v3.22.2.2
Results by business segment - Additional Information (Detail)
$ in Millions
12 Months Ended
Oct. 31, 2022
CAD ($)
Oct. 31, 2021
CAD ($)
Disclosure of operating segments [abstract]    
Description of types of products and services from which each reportable segment derives its revenues For management purposes, based on the products and services offered, we are organized into five business segments: Personal & Commercial Banking, Wealth Management, Insurance, Investor & Treasury Services and Capital Markets.  
Number of business segments 5  
Taxable equivalent basis adjustment amount $ 572 $ 518