Net Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Apr. 02, 2022	Apr. 03, 2021
Net Income Per Common Share
Net income	$ 198.2	$ 209.5
Weighted average number of common shares outstanding (in shares)	82.4	83.1
Dilutive shares (additional common shares issuable under stock-based awards) (in shares)	0.6	0.8
Weighted average number of common shares outstanding, assuming dilution (in shares)	83.0	83.9
Net income per common share (in dollars per share)	$ 2.41	$ 2.52
Net income per common share, assuming dilution (in dollars per share)	$ 2.39	$ 2.50