Accounting Policies Changes in Accounting Principles (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Oct. 02, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Selling, General and Administrative	$ 560	$ 472
Operating Income (Loss)	1,455	705
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	1,410	616
Income Tax Expense	284	144
Net Income	1,126	472
Net income attributable to Tyson	$ 1,121	$ 467
Diluted (USD per share)	$ 3.07	$ 1.28
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ 1,126	$ 549
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	1,121	544
Inventory, Net	4,454		$ 4,382
Assets, Current	10,136		9,822
Assets	36,824		36,309
Deferred Income Taxes	2,274		2,195
Retained earnings	(18,453)		(17,502)
Total Tyson Shareholders’ Equity	18,403		17,723
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	18,542	15,781	17,854
Liabilities and Equity	36,824		$ 36,309
Deferred income taxes	77	17
Increase (Decrease) in Operating Capital	(82)	580
Restricted Cash	$ 172	$ 29
Class A [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Basic (USD per share)	$ 3.16	$ 1.31
Class B [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Basic (USD per share)	$ 2.84	$ 1.18