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SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Apr. 29, 2017
Apr. 30, 2016
Apr. 29, 2017
Apr. 30, 2016
Significant Accounting Policies        
Total outbound shipping and handling costs $ 129.2 $ 111.9 $ 385.1 $ 339.3