Parentheticals - $ / shares	Aug. 01, 2015	Jan. 31, 2015
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.0006	$ 0.0006
Common stock, shares authorized	2,100,000,000	2,100,000,000
Common stock, shares issued	944,769,441	941,561,541
Common stock, shares outstanding	643,528,252	640,320,252
Treasury Stock, shares	301,241,189	301,241,189