Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		12 Months Ended
	Sep. 26, 2021	Sep. 27, 2020	Jun. 28, 2020
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (in dollars per share)	$ 1.50	$ 1.30
Accounting Standards Update			Accounting Standards Update 2018-18 [Member]