CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 10,217	$ 3,688	$ 2,940
Other comprehensive loss:
Change in foreign currency translation adjustment, net of tax	(152)	(202)	(239)
Change in unrealized gain/loss on available-for-sale investments and other, net of tax	(96)	(25)	(3)
Comprehensive income	$ 9,969	$ 3,461	$ 2,698