EQUITY - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	$ 367.1	$ 984.7
Other comprehensive (loss) income before reclassifications	32.1	23.0
Net amounts reclassified from AOCI/(L)	13.9	0.1
Total other comprehensive income, net of tax	46.0	23.1
Balance, end of period	9,630.6	455.0
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(239.7)	(274.0)
Balance, end of period	(193.7)	(250.9)
Gain (Loss) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(28.9)	(0.1)
Other comprehensive (loss) income before reclassifications	40.7	(14.7)
Net amounts reclassified from AOCI/(L)	4.2	0.1
Total other comprehensive income, net of tax	44.9	(14.6)
Balance, end of period	16.0	(14.7)
Gain (Loss) on Net Investment Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(2.5)	0.0
Other comprehensive (loss) income before reclassifications	29.1	(17.0)
Net amounts reclassified from AOCI/(L)	0.0	0.0
Total other comprehensive income, net of tax	29.1	(17.0)
Balance, end of period	26.6	(17.0)
Other Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(164.0)	(249.3)
Other comprehensive (loss) income before reclassifications	(38.1)	54.5
Net amounts reclassified from AOCI/(L)	0.0	0.0
Total other comprehensive income, net of tax	(38.1)	54.5
Balance, end of period	(202.1)	(194.8)
Pension and Other Post-Employment Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(44.3)	(24.6)
Other comprehensive (loss) income before reclassifications	0.4	0.2
Net amounts reclassified from AOCI/(L)	9.7	0.0
Total other comprehensive income, net of tax	10.1	0.2
Balance, end of period	$ (34.2)	$ (24.4)