Derivative and Financial Instruments (Notional Amounts of Outstanding Derivative Contracts) (Details) - USD ($) $ in Millions	Jun. 29, 2025	Sep. 29, 2024
Coffee Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 509	$ 154
Cross-Currency Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	4,197	4,213
Dairy Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount	0	65
Diesel and Other Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount	13	3
Foreign Currency Contract - Other [Member]
Derivative [Line Items]
Derivative, Notional Amount	1,018	920
Interest Rate Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 350	$ 350