Quarterly report pursuant to Section 13 or 15(d)

NET INCOME (LOSS) PER SHARE Schedule of Earnings per share, basic and diluted (table details) (Details)

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NET INCOME (LOSS) PER SHARE Schedule of Earnings per share, basic and diluted (table details) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Aug. 01, 2015
Aug. 02, 2014
Aug. 01, 2015
Aug. 02, 2014
Earnings Per Share [Abstract]        
Net income (loss) $ (98.0) $ 121.5 $ (28.5) $ 259.7
Weighted Average Number of Shares Outstanding (shares) 214.3 205.8 210.3 206.3
Basic net income per share (usd per share) $ (0.46) $ 0.59 $ (0.14) $ 1.26
Incremental Common Shares Attributable to Share-based Payment Arrangements 0.0 0.8 0.0 0.9
Weighted average number of shares and dilutive potential shares outstanding (shares) 214.3 206.6 210.3 207.2
Diluted net income per share (usd per share) $ (0.46) $ 0.59 $ (0.14) $ 1.25