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Cash and Cash Equivalents (Tables) | 12 Months Ended
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Dec. 31, 2021
Cash and cash equivalents [abstract] |
Disclosure Of Cash And Cash Equivalent Explanatory |
As at December 31, |  | 2021 |  |  |  | 2020 |  |  |  |  |
Cash |  | 2,366 |  |  |  | 368 |  |  |  |  |
Short-Term Investments |  | 507 |  |  |  | 10 |  |  |  |  |
|  | 2,873 |  |  |  | 378 |  |  |  |  |

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