Loss per Share - Computation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Weighted average shares:
Basic weighted average shares outstanding (in shares)	51,533,236	50,917,161	51,405,373	50,798,238
Effect of dilutive securities outstanding (in shares)	0	0	0	0
Diluted weighted average and equivalent shares outstanding (in shares)	51,533,236	50,917,161	51,405,373	50,798,238
Net loss	$ (49)	$ (77)	$ (78)	$ (102)
Basic per share amounts:
Basic weighted average shares outstanding (in shares)	51,533,236	50,917,161	51,405,373	50,798,238
Per share amount (in USD per share)	$ (0.95)	$ (1.50)	$ (1.51)	$ (2.00)
Diluted per share amounts:
Diluted weighted average and equivalent shares outstanding (in shares)	51,533,236	50,917,161	51,405,373	50,798,238
Per share amount (in USD per share)	$ (0.95)	$ (1.50)	$ (1.51)	$ (2.00)