PUBLIC OFFERINGS - Secondary Offering (Details) - Common stock - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Jul. 28, 2015	Feb. 02, 2014
Secondary Offering
Shares issued (in shares)		61,170,000
Secondary offerings, stock sold by shareholders
Secondary Offering
Shares issued (in shares)	0
Secondary offerings, stock sold by shareholders | July Selling Stockholders
Secondary Offering
Stock sold by shareholders (in shares)	30,539,550
Price per share (in dollars per share)	$ 35.44
Secondary offerings, stock sold by shareholders | July Selling Stockholders | Other income (expense)
Secondary Offering
Stock offering expenses	$ 1