Commitments (Narrative) (Details) - USD ($)	9 Months Ended
	Jun. 27, 2020	Sep. 28, 2019	Jun. 29, 2019
Guarantor Obligations [Line Items]
Guarantor Obligations, Current Carrying Value	$ 0	$ 0
Potential maximum obligation under cash flow assistance programs	320,000,000
Total receivables under cash flow assistance programs	21,000,000	5,000,000
Cash Flow Assistance Program, Estimated Allowance For Uncollectible Receivables	0	0
Restricted Cash	82,000,000	0	$ 0
Industrial Revenue Bonds [Member]
Guarantor Obligations [Line Items]
Industrial Revenue Bonds	$ 573,000,000
Guarantee Obligations [Member]
Guarantor Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Period	10 years
Lease Residual Value Guarantees [Domain]
Guarantor Obligations [Line Items]
Maximum potential amount	$ 88,000,000
Grower Commitments [Member]
Guarantor Obligations [Line Items]
Other Commitment, to be Paid, Year One		253,000,000
Other Commitment, to be Paid, Year Two		131,000,000
Other Commitment, to be Paid, Year Three		86,000,000
Other Commitment, to be Paid, Year Four		58,000,000
Other Commitment, to be Paid, Year Five		49,000,000
Other Commitment, to be Paid, after Year Five		122,000,000
Other Commitment		$ 699,000,000