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Goodwill and Intangible Assets - Summary of Intangible Assets (Parenthetical) (Detail) - CAD ($) $ in Millions | Oct. 31, 2025 | Oct. 31, 2024 | Oct. 31, 2023
--- | --- | --- | ---
Statement [Line Items] |  |  |
Intangible assets other than goodwill | $ 4,758 | $ 4,925 |
Gross carrying amount [member] |  |  |
Statement [Line Items] |  |  |
Intangible assets other than goodwill | 11,825 | 11,516 | $ 12,370
Accumulated depreciation and amortisation [member] |  |  |
Statement [Line Items] |  |  |
Intangible assets other than goodwill | (7,067) | (6,591) | $ (7,154)
Internally generated [member] | Software amortizing [member] | Gross carrying amount [member] |  |  |
Statement [Line Items] |  |  |
Intangible assets other than goodwill | 5,752 | 5,466 |
Internally generated [member] | Software amortizing [member] | Accumulated depreciation and amortisation [member] |  |  |
Statement [Line Items] |  |  |
Intangible assets other than goodwill | $ (3,760) | $ (3,653) |

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- Definition The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_c&doctype=Standard -URIDate 2024-03-27 + Details
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