Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details) (Narratives)

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Income Taxes (Details) (Narratives) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 27, 2015
Jun. 28, 2014
Jun. 27, 2015
Jun. 28, 2014
Income Taxes        
Provision (benefit) for income taxes $ 1 $ 4 $ 4 $ 6
Gross unrecognized tax benefits $ 29   $ 29  
Foreign taxes in profitable locations        
Income Taxes        
Provision (benefit) for income taxes   5   8
Other Comprehensive Income and Tax Credits        
Income Taxes        
Provision (benefit) for income taxes   $ (1)   $ (2)