Annual report pursuant to Section 13 and 15(d)

Debt and Other Obligations (Details) (Narrative)

v3.6.0.2
Debt and Other Obligations (Details) (Narrative)
12 Months Ended
Feb. 10, 2017
USD ($)
Dec. 31, 2016
USD ($)
day
$ / shares
shares
Dec. 26, 2015
USD ($)
Dec. 27, 2014
USD ($)
Dec. 30, 2016
$ / shares
Sep. 28, 2016
USD ($)
Sep. 14, 2016
USD ($)
Feb. 26, 2014
USD ($)
Debt Instrument [Line Items]                
Principal   $ 1,767,000,000            
Unamortized discount   $ (308,000,000) $ 0          
Remaining term   117 months            
Share price (USD per share) | $ / shares   $ 6.00     $ 11.34      
Converted instrument, shares issued (shares) | shares   125.0031            
Conversion price | $ / shares   $ 8.00            
Issuance of common stock to partially settle the 7.00% Notes   $ 8,000,000            
Gain (loss) on debt redemptions   (68,000,000) 0 $ (61,000,000)        
Long-term debt, net of discount   1,435,000,000 2,237,000,000          
Secured revolving line of credit, outstanding balance   0 230,000,000          
Capital lease obligations   $ 0 0          
Secured Revolving Line of Credit                
Debt Instrument [Line Items]                
Fixed charge coverage ratio   1.25            
Secured revolving line of credit, maximum borrowing capacity   $ 500,000,000            
Letters of credit, maximum borrowing capacity   $ 75,000,000            
Percentage of eligible accounts receivable   85.00%            
Fronting fee to agent   0.125%            
Excess cash availability requirement as a percentage of total commitment   20.00%            
Repayments of lines of credit   $ 230,000,000            
Letters of credit, outstanding balance   19,000,000            
Secured revolving line of credit, outstanding balance   0 $ 230,000,000          
Interest rate at end of period     4.00%          
Secured revolving line of credit, remaining borrowing capacity   $ 121,000,000            
Secured Revolving Line of Credit | Amended and restated loan and security agreement                
Debt Instrument [Line Items]                
Average availability for applicable margin   66.66%            
Fixed charge coverage ratio   1.00            
Secured revolving line of credit, maximum borrowing capacity   $ 500,000,000            
Letters of credit, maximum borrowing capacity   $ 75,000,000            
Percentage of eligible accounts receivable   90.00%            
Restrictions on Company's subsidiaries   $ 50,000,000            
Excess cash availability requirement as a percentage of total commitment   15.00%            
Excess cash availability requirement   $ 100,000,000            
Maximum amount of permitted liens   1,500,000,000            
Condition related to sufficient amount reserved   50,000,000            
Loan parties’ excess cash availability   75,000,000            
Limit on amount of default related to bankruptcy   50,000,000            
Limit on amount of default related to judgments   50,000,000            
Limit on amount of default related to a loss, theft damage or destruction not covered by insurance   50,000,000            
Maximum commitments   $ 200,000,000            
Secured Revolving Line of Credit | When less than 35% of the Secured Revolving Line of Credit utilized                
Debt Instrument [Line Items]                
Unused capacity, commitment fee percentage   0.375%            
Secured Revolving Line of Credit | When 35% or more of the Secured Revolving Line of Credit is utilized                
Debt Instrument [Line Items]                
Unused capacity, commitment fee percentage   0.25%            
Secured Revolving Line of Credit | Federal Funds | Amended and restated loan and security agreement                
Debt Instrument [Line Items]                
Basis spread on variable rate   0.50%            
Secured Revolving Line of Credit | LIBOR | Amended and restated loan and security agreement                
Debt Instrument [Line Items]                
Basis spread on variable rate, applicable margin   0.0125            
Basis spread on variable rate   1.00%            
Secured Revolving Line of Credit | Base Rate | Amended and restated loan and security agreement                
Debt Instrument [Line Items]                
Basis spread on variable rate, applicable margin   0.0025            
2.125% Convertible Senior Notes Due 2026                
Debt Instrument [Line Items]                
Principal   $ 805,000,000 $ 0          
