Segment Information Reportable Segments and Reconciliation to Consolidated Net Income (Detail) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) Segment	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
Segment Reporting Disclosure [Line Items]
Number of Reportable Segments | Segment			3
Net sales	$ 30,404	$ 23,185	$ 59,532	$ 45,901
Operating expenses	29,119	22,721	57,176	45,182
Operating income	1,285	464	2,356	719
Total non-operating income (expense)	(106)	(102)	(122)	(336)
Provision for income taxes	(307)	(266)	(782)	(337)
Equity-method investment activity, net of tax	(15)	(4)	(82)	(11)
Net income	857	92	1,370	35	$ 1,931	$ (188)
Operating Segments
Segment Reporting Disclosure [Line Items]
Net sales	30,404	23,185	59,532	45,901
Operating expenses	28,296	22,110	55,764	44,121
Operating income before stock-based compensation and other	2,108	1,075	3,768	1,780
Stock-based compensation and other	823	611	1,412	1,061
North America | Operating Segments
Segment Reporting Disclosure [Line Items]
Net sales	17,674	13,796	34,670	27,202
Operating expenses	16,517	13,093	32,590	25,982
Operating income before stock-based compensation and other	1,157	703	2,080	1,220
Stock-based compensation and other	455	355	790	617
Operating income	702	348	1,290	603
International | Operating Segments
Segment Reporting Disclosure [Line Items]
Net sales	9,844	7,565	19,410	15,310
Operating expenses	9,756	7,584	19,301	15,405
Operating income before stock-based compensation and other	88	(19)	109	(95)
Stock-based compensation and other	223	170	364	288
Operating income	(135)	(189)	(255)	(383)
AWS | Operating Segments
Segment Reporting Disclosure [Line Items]
Net sales	2,886	1,824	5,452	3,389
Operating expenses	2,023	1,433	3,873	2,734
Operating income before stock-based compensation and other	863	391	1,579	655
Stock-based compensation and other	145	86	258	156
Operating income	$ 718	$ 305	$ 1,321	$ 499