Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 82	$ 112	$ 104	$ 215
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	59	(22)	(78)	(15)
Other comprehensive income (loss)	59	(22)	(78)	(15)
Comprehensive income	$ 141	$ 90	$ 26	$ 200