Deposits - Summary of Maturity Schedule for Term Deposits (Parenthetical) (Detail) $ in Millions	Jan. 31, 2026 CAD ($)
Disclosure Of Deposits [line Items]
Foreign term deposits in excess	$ 485,533	[1],[2]
Foreign countries [member] | Bottom of range [member]
Disclosure Of Deposits [line Items]
Foreign term deposits in excess	$ 100,000

[1] All deposits that mature on a specified date, generally term deposits, guaranteed investments certificates and similar instruments.

[2] Deposits denominated in U.S. dollars amount to $310,021 (October 31, 2025 – $297,065), deposits denominated in Chilean pesos amount to $20,881 (October 31, 2025 – $20,053), deposits denominated in Mexican pesos amount to $35,542 (October 31, 2025 – $35,941) and deposits denominated in other foreign currencies amount to $110,665 (October 31, 2025 – $117,530).