EQUITY AND CONVERTIBLE PREFERRED STOCK - Schedule of accumulated other comprehensive income (loss) (Details) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	$ 3,719.0	$ 4,011.7
Ending balance	3,707.6	3,968.9
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(733.4)	(795.1)
Other comprehensive (loss) income before reclassifications	13.2	(161.6)
Net amounts reclassified from AOCI/(L)	1.3	(2.3)
Net current-period other comprehensive (loss) income	14.5	(163.9)
Ending balance	(718.9)	(959.0)
Gain (Loss) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(1.1)	2.1
Other comprehensive (loss) income before reclassifications	(0.1)	0.7
Net amounts reclassified from AOCI/(L)	0.9	(1.2)
Net current-period other comprehensive (loss) income	0.8	(0.5)
Ending balance	(0.3)	1.6
(Loss) gain on Net Investment Hedge
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(204.8)	(23.0)
Other comprehensive (loss) income before reclassifications	2.3	45.6
Net amounts reclassified from AOCI/(L)	0.0	0.0
Net current-period other comprehensive (loss) income	2.3	45.6
Ending balance	(202.5)	22.6
Other Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(582.7)	(823.0)
Other comprehensive (loss) income before reclassifications	11.1	(206.7)
Net amounts reclassified from AOCI/(L)	0.0	0.0
Net current-period other comprehensive (loss) income	11.1	(206.7)
Ending balance	(571.6)	(1,029.7)
Pension and Other Post-Employment Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	55.2	48.8
Other comprehensive (loss) income before reclassifications	(0.1)	(1.2)
Net amounts reclassified from AOCI/(L)	0.4	(1.1)
Net current-period other comprehensive (loss) income	0.3	(2.3)
Ending balance	55.5	$ 46.5
Reclassification from accumulated other comprehensive income (loss), current period, before tax	2.3
Other comprehensive income (loss), tax	$ 2.7