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Interest expense (Tables) | 12 Months Ended
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Dec. 31, 2021
Borrowing costs [abstract] |
Disclosure of interest expense |
FOR THE YEAR ENDED DECEMBER 31 | 2021 | 2020
Interest expense on long-term debt | (1,088) |  | (1,072) |
Interest expense on other debt | (57) |  | (87) |
Capitalized interest | 63 |  | 49 |
Total interest expense | (1,082) |  | (1,110) |

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