Quarterly report pursuant to Section 13 or 15(d)

SHAREHOLDERS' EQUITY (Details)

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SHAREHOLDERS' EQUITY (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended
Oct. 27, 2012
Oct. 29, 2011
Oct. 27, 2012
Oct. 29, 2011
Jan. 28, 2012
SHAREHOLDERS' EQUITY [Abstract]          
Net income $ 155.4 $ 104.5 $ 390.7 $ 300.4  
Number of shares repurchased (in shares) 3.3   5.0    
Amount of shares repurchased 149.8   235.3    
Remaining amount of shares authorized to repurchase 964.7   964.7    
Accelerated Share Repurchases [Line Items]          
Accelerated share repurchase program, authorized amount         300.0
Shares received under the collar agreement (in shares)         6.8
Additional number of shares received     0.5    
Accelerated share repurchase agreement total number of shares repurchased     7.3    
Share Repurchase Programs [Abstract]          
Number of shares repurchased (in shares) 3.3   5.0    
Amount of shares repurchased 149.8   235.3    
Remaining amount of shares authorized to repurchase $ 964.7   $ 964.7