Pension Plans (Schedule Of Net Periodic Defined Benefit Pension Cost) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
Pension Plans [Abstract]
Service cost	$ 0.6	$ 0.7
Interest cost	1.9	2.0
Expected return on plan assets	(1.8)	(1.8)
Amortization of prior service cost and net actuarial loss	0.9	0.9
Net periodic benefit expense	$ 1.6	$ 1.8