RETIREMENT AND POST RETIREMENT HEALTH CARE PLANS (Schedule Of Net Periodic Defined Benefit Pension Cost) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Service Cost	$ 1.6	$ 1.8
Interest Cost	2.7	2.4
Expected Return on Plan Assets	(3.1)	(3.0)
Amortization of Prior Service Cost and Net Actuarial Loss	0.5	1.0
Net Periodic Benefit Cost	$ 1.7	$ 2.2