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SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Jan. 28, 2017
Jan. 30, 2016
Significant Accounting Policies        
Total outbound shipping and handling costs $ 129.0 $ 112.8 $ 255.9 $ 227.4