STOCK PROGRAMS - Summary of restricted stock units (RSUs) (Details) - Restricted Stock Units (RSUs) - Employee	12 Months Ended
	Jun. 30, 2020 $ / shares shares
Shares
Nonvested at the beginning of the period (in shares) | shares	2,441,900
Granted (in shares) | shares	834,500
Dividend equivalents (in shares) | shares	13,700
Vested (in shares) | shares	(1,233,300)
Forfeited (in shares) | shares	(108,500)
Nonvested at the end of the period (in shares) | shares	1,948,300
Weighted-Average Grant Date Fair Value
Nonvested at the beginning of the period (in dollars per share) | $ / shares	$ 119.62
Granted (in dollars per share) | $ / shares	199.25
Dividend equivalents (in dollars per share) | $ / shares	178.63
Vested (in dollars per share) | $ / shares	111.44
Forfeited (in dollars per share) | $ / shares	145.42
Nonvested at the end of the period (in dollars per share) | $ / shares	$ 157.89