Earnings Per Share (Schedule Of Earnings Per Share, Basic And Diluted) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Mar. 28, 2020	Mar. 30, 2019
Earnings Per Share, Basic and Diluted [Line Items]
Net Income	$ 367	$ 430	$ 928	$ 982
Less: Net Income Attributable to Noncontrolling Interests	3	4	7	5
Net income attributable to Tyson	364	426	921	977
Undistributed earnings	$ 214	$ 293	$ 605	$ 683
Stock options, restricted stock and performance units	2	2	3	2
Denominator for diluted earnings per share – adjusted weighted average shares and assumed conversions	365	366	366	366
Diluted	$ 1.00	$ 1.17	$ 2.52	$ 2.67
Class A [Member]
Earnings Per Share, Basic and Diluted [Line Items]
Less dividends declared:	$ 124	$ 110	$ 261	$ 243
Undistributed earnings	$ 176	$ 241	$ 498	$ 562
Weighted average number of shares outstanding - Basic	293	294	293	294
Net Income Per Share Attributable to Tyson - Basic	$ 1.03	$ 1.20	$ 2.59	$ 2.74
Common Stock, Dividends, Per Share, Declared	$ 0.420	$ 0.375	$ 0.885	$ 0.825
Class B [Member]
Earnings Per Share, Basic and Diluted [Line Items]
Less dividends declared:	$ 26	$ 23	$ 55	$ 51
Undistributed earnings	$ 38	$ 52	$ 107	$ 121
Weighted average number of shares outstanding - Basic	70	70	70	70
Net Income Per Share Attributable to Tyson - Basic	$ 0.92	$ 1.07	$ 2.32	$ 2.46
Common Stock, Dividends, Per Share, Declared	$ 0.378	$ 0.338	$ 0.797	$ 0.743