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Joint Arrangements - Joint Operations (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | [1]
Disclosure of joint operations [line items] |  |  |  |
Net Earnings (Loss) | $ 6,450 | $ 587 | [1] | $ (2,379)
Husky-CNOOC Madura Ltd. |  |  |  |
Disclosure of joint operations [line items] |  |  |  |
Proportion of ownership interest in joint venture | 40.00% |  |  |
Share of income from equity-accounted affiliate | $ 23 | 47 |  |
Investments in joint ventures accounted for using equity method | 365 | 311 |  |
Distributions received | 42 | 100 |  |
Joint venture, contributions | 54 | 18 |  |
Net Earnings (Loss) | $ 33 | 44 |  |
Husky Midstream Limited Partnership |  |  |  |
Disclosure of joint operations [line items] |  |  |  |
Proportion of ownership interest in joint venture | 35.00% |  |  |
Investments in joint ventures accounted for using equity method | $ 0 | 0 |  |
Distributions received | 23 | 37 |  |
Joint venture, contributions | 31 | 32 |  |
Net Earnings (Loss) | 190 | 134 |  |
Unrecognised share of pre-tax net losses of joint ventures | 23 | 22 |  |
Unrecognised share of losses of joint ventures | $ 28 | $ 17 |  |
Power Assets Holding Ltd. | Husky Midstream Limited Partnership |  |  |  |
Disclosure of joint operations [line items] |  |  |  |
Proportion of ownership interest in joint venture | 49.00% |  |  |
Cheung Kong Infrastructure Holdings Ltd. | Husky Midstream Limited Partnership |  |  |  |
Disclosure of joint operations [line items] |  |  |  |
Proportion of ownership interest in joint venture | 16.00% |  |  |
BP-Husky Refining LLC |  |  |  |
Disclosure of joint operations [line items] |  |  |  |
Proportion of ownership interest in joint operation | 50.00% |  |  |
BP-Husky Refining LLC | BP |  |  |  |
Disclosure of joint operations [line items] |  |  |  |
Proportion of ownership interest in joint operation | 50.00% |  |  |
WRB Refining LP |  |  |  |
Disclosure of joint operations [line items] |  |  |  |
Proportion of ownership interest in joint operation | 50.00% |  |  |
WRB Refining LP | Phillips 66 |  |  |  |
Disclosure of joint operations [line items] |  |  |  |
Proportion of ownership interest in joint operation | 50.00% |  |  |
[1] | See Note 3X for revisions to prior period results.

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