Segment Information and Geographic Data - Information by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 01, 2023	Jun. 25, 2022	Jul. 01, 2023	Jun. 25, 2022
Segment Reporting Information [Line Items]
Net sales	$ 81,797	$ 82,959	$ 293,787	$ 304,182
Operating income	22,998	23,076	87,332	94,543
Americas
Segment Reporting Information [Line Items]
Net sales	35,383	37,472	122,445	129,850
Operating income	13,117	13,914	44,908	48,778
Europe
Segment Reporting Information [Line Items]
Net sales	20,205	19,287	71,831	72,323
Operating income	7,995	7,124	27,380	27,174
Greater China
Segment Reporting Information [Line Items]
Net sales	15,758	14,604	57,475	58,730
Operating income	6,207	5,760	24,175	25,055
Japan
Segment Reporting Information [Line Items]
Net sales	4,821	5,446	18,752	20,277
Operating income	2,443	2,418	9,073	9,263
Rest of Asia Pacific
Segment Reporting Information [Line Items]
Net sales	5,630	6,150	23,284	23,002
Operating income	$ 2,328	$ 2,367	$ 9,447	$ 9,185