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Joint Arrangements - Husky Midstream Limited Partnership (Details) - CAD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | [1] | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Disclosure of joint ventures [line items] |  |  |  |  |  |
Net Earnings (Loss) | $ 2,432,000,000 | $ 224,000,000 | $ 4,057,000,000 | $ 444,000,000 | [1] |
Husky Midstream Limited Partnership |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |
Share of equity investment |  |  | 35.00% |  |  |
Net Earnings (Loss) |  |  | $ 80,000,000 | 50,000,000 |  |
Unrecognised share of pre-tax net losses of joint ventures |  |  | 6,000,000 | 12,000,000 |  |
Investments in Equity-Accounted Affiliates | $ 0 |  | 0 |  |  | $ 0
Unrecognised share of losses of joint ventures |  |  | 17,000,000 | 7,000,000 |  |
Dividends received |  |  | 22,000,000 | 37,000,000 |  |
Joint venture, contributions |  |  | $ 30,000,000 | $ 32,000,000 |  |
Husky Midstream Limited Partnership | Power Assets Holding Ltd. |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |
Share of equity investment |  |  | 49.00% |  |  |
Husky Midstream Limited Partnership | Cheung Kong Infrastructure Holdings Ltd. |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |
Share of equity investment |  |  | 16.00% |  |  |
[1] | See Note 3 for revisions to prior period results.

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