Segment Information - Depreciation Expense, by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Depreciation expense	$ 12,138	$ 8,831	$ 6,362
North America
Segment Reporting Information [Line Items]
Depreciation expense	4,415	3,029	1,971
International
Segment Reporting Information [Line Items]
Depreciation expense	1,628	1,278	930
AWS
Segment Reporting Information [Line Items]
Depreciation expense	$ 6,095	$ 4,524	$ 3,461