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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2024
Intangible Assets [Abstract] |
Summary of Goodwill |
(CAD$ in millions) |  | Steelmaking Coal Business |  | Quebrada Blanca |  | Total
At January 1, 2023 |  | $ | 702 |  |  | $ | 416 |  |  | $ | 1,118 |
Changes in foreign exchange rates |  | — |  |  | (10) |  |  | (10) |
At December 31, 2023 |  | $ | 702 |  |  | $ | 406 |  |  | $ | 1,108 |
Changes in foreign exchange rates |  | — |  |  | 36 |  |  | 36 |
Sale of steelmaking coal business |  | (702) |  |  | — |  |  | (702) |
At December 31, 2024 |  | $ | — |  |  | $ | 442 |  |  | $ | 442 |

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- Definition The disclosure of the reconciliation of changes in intangible assets and goodwill. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Intangible Assets [Abstract] + References No definition available. + Details
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