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v3.25.3

Employee Benefits - Schedule of Relative Size of Plan Obligation and Assets (Detail) | 12 Months Ended
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Oct. 31, 2025 | Oct. 31, 2024
SPP [member] | Canada [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Percentage of total benefit obligations |  | 72.00% | 72.00%
Percentage of total plan assets |  | 74.00% | 74.00%
Percentage of total benefit expense | [1] | 74.00% | 73.00%
Other Pension Plans [Member] | Canada [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Percentage of total benefit obligations |  | 16.00% | 15.00%
Percentage of total plan assets |  | 11.00% | 11.00%
Percentage of total benefit expense | [1] | 23.00% | 27.00%
Pension plans [member] | International [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Percentage of total benefit obligations |  | 12.00% | 13.00%
Percentage of total plan assets |  | 15.00% | 15.00%
Percentage of total benefit expense | [1] | 3.00% |
Other benefit plans [member] | Canada [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Percentage of total benefit obligations |  | 50.00% | 50.00%
Percentage of total benefit expense | [1] | 42.00% | 46.00%
Other benefit plans [member] | International [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Percentage of total benefit obligations |  | 50.00% | 50.00%
Percentage of total plan assets |  | 100.00% | 100.00%
Percentage of total benefit expense | [1] | 58.00% | 54.00%
[1] | Excludes non-routine benefit expense items such as past service costs, curtailment charges and settlement charges.

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- Definition Percentage of defined benefit obligations. + References No definition available. + Details
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- Details
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- Details
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- Details
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