Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Dec. 27, 2024	Dec. 29, 2023
Earnings Per Share [Abstract]
Net income	$ 162.0	$ 231.3
Weighted average shares outstanding - basic (in shares)	160.4	159.9
Dilutive effect of equity-based awards (in shares)	1.0	1.1
Weighted average shares outstanding - diluted (in shares)	161.4	161.0
Basic (in dollars per share)	$ 1.01	$ 1.45
Diluted (in dollars per share)	$ 1.00	$ 1.44
Anti-dilutive common stock equivalents (in shares)	0.1	0.0