CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 483	$ 485	$ 1,491	$ 1,345
Other comprehensive (loss) income:
Foreign currency translation adjustments	(66)	107	(313)	457
Derivative instrument adjustments, net of tax	(1)	(5)	7	(13)
Unrealized gain (loss) on available-for-sale securities, net of tax	0	1	0	(1)
Pension and postretirement adjustments, net of tax	0	0	0	0
Reclassification of losses, net of tax	2	4	18	5
Net other comprehensive (loss) income	(65)	107	(288)	448
Comprehensive income	$ 418	$ 592	$ 1,203	$ 1,793

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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