Restructuring and Other Charges (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended			12 Months Ended
		Jul. 30, 2017	Jul. 31, 2016	Jul. 30, 2017		Jul. 31, 2016	Jan. 29, 2017
Restructuring and Other Charges [Abstract]
Balance at beginning of period				$ 13	[1]	$ 23	$ 23
Restructuring and other charges		$ 0	$ 2	0		$ 3	3
Cash payments				(3)			(13)
Balance at end of period	[1]	$ 10		$ 10			$ 13

[1] Please refer to Note 15 of these Notes to Condensed Consolidated Financial Statements for a discussion regarding restructuring and other charges.