STOCK PROGRAMS - Summary of Status of Share Units (Details) - Share Units - Non-employee - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Shares
Outstanding at the beginning of the period (in shares)	112,700
Granted (in shares)	8,700
Dividend equivalents (in shares)	2,200
Converted (in shares)	(10,000.0)
Outstanding at the end of the period (in shares)	113,600	112,700
Weighted-Average Grant Date Fair Value Per Share
Outstanding at the beginning of the period (in dollars per share)	$ 87.84
Weighted-average grant date fair value (in dollars per share)	123.81
Dividend equivalents (in dollars per share)	139.11
Converted (in dollars per share)	105.78
Outstanding at the end of the period (in dollars per share)	$ 90.02	$ 87.84
Intrinsic value	$ 1.5	$ 4.1	$ 8.5