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NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Fair Value Assumptions Using Black-Scholes Option-Pricing Model) (Details)
12 Months Ended
Jun. 26, 2019
Jun. 27, 2018
Jun. 28, 2017
Disclosure Nature Of Operations And Summary Of Significant Accounting Policies Narrative [Abstract]      
Expected volatility 27.20% 25.20% 25.50%
Risk-free interest rate 2.90% 1.90% 1.30%
Expected lives 5 years 6 years 5 years
Dividend yield 3.50% 4.40% 2.60%