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 |