CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net Income (Loss) Attributable to Parent	$ 14	$ (27)	$ (2)	$ 143
Foreign currency translation	(10)	(1)	(11)	1
Net unrealized loss on derivative instruments, net of tax (benefit) expense of ($3), ($1), $2 and ($2), respectively	(14)	(7)	(8)	20
Net loss on intra-entity foreign currency transactions, net of tax expense of $0, $0, $0 and $1, respectively	0	(1)	(1)	(1)
Other comprehensive (loss) income	(24)	(9)	(20)	20
Comprehensive (loss) income	$ (10)	$ (36)	$ (22)	$ 163