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Employee Compensation - Pension and Other Employee Future Benefits - Summary of Pension and Other Employee Future Benefit Expenses (Detail) - CAD ($) $ in Millions | 12 Months Ended
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Oct. 31, 2025 | Oct. 31, 2024
Pension Plans [member] |  |
Disclosure of defined benefit plans [line items] |  |
Current service cost | $ 177 | $ 153
Net interest (income) expense | (51) | (61)
Impact of plan amendments | (19) |
Administrative expenses | 8 | 11
Benefits expense | 115 | 103
Government pension plans expense | 388 | 375
Defined contribution expense | 306 | 290
Total annual pension and other employee future benefit expenses (recovery) recognized in our Consolidated Statement of Income | 809 | 768
Other employee future benefit plans [member] |  |
Disclosure of defined benefit plans [line items] |  |
Current service cost | 6 | 5
Net interest (income) expense | 38 | 40
Impact of plan amendments |  | (84)
Remeasurement of other long-term benefits | 24 | 5
Benefits expense | 68 | (34)
Total annual pension and other employee future benefit expenses (recovery) recognized in our Consolidated Statement of Income | $ 68 | $ (34)

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- Definition Defined benefit plans impact of plan amendments expenses. + References No definition available. + Details
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- Definition Employee (benefits) expense remeasurement of other long term benefits. + References No definition available. + Details
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- Definition Government pension plans expense. + References No definition available. + Details
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- Definition Pension and other employee future benefit expenses (recovery). + References No definition available. + Details
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- Definition Post employment benefit expense. + References No definition available. + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_a&doctype=Standard -URIDate 2024-03-27 + Details
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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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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of post-employment benefit expense relating to defined contribution plans. Defined contribution plans are post-employment benefit plans under which an entity pays fixed contributions into a separate entity (a fund) and will have no legal or constructive obligation to pay further contributions if the fund does not hold sufficient assets to pay all employee benefits relating to employee service in the current and prior periods. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 53 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_53&doctype=Standard -URIDate 2024-03-27 + Details
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- Details
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- Details
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