Segment Information - Depreciation and Amortization Expense, by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Depreciation and amortization expense	$ 16,239	$ 15,150	$ 12,138
North America
Segment Reporting Information [Line Items]
Depreciation and amortization expense	6,421	5,106	4,415
International
Segment Reporting Information [Line Items]
Depreciation and amortization expense	2,215	1,886	1,628
AWS
Segment Reporting Information [Line Items]
Depreciation and amortization expense	$ 7,603	$ 8,158	$ 6,095