Long-Term Debt (Details) (USD $) In Thousands, unless otherwise specified	Jun. 24, 2012	Dec. 25, 2011	Jan. 26, 2010
Debt Instrument [Line Items]
Face Value	$ 1,563,994
Long-term debt	1,513,901	1,577,476
11.50% senior secured notes due in 2017 [Member]
Debt Instrument [Line Items]
Face Value	846,000
Long-term debt	839,404	843,652
4.625% notes due in 2014 [Member]
Debt Instrument [Line Items]
Face Value	66,438
Long-term debt	63,726	77,406
5.750% notes due in 2017 [Member]
Debt Instrument [Line Items]
Face Value	286,138		875,000
Long-term debt	272,167	318,624
7.150% debentures due in 2027 [Member]
Debt Instrument [Line Items]
Face Value	89,188
Long-term debt	83,087	82,891
6.875% debentures due in 2029 [Member]
Debt Instrument [Line Items]
Face Value	276,230
Long-term debt	$ 255,517	$ 254,903