Net Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Net Income Per Common Share
Net income	$ 100.4	$ 214.5	$ 221.6	$ 412.7
Weighted average number of common shares outstanding (in shares)	80,700,000	81,700,000	80,800,000	82,000,000.0
Dilutive shares (additional common shares issuable under stock-based awards) (in shares)	300,000	400,000	400,000	600,000
Weighted average number of common shares outstanding, assuming dilution (in shares)	81,000,000.0	82,100,000	81,200,000	82,600,000
Net income per common share (in dollars per share)	$ 1.24	$ 2.63	$ 2.74	$ 5.03
Net income per common share, assuming dilution (in dollars per share)	$ 1.24	$ 2.61	$ 2.73	$ 5.00
Antidilutive securities excluded from computation of earnings per share (in shares)	100,000	0	100,000	0