EQUITY - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
Sep. 30, 2019	Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	$ 4,593.4	$ 8,855.2
Other comprehensive (loss) income before reclassifications	(123.1)	(45.1)
Net amounts reclassified from AOCI/(L)	(1.5)	(2.9)
Net current-period other comprehensive (loss) income	(124.6)	(48.0)
Balance, end of period	4,464.3	8,613.1
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(58.8)	158.8
Balance, end of period	(183.4)	110.8
Loss on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(13.3)
Other comprehensive (loss) income before reclassifications	(0.5)
Net amounts reclassified from AOCI/(L)	(0.7)
Net current-period other comprehensive (loss) income	(1.2)
Balance, end of period	(14.5)
Gain on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period		31.7
Other comprehensive (loss) income before reclassifications		3.9
Net amounts reclassified from AOCI/(L)		(2.9)
Net current-period other comprehensive (loss) income		1.0
Balance, end of period		32.7
Gain on Net Investment Hedge
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	214.8	115.0
Other comprehensive (loss) income before reclassifications	161.2	4.3
Net amounts reclassified from AOCI/(L)	0.0	0.0
Net current-period other comprehensive (loss) income	161.2	4.3
Balance, end of period	376.0	119.3
Other Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(257.4)	(44.3)
Other comprehensive (loss) income before reclassifications	(283.8)	(53.4)
Net amounts reclassified from AOCI/(L)	0.0	0.0
Net current-period other comprehensive (loss) income	(283.8)	(53.4)
Balance, end of period	(541.2)	(97.7)
Pension and Other Post-Employment Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(2.9)	56.4
Other comprehensive (loss) income before reclassifications	0.0	0.1
Net amounts reclassified from AOCI/(L)	(0.8)	0.0
Net current-period other comprehensive (loss) income	(0.8)	0.1
Balance, end of period	(3.7)	$ 56.5
Reclassification from accumulated other comprehensive income, current period, before tax	0.8
Other comprehensive income (loss), tax	$ 0.0

Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for net period benefit cost (credit) of defined benefit plan.

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