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v3.25.3

Corporate Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Detail) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Oct. 31, 2025 | Oct. 31, 2024 | Oct. 31, 2023
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income | [1] | $ (549) |  | $ 438 |  |
Deferred tax assets |  | 5,906 |  | 5,301 |  |
Deferred tax liabilities |  | 4,067 |  | 3,756 |  |
Net deferred tax assets (liabilities) |  | 1,839 | [1] | 1,545 | [1] | $ 2,095
Deferred tax assets tax loss carry forwards [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | 60 |  | 29 |  |
Deferred tax assets |  | 623 |  | 930 |  |
Deferred tax assets allowance for credit losses [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (272) |  | 54 |  |
Deferred tax assets |  | 1,357 |  | 1,076 |  |
Deferred tax assets deferred compensation [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (109) |  | (100) |  |
Deferred tax assets |  | 388 |  | 317 |  |
Deferred tax assets deferred income [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (150) |  | (137) |  |
Deferred tax assets |  | 404 |  | 255 |  |
Deferred tax asset property and equipment [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (101) |  | (10) |  |
Deferred tax assets |  | 422 |  | 262 |  |
Deferred tax assets pension and other post-retirement benefits [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (22) |  | (48) |  |
Deferred tax assets |  | 314 |  | 387 |  |
Deferred tax assets securities [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (26) |  | (17) |  |
Deferred tax assets |  | 284 |  | 260 |  |
Deferred tax assets lease liabilities [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | 3 |  | 28 |  |
Deferred tax assets |  | 910 |  | 891 |  |
Deferred tax assets own credit risk [Member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax assets |  | 447 |  | 250 |  |
Deferred tax assets other [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (22) |  | (57) |  |
Deferred tax assets |  | 757 |  | 673 |  |
Deferred tax liabilities cash flow hedges [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax liabilities |  | 39 |  | 57 |  |
Deferred tax liabilities deferred compensation [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (11) |  | (24) |  |
Deferred tax liabilities |  | 209 |  | 187 |  |
Deferred tax liabilities deferred income [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (14) |  | (20) |  |
Deferred tax liabilities |  | 65 |  | 50 |  |
Deferred tax liability property and equipment [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (39) |  | (243) |  |
Deferred tax liabilities |  | 805 |  | 684 |  |
Deferred tax liabilities pension and other post-retirement benefits [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (1) |  | 1 |  |
Deferred tax liabilities |  | 73 |  | 82 |  |
Deferred tax liabilities securities [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | 34 |  | (14) |  |
Deferred tax liabilities |  | 398 |  | 354 |  |
Deferred tax liabilities investment in subsidiaries and associates [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (26) |  | 52 |  |
Deferred tax liabilities |  | 86 |  | 29 |  |
Deferred tax liabilities intangible assets [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | 57 |  | (344) |  |
Deferred tax liabilities |  | 1,746 |  | 1,809 |  |
Deferred tax liabilities others [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (90) |  | (104) |  |
Deferred tax liabilities |  | 646 |  | 504 |  |
Deferred tax assets [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | (639) |  | (258) |  |
Deferred tax liabilities [member] |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |
Deferred tax expense (benefit) for the year recorded in income |  | $ (90) |  | $ (696) |  |
[1] | For Consolidated Statement of Financial Position presentation, deferred tax assets and liabilities are assessed by legal entity. As a result, the net deferred tax assets of $1,839 (2024 – $1,545) are represented by deferred tax assets of $3,253 (2024 – $2,942), and deferred tax liabilities of $1,414 (2024 – $1,397) on the Consolidated Statement of Financial Position.

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