Annual report pursuant to Section 13 and 15(d)

Debt and Other Obligations (Details) (Information related to Interest Rate and Expense)

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Debt and Other Obligations (Details) (Information related to Interest Rate and Expense) (6.00% Convertible Senior Notes Due 2015, USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Dec. 25, 2010
6.00% Convertible Senior Notes Due 2015
     
Debt Instrument [Line Items]      
Effective interest rate 8.00% 8.00% 8.00%
Interest cost related to contractual interest coupon $ 44 $ 45 $ 93
Interest cost related to amortization of the discount $ 9 $ 11 $ 20