired [member]    
Disclosure of fair value measurement of assets acquired and liabilities assumed [line items]    
Purchased credit impaired loan 135  
Loans [member]    
Disclosure of fair value measurement of assets acquired and liabilities assumed [line items]    
Gross contractual value 75,752  
Canadian residential mortgages sold with recourse to a mutual fund [member]    
Disclosure of fair value measurement of assets acquired and liabilities assumed [line items]    
Fair value of identifiable assets acquired 1,700  
Other intangible assets [member]    
Disclosure of fair value measurement of assets acquired and liabilities assumed [line items]    
Intangible assets 1,972  
Customer-related intangible assets [member]    
Disclosure of fair value measurement of assets acquired and liabilities assumed [line items]    
Intangible assets $ 111