Segment and Geographic Information - Geographic Information (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Jan. 30, 2016	Oct. 31, 2015	Aug. 01, 2015	May 02, 2015	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Geographic Areas, Revenues from External Customers [Abstract]
Total revenue	$ 13,482	$ 8,945	$ 8,533	$ 8,443	$ 13,623	$ 8,819	$ 8,528	$ 8,558	$ 39,403	$ 39,528	$ 40,339
Geographic Areas, Long-Lived Assets [Abstract]
Property, Plant and Equipment, Net	2,293				2,346				2,293	2,346	2,295
United States [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Total revenue									36,248	36,365	36,055
Geographic Areas, Long-Lived Assets [Abstract]
Property, Plant and Equipment, Net	2,120				2,189				2,120	2,189	2,100
Canada [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Total revenue									2,899	2,917	4,047
Geographic Areas, Long-Lived Assets [Abstract]
Property, Plant and Equipment, Net	156				140				156	140	174
Other [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Total revenue									256	246	237
Geographic Areas, Long-Lived Assets [Abstract]
Property, Plant and Equipment, Net	$ 17				$ 17				$ 17	$ 17	$ 21