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Share-Based Compensation (Stock Appreciation Rights Assumptions) (Details) - Stock Appreciation Rights - $ / shares
9 Months Ended
Oct. 31, 2015
Nov. 01, 2014
The weighted-average fair value and assumptions (stock appreciation rights)    
Fair value (in dollars per share) $ 21.90  
Executive Officers    
The weighted-average fair value and assumptions (stock appreciation rights)    
Grant date market price (in dollars per share) 22.46 $ 37.85
Exercise price (in dollars per share) 22.46 38.44
Fair value (in dollars per share) $ 9.11 $ 14.04
Assumptions:    
Price volatility 49.00% 50.00%
Expected term (years) 6 years 1 month 4 years 11 months
Risk-free interest rate 1.50% 1.60%
Dividend yield 1.70% 2.00%
All Other Associates    
The weighted-average fair value and assumptions (stock appreciation rights)    
Grant date market price (in dollars per share) $ 21.99 $ 38.58
Exercise price (in dollars per share) 21.99 38.79
Fair value (in dollars per share) $ 7.84 $ 13.56
Assumptions:    
Price volatility 49.00% 50.00%
Expected term (years) 4 years 5 months 4 years 1 month
Risk-free interest rate 1.30% 1.40%
Dividend yield 1.70% 1.90%