Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total net sales	$ 116,444	$ 108,518
Online stores
Disaggregation of Revenue [Line Items]
Total net sales	51,129	52,901
Physical stores
Disaggregation of Revenue [Line Items]
Total net sales	4,591	3,920
Third-party seller services
Disaggregation of Revenue [Line Items]
Total net sales	25,335	23,709
Subscription services
Disaggregation of Revenue [Line Items]
Total net sales	8,410	7,580
Advertising services
Disaggregation of Revenue [Line Items]
Total net sales	7,877	6,381
AWS
Disaggregation of Revenue [Line Items]
Total net sales	18,441	13,503
Other
Disaggregation of Revenue [Line Items]
Total net sales	$ 661	$ 524