Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Stock Options) (Details)

v2.4.0.6
Stock-Based Compensation (Stock Options) (Details) (USD $)
In Millions, except Share data in Thousands, unless otherwise specified
0 Months Ended 12 Months Ended
Mar. 15, 2011
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Granted, Shares 2,400 2,523    
Granted, Weighted-Average Exercise Price Per Share $ 36.58 $ 36    
Grants of stock options - fair value per option $ 11.40 $ 11.37 $ 9.03 $ 6.29
Share-Based Compensation, Common Stock, Increase Upon Exercise of All Outstanding Options   6.80%    
Employee Stock Option [Member]
       
Unrecognized compensation expense   $ 23    
Weighted average period over which unrecognized compensation is expected to be recognized (years)   1