Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Mar. 28, 2025	Dec. 27, 2024	Mar. 29, 2024	Dec. 29, 2023	Mar. 28, 2025	Mar. 29, 2024
Earnings Per Share [Abstract]
Net income	$ 68.7	$ 162.0	$ 183.3	$ 231.3	$ 230.7	$ 414.6
Weighted average shares outstanding - basic (in shares)	158.5		160.4		159.4	160.1
Dilutive effect of equity-based awards (in shares)	0.3		1.0		0.7	1.2
Weighted average shares outstanding - diluted (in shares)	158.8		161.4		160.1	161.3
Basic (in dollars per share)	$ 0.43		$ 1.14		$ 1.45	$ 2.59
Diluted (in dollars per share)	$ 0.43		$ 1.14		$ 1.44	$ 2.57
Anti-dilutive common stock equivalents (in shares)	2.6		0.3		0.1	0.0