Segment Information (Sales and Division Operating Results for Reportable Segments) (Details) - USD ($) $ in Millions		3 Months Ended
		Apr. 29, 2017	Apr. 30, 2016
Segment Reporting Information [Line Items]
Sales		$ 2,001	$ 1,987
Division profit		283	315
Less: Corporate expense		15	19
Income from operations		268	296
Interest expense, net
Other income	[1]	1	2
Income before income taxes		269	298
Athletic Stores [Member]
Segment Reporting Information [Line Items]
Sales		1,722	1,735
Operating results before restructuring income		241	277
Direct-to-Customers [Member]
Segment Reporting Information [Line Items]
Sales		279	252
Operating results before restructuring income		$ 42	$ 38

[1] Other income includes non-operating items, such as lease termination gains, royalty income, insurance recoveries, and the changes in fair value, premiums paid, and realized gains associated with foreign currency option contracts.