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Restructuring Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Restructuring Narrative (Details) - USD ($) $ in Millions	Oct. 02, 2021	Oct. 03, 2020	Sep. 28, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 5	$ 37
Restructuring and Related Cost, Incurred Cost	0	77	$ 41
Restructuring and Related Cost, Cost Incurred to Date	327
Payments for Restructuring	32
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		60
2020 Program [Member] \| Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		17
2020 Program [Member] \| Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		43
2017 Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			41
Restructuring and Related Cost, Cost Incurred to Date		267
2017 Program [Member] \| Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		17
Employee Severance [Member] \| 2020 Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	60	60
Employee Severance [Member] \| 2017 Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		53
New Technology Implementation and Accelerated Depreciation of Technology Assets Cost [Member] \| 2017 Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		17
Restructuring and Related Cost, Cost Incurred to Date		117
Technology Impairment and Related Costs [Member] \| 2017 Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		72
Contract Termination [Member] \| 2017 Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		25
Beef [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	9	1
Restructuring and Related Cost, Cost Incurred to Date	22
Pork [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	3	1
Restructuring and Related Cost, Cost Incurred to Date	8
Chicken [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	34	21
Restructuring and Related Cost, Cost Incurred to Date	141
Prepared Foods [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	28	18
Restructuring and Related Cost, Cost Incurred to Date	152
Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	$ 3	$ 0
Restructuring and Related Cost, Cost Incurred to Date	$ 4