Earnings Per Share - Computation of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Basic:
Net income	$ 124	$ 70	$ 239	$ 179
Weighted-average shares outstanding (in shares)	54,027,576	53,537,876	53,965,181	53,414,267
Basic earnings per share (USD per share)	$ 2.28	$ 1.31	$ 4.43	$ 3.35
Diluted:
Net income	$ 124	$ 70	$ 239	$ 179
Weighted-average shares outstanding (in shares)	54,027,576	53,537,876	53,965,181	53,414,267
Dilutive shares (in shares)	621,123	717,831	637,191	719,843
Diluted weighted-average shares outstanding (in shares)	54,648,699	54,255,707	54,602,372	54,134,110
Diluted earnings per share (USD per share)	$ 2.26	$ 1.29	$ 4.37	$ 3.30