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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 24, 2016
Jun. 30, 2017
Jun. 24, 2016
Dec. 31, 2016
Income Taxes [Abstract]          
Effective tax rate 24.20% 26.00% 23.30% 24.10%  
Anticipated decrease in unrecognized tax benefits over the next 12 months $ 9   $ 9    
Accrued potential interest included within current and non-current income taxes payable 12   12   $ 11
Accrued potential interest included within current and non-current income taxes payable, after income taxes 7   7   7
Potential penalties $ 8   $ 8   $ 8