RETIREMENT AND POST RETIREMENT HEALTH CARE PLANS (Schedule Of Net Periodic Defined Benefit Pension Cost) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Service Cost	$ 0.3	$ 0.8
Interest Cost	1.5	2.1
Expected Return on Plan Assets	(3.1)	(3.3)
Amortization of Prior Service Cost and Net Actuarial Loss	0.4	0.1
Net Periodic Benefit Income	$ (0.9)	$ (0.3)