Annual report pursuant to Section 13 and 15(d)

SHAREHOLDERS' EQUITY (Basic and Diluted Net Income Per Share) (Details)

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SHAREHOLDERS' EQUITY (Basic and Diluted Net Income Per Share) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 12 Months Ended
Jan. 28, 2017
Oct. 29, 2016
Jul. 30, 2016
Apr. 30, 2016
Jan. 30, 2016
Oct. 31, 2015
Aug. 01, 2015
May 02, 2015
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Basic net income per share:                      
Net income $ 321.8 $ 171.6 $ 170.2 $ 232.7 $ 229.0 $ 81.9 $ (98.0) $ 69.5 $ 896.2 $ 282.4 $ 599.2
Weighted average number of shares outstanding (in shares)                 235.7 222.5 206.0
Basic net income per share (usd per share)                 $ 3.80 $ 1.27 $ 2.91
Diluted net income per share:                      
Net income $ 321.8 $ 171.6 $ 170.2 $ 232.7 $ 229.0 $ 81.9 $ (98.0) $ 69.5 $ 896.2 $ 282.4 $ 599.2
Weighted average number of shares outstanding (in shares)                 235.7 222.5 206.0
Dilutive effect of stock options and restricted stock (as determined by applying the treasury stock method) (in shares)                 1.1 1.0 1.0
Weighted average number of shares and dilutive potential shares outstanding (in shares)                 236.8 223.5 207.0
Diluted net income per share (usd per share) $ 1.36 $ 0.72 $ 0.72 $ 0.98 $ 0.97 $ 0.35 $ (0.46) $ 0.34 $ 3.78 $ 1.26 $ 2.90