Business Segment Information (Schedule Of Reconciliation Of Segment Operating Profit To Income From Continuing Operations Before Interest) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 01, 2012		Mar. 27, 2011
Segment operating profit	$ 185,835		$ 164,504
Goodwill impairment	332,128
Restructuring and other impairment charges	(838)		595
Income (loss) from continuing operations before interest and taxes	(270,395)		49,665
Segment [Member]
Segment operating profit	$ 60,895	[1]	$ 50,260	[1]

[1] Segment operating profit includes a segment's net revenues from external customers reduced by its cost of goods sold, selling, general and administrative expenses, and an allocation of corporate expenses. Segment operating profit excludes goodwill impairment charges, restructuring and impairment charges, interest income and expense, loss on extinguishment of debt and taxes on income.