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STOCK PROGRAMS - Summary of Status of Share Units (Details) - Share Units - Non-employee
 12 Months Ended
Jun. 30, 2023
$ / shares
shares
Shares  
Outstanding at the beginning of the period (in shares) | shares 121,900
Granted (in shares) | shares 5,400
Dividend equivalents (in shares) | shares 1,300
Converted (in shares) | shares (15,900)
Outstanding at the end of the period (in shares) | shares 112,700
Weighted-Average Grant Date Fair Value Per Share  
Outstanding at the beginning of the period (in dollars per share) | $ / shares $ 78.01
Weighted-average grant date fair value (in dollars per share) | $ / shares 233.46
Dividend equivalents (in dollars per share) | $ / shares 229.16
Converted (in dollars per share) | $ / shares 73.57
Outstanding at the end of the period (in dollars per share) | $ / shares $ 87.84