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Earnings Per Common Share (Details Textuals)
In Millions
3 Months Ended 6 Months Ended
Jul. 31, 2011
Aug. 01, 2010
Jul. 31, 2011
Aug. 01, 2010
Earnings Per Common Share (Textuals) [Abstract]        
Antidilutive securities excluded from computation of dilutive earning per share 2.7 2.6 2.3 2.8