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SEGMENTED INFORMATION - Geographical information (Details) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
SEGMENTED INFORMATION |  |
Operating revenues, net of royalties | $ 39,132 | $ 24,662
Non-current assets excluding deferred income tax assets | 72,602 | 75,021
Canada |  |
SEGMENTED INFORMATION |  |
Operating revenues, net of royalties | 32,286 | 20,588
Non-current assets excluding deferred income tax assets | 68,900 | 71,040
United States |  |
SEGMENTED INFORMATION |  |
Operating revenues, net of royalties | 5,818 | 3,312
Non-current assets excluding deferred income tax assets | 2,020 | 1,856
Other foreign |  |
SEGMENTED INFORMATION |  |
Operating revenues, net of royalties | 1,028 | 762
Non-current assets excluding deferred income tax assets | $ 1,682 | $ 2,125

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