Segment Reporting (Segment Reporting Information, By Segment) (Details) - USD ($)		3 Months Ended			6 Months Ended
		Mar. 28, 2020		Mar. 30, 2019	Mar. 28, 2020		Mar. 30, 2019
Segment Reporting Information [Line Items]
Sales		$ 10,888,000,000		$ 10,443,000,000	$ 21,703,000,000		$ 20,636,000,000
Operating Income (Loss)		501,000,000		635,000,000	1,327,000,000		1,442,000,000
Total other expense		10,000,000		107,000,000	111,000,000		201,000,000
Income before income taxes		491,000,000		528,000,000	1,216,000,000		1,241,000,000
Beef [Member]
Segment Reporting Information [Line Items]
Sales		3,979,000,000		3,884,000,000	7,817,000,000		7,810,000,000
Pork [Member]
Segment Reporting Information [Line Items]
Sales		1,266,000,000		1,172,000,000	2,645,000,000		2,351,000,000
Chicken [Member]
Segment Reporting Information [Line Items]
Sales		3,397,000,000		3,407,000,000	6,689,000,000		6,522,000,000
Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales		2,080,000,000		2,027,000,000	4,220,000,000		4,176,000,000
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales		465,000,000		277,000,000	963,000,000		420,000,000
Operating Segments [Member] | Beef [Member]
Segment Reporting Information [Line Items]
Sales		3,979,000,000		3,884,000,000	7,817,000,000		7,810,000,000
Operating Income (Loss)		109,000,000		156,000,000	519,000,000		461,000,000
Operating Segments [Member] | Pork [Member]
Segment Reporting Information [Line Items]
Sales		1,266,000,000		1,172,000,000	2,645,000,000		2,351,000,000
Operating Income (Loss)		93,000,000		100,000,000	284,000,000		195,000,000
Operating Segments [Member] | Chicken [Member]
Segment Reporting Information [Line Items]
Sales		3,397,000,000		3,407,000,000	6,689,000,000		6,522,000,000
Operating Income (Loss)		99,000,000	[1]	141,000,000	156,000,000	[1]	301,000,000
Operating Segments [Member] | Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales		2,080,000,000		2,027,000,000	4,220,000,000		4,176,000,000
Operating Income (Loss)		191,000,000		245,000,000	349,000,000		510,000,000
Segment Reconciling Items [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales		465,000,000		277,000,000	963,000,000		420,000,000
Operating Income (Loss)	[2]	9,000,000		(7,000,000)	19,000,000		(25,000,000)
Business Combination, Integration Related Costs		0		4,000,000	4,000,000		5,000,000
Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales		$ (299,000,000)		(324,000,000)	$ (631,000,000)		(643,000,000)
Keystone Foods [Member] | Operating Segments [Member] | Chicken [Member]
Segment Reporting Information [Line Items]
Business Acquisition, Expense from Purchase Accounting and Acquisition Related Costs				5,000,000			13,000,000
Keystone Foods [Member] | Segment Reconciling Items [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Business Acquisition, Expense from Purchase Accounting and Acquisition Related Costs				$ 6,000,000			$ 24,000,000

[1] (a) Chicken operating income included $5 million and $13 million in Keystone Foods purchase accounting and acquisition related costs for the three and six months ended March 30, 2019, respectively.

[2] (b) International/Other operating results included $6 million and $24 million in Keystone Foods purchase accounting and acquisition related costs for the three and six months ended March 30, 2019, respectively. There were no third-party merger and integration costs and corporate overhead of Tyson New Ventures, LLC for the three months ended March 28, 2020, $4 million for the three months ended March 30, 2019, and $4 million and $5 million for the six months ended March 28, 2020, and March 30, 2019, respectively.