v3.8.0.1
Share-based Compensation Expense - Summary of Share-based Compensation Expense for all Stock Awards (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Jan. 01, 2017
Jan. 03, 2016
Share-based Compensation      
Share-based compensation expense before taxes $ 164 $ 129 $ 133
Related income tax benefits (48) (41) (39)
Share-based compensation expense, net of taxes 116 88 94
Cost of product revenue [Member]      
Share-based Compensation      
Share-based compensation expense before taxes 12 9 10
Cost of service and other revenue [Member]      
Share-based Compensation      
Share-based compensation expense before taxes 2 2 2
Research and development [Member]      
Share-based Compensation      
Share-based compensation expense before taxes 51 42 42
Selling, general and administrative [Member]      
Share-based Compensation      
Share-based compensation expense before taxes $ 99 $ 76 $ 79