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Intangible Assets | 12 Months Ended
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Dec. 31, 2024
Disclosure of detailed information about intangible assets [abstract] |
Intangible Assets | Intangible Assets A reconciliation of the changes in the carrying amount of intangible assets is as follows:
| Power sale and other contracts | Software and other | Intangibles under development | Coal rights | Total |
Cost |  |  |  |  |  |
As at Dec. 31, 2022 | 272 |  | 437 |  | 27 |  | 132 |  | 868 |  |
Additions | — |  | — |  | 13 |  | — |  | 13 |  |
Asset impairment charges (Note 7) | — |  | (1) |  | — |  | — |  | (1) |  |
Change in foreign exchange rates | (2) |  | (2) |  | (1) |  | — |  | (5) |  |
Transfers | — |  | 12 |  | (12) |  | — |  | — |  |
As at Dec. 31, 2023 | 270 |  | 446 |  | 27 |  | 132 |  | 875 |  |
Additions | — |  | — |  | 10 |  | — |  | 10 |  |
Acquisitions (Note 4) | 57 |  | — |  | — |  | — |  | 57 |  |
Change in foreign exchange rates | 5 |  | 7 |  | 1 |  | — |  | 13 |  |
Transfers | 20 |  | 35 |  | (33) |  | — |  | 22 |  |
As at Dec. 31, 2024 | 352 |  | 488 |  | 5 |  | 132 |  | 977 |  |
Accumulated amortization |  |  |  |  |  |
As at Dec. 31, 2022 | 158 |  | 326 |  | — |  | 132 |  | 616 |  |
Amortization | 17 |  | 21 |  | — |  | — |  | 38 |  |
Change in foreign exchange rates | (1) |  | (1) |  | — |  | — |  | (2) |  |
As at Dec. 31, 2023 | 174 |  | 346 |  | — |  | 132 |  | 652 |  |
Amortization | 19 |  | 19 |  | — |  | — |  | 38 |  |
Change in foreign exchange rates | 4 |  | 3 |  | — |  | — |  | 7 |  |
Transfers | — |  | (1) |  | — |  | — |  | (1) |  |
As at Dec. 31, 2024 | 197 |  | 367 |  | — |  | 132 |  | 696 |  |
Carrying amount |  |  |  |  |  |
As at Dec. 31, 2022 | 114 |  | 111 |  | 27 |  | — |  | 252 |  |
As at Dec. 31, 2023 | 96 |  | 100 |  | 27 |  | — |  | 223 |  |
As at Dec. 31, 2024 | 155 |  | 121 |  | 5 |  | — |  | 281 |  |

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- References No definition available. + Details
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- Definition The entire disclosure for intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Section Disclosure -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&doctype=Standard&dita_xref=IAS38_g118-128_TI -URIDate 2024-03-27 + Details
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