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Deposits - Summary of Deposits (Parenthetical) (Detail) - CAD ($) $ in Millions | Oct. 31, 2025 | Oct. 31, 2024
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Disclosure Of Deposits [line Items] |  |  |
Deposits | [1] | $ 966,279 | $ 943,849
U.S. dollar [member] |  |  |
Disclosure Of Deposits [line Items] |  |  |
Deposits |  | 297,065 | 295,316
Chile, Pesos [member] |  |  |
Disclosure Of Deposits [line Items] |  |  |
Deposits |  | 20,053 | 19,271
Mexico, Pesos [member] |  |  |
Disclosure Of Deposits [line Items] |  |  |
Deposits |  | 35,941 | 34,416
Other Foreign Currencies [member] |  |  |
Disclosure Of Deposits [line Items] |  |  |
Deposits |  | $ 117,530 | $ 109,683
[1] | Deposits denominated in U.S. dollars amount to $297,065 (2024 – $295,316), deposits denominated in Chilean pesos amount to $20,053 (2024 – $19,271), deposits denominated in Mexican pesos amount to $35,941 (2024 – $34,416) and deposits denominated in other foreign currencies amount to $117,530 (2024 – $109,683).

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