Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Numerator:
Net income	$ 100	$ 114	$ 126	$ 67	$ 256	$ 96	$ 65	$ 27	$ 407	$ 444	$ 210
Denominator:
Weighted-average common shares outstanding (in shares)									216,112,021	222,383,038	200,129,868
Dilutive effect of share-based awards (in shares)									1,713,524	3,280,747	3,894,858
Weighted-average dilutive shares outstanding (in shares)									217,825,545	225,663,785	204,024,726
Basic earnings per share (in USD per share)	$ 0.46	$ 0.53	$ 0.58	$ 0.31	$ 1.16	$ 0.43	$ 0.29	$ 0.12	$ 1.88	$ 2.00	$ 1.05
Diluted earnings per share (in USD per share)	$ 0.46	$ 0.52	$ 0.58	$ 0.31	$ 1.15	$ 0.42	$ 0.29	$ 0.12	$ 1.87	$ 1.97	$ 1.03