Debt - Additional Information (Details) - USD ($) $ in Millions	Jun. 29, 2024	Sep. 30, 2023
Debt Instrument [Line Items]
Commercial paper	$ 2,994	$ 5,985
Fixed-rate notes, aggregate carrying amount	98,300	105,100
Commercial paper
Debt Instrument [Line Items]
Commercial paper	3,000	6,000
Level 2
Debt Instrument [Line Items]
Fixed-rate notes, aggregate fair value	$ 86,200	$ 90,800