Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net income	$ 724	$ 513
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax of $(24) and ($13)	187	102
Net change in unrealized gains (losses) on available-for-sale securities:
Unrealized gains (losses), net of tax of $0 and $(1)	(2)	6
Reclassification adjustment for losses (gains) included in “Other income (expense), net,” net of tax of $(1) and $0	3	1
Net unrealized gains (losses) on available-for-sale securities	1	7
Total other comprehensive income (loss)	188	109
Comprehensive income	$ 912	$ 622