Debt - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 28, 2024	Sep. 30, 2023
Debt Instrument [Line Items]
Commercial paper	$ 9,967	$ 5,985
Level 2
Debt Instrument [Line Items]
Fixed-rate notes, aggregate fair value	88,400	90,800
Commercial paper
Debt Instrument [Line Items]
Commercial paper	$ 10,000	$ 6,000
Commercial paper, general maturity period (less than)	9 months	9 months
Commercial paper, weighted-average interest rate	5.00%	5.28%