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Provisions (Tables) | 12 Months Ended
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Dec. 31, 2024
Other Provisions, Contingent Liabilities And Contingent Assets [Abstract] |
Summary of Movements in Provisions |
(CAD$ in millions) |  | 2024 |  | 2023
At December 31 |  | $ | 2,626 |  |  | $ | 4,198 |
Less current portion of provisions |  | (187) |  |  | (347) |
Non-current provisions |  | $ | 2,439 |  |  | $ | 3,851 |
The following table summarizes the movements in provisions for the year ended December 31, 2024:
(CAD$ in millions) |  | Decommissioning and Restoration Provisions |  | Other Provisions |  | Total
At January 1, 2024 |  | $ | 3,907 |  |  | $ | 291 |  |  | $ | 4,198 |
Settled during the year |  | (123) |  |  | (27) |  |  | (150) |
Change in discount rate |  | (397) |  |  | — |  |  | (397) |
Change in amount and timing of cash flows |  | 374 |  |  | 40 |  |  | 414 |
Accretion |  | 177 |  |  | 5 |  |  | 182 |
Change from the NSC/POSCO transaction |  | 127 |  |  | — |  |  | 127 |
Sale of steelmaking coal business |  | (1,828) |  |  | (28) |  |  | (1,856) |
Other |  | (4) |  |  | — |  |  | (4) |
Changes in foreign exchange rates |  | 95 |  |  | 17 |  |  | 112 |
At December 31, 2024 |  | $ | 2,328 |  |  | $ | 298 |  |  | $ | 2,626 |
Less current portion of provisions |  | (149) |  |  | (38) |  |  | (187) |
Non-current provisions |  | $ | 2,179 |  |  | $ | 260 |  |  | $ | 2,439 |

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