Earnings (Loss) Per Share (EPS) (Shares Repurchase Program) (Details) - USD ($) shares in Millions	3 Months Ended			6 Months Ended		12 Months Ended
	Jul. 03, 2015	Aug. 01, 2014	May. 02, 2014	Jul. 03, 2015	Aug. 01, 2014	Jan. 31, 2014
Accelerated Share Repurchases [Line Items]
Repurchases of stock				$ 115,000,000	$ 212,000,000
Accelerated Share Repurchase
Accelerated Share Repurchases [Line Items]
Repurchases of stock						$ 300,000,000
Shares repurchased and retired			1.0			5.6
Second Accelerated Share Repurchase
Accelerated Share Repurchases [Line Items]
Repurchases of stock			$ 200,000,000
Shares repurchased and retired		0.8	4.5
Third Accelerated Share Repurchase [Member]
Accelerated Share Repurchases [Line Items]
Repurchases of stock	$ 100,000,000
Shares repurchased and retired	2.4