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Business and Summary of Significant Accounting Policies - Insurance - Additional Information (Details) - USD ($)
$ in Millions
Dec. 28, 2019
Dec. 29, 2018
Self-Insurance Liability $ 9 $ 8
Compensation and Benefits    
Self-Insurance Liability, Current 6 5
Other Non-current Liabilities    
Self-Insurance Liability, Noncurrent $ 3 $ 3