Annual report pursuant to Section 13 and 15(d)

Debt and Revolving Credit Facility - Narrative (Details)

v3.20.4
Debt and Revolving Credit Facility - Narrative (Details)
$ / shares in Units, shares in Millions
12 Months Ended
Jul. 06, 2020
USD ($)
Apr. 06, 2020
USD ($)
Sep. 14, 2016
day
$ / shares
Aug. 15, 2012
USD ($)
Dec. 26, 2020
USD ($)
$ / shares
shares
Dec. 28, 2019
USD ($)
Dec. 29, 2018
USD ($)
Jun. 07, 2019
USD ($)
Sep. 30, 2016
USD ($)
$ / shares
Debt Instrument [Line Items]                  
Total         $ 338,000,000 $ 563,000,000      
Conversion price (USD per share) | $ / shares     $ 8.00            
Loss on debt redemption, repurchase and conversion         54,000,000 176,000,000 $ 12,000,000    
Repayments and extinguishment of debt         $ 200,000,000 473,000,000 $ 41,000,000    
7.50% Senior Notes Due 2022 (7.50% Notes)                  
Debt Instrument [Line Items]                  
Interest rate, stated percentage       7.50% 7.50%        
Aggregate principal amount       $ 500,000,000          
Debt Instrument, circumstance 1 | 7.50% Senior Notes Due 2022 (7.50% Notes)                  
Debt Instrument [Line Items]                  
Redemption price, percentage         100.00%        
Debt Instrument, circumstance 2 | 7.50% Senior Notes Due 2022 (7.50% Notes)                  
Debt Instrument [Line Items]                  
Redemption price, percentage       101.00%          
2.125% Convertible Senior Notes Due 2026 (2.125% Notes) | Convertible Debt                  
Debt Instrument [Line Items]                  
Interest rate, stated percentage         2.125%       2.125%
Aggregate principal amount                 $ 805,000,000
Total         $ 26,000,000 251,000,000      
Conversion price (USD per share) | $ / shares         $ 8.00       $ 8.00
Debt conversion, converted instrument, amount         $ 225,000,000        
Issuance of common stock to partially settle convertible debt (in shares) | shares         28        
Debt instrument, convertible, stock price trigger (USD per share) | $ / shares         $ 91.81        
If-converted value in excess of principal         $ 272,000,000        
Effective interest rate         8.00%        
Carrying amount of the equity component, net         $ 10,000,000 $ 95,000,000      
2.125% Convertible Senior Notes Due 2026 (2.125% Notes) | Debt Instrument, circumstance 1 | Convertible Debt                  
Debt Instrument [Line Items]                  
Convertible, threshold trading days | day     20            
Threshold consecutive trading days | day     30            
Threshold percentage of stock price trigger     130.00%            
2.125% Convertible Senior Notes Due 2026 (2.125% Notes) | Debt Instrument, circumstance 2 | Convertible Debt                  
Debt Instrument [Line Items]                  
Threshold consecutive trading days | day     10            
Threshold percentage of stock price trigger     98.00%            
Conversion period after threshold period days | day     5            
Secured Revolving Line of Credit | Secured Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Secured revolving line of credit, maximum borrowing capacity               $ 500,000,000  
Secured Revolving Line of Credit | Secured Revolving Line of Credit                  
Debt Instrument [Line Items]                  
Effective interest rate   2.37%              
Repayments and extinguishment of debt $ 200,000,000                
Letters of credit, outstanding balance         $ 13,000,000        
Proceeds from Lines of Credit   $ 200,000,000              
Swingline Subfacility | Secured Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Secured revolving line of credit, maximum borrowing capacity               50,000,000  
Letter of Credit | Secured Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Secured revolving line of credit, maximum borrowing capacity               $ 75,000,000