Borrowings Commercial Paper Activity (Details) - USD ($) $ in Millions		12 Months Ended
		Sep. 27, 2025	Sep. 28, 2024
Commercial Paper Rollforward [Line Items]
Beginning Balance		$ 3,040	$ 1,476
Additions		2,361	4,736
Payments		(3,304)	(3,204)
Other Activity		(35)	32
Ending Balance		2,062	3,040
Commercial Paper with original maturities less that three months
Commercial Paper Rollforward [Line Items]
Beginning Balance		727	289
Additions	[1]	1,232	431
Payments	[1]	0	0
Other Activity		4	7
Ending Balance		1,963	727
Commercial paper with original maturities greater than three months
Commercial Paper Rollforward [Line Items]
Beginning Balance		2,313	1,187
Additions		1,129	4,305
Payments		(3,304)	(3,204)
Other Activity		(39)	25
Ending Balance		$ 99	$ 2,313

[1] Borrowings and reductions of borrowings are reported net.