Pension Plans (Schedule Of Net Periodic Defined Benefit Pension Cost) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Pension and Other Postretirement Benefit Expense [Abstract]
Service cost	$ 2.7	$ 0.6	$ 7.4	$ 1.8
Interest cost	2.9	1.9	8.3	5.9
Expected return on plan assets	(2.8)	(2.2)	(8.0)	(6.7)
Amortization of prior service cost and net actuarial loss	1.0	0.6	3.0	1.7
Net periodic benefit cost	$ 3.8	$ 0.9	$ 10.7	$ 2.7