CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 610	$ 489	$ 1,008	$ 860
Other comprehensive (loss) income:
Foreign currency translation adjustments	(399)	162	(247)	350
Derivative instrument adjustments, net of tax	11	(6)	8	(8)
Unrealized gain (loss) on available-for-sale securities, net of tax	0	(1)	0	(2)
Pension and postretirement adjustments, net of tax	0	0	0	0
Reclassification of losses (gains), net of tax	3	1	16	1
Net other comprehensive (loss) income	(385)	156	(223)	341
Comprehensive income	$ 225	$ 645	$ 785	$ 1,201

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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