EQUITY - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance—July 1, 2016	$ 360.2
Total other comprehensive income (loss), net of tax	7.8	$ (12.5)
Balance—September 30, 2016	251.0
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance—July 1, 2016	(239.7)	(274.0)
Other comprehensive (loss) income before reclassifications	1.9	(10.9)
Net amounts reclassified from AOCI	5.9	(1.2)
Total other comprehensive income (loss), net of tax	7.8	(12.1)
Balance—September 30, 2016	(231.9)	(286.1)
Losses on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance—July 1, 2016	(28.9)	(0.1)
Other comprehensive (loss) income before reclassifications	5.7	5.7
Net amounts reclassified from AOCI	2.8	(1.2)
Total other comprehensive income (loss), net of tax	8.5	4.5
Balance—September 30, 2016	(20.4)	4.4
Foreign Currency Translation Adjustments, Loss on Net Investment Hedge
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance—July 1, 2016	(2.5)
Other comprehensive (loss) income before reclassifications	(7.8)
Net amounts reclassified from AOCI	0.0
Total other comprehensive income (loss), net of tax	(7.8)
Balance—September 30, 2016	(10.3)
Foreign Currency Translation Adjustments, Other Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance—July 1, 2016	(164.0)	(249.3)
Other comprehensive (loss) income before reclassifications	1.9	(16.8)
Net amounts reclassified from AOCI	0.0	0.0
Total other comprehensive income (loss), net of tax	1.9	(16.8)
Balance—September 30, 2016	(162.1)	(266.1)
Pension and Other Post-Employment Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance—July 1, 2016	(44.3)	(24.6)
Other comprehensive (loss) income before reclassifications	2.1	0.2
Net amounts reclassified from AOCI	3.1	0.0
Total other comprehensive income (loss), net of tax	5.2	0.2
Balance—September 30, 2016	$ (39.1)	$ (24.4)