STOCK-BASED COMPENSATION PLANS (Assumptions Utilized in the Valuation in Calculating the Compensation Expense for Stock Options Granted) (Details)	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Share-based Compensation [Abstract]
Expected life	5 years 6 months	5 years 6 months	5 years 7 months 6 days
Weighted average expected life	5 years 6 months	5 years 6 months	5 years 7 months 6 days
Expected volatility, minimum	15.70%	16.20%	16.40%
Expected volatility, maximum	18.70%	16.90%	17.30%
Weighted-average volatility	15.70%	16.90%	17.20%
Risk-free interest rate, minimum	1.30%	1.30%	1.30%
Risk-free interest rate, maximum	2.60%	2.20%	1.70%
Weighted-average risk-free interest rate	1.80%	1.30%	1.70%
Dividend yield, minimum	2.40%	2.40%	2.50%
Dividend yield, maximum	3.00%	2.80%	2.80%
Weighted-average dividend yield	2.50%	2.60%	2.80%