Earnings Per Share (Schedule Of Earnings Per Share, Basic And Diluted) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended												12 Months Ended
	Oct. 03, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014		Jun. 28, 2014		Mar. 29, 2014		Dec. 28, 2013		Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Earnings Per Share, Basic and Diluted [Line Items]
Income from continuing operations													$ 1,224	$ 856	$ 848
Less: Net income (loss) attributable to noncontrolling interest													4	(8)	0
Net income from continuing operations attributable to Tyson													1,220	864	848
Undistributed earnings													$ 1,065	$ 749	$ 742
Stock options and restricted stock													5	5	5
Tangible Equity Units													3	1	0
Convertible 2013 Notes													0	0	7
Warrants													0	4	3
Denominator for diluted earnings per share - adjusted weighted average shares and assumed conversions													413	364	367
Net Income Per Share from Continuing Operations Attributable to Tyson - Diluted													$ 2.95	$ 2.37	$ 2.31
Net Income Per Share Attributable to Tyson - Diluted	$ 0.63	$ 0.83	$ 0.75	$ 0.74	$ 0.35	[1]	$ 0.73	[1]	$ 0.60	[1]	$ 0.72	[1]	$ 2.95	$ 2.37	$ 2.12
Class A [Member]
Earnings Per Share, Basic and Diluted [Line Items]
Less dividends:													$ 129	$ 94	$ 87
Undistributed earnings													$ 896	$ 612	$ 606
Weighted average number of shares outstanding - Basic													335	284	282
Net Income Per Share from Continuing Operations Attributable to Tyson - Basic													$ 3.06	$ 2.48	$ 2.46
Net Income Per Share Attributable to Tyson - Basic	0.65	0.86	0.78	0.77	0.37	[1]	0.75	[1]	0.64	[1]	0.76	[1]	$ 3.06	$ 2.48	$ 2.26
Class B [Member]
Earnings Per Share, Basic and Diluted [Line Items]
Less dividends:													$ 26	$ 21	$ 19
Undistributed earnings													$ 169	$ 137	$ 136
Weighted average number of shares outstanding - Basic													70	70	70
Net Income Per Share from Continuing Operations Attributable to Tyson - Basic													$ 2.79	$ 2.26	$ 2.22
Net Income Per Share Attributable to Tyson - Basic	$ 0.59	$ 0.78	$ 0.71	$ 0.71	$ 0.32		$ 0.68		$ 0.58		$ 0.68		$ 2.79	$ 2.26	$ 2.04

[1] The sum of the quarterly earnings per share amounts will not equal the total for the year due to the effects of rounding and dilution impact as a result of issuing Class A shares and tangible equity units in the fourth quarter of fiscal 2014.