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INCOME TAXES - Schedule of Components of Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Abstract]
Current income tax expense	$ 164	$ 299	$ 172
Deferred income tax expense (benefit)	32	(218)	20
Income tax expense	$ 196	$ 81	$ 192

- 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