STOCKHOLDERS’ EQUITY AND REDEEMABLE NONCONTROLLING INTEREST (Components of Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Beginning Balance	$ (39)
Net current period other comprehensive income	18	$ 20	$ (9)
Reclassification of stranded tax effects resulting from enactment of the Tax Cuts and Jobs Act			0
Ending Balance	(21)	(39)
Foreign Currency Translation Adjustments
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Beginning Balance	(42)	(49)	(38)
Other comprehensive (loss) income before reclassifications	12	7	(15)
Amounts reclassified from accumulated other comprehensive loss	3	0	4
Net current period other comprehensive income	15	7	(11)
Reclassification of stranded tax effects resulting from enactment of the Tax Cuts and Jobs Act			0
Ending Balance	(27)	(42)	(49)
Net Changes in Available-for-Sale Debt Securities
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Beginning Balance	8	0	0
Other comprehensive (loss) income before reclassifications	0	8	0
Amounts reclassified from accumulated other comprehensive loss	0	0	0
Net current period other comprehensive income	0	8	0
Reclassification of stranded tax effects resulting from enactment of the Tax Cuts and Jobs Act			0
Ending Balance	8	8	0
Net Deferred Losses on Cash Flow Hedges, net of tax
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Beginning Balance	(4)	(9)	(9)
Other comprehensive (loss) income before reclassifications	1	3	0
Amounts reclassified from accumulated other comprehensive loss	2	2	2
Net current period other comprehensive income	3	5	2
Reclassification of stranded tax effects resulting from enactment of the Tax Cuts and Jobs Act			(2)
Ending Balance	(1)	(4)	(9)
Other
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Beginning Balance	(1)	(1)	(1)
Other comprehensive (loss) income before reclassifications	0	0	0
Amounts reclassified from accumulated other comprehensive loss	0	0	0
Net current period other comprehensive income	0	0	0
Reclassification of stranded tax effects resulting from enactment of the Tax Cuts and Jobs Act			0
Ending Balance	(1)	(1)	(1)
Accumulated Other Comprehensive Loss
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Beginning Balance	(39)	(59)	(48)
Other comprehensive (loss) income before reclassifications	13	18	(15)
Amounts reclassified from accumulated other comprehensive loss	5	2	6
Net current period other comprehensive income	18	20	(9)
Reclassification of stranded tax effects resulting from enactment of the Tax Cuts and Jobs Act			(2)
Ending Balance	$ (21)	$ (39)	$ (59)