Pension Plans (Schedule Of Net Periodic Defined Benefit Pension Cost) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Pension and Other Postretirement Benefit Expense [Abstract]
Service cost	$ 0.6	$ 0.6	$ 1.2	$ 1.3
Interest cost	1.8	2.0	3.7	4.0
Expected return on plan assets	(1.9)	(1.8)	(3.7)	(3.6)
Amortization of prior service cost and net actuarial loss	1.0	0.9	1.9	1.8
Net periodic benefit expense	$ 1.5	$ 1.7	$ 3.1	$ 3.5