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Equity (Narrative) (Details) $ / shares in Units, shares in Millions				12 Months Ended
	Nov. 12, 2018 $ / shares	Jul. 17, 2017 USD ($)	Feb. 04, 2016 shares	Sep. 29, 2018 Classes $ / shares shares	Sep. 30, 2017 $ / shares	Oct. 01, 2016 $ / shares	Sep. 27, 2014 USD ($) shares $ / shares
Class of Stock [Line Items]
Number of classes of common stock | Classes				2
Cash Dividends, Paid Ratio To Other Class Of Stock, Maximum				90.00%
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased | shares				22.9
TEUs issued (in units) | shares							30.0
TEUs, Dividend Rate							4.75%
Net proceeds from issuance of TEUs | $							$ 1,454,000,000
TEUs, stated amount per unit (in dollars per unit)							$ 50
TEUs, Equity Component | $							$ 1,295,000,000
TEUs, Debt Component | $							$ 205,000,000
Convertible Debt [Member] | Tangible Equity Unit, Senior Amortizing Note [Member]
Class of Stock [Line Items]
Debt Instrument, Periodic Payment | $		$ 0.59
Tyson Limited Partnership And Tyson Family [Member]
Class of Stock [Line Items]
Related Party Voting Rights Percentage				70.96%
Class A [Member]
Class of Stock [Line Items]
Common stock, par value				$ 0.1	$ 0.10
Common Stock, Vote Entitlement Per Share				1
Common Stock, Dividends, Per Share, Cash Paid				1.20	0.90	$ 0.60
Common Stock, Dividends, Per Share, Declared				$ 1.275	0.975	0.650
Stock Repurchase Program, Increase (Decrease) in Authorized Shares | shares			50.0
Class A [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.375
Class A [Member] | Tyson Limited Partnership And Tyson Family [Member]
Class of Stock [Line Items]
Tyson Family Ownership Percentage				2.09%
Class B [Member]
Class of Stock [Line Items]
Common stock, par value				$ 0.1	0.10
Common Stock, Vote Entitlement Per Share				10
Common Stock, Dividends, Per Share, Cash Paid				1.08	0.81	0.54
Common Stock, Dividends, Per Share, Declared				$ 1.148	$ 0.878	$ 0.585
Class B [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.3375
Class B [Member] | Tyson Limited Partnership [Member]
Class of Stock [Line Items]
Tyson Family Ownership Percentage				99.985%

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