Quarterly report pursuant to Section 13 or 15(d)

Debt and Secured Revolving Line of Credit (Convertible Debt) (Details)

v3.19.1
Debt and Secured Revolving Line of Credit (Convertible Debt) (Details) - 2.125% Convertible Senior Notes due 2026 - USD ($)
Mar. 30, 2019
Dec. 29, 2018
Sep. 30, 2016
Debt Instrument [Line Items]      
Principal $ 805,000,000 $ 805,000,000 $ 805,000,000
Unamortized debt discount (256,000,000) (262,000,000)  
Unamortized debt issuance costs (10,000,000) (11,000,000)  
Net carrying amount 539,000,000 532,000,000  
Carrying amount of the equity component, net 305,000,000 305,000,000  
Equity issuance costs $ 9,000,000 $ 9,000,000