Segment Information and Geographic Data - Information by Reportable Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 24, 2022	Sep. 25, 2021
Segment Reporting Information [Line Items]
Net sales	$ 383,285	$ 394,328	$ 365,817
Operating income	114,301	119,437	108,949
Americas
Segment Reporting Information [Line Items]
Net sales	162,560	169,658	153,306
Operating income	60,508	62,683	53,382
Europe
Segment Reporting Information [Line Items]
Net sales	94,294	95,118	89,307
Operating income	36,098	35,233	32,505
Greater China
Segment Reporting Information [Line Items]
Net sales	72,559	74,200	68,366
Operating income	30,328	31,153	28,504
Japan
Segment Reporting Information [Line Items]
Net sales	24,257	25,977	28,482
Operating income	11,888	12,257	12,798
Rest of Asia Pacific
Segment Reporting Information [Line Items]
Net sales	29,615	29,375	26,356
Operating income	$ 12,066	$ 11,569	$ 9,817