Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 26	$ 110	$ 130	$ 325
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	10	(24)	(68)	(39)
Other comprehensive income (loss)	10	(24)	(68)	(39)
Comprehensive income	$ 36	$ 86	$ 62	$ 286