Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Narrative) (Details)

v3.20.2
Financial Instruments (Narrative) (Details) - USD ($)
$ in Millions
Sep. 26, 2020
Dec. 28, 2019
Other Fair Value Disclosure [Line Items]    
Short-term investments $ 475 $ 37
Commercial paper    
Other Fair Value Disclosure [Line Items]    
Short-term investments 75 37
Commercial paper | Level 2    
Other Fair Value Disclosure [Line Items]    
Short-term investments 75 37
Mutual Fund | Level 1    
Other Fair Value Disclosure [Line Items]    
Other assets $ 42 $ 30