Defined Benefit Plans (Components Of Net Periodic Benefit Cost Of Other PostRetirement Benefit Pension Pans) (Details) - Other postretirement benefit plans - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Oct. 02, 2015	Sep. 30, 2016	Oct. 02, 2015
Defined Benefit Plan Disclosure
Service cost	$ 0.2	$ 0.3	$ 0.6	$ 0.9
Interest cost	1.4	1.8	4.2	5.8
Amortization of actuarial (gain) loss	(0.1)	(0.2)	0.1	1.2
Amortization of prior service credit	(0.8)	(0.8)	(2.4)	(2.4)
Net periodic benefit cost	$ 0.7	$ 1.1	$ 2.5	$ 5.5