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Other Long-Term Liabilities - Schedule of Other Long-Term Liabilities (Details) - CAD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
Disclosure of detailed information about business combination [line items] |  |  |  |
Asset retirement obligations | $ 6,806 | $ 5,861 | $ 5,771 | $ 3,886
Lease liabilities | 1,584 | 1,690 |  |
Share-based compensation | 489 | 160 | $ 297 | 124
Risk management | 85 | 160 |  |
Transportation and processing contracts | 241 | 270 |  |
Other | 127 | 145 |  |
Other liabilities | 9,332 | 8,286 |  |
Less: current portion | 948 | 722 |  |
Other long-term liabilities | 8,384 | 7,564 |  |
Annual installment amount |  |  |  | $ 25
Joslyn Oil Sands |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |
Other | $ 48 | $ 72 |  |

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