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 12 Months Ended
Apr. 28, 2012
Apr. 30, 2011
Jan. 28, 2012
SHAREHOLDERS' EQUITY [Abstract]      
Net income $ 116.1 $ 101.0  
Number of shares repurchased (in shares) 0.1    
Amount of shares repurchased 4.5    
Remaining amount of shares authorized to repurchase 1,200.0    
Accelerated Share Repurchases [Line Items]      
Accelerated share repurchase program, authorized amount     300.0
Shares received under the collar agreement (in shares)     3.4
Additional number of shares received 0.2    
Accelerated share repurchase agreement total number of shares repurchased 3.6    
Share Repurchase Programs [Abstract]      
Number of shares repurchased (in shares) 0.1    
Amount of shares repurchased 4.5    
Remaining amount of shares authorized to repurchase $ 1,200.0