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Consolidated statement of comprehensive income (Parenthetical) - CAD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2025 | Jan. 31, 2025 | Apr. 30, 2024 | Apr. 30, 2025 | Oct. 31, 2024
Statement of comprehensive income [abstract] |  |  |  |  |
Gains (losses) on investments in equity-accounted associates and joint ventures included in OCI | $ 20 | $ (3) | $ 1 | $ 17 | $ 54

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