v3.26.1
Operating Segments - Schedule of Operating Segments (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
Canadian banking [member]          
Disclosure of operating segments [line items]          
Net income from investments in associated corporations $ (3) $ (2) $ (2) $ (14) $ 20
International banking [member]          
Disclosure of operating segments [line items]          
Net income from investments in associated corporations 65 65 39 178 112
Other smaller operating segments and corporate adjustments [member]          
Disclosure of operating segments [line items]          
Net income from investments in associated corporations 159 $ 159 $ 120 468 $ 297
Global banking and markets [member]          
Disclosure of operating segments [line items]          
Net income from investments in associated corporations $ 1     $ 1