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DEBT - 5.75% Senior Unsecured Notes due 2024 (Details) - Unsecured debt - HDS (Debt Issuer)
3 Months Ended
Apr. 30, 2017
Jan. 29, 2017
5.25% April 2016 Senior Unsecured Notes due 2024    
DEBT    
Note issued, interest rate 5.25%  
5.75% April 2016 Senior Unsecured Notes due 2024    
DEBT    
Note issued, interest rate 5.75% 5.75%
Prior to April 15, 2019 | 5.75% April 2016 Senior Unsecured Notes due 2024    
DEBT    
Optional prepayment price percentage 100.00%  
Percentage limit on amount that can be redeemed 40.00%  
Prepayment percentage price as a percent of the principal, with proceeds from certain equity offerings 105.75%  
Threshold percentage for debt that must remain after each redemption 50.00%  
2019 | 5.75% April 2016 Senior Unsecured Notes due 2024    
DEBT    
Optional prepayment price percentage 104.313%  
2020 | 5.75% April 2016 Senior Unsecured Notes due 2024    
DEBT    
Optional prepayment price percentage 102.875%  
2021 | 5.75% April 2016 Senior Unsecured Notes due 2024    
DEBT    
Optional prepayment price percentage 101.438%  
2022 and thereafter | 5.75% April 2016 Senior Unsecured Notes due 2024    
DEBT    
Optional prepayment price percentage 100.00%