Net Income Per Share - Computation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	May 04, 2019	May 05, 2018
Earnings Per Share [Abstract]
Numerator—Net income	$ 62	$ 75
Denominator—Weighted average shares: Basic	161	165
Dilutive impact	1	2
Weighted average shares, Diluted	162	167
Basic	$ 0.38	$ 0.46
Diluted	$ 0.38	$ 0.45