Derivative Financial Instruments Pretax Impact on OCI (Details) - Cash Flow Hedging [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gain/(Loss) Recognized in OCI on Derivatives	$ 0	$ (12)	$ 0	$ (12)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain/(Loss) Recognized in OCI on Derivatives	0	(12)	0	(12)
Commodity contracts
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gain/(Loss) Recognized in OCI on Derivatives	0	(11)	0	(11)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain/(Loss) Recognized in OCI on Derivatives	0	(11)	0	(11)
Interest rate hedges
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gain/(Loss) Recognized in OCI on Derivatives	0	(1)	0	(1)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain/(Loss) Recognized in OCI on Derivatives	$ 0	$ (1)	$ 0	$ (1)