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Share-Based Compensation - Weighted-Average Assumptions Used for Grants of Stock Options and SARs (Detail) - SARs - USD ($)
$ / shares in Units, $ in Millions
6 Months Ended
Jul. 01, 2017
Jul. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected dividend yield 0.00% 0.00%
Forfeiture rate 9.37% 9.01%
Volatility 35.49% 43.14%
Risk free interest rate 1.77% 1.29%
Risk free interest rate, minimum 0.71% 0.25%
Risk free interest rate, maximum 2.41% 1.75%
Expected weighted-average life 4 years 1 month 16 days 5 years 3 months 28 days
Fair value of SARs granted (in millions) $ 12 $ 12
Weighted-average grant date fair value of SARs granted (per underlying share) (USD per share) $ 29.84 $ 19.95