Segments Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Jul. 29, 2017	Jan. 28, 2017	Jul. 30, 2016
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 13,444	$ 13,856	$ 13,254
Domestic Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	11,972	12,496	11,968
International Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 1,472	$ 1,360	$ 1,286