EQUITY AND CONVERTIBLE PREFERRED STOCK - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	$ 3,062,200,000	$ 3,228,800,000
Other comprehensive income (loss) before reclassifications	(142,300,000)	(11,400,000)
Net amounts reclassified from AOCI/(L)	4,300,000	5,500,000
Net current-period other comprehensive income (loss)	(138,000,000.0)	(5,900,000)
Balance, end of period	3,444,200,000	3,425,600,000
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(321,900,000)	(456,200,000)
Balance, end of period	(459,900,000)	(462,100,000)
(Loss) gain on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(15,500,000)	(43,000,000.0)
Other comprehensive income (loss) before reclassifications	600,000	(1,000,000.0)
Net amounts reclassified from AOCI/(L)	3,800,000	6,700,000
Net current-period other comprehensive income (loss)	4,400,000	5,700,000
Balance, end of period	(11,100,000)	(37,300,000)
(Loss) gain on Net Investment Hedge
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(32,200,000)	261,900,000
Other comprehensive income (loss) before reclassifications	16,700,000	(210,700,000)
Net amounts reclassified from AOCI/(L)	0	0
Net current-period other comprehensive income (loss)	16,700,000	(210,700,000)
Balance, end of period	(15,500,000)	51,200,000
Other Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(259,300,000)	(683,800,000)
Other comprehensive income (loss) before reclassifications	(159,600,000)	200,300,000
Net amounts reclassified from AOCI/(L)	0	0
Net current-period other comprehensive income (loss)	(159,600,000)	200,300,000
Balance, end of period	(418,900,000)	(483,500,000)
Pension and Other Post-Employment Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(14,900,000)	8,700,000
Other comprehensive income (loss) before reclassifications	0	0
Net amounts reclassified from AOCI/(L)	500,000	(1,200,000)
Net current-period other comprehensive income (loss)	500,000	(1,200,000)
Balance, end of period	(14,400,000)	$ 7,500,000
Reclassification from accumulated other comprehensive income (loss), current period, before tax	500,000
Other comprehensive income (loss), tax	$ 0