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Consolidated Statements of Shareholders' Investment (Unaudited) (Parenthetical) (USD $)
6 Months Ended 12 Months Ended
Aug. 02, 2014
Aug. 03, 2013
Feb. 01, 2014
Statement of Stockholders' Equity [Abstract]      
Dividends declared per share (in dollars per share) $ 0.95 $ 0.79 $ 1.65