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Derivative Instruments - Summary of Derivative Instruments (Detail) - CAD ($) $ in Millions | Oct. 31, 2025 | Oct. 31, 2024
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Statement [Line Items] |  |
Assets, Trading (Note 2) | $ 34,032 | $ 33,485
Assets, ALM (Note 2) | 4,320 | 2,950
Assets | 38,352 | 36,435
Liabilities, Trading (Note 2) | 39,237 | 39,847
Liabilities, ALM (Note 2) | 2,174 | 807
Liabilities | $ 41,411 | $ 40,654

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- Definition The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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