EQUITY AND CONVERTIBLE PREFERRED STOCK - Schedule of accumulated other comprehensive income (loss) (Details) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	$ 4,011.7	$ 3,997.4
Other comprehensive (loss) income before reclassifications	(161.6)	57.8
Net amounts reclassified from AOCI/(L)	(2.3)	(2.0)
Net current-period other comprehensive income (loss)	(163.9)	55.8
Ending balance	3,968.9	4,612.7
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(795.1)	(662.4)
Ending balance	(959.0)	(606.6)
Gain on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	2.1	0.7
Other comprehensive (loss) income before reclassifications	0.7	(0.1)
Net amounts reclassified from AOCI/(L)	(1.2)	0.5
Net current-period other comprehensive income (loss)	(0.5)	0.4
Ending balance	1.6	1.1
(Loss) gain on Net Investment Hedge
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(23.0)	(49.8)
Other comprehensive (loss) income before reclassifications	45.6	(9.9)
Net amounts reclassified from AOCI/(L)	0.0	0.0
Net current-period other comprehensive income (loss)	45.6	(9.9)
Ending balance	22.6	(59.7)
Other Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(823.0)	(667.9)
Other comprehensive (loss) income before reclassifications	(206.7)	66.8
Net amounts reclassified from AOCI/(L)	0.0	0.0
Net current-period other comprehensive income (loss)	(206.7)	66.8
Ending balance	(1,029.7)	(601.1)
Pension and Other Post-Employment Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	48.8	54.6
Other comprehensive (loss) income before reclassifications	(1.2)	1.0
Net amounts reclassified from AOCI/(L)	(1.1)	(2.5)
Net current-period other comprehensive income (loss)	(2.3)	(1.5)
Ending balance	46.5	$ 53.1
Reclassification from accumulated other comprehensive income (loss), current period, before tax	2.0
Other comprehensive income (loss), tax	$ 0.9