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Trading Assets - Summary of Geographic Breakdown Trading Loans (Detail) - CAD ($) $ in Millions | Oct. 31, 2025 | Oct. 31, 2024
--- | --- | ---
Disclosure of financial assets [line items] |  |  |
Trading loans | [1],[2] | $ 8,487 | $ 7,649
United States [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Trading loans | [1],[2],[3] | 6,290 | 6,154
Europe [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Trading loans | [1],[2],[3] | 434 | 458
Canada [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Trading loans | [1],[2],[4] | 1,759 | 980
Other Countries [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Trading loans | [1],[2] | $ 4 | $ 57
[1] | Geographic segmentation of trading loans is based upon the location of the ultimate risk of the underlying asset.
[2] | Loans are primarily denominated in U.S. dollars.
[3] | Includes trading loans that serve as a hedge to loan-based credit total return swaps.
[4] | Includes trading loans that serve as hedges to total return swaps, hedges for precious metal certificate liabilities and loans subject to sale through syndication.

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