Fair Value Measurements - Summary of Changes in Estimated Fair Value of Contingent Consideration Liabilities (Details) - Contingent consideration liability [Member] - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Jan. 01, 2017 |
Jan. 03, 2016 |
|
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | |||
| Beginning balance | $ 4 | $ 35 | $ 44 |
| Cash payments | (3) | (35) | (3) |
| Additional liability recorded as a result of a current period acquisition | 5 | ||
| Ending balance | 0 | 4 | 35 |
| Selling, general and administrative expenses [Member] | |||
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | |||
| Change in estimated fair value, recorded in selling, general and administrative expenses | $ (1) | $ (1) | $ (6) |