Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Narrative) (Details)

v3.20.2
Financial Instruments (Narrative) (Details) - USD ($)
$ in Millions
Jun. 27, 2020
Dec. 28, 2019
Mutual Fund | Level 1    
Other Fair Value Disclosure [Line Items]    
Other assets $ 36 $ 30