EARNINGS PER SHARE ("EPS") AND EQUITY Schedule of Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss	$ 59	$ 51	$ 32	$ 35
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(27)	(16)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss	15	30	8	30
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(7)	0
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss	(3)	(2)	3	(3)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0	(1)
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss	47	23	$ 27	$ 8
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ (20)	$ (15)