Segment Information - Reconciliation of Property and Equipment Additions from Segments to Consolidated (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Property and equipment additions	$ 57,976	$ 30,018	$ 25,068
Operating Segments | North America
Segment Reporting Information [Line Items]
Property and equipment additions	29,889	11,752	10,749
Operating Segments | International
Segment Reporting Information [Line Items]
Property and equipment additions	8,072	3,298	2,476
Operating Segments | AWS
Segment Reporting Information [Line Items]
Property and equipment additions	16,530	13,058	9,783
Operating Segments | AWS | Assets held under capital leases
Segment Reporting Information [Line Items]
Property and equipment additions			8,400
Operating Segments | AWS | Assets Held Under Finance Leases
Segment Reporting Information [Line Items]
Property and equipment additions	7,700	10,600
Operating Segments | AWS | Assets under financing obligations
Segment Reporting Information [Line Items]
Property and equipment additions	130	0	245
Operating Segments | North America and International | Assets held under capital leases
Segment Reporting Information [Line Items]
Property and equipment additions			2,000
Operating Segments | North America and International | Assets Held Under Finance Leases
Segment Reporting Information [Line Items]
Property and equipment additions	5,600	3,800
Operating Segments | North America and International | Assets under financing obligations
Segment Reporting Information [Line Items]
Property and equipment additions	2,700	1,300	3,000
Corporate
Segment Reporting Information [Line Items]
Property and equipment additions	$ 3,485	$ 1,910	$ 2,060