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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 25, 2015
Sep. 26, 2014
Sep. 25, 2015
Sep. 26, 2014
Income Tax Disclosure [Abstract]        
Effective income tax rate 31.00% 28.00% 27.00% 29.00%
Deferred tax benefit undistributed foreign earnings     $ 7  
Non-recurring income tax benefit     $ 2