BUSINESS SEGMENT INFORMATION - PRODUCT MIX (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jun. 30, 2018	Jul. 01, 2017	Jul. 02, 2016
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 15,315,906	$ 14,349,504	$ 14,411,490	$ 14,650,424	$ 14,421,045	$ 13,524,172	$ 13,457,268	$ 13,968,654	$ 58,727,324	$ 55,371,139	$ 50,366,919
Fresh and frozen meats
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									11,312,969	10,605,678	10,273,247
Canned and dry products
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									9,768,206	8,695,829	8,402,230
Frozen fruits, vegetables, bakery and other
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									9,025,762	8,444,260	6,719,648
Dairy products
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									6,037,409	5,610,101	5,276,991
Poultry
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									5,979,399	5,873,944	5,392,933
Fresh produce
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									4,929,366	4,701,440	4,156,978
Paper and disposables
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									3,837,943	3,596,470	3,557,514
Seafood
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									3,280,308	3,089,350	2,541,239
Beverage products
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									1,965,251	2,059,453	1,849,780
Janitorial products
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									1,395,100	1,331,019	1,251,821
Equipment and smallwares
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									795,406	794,087	593,595
Medical supplies
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									$ 400,205	$ 569,508	$ 350,943