Share-based Compensation (Weighted-Average Assumptions) (Details)	12 Months Ended
Jan. 28, 2012 Y	Jan. 29, 2011 Y	Jan. 30, 2010 Y
Share-based Compensation [Abstract]
Expected Volatility	48.00%	49.00%	45.00%
Risk-free Interest Rate	1.90%	2.30%	1.40%
Dividend Yield	4.10%	3.30%	6.80%
Expected Life (in years)	5.0	4.5	3.8

The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

+ References+ Details

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References+ Details