Earnings (Loss) Per Share - Computation (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Basic:
Net income (loss)									$ 17	$ (137)	$ (158)
Weighted-average shares outstanding									53,021,761	51,579,112	50,996,297
Basic earnings (loss) per share (in USD per share)	$ 0.07	$ (0.23)	$ 0.33	$ 0.16	$ 0.34	$ (1.61)	$ (0.88)	$ (0.50)	$ 0.33	$ (2.65)	$ (3.10)
Diluted:
Net income (loss)									$ 17	$ (137)	$ (158)
Weighted-average shares outstanding									53,021,761	51,579,112	50,996,297
Dilutive shares									667,071	0	0
Diluted weighted average shares outstanding (in shares)									53,688,832	51,579,112	50,996,297
Diluted earnings (loss) per share (in USD per share)	$ 0.07	$ (0.23)	$ 0.32	$ 0.16	$ 0.34	$ (1.61)	$ (0.88)	$ (0.50)	$ 0.32	$ (2.65)	$ (3.10)