Earnings Per Share (Schedule Of Earnings Per Share, Basic And Diluted) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Earnings Per Share, Basic and Diluted [Line Items]
Net Income	$ 472	$ 509
Less: Net Income Attributable to Noncontrolling Interests	5	4
Net income attributable to Tyson	467	505
Undistributed earnings	$ 299	$ 339
Stock options, restricted stock and performance units	2	4
Denominator for diluted earnings per share – adjusted weighted average shares and assumed conversions	365	367
Diluted	$ 1.28	$ 1.38
Class A [Member]
Earnings Per Share, Basic and Diluted [Line Items]
Less dividends declared:	$ 138	$ 137
Undistributed earnings	$ 246	$ 279
Weighted average number of shares outstanding - Basic	293	293
Net Income Per Share Attributable to Tyson - Basic	$ 1.31	$ 1.42
Common Stock, Dividends, Per Share, Declared	$ 0.470	$ 0.465
Class B [Member]
Earnings Per Share, Basic and Diluted [Line Items]
Less dividends declared:	$ 30	$ 29
Undistributed earnings	$ 53	$ 60
Weighted average number of shares outstanding - Basic	70	70
Net Income Per Share Attributable to Tyson - Basic	$ 1.18	$ 1.27
Common Stock, Dividends, Per Share, Declared	$ 0.423	$ 0.419