Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 1,863	$ 1,244	$ 5,139	$ 3,864
Other comprehensive (loss) income, net of reclassification adjustments and taxes:
Foreign currency translation losses	(86)	(124)	(241)	(125)
Effective portion of cash flow hedges	(53)	228	10	205
Net unrealized losses on available-for-sale securities	(35)	(94)	(3)	(33)
Other	5	9	5	10
Other comprehensive (loss) income, net of tax	(169)	19	(229)	57
Comprehensive income	$ 1,694	$ 1,263	$ 4,910	$ 3,921