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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2024
Inventories [Abstract] |
Summary of Inventories |
(CAD$ in millions) |  | December 31, 2024 |  | December 31, 2023
Supplies |  | $ | 1,235 |  |  | $ | 1,318 |
Raw materials |  | 260 |  |  | 277 |
Work in process |  | 774 |  |  | 1,046 |
Finished products |  | 636 |  |  | 655 |
|  | 2,905 |  |  | 3,296 |
Less non-current portion (Note 20) |  | (307) |  |  | (350) |
|  | $ | 2,598 |  |  | $ | 2,946 |

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