Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 418	$ 387	$ (603)
Other comprehensive (loss) income:
Foreign currency translation adjustments, net of tax	(27)	(62)	265
Other comprehensive (loss) income	(27)	(62)	265
Comprehensive income (loss)	$ 391	$ 325	$ (338)