Net Income Per Share - Basic and Diluted Net Income Per Share Calculation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	May 05, 2018	Apr. 29, 2017
Net Income Per Section [Abstract]
Numerator—Net income	$ 75	$ 66	[1]
Denominator—Weighted average shares: Basic	165	170
Denominator—Weighted average shares: Impact of dilutive stock-based awards	2	1
Denominator—Weighted average shares: Diluted	167	171
Antidilutive shares		3
Net income per share: Basic	$ 0.46	$ 0.39	[1]
Net income per share: Diluted	$ 0.45	$ 0.39	[1]

[1] Refer to Note 2 for details on the adoption of the new revenue recognition accounting standard and the impact on previously reported results.