CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 2,379	$ 896	$ 5,944	$ 2,127
Other comprehensive income (loss):
Change in foreign currency translation adjustment, net of tax	35	(22)	55	(155)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment and Other, Net of Tax	(33)	(1)	28	3
Comprehensive income	$ 2,381	$ 873	$ 6,027	$ 1,975