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Intangible Assets | 12 Months Ended
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Dec. 31, 2022
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 contracts | Software and other | Intangibles under development | Coal rights | Total |
Cost |  |  |  |  |  |
As at Dec. 31, 2020 | 269 |  | 412 |  | 3 |  | 149 |  | 833 |  |
Additions | — |  | — |  | 9 |  | — |  | 9 |  |
Impairment charges (Note 7) | — |  | — |  | — |  | (17) |  | (17) |  |
Change in foreign exchange rates | — |  | (2) |  | — |  | — |  | (2) |  |
Transfers | — |  | 12 |  | (8) |  | — |  | 4 |  |
As at Dec. 31, 2021 | 269 |  | 422 |  | 4 |  | 132 |  | 827 |  |
Additions(1) | — |  | — |  | 31 |  | — |  | 31 |  |
Change in foreign exchange rates | 3 |  | 3 |  | 1 |  | — |  | 7 |  |
Transfers | — |  | 12 |  | (9) |  | — |  | 3 |  |
As at Dec. 31, 2022 | 272 |  | 437 |  | 27 |  | 132 |  | 868 |  |
Accumulated amortization |  |  |  |  |  |
As at Dec. 31, 2020 | 123 |  | 272 |  | — |  | 125 |  | 520 |  |
Amortization | 17 |  | 27 |  | — |  | 7 |  | 51 |  |
As at Dec. 31, 2021 | 140 |  | 299 |  | — |  | 132 |  | 571 |  |
Amortization | 17 |  | 26 |  | — |  | — |  | 43 |  |
Change in foreign exchange rates | 1 |  | 1 |  | — |  | — |  | 2 |  |
As at Dec. 31, 2022 | 158 |  | 326 |  | — |  | 132 |  | 616 |  |
Carrying amount |  |  |  |  |  |
As at Dec. 31, 2020 | 146 |  | 140 |  | 3 |  | 24 |  | 313 |  |
As at Dec. 31, 2021 | 129 |  | 123 |  | 4 |  | — |  | 256 |  |
As at Dec. 31, 2022 | 114 |  | 111 |  | 27 |  | — |  | 252 |  |
(1) In 2022, the Company reclassified $19 million in project development costs related to various US Wind projects to intangible assets. Refer to Note 23 for further details. Other additions relate to corporate software costs.

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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 2022-03-24 -Section Disclosure -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&doctype=Standard&dita_xref=IAS38_g118-128__IAS38_g118-128_TI -URIDate 2022-03-24 + Details
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