Pension Plans (Schedule Of Net Periodic Defined Benefit Pension Cost) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended		15 Months Ended
	Sep. 29, 2012	Sep. 29, 2012	Oct. 01, 2011	Oct. 01, 2012
Pension and Other Postretirement Benefit Expense [Abstract]
Service cost	$ 0.6	$ 1.8	$ 1.9	$ 0.6
Interest cost	1.9	5.6	5.7	1.7
Expected return on plan assets	(1.8)	(5.5)	(5.2)	(1.6)
Amortization of prior service cost and net actuarial loss	0.9	2.8	2.7	0.9
Net periodic benefit expense	$ 1.6	$ 4.7	$ 5.1	$ 1.6