Summary Of Accounting Policies (Accumulated Other Comprehensive Loss) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Jan. 01, 2011
Summary Of Accounting Policies [Abstract]
Foreign currency translation adjustment	$ 94.7	$ 106.2
Unamortized loss on pension and postretirement benefit plans, net of tax of $157.8 million and $126.9 million, respectively	(271.4)	(213.5)
Other	2.1	2.5
Accumulated other comprehensive loss	(174.6)	(104.8)
Unamortized loss on pension and postretirement benefit plans, tax	$ 157.8	$ 126.9