Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION PLAN (Fair Value of Employee's Purchase Rights) (Details)

v3.7.0.1
STOCK-BASED COMPENSATION PLAN (Fair Value of Employee's Purchase Rights) (Details) - $ / shares
12 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Jan. 28, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected term in years       3 months 3 months 3 months
Expected volatility 14.60% 13.20% 8.80%      
Annual dividend yield 0.00% 0.00% 0.00%      
Risk free interest rate 0.40% 0.20% 0.00%      
Employee Stock Option [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected term in years 6 years 6 months 2 years 11 days        
Expected volatility 24.51% 20.77%        
Annual dividend yield 0.00% 0.00%        
Risk free interest rate 2.09% 0.60%        
Weighted-average fair value of options granted during the period $ 22.10 $ 23.15