Share-Based Compensation (Restricted Stock Units Assumptions) (Details) - Relationship to Entity [Domain] - Market-based restricted stock units [Member]	6 Months Ended
	Aug. 01, 2015 $ / shares	Aug. 02, 2014 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date market price (in dollars per share)	$ 22.46	$ 38.50
Fair value (in dollars per share)	$ 19.04	$ 46.86
Price volatility	45.00%	50.00%
Expected term (years)	2 years 9 months 18 days	2 years 9 months 18 days
Risk-free interest rate	0.90%	0.80%
Dividend yield	3.50%	2.10%
Average volatility of peer companies	34.00%	37.30%
Average correlation coefficient of peer companies	0.3288	0.3786