Segments Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Oct. 28, 2017	Jan. 28, 2017	Oct. 29, 2016
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 14,785	$ 13,856	$ 14,542
Domestic Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	13,140	12,496	13,115
International Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 1,645	$ 1,360	$ 1,427