EMPLOYEE BENEFIT PLANS - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 10.3	$ 2.3
Interest cost	3.9	1.7
Expected return on plan assets	(1.9)	(0.8)
Amortization of prior service cost (credit)	(1.3)	(1.4)
Amortization of net loss	0.1	1.6
Settlement loss recognized	0.0	3.1
Net periodic benefit cost	11.1	6.5
Domestic Plan [Member] | Other Post- Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.5	0.3
Interest cost	0.6	0.4
Expected return on plan assets	0.0	0.0
Amortization of prior service cost (credit)	(1.4)	(1.5)
Amortization of net loss	0.0	0.0
Settlement loss recognized	0.0	0.0
Net periodic benefit cost	(0.3)	(0.8)
U.S. | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.0	0.0
Interest cost	0.2	0.7
Expected return on plan assets	0.0	(0.5)
Amortization of prior service cost (credit)	0.0	0.0
Amortization of net loss	(0.2)	0.5
Settlement loss recognized	0.0	3.1
Net periodic benefit cost	0.0	3.8
International | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	9.8	2.0
Interest cost	3.1	0.6
Expected return on plan assets	(1.9)	(0.3)
Amortization of prior service cost (credit)	0.1	0.1
Amortization of net loss	0.3	1.1
Settlement loss recognized	0.0	0.0
Net periodic benefit cost	$ 11.4	$ 3.5