v3.26.1
Interest Income and Expense - Details of Interest Income from Financial Assets (Parenthetical) (Detail) - CAD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jul. 31, 2026
Apr. 30, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
Expenses by nature [abstract]          
Interest expense on lease liabilities $ 38 $ 39 $ 30 $ 108 $ 93
Insurance finance expense $ 8 $ 8 $ 8 $ 24 $ 25