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v3.25.3

Income Taxes - Summary of Effective Tax Rates (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2025 | Oct. 31, 2024
Statement [Line Items] |  |  |
Combined Canadian federal and provincial income taxes at the statutory tax rate |  | $ 3,211 | $ 2,651
Tax-exempt income from securities |  | (36) | (45)
Foreign operations subject to different tax rates | [1] | (264) | (365)
Change in tax rate for deferred taxes |  | 7 | 3
Income attributable to investments in associates and joint ventures |  | (51) | (36)
Other |  | (42) |
Provision for income taxes in our Consolidated Statement of Income and effective tax rate |  | $ 2,825 | $ 2,208
Combined Canadian federal and provincial income taxes at the statutory tax rate |  | 27.80% | 27.80%
Tax-exempt income from securities |  | (0.30%) | (0.50%)
Foreign operations subject to different tax rates | [1] | (2.30%) | (3.80%)
Change in tax rate for deferred taxes |  | 0.10% |
Income attributable to investments in associates and joint ventures |  | (0.40%) | (0.30%)
Other |  | (0.40%) |
Provision for income taxes in our Consolidated Statement of Income and effective tax rate |  | 24.50% | 23.20%
[1] | Global minimum tax rules became effective this fiscal year, and as a result, our effective tax rate increased by approximately 55 basis points for the year ended October 31, 2025.

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