Deposits - Summary of Deposits (Parenthetical) (Detail) - CAD ($) $ in Millions		Jan. 31, 2025	Oct. 31, 2024
Disclosure Of Deposits [line Items]
Payable after notice	[1],[2],[3]	$ 212,958
Deposits	[1]	966,049	$ 943,849
U.S. dollar [member]
Disclosure Of Deposits [line Items]
Deposits		309,983	295,316
Chile, Pesos [member]
Disclosure Of Deposits [line Items]
Deposits		20,198	19,271
Mexico, Pesos [member]
Disclosure Of Deposits [line Items]
Deposits		34,709	34,416
Other Foreign Currencies [member]
Disclosure Of Deposits [line Items]
Deposits		115,267	109,683
Non interest bearing deposits [member]
Disclosure Of Deposits [line Items]
Payable after notice		$ 122	$ 124

[1] Deposits denominated in U.S. dollars amount to $309,983 (October 31, 2024 – $295,316), deposits denominated in Chilean pesos amount to $20,198 (October 31, 2024 – $19,271), deposits denominated in Mexican pesos amount to $34,709 (October 31, 2024 – $34,416) and deposits denominated in other foreign currencies amount to $115,267 (October 31, 2024 – $109,683).

[2] Deposits payable after notice include all deposits for which the Bank requires notice of withdrawal, generally savings accounts.

[3] Includes $122 (October 31, 2024 – $124) of non-interest-bearing deposits.