XML 265 R202.htm IDEA: XBRL DOCUMENT v3.25.3
Related-Party Transactions - Summary of Compensation of Key Management Personnel (Detail) - CAD ($)
$ in Millions
12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Directors [member]    
Disclosure of transactions between related parties [line items]    
Short-term benefits $ 2 $ 2
Share-based benefits 2 2
Total compensation 4 4
Senior officers [member]    
Disclosure of transactions between related parties [line items]    
Short-term benefits 29 20
Post-employment benefits 2 2
Share-based benefits 53 35
Termination benefits 1 1
Total compensation $ 85 $ 58