Segment Information (Summary Of Net Sales And Non Current Assets By Geography) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended													12 Months Ended
	Dec. 31, 2011		Sep. 24, 2011	Jun. 25, 2011		Mar. 26, 2011	Dec. 25, 2010		Sep. 25, 2010	Jun. 26, 2010		Mar. 27, 2010		Dec. 31, 2011	Dec. 25, 2010	Dec. 26, 2009
Segment Reporting Information [Line Items]
Net sales	$ 1,835,800	[1]	$ 1,774,800	$ 1,647,600	[2]	$ 1,863,000	$ 1,766,200	[3]	$ 1,813,400	$ 1,653,200	[4]	$ 1,911,700	[5]	$ 7,121,167	$ 7,150,007	$ 7,212,050
Non-current assets	2,130,301						2,064,643							2,130,301	2,064,643	2,048,195
Foreign [Member]
Segment Reporting Information [Line Items]
Net sales														1,449,429	1,379,971	1,259,336
Non-current assets	137,627						139,661							137,627	139,661	138,441
United States [Member]
Segment Reporting Information [Line Items]
Net sales														5,671,738	5,770,036	5,952,714
Non-current assets	$ 1,992,674						$ 1,924,982							$ 1,992,674	$ 1,924,982	$ 1,909,754

[1] Includes an $11.2 million non-cash pre-tax charge to impair fixed assets associated with our Retail stores in the U.S. and $6.6 million of pre-tax charges for severance primarily related to Contract and Retail reorganizations.

[2] Includes a $5.6 million pre-tax charge related to Retail store closures in the U.S., and $8.3 million of pre-tax charges for severance related to Contract and Retail reorganizations.

[3] Includes an $11.0 million non-cash pre-tax charge to impair fixed assets associated with our Retail stores in the U.S., $2.8 million of pre-tax income related to the adjustment of previously established reserves for severance and store closures and a $5.5 million of pre-tax income related to the adjustment of a reserve associated with our legacy building materials manufacturing facility near Elma, Washington.

[4] Includes a $1.1 million pre-tax charge related to Retail store closures in the U.S., and a $3.9 million of pre-tax income related to the adjustment of a reserve associated with our legacy building materials manufacturing facility near Elma, Washington.

[5] Includes a $13.4 million pre-tax charge related to Retail store closures in the U.S., and a $0.8 million pre-tax charge for severance related to Contract reorganizations.