Segment Information - Reportable Segments and Reconciliation to Consolidated Net Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Net sales	$ 469,822	$ 386,064	$ 280,522
Operating expenses	444,943	363,165	265,981
Operating income	24,879	22,899	14,541
Total non-operating income (expense)	13,272	1,279	(565)
Provision for income taxes	(4,791)	(2,863)	(2,374)
Equity-method investment activity, net of tax	4	16	(14)
Net income	33,364	21,331	11,588
North America
Segment Reporting Information [Line Items]
Net sales	279,833	236,282	170,773
Operating expenses	272,562	227,631	163,740
Operating income	7,271	8,651	7,033
International
Segment Reporting Information [Line Items]
Net sales	127,787	104,412	74,723
Operating expenses	128,711	103,695	76,416
Operating income	(924)	717	(1,693)
AWS
Segment Reporting Information [Line Items]
Net sales	62,202	45,370	35,026
Operating expenses	43,670	31,839	25,825
Operating income	$ 18,532	$ 13,531	$ 9,201