Annual report pursuant to Section 13 and 15(d)

Debt and Other Obligations (Details) (Summary of Debt and Other Obligations)

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Debt and Other Obligations (Details) (Summary of Debt and Other Obligations) - USD ($)
$ in Millions
Dec. 26, 2015
Dec. 27, 2014
Debt Instrument [Line Items]    
6.75% Notes, interest rate swap $ 7 $ 3
Capital lease obligations 0 12
Long-term debt and capital lease obligation including current portion 2,262 2,212
Current portion of long-term debt and capital lease obligations 230 177
Long-term debt and capital lease obligations, less current portion 2,032 2,035
6.00% Convertible Senior Notes Due 2015    
Debt Instrument [Line Items]    
Long-term debt, net of discount 0 42
6.75% Senior Notes due 2019    
Debt Instrument [Line Items]    
Long-term debt, net of discount 600 600
7.75% Senior Notes Due 2020    
Debt Instrument [Line Items]    
Long-term debt, net of discount 450 450
7.50% Senior Notes due 2022    
Debt Instrument [Line Items]    
Long-term debt, net of discount 475 475
7.00% Senior Notes due 2024    
Debt Instrument [Line Items]    
Long-term debt, net of discount 500 500
Secured Revolving Line of Credit    
Debt Instrument [Line Items]    
Secured revolving line of credit, outstanding balance $ 230 $ 130