Segment Information and Geographic Data - Information by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 01, 2023	Mar. 26, 2022	Apr. 01, 2023	Mar. 26, 2022
Segment Reporting Information [Line Items]
Net sales	$ 94,836	$ 97,278	$ 211,990	$ 221,223
Operating income	28,318	29,979	64,334	71,467
Americas
Segment Reporting Information [Line Items]
Net sales	37,784	40,882	87,062	92,378
Operating income	13,927	15,279	31,791	34,864
Europe
Segment Reporting Information [Line Items]
Net sales	23,945	23,287	51,626	53,036
Operating income	9,368	8,505	19,385	20,050
Greater China
Segment Reporting Information [Line Items]
Net sales	17,812	18,343	41,717	44,126
Operating income	7,531	8,112	17,968	19,295
Japan
Segment Reporting Information [Line Items]
Net sales	7,176	7,724	13,931	14,831
Operating income	3,394	3,496	6,630	6,845
Rest of Asia Pacific
Segment Reporting Information [Line Items]
Net sales	8,119	7,042	17,654	16,852
Operating income	$ 3,268	$ 2,823	$ 7,119	$ 6,818