RETIREMENT AND POST RETIREMENT HEALTH CARE PLANS (Schedule Of Net Periodic Defined Benefit Pension Cost) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Service Cost	$ 0.8	$ 1.6
Interest Cost	2.1	2.7
Expected Return on Plan Assets	(3.3)	(3.1)
Amortization of Prior Service Cost and Net Actuarial Loss	0.1	0.5
Net Periodic Benefit Cost	$ (0.3)	$ 1.7