CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 375	$ 420
Other comprehensive (loss) income:
Foreign currency translation adjustments	33	152
Derivative instrument adjustments, net of tax	(1)	(3)
Reclassification of (income) loss, net of tax	(1)	13
Net other comprehensive income (loss)	31	162
Comprehensive income	$ 406	$ 582

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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