Quarterly report pursuant to Section 13 or 15(d)

Debt and Revolving Facility - Narrative (Details)

v3.20.2
Debt and Revolving Facility - Narrative (Details)
$ / shares in Units, shares in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Jul. 06, 2020
USD ($)
Apr. 06, 2020
USD ($)
Jun. 07, 2019
USD ($)
Sep. 30, 2016
USD ($)
day
$ / shares
Sep. 26, 2020
USD ($)
$ / shares
shares
Sep. 26, 2020
USD ($)
$ / shares
shares
Sep. 28, 2019
USD ($)
Dec. 28, 2019
USD ($)
Aug. 15, 2012
USD ($)
Debt Instrument [Line Items]                  
Loss on debt redemption, repurchase and conversion           $ 38,000,000 $ 48,000,000    
Total debt (principal amount)         $ 398,000,000 398,000,000   $ 563,000,000  
Proceeds from short-term debt borrowings           200,000,000 0    
Repayment and extinguishment of debt           $ 200,000,000 $ 331,000,000    
2.125% Convertible Senior Notes due 2026 | Convertible Debt                  
Debt Instrument [Line Items]                  
Stated interest rate       2.125% 2.125% 2.125%   2.125%  
Principal amount       $ 805,000,000 $ 86,000,000 $ 86,000,000      
Threshold trading days | day       20          
Threshold consecutive trading days | day       30          
Threshold percentage of conversion price       130.00%          
Conversion price (in usd per share) | $ / shares       $ 8.00 $ 8.00 $ 8.00      
Principal amount of notes converted         $ 165,000,000 $ 165,000,000      
Issuance of common stock to settle convertible debt (in shares) | shares         20,000 20,000      
Effective interest rate         8.00% 8.00%      
Carrying amount of the equity component, net         $ 33,000,000 $ 33,000,000   $ 95,000,000  
Total debt (principal amount)         $ 86,000,000 $ 86,000,000   251,000,000  
7.50% Senior Notes due 2022 | Senior Notes                  
Debt Instrument [Line Items]                  
Stated interest rate         7.50% 7.50%     7.50%
Principal amount                 $ 500,000,000
Total debt (principal amount)         $ 312,000,000 $ 312,000,000   $ 312,000,000  
Revolving Credit Facility | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Letters of credit outstanding, amount         $ 13,000,000 $ 13,000,000      
Effective interest rate   2.37%              
Maximum borrowing capacity     $ 500,000,000            
Debt instrument, term     5 years            
Available borrowings reduction threshold     $ 250,000,000            
Proceeds from short-term debt borrowings   $ 200,000,000              
Repayment and extinguishment of debt $ 200,000,000                
Revolving Credit Facility | Swingline Subfacility                  
Debt Instrument [Line Items]                  
Maximum borrowing capacity     50,000,000            
Revolving Credit Facility | Letter of Credit                  
Debt Instrument [Line Items]                  
Maximum borrowing capacity     $ 75,000,000