Comprehensive Income, Reclassification Out of Accumulated Other Comprehensive Loss (Details) - Pension Costs [Member] - Reclassification out of Accumulated Other Comprehensive Loss [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2023	Jul. 03, 2022	Jul. 02, 2023	Jul. 03, 2022
Amortization of pension items [Abstract]
Pre-tax amount	$ 0.7	$ 3.0	$ 1.2	$ 4.5
Tax	(0.3)	(0.7)	(0.4)	(1.1)
Net of tax	$ 0.4	$ 2.3	$ 0.8	$ 3.4