INCOME TAXES - Balance Sheet Classification of Deferred Income Tax Assets (Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Deferred Tax Assets Liabilities Net [Abstract]
Net noncurrent deferred tax asset	$ 72	$ 15
Net noncurrent deferred tax liability	(6)	(43)
Net deferred tax asset (liability)	$ 66	$ (28)

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant