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SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Thousands
3 Months Ended
Oct. 27, 2018
Oct. 28, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Total outbound shipping and handling costs $ 174,000 $ 138,000
Decrease in cash used in operating activities 2,849,530 50,680
Increase in cash provided by financing activities (107,020) $ (40,157)
Book overdrafts [Member]    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Decrease in cash used in operating activities 31,900  
Increase in cash provided by financing activities 31,900  
SUPERVALU [Member]    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Total outbound shipping and handling costs $ 14,300