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Income Taxes - Schedule Of Provision For Income Tax (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Current |  |  |
Other taxes | $ 13 | $ 6 | $ 13
Current income tax | 1,848 | (257) | 434
Deferred |  |  |
Deferred corporate income tax | 399 | (181) | (895)
Deferred income tax | 399 | (181) | (894)
Income tax | 2,247 | (438) | (460)
North America |  |  |
Current |  |  |
Current corporate income tax | 1,841 | (245) | 354
North Sea |  |  |
Current |  |  |
Current corporate income tax | 7 | (4) | 112
Current PRT - North Sea | (34) | (31) | (89)
Deferred |  |  |
Deferred PRT – North Sea | 0 | 0 | 1
Offshore Africa |  |  |
Current |  |  |
Current corporate income tax | $ 21 | $ 17 | $ 44

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