Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Total net sales	$ 386,064	$ 280,522	$ 232,887
Operating expenses:
Cost of sales	233,307	165,536	139,156
Fulfillment	58,517	40,232	34,027
Technology and content	42,740	35,931	28,837
Marketing	22,008	18,878	13,814
General and administrative	6,668	5,203	4,336
Other operating expense (income), net	(75)	201	296
Total operating expenses	363,165	265,981	220,466
Operating income	22,899	14,541	12,421
Interest income	555	832	440
Interest expense	(1,647)	(1,600)	(1,417)
Other income (expense), net	2,371	203	(183)
Total non-operating income (expense)	1,279	(565)	(1,160)
Income before income taxes	24,178	13,976	11,261
Provision for income taxes	(2,863)	(2,374)	(1,197)
Equity-method investment activity, net of tax	16	(14)	9
Net income	$ 21,331	$ 11,588	$ 10,073
Basic earnings per share (in dollars per share)	$ 42.64	$ 23.46	$ 20.68
Diluted earnings per share (in dollars per share)	$ 41.83	$ 23.01	$ 20.14
Weighted-average shares used in computation of earnings per share:
Basic (in shares)	500	494	487
Diluted (in shares)	510	504	500
Net product sales
Total net sales	$ 215,915	$ 160,408	$ 141,915
Net service sales
Total net sales	$ 170,149	$ 120,114	$ 90,972