Derivative Financial Instruments (Notional Amounts of Outstanding Derivative Contracts) (Details) - USD ($) $ in Millions	Sep. 29, 2019	Sep. 30, 2018
Interest Rate Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 1,500	$ 750
Cross-Currency Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	341	434
Foreign Currency Contract - Other [Member]
Derivative [Line Items]
Derivative, Notional Amount	1,125	914
Coffee Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount	52	0
Dairy Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount	1	16
Diesel and Other Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 17	$ 21