DERIVATIVE INSTRUMENTS - Amount of Gains and Losses Related Derivative Financial Instruments Not Designated as Hedging Instruments (Details) - Foreign exchange forward contracts - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Selling, general and administrative expenses
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in operations	$ (0.7)	$ 0.1	$ (5.1)
Interest income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in operations	(11.1)	(30.1)	(69.3)
Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in operations	$ (291.7)	$ (124.2)	$ 168.7