Derivative Financial Instruments (Pretax Impact Of Undesignated Derivative Instruments On The Consolidated Statements Of Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Derivative [Line Items]
Cost of Sales	$ 9,283	$ 9,375
Other Nonoperating Income (Expense)	(19)	(16)
Interest expense	110	120
Cost of Sales
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	95	43
Not Designated as Hedging Instrument | Commodity contracts | Cost of Sales
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	98	29
Not Designated as Hedging Instrument | Foreign exchange contracts | Other income/expense
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	1	4
Fair Value Hedging [Member] | Commodity contracts | Cost of Sales
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(2)	16
Cash Flow Hedging [Member] | Commodity contracts | Cost of Sales
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(1)	(2)
Cash Flow Hedging [Member] | Interest Rate Contract [Member] | Interest Expense [Member]
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ 0	$ (1)