Segment Information - Reportable Segments and Reconciliation to Consolidated Net Income (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) segment	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment			3
Segment Reporting Disclosure [Line Items]
Net sales	$ 127,101	$ 110,812	$ 364,779	$ 332,410
Operating expenses	124,576	105,960	355,268	310,991
Operating income	2,525	4,852	9,511	21,419
Total non-operating income (expense)	419	(537)	(14,485)	1,798
Benefit (provision) for income taxes	(69)	(1,155)	1,990	(4,179)
Equity-method investment activity, net of tax	(3)	(4)	(16)	3
Net income (loss)	2,872	3,156	(3,000)	19,041	$ 11,323	$ 26,263
North America
Segment Reporting Disclosure [Line Items]
Net sales	78,843	65,557	222,517	197,473
Operating expenses	79,255	64,677	225,124	189,996
Operating income	(412)	880	(2,607)	7,477
International
Segment Reporting Disclosure [Line Items]
Net sales	27,720	29,145	83,544	90,515
Operating expenses	30,186	30,056	89,062	89,812
Operating income	(2,466)	(911)	(5,518)	703
AWS
Segment Reporting Disclosure [Line Items]
Net sales	20,538	16,110	58,718	44,422
Operating expenses	15,135	11,227	41,082	31,183
Operating income	$ 5,403	$ 4,883	$ 17,636	$ 13,239