Unamortized discount   $ (308,000,000)            
Principal amount, at time of issuance           $ 105,000,000 $ 700,000,000  
Interest rate, stated percentage   2.125%            
If-converted value in excess of principal   $ 336,000,000            
Long-term debt, net of discount   $ 483,000,000            
Effective interest rate   8.00%            
6.75% Senior Notes due 2019                
Debt Instrument [Line Items]                
Principal   $ 196,000,000 600,000,000          
Principal amount, at time of issuance               $ 600,000,000
Interest rate, stated percentage   6.75%            
Repurchase partial tender offer   $ 442,000,000            
Repurchased principal amount   $ 404,000,000            
Redemption price, percentage   101.00%            
Interest paid   $ 2,000,000            
Gain (loss) on debt redemptions   (41,000,000)            
7.75% Senior Notes Due 2020                
Debt Instrument [Line Items]                
Principal   0 450,000,000          
Principal amount, at time of issuance   $ 500,000,000            
Interest rate, stated percentage   7.75%            
Repurchased principal amount   $ 450,000,000   50,000,000        
Repayments of debt, including accrued interest   467,000,000   49,000,000        
Interest paid   5,000,000   1,000,000        
Gain (loss) on debt redemptions   (16,000,000)   2,000,000        
7.50% Senior Notes due 2022                
Debt Instrument [Line Items]                
Principal   350,000,000 475,000,000          
Principal amount, at time of issuance   $ 500,000,000            
Interest rate, stated percentage   7.50%            
Repurchase partial tender offer   $ 135,000,000            
Repurchased principal amount   $ 125,000,000   25,000,000        
Redemption price, percentage   101.00%            
Repayments of debt, including accrued interest       24,000,000        
Interest paid   $ 1,000,000            
Gain (loss) on debt redemptions   (10,000,000)   $ 1,000,000        
7.00% Senior Notes due 2024                
Debt Instrument [Line Items]                
Principal   416,000,000 $ 500,000,000          
Principal amount, at time of issuance   $ 500,000,000            
Interest rate, stated percentage   7.00%            
Redemption price, percentage   101.00%            
Extinguishment of debt   $ 84,000,000            
Repayments of debt   77,000,000            
Interest paid   1,000,000            
Issuance of common stock to partially settle the 7.00% Notes   8,000,000            
Gain (loss) on debt redemptions   $ (1,000,000)            
Debt Instrument, circumstance 1 | 7.00% Senior Notes due 2024                
Debt Instrument [Line Items]                
Percentage of principal redeemable   35.00%            
Debt Instrument, circumstance 2 | 7.00% Senior Notes due 2024                
Debt Instrument [Line Items]                
Percentage of principal redeemable   107.00%            
2.125% Convertible Senior Notes Due 2026 | Convertible Debt [Member]                
Debt Instrument [Line Items]                
Debt issuance cost, net   $ 15,000,000            
Payments of stock issuance cost   $ 9,000,000            
2.125% Convertible Senior Notes Due 2026 | Debt Instrument, circumstance 1 | Convertible Debt [Member]                
Debt Instrument [Line Items]                
Convertible, threshold trading days | day   20            
Threshold consecutive trading days   30 days            
Threshold percentage of stock price trigger   130.00%            
2.125% Convertible Senior Notes Due 2026 | Debt Instrument, circumstance 2 | Convertible Debt [Member]                
Debt Instrument [Line Items]                
Threshold consecutive trading days   10 days            
Threshold percentage of stock price trigger   98.00%            
Conversion period after threshold period days | day   5            
Treasury Stock                
Debt Instrument [Line Items]                
Issuance of common stock to partially settle the 7.00% Notes   $ 8,000,000            
Subsequent Event | 6.75% Senior Notes due 2019                
Debt Instrument [Line Items]                
Extinguishment of debt $ 5,000,000              
Subsequent Event | 7.50% Senior Notes due 2022                
Debt Instrument [Line Items]                
Extinguishment of debt 3,000,000              
Subsequent Event | 7.00% Senior Notes due 2024                
Debt Instrument [Line Items]                
Extinguishment of debt $ 26,000,000