CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 2,616	$ 5,106	$ 5,045	$ 10,093
Other comprehensive income (loss):
Change in foreign currency translation adjustment, net of tax	90	(372)	(85)	(278)
Change in unrealized gain/loss on available-for-sale investments and other, net of tax	208	(21)	362	(182)
Comprehensive income	$ 2,914	$ 4,713	$ 5,322	$ 9,633