Quarterly report pursuant to Section 13 or 15(d)

Borrowings Borrowings, Narrative (Details)

v3.19.3
Borrowings Borrowings, Narrative (Details) - USD ($)
9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Convertible debentures | 2039 convertible debentures    
Debt Instrument [Line Items]    
Debt instrument, face amount $ 590,000,000 $ 793,000,000
Cumulative loss on convertible debentures 148,000,000 $ 211,000,000
Unsecured general obligations | Arizona and Oregon bonds    
Debt Instrument [Line Items]    
Debt instrument, face amount $ 648,000,000  
Interest rate 5.00%  
Unsecured general obligations | Remarked Arizona and Oregon bonds    
Debt Instrument [Line Items]    
Debt instrument, face amount $ 423,000,000  
Unsecured general obligations | Remarked Arizona and Oregon bonds | Minimum    
Debt Instrument [Line Items]    
Interest rate 2.40%  
Unsecured general obligations | Remarked Arizona and Oregon bonds | Maximum    
Debt Instrument [Line Items]    
Interest rate 2.70%