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
Apr. 03, 2022	Apr. 04, 2021
Amortization of pension items [Abstract]
Pre-tax amount	$ 1.5	$ 3.3
Tax	(0.3)	(0.8)
Net of tax	$ 1.2	$ 2.5

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

Apr. 03, 2022

Apr. 04, 2021

Amortization of pension items [Abstract]

Pre-tax amount

$ 1.5

$ 3.3

Tax

(0.3)

(0.8)

Net of tax

$ 1.2

$ 2.5