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FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Non Derivative Financial Instruments (Details) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2021 CAD ($) | Dec. 31, 2020 CAD ($)
Non Derivative Financial Instruments |  |  |
Partnership liability |  | $ 436 | $ 445
East Tank Farm Development | Fort McKay First Nation and the Mikisew Cree First Nation Partnership |  |  |
Non Derivative Financial Instruments |  |  |
Percentage of ownership interest acquired | 49 |  |
Fixed term debt |  |  |
Non Derivative Financial Instruments |  |  |
Borrowings excluding short term debt |  | 14,200 | 15,200
Fair value of fixed term debt |  | $ 17,400 | $ 18,800

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- Details
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