BASIS OF PRESENTATION and ACCOUNTING POLICIES DISAGGREGATED REVENUES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 27, 2019	Apr. 28, 2018	Apr. 27, 2019	Apr. 28, 2018
Disaggregation of Revenue [Line Items]
Percentage of Total Sales	100.00%	100.00%	100.00%	100.00%
Revenues	$ 395,458	$ 395,437	$ 1,225,137	$ 1,201,045
Center Store [Member]
Disaggregation of Revenue [Line Items]
Percentage of Total Sales	61.40%	62.10%	62.10%	62.40%
Revenues	$ 242,958	$ 245,576	$ 760,080	$ 749,546
Fresh
Disaggregation of Revenue [Line Items]
Percentage of Total Sales	33.90%	33.30%	33.40%	33.00%
Revenues	$ 134,005	$ 131,587	$ 409,685	$ 395,794
Pharmacy
Disaggregation of Revenue [Line Items]
Percentage of Total Sales	4.40%	4.40%	4.20%	4.40%
Revenues	$ 17,287	$ 17,398	$ 51,983	$ 52,859
Other Product
Disaggregation of Revenue [Line Items]
Percentage of Total Sales	0.30%	0.20%	0.30%	0.20%
Revenues	$ 1,208	$ 876	$ 3,389	$ 2,846