Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Incentive Compensation Plans (Details) (Share-based Compensation, Allocation of Recognized Period Costs)

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Stock-Based Incentive Compensation Plans (Details) (Share-based Compensation, Allocation of Recognized Period Costs) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 27, 2015
Jun. 28, 2014
Jun. 27, 2015
Jun. 28, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 17 $ 21 $ 34 $ 44
Cost of Sales        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense 1 1 2 2
Research and Development        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense 10 11 20 23
Marketing, General and Administrative        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 6 $ 9 $ 12 $ 19