Commitments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2016	Oct. 03, 2015
Guarantor Obligations [Line Items]
Potential maximum obligation under cash flow assistance programs	$ 310
Total receivables under cash flow assistance programs	3	$ 0
Uncollectible receivables estimated under cash flow assistance programs	0	$ 0
Industrial Revenue Bonds [Member]
Guarantor Obligations [Line Items]
Industrial Revenue Bonds	$ 574
Guarantee of Indebtedness of Others [Member]
Guarantor Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Period (in years)	10 years
Maximum potential amount	$ 40
Residual Value Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum potential amount	$ 95
Guarantor Obligations, Maximum Exposure, Remaining Lease Period (in years)	12 years
Amount recoverable through various recourse provisions	$ 88