Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net income	$ 613	$ 479	$ 1,216	$ 1,180
Other comprehensive income/(loss), net of tax
Foreign currency translation	8	(364)	28	(251)
Other Comprehensive Income (Loss), Net of Tax	8	(364)
Comprehensive income / (loss)	$ 621	$ 115	$ 1,244	$ 929