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Employee Compensation - Pension and Other Employee Future Benefits - Summary of Changes in Estimated Financial Positions of Defined Benefit Pension Plans and Other Employee Future Benefit Plans (Parenthetical) (Detail) $ in Millions | 12 Months Ended
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Oct. 31, 2025 CAD ($)
Disclosure of defined benefit plans [line items] |
Pre tax for impact of transfer of pension defined benefit plans | $ 0
Pension Plan [Member] |
Disclosure of defined benefit plans [line items] |
Deferred tax liability (asset) | $ 0

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- Definition Pre tax for impact of transfer of pension defined benefit plans. + References No definition available. + Details
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Period Type: | duration

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- Definition The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2024-03-27 + Details
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Period Type: | instant

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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Balance Type: |
Period Type: |