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SEGMENTED INFORMATION - Schedule of components of income tax expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [abstract]
Current income tax expense	$ (970)	$ (861)
Deferred income tax recovery	475	1,109
Income tax (expense) recovery	$ (495)	$ 248

- Definition

The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax. [Refer: Current tax expense (income); Deferred tax expense (income)]

+ References + Details