Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Total net sales	$ 232,887	$ 177,866	$ 135,987
Operating expenses:
Cost of sales	139,156	111,934	88,265
Fulfillment	34,027	25,249	17,619
Marketing Expense	13,814	10,069	7,233
Technology and content	28,837	22,620	16,085
General and administrative	4,336	3,674	2,432
Other operating expense, net	296	214	167
Total operating expenses	220,466	173,760	131,801
Operating income (loss)	12,421	4,106	4,186
Interest income	440	202	100
Interest expense	(1,417)	(848)	(484)
Other income (expense), net	(183)	346	90
Total non-operating income (expense)	(1,160)	(300)	(294)
Income before income taxes	11,261	3,806	3,892
Provision for income taxes	(1,197)	(769)	(1,425)
Equity-method investment activity, net of tax	9	(4)	(96)
Net income	$ 10,073	$ 3,033	$ 2,371
Basic earnings per share	$ 20.68	$ 6.32	$ 5.01
Diluted earnings per share	$ 20.14	$ 6.15	$ 4.90
Weighted-average shares used in computation of earnings per share:
Basic (in shares)	487	480	474
Diluted (in shares)	500	493	484
Net product sales
Total net sales	$ 141,915	$ 118,573	$ 94,665
Net service sales
Total net sales	$ 90,972	$ 59,293	$ 41,322