Asset Impairments, Exit Costs And Other Charges (Summary Of Charges Recognized In Accompanying Consolidated Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 25, 2010	Dec. 26, 2009
Restructuring Cost and Reserve [Line Items]
Total	$ 58,000	$ 87,000	$ 253,000
Cost Of Goods Sold And Occupancy Costs [Member]
Restructuring Cost and Reserve [Line Items]
Total	2,000		13,000
Store And Warehouse Operating And Selling Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Total	25,000	14,000	188,000
Other Asset Impairments [Member]
Restructuring Cost and Reserve [Line Items]
Total		51,000	26,000
General And Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Total	$ 31,000	$ 22,000	$ 26,000