STOCK-BASED COMPENSATION PLANS (Assumptions Utilized in the Valuation in Calculating the Compensation Expense for Stock Options Granted) (Details)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation [Abstract]
Expected life	5 years 4 months 24 days	5 years 6 months	5 years 6 months
Weighted average expected life	5 years 4 months 24 days	5 years 6 months	5 years 6 months
Expected volatility, minimum	17.30%	15.70%	16.20%
Expected volatility, maximum	20.20%	18.70%	16.90%
Weighted-average volatility	17.40%	15.70%	16.90%
Risk-free interest rate, minimum	2.50%	1.30%	1.30%
Risk-free interest rate, maximum	3.00%	2.60%	2.20%
Weighted-average risk-free interest rate	2.90%	1.80%	1.30%
Dividend yield, minimum	2.50%	2.40%	2.40%
Dividend yield, maximum	2.60%	3.00%	2.80%
Weighted-average dividend yield	2.60%	2.50%	2.60%