Goodwill And Intangible Assets (Schedule Of Estimated Amortization) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 44.0	$ 33.2	$ 20.0
Future Amortization Expense, Remainder of Fiscal Year	44.1
Future Amortization Expense, Year One	42.8
Future Amortization Expense, Year Two	35.0
Future Amortization Expense, Year Three	30.8
Future Amortization Expense, Year Four	$ 24.4