EMPLOYEE BENEFIT PLANS - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2.3	$ 2.0
Interest cost	1.7	2.2
Expected return on plan assets	(0.8)	(0.9)
Amortization of prior service credit	(1.4)	(1.3)
Amortization of net loss	1.6	1.1
Settlement loss recognized	3.1	0.0
Net periodic benefit cost	6.5	3.1
U.S. Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.0	0.0
Interest cost	0.7	0.8
Expected return on plan assets	(0.5)	(0.6)
Amortization of prior service credit	0.0	0.0
Amortization of net loss	0.5	0.3
Settlement loss recognized	3.1	0.0
Net periodic benefit cost	3.8	0.5
International Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	2.0	1.7
Interest cost	0.6	0.9
Expected return on plan assets	(0.3)	(0.3)
Amortization of prior service credit	0.1	0.1
Amortization of net loss	1.1	0.8
Settlement loss recognized	0.0	0.0
Net periodic benefit cost	3.5	3.2
Other Post-Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.3	0.3
Interest cost	0.4	0.5
Expected return on plan assets	0.0	0.0
Amortization of prior service credit	(1.5)	(1.4)
Amortization of net loss	0.0	0.0
Settlement loss recognized	0.0	0.0
Net periodic benefit cost	$ (0.8)	$ (0.6)