Pension Plans (Schedule Of Net Periodic Defined Benefit Pension Cost) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Pension and Other Postretirement Benefit Expense [Abstract]
Service cost	$ 0.7	$ 0.6
Interest cost	1.8	1.9
Expected return on plan assets	(2.0)	(1.8)
Amortization of prior service cost and net actuarial loss	1.1	0.9
Net periodic benefit expense	$ 1.6	$ 1.6