Segment Information and Geographic Data - Net Sales for Countries that Individually Accounted for More than 10% of the Total (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 24, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 391,035	$ 383,285	$ 394,328
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	142,196	138,573	147,859
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	66,952	72,559	74,200
Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 181,887	$ 172,153	$ 172,269