Segment Information and Geographic Data - Information by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 25, 2022	Jun. 26, 2021	Jun. 25, 2022	Jun. 26, 2021
Segment Reporting Information [Line Items]
Net sales	$ 82,959	$ 81,434	$ 304,182	$ 282,457
Operating income	23,076	24,126	94,543	85,163
Americas
Segment Reporting Information [Line Items]
Net sales	37,472	35,870	129,850	116,486
Operating income	13,914	12,916	48,778	40,751
Europe
Segment Reporting Information [Line Items]
Net sales	19,287	18,943	72,323	68,513
Operating income	7,124	7,085	27,174	24,939
Greater China
Segment Reporting Information [Line Items]
Net sales	14,604	14,762	58,730	53,803
Operating income	5,760	6,303	25,055	22,591
Japan
Segment Reporting Information [Line Items]
Net sales	5,446	6,464	20,277	22,491
Operating income	2,418	3,031	9,263	9,962
Rest of Asia Pacific
Segment Reporting Information [Line Items]
Net sales	6,150	5,395	23,002	21,164
Operating income	$ 2,367	$ 2,116	$ 9,185	$ 7,805