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Income Taxes - Schedule Of Provision For Income Tax (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Current |  |  |
Other taxes | $ 13 | $ 9 | $ 11
Current income tax | 434 | 374 | (164)
Deferred |  |  |
Deferred corporate income tax | (895) | 540 | 586
Deferred income tax | (894) | 557 | 640
Income tax (recovery) expense | (460) | 931 | 476
North America |  |  |
Current |  |  |
Current corporate income tax | 354 | 312 | (145)
North Sea |  |  |
Current |  |  |
Current corporate income tax | 112 | 28 | 57
Current PRT - North Sea | (89) | (29) | (132)
Deferred |  |  |
Deferred PRT - North Sea | 1 | 17 | 54
Offshore Africa |  |  |
Current |  |  |
Current corporate income tax | $ 44 | $ 54 | $ 45

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