EMPLOYEE BENEFIT PLANS - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2.5	$ 5.5	$ 5.1	$ 12.5
Interest cost	2.0	2.6	4.0	5.5
Expected return on plan assets	(1.1)	(1.8)	(2.2)	(3.7)
Amortization of prior service credit	(0.1)	(0.9)	(0.2)	(1.9)
Amortization of net loss	0.0	0.2	0.0	0.6
Settlement loss recognized	1.3	0.0	2.0	0.0
Curtailment gain recognized	(0.2)	0.0	(0.2)	(5.3)
Net periodic benefit cost (credit)	4.4	5.6	8.5	7.7
Other Post- Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.2	0.3	0.4	0.6
Interest cost	0.3	0.3	0.6	0.6
Expected return on plan assets	0.0	0.0	0.0	0.0
Amortization of prior service credit	(0.1)	(0.8)	(0.2)	(1.7)
Amortization of net loss	0.0	0.0	0.0	0.0
Settlement loss recognized	0.0	0.0	0.0	0.0
Curtailment gain recognized	0.0	0.0	0.0	0.0
Net periodic benefit cost (credit)	0.4	(0.2)	0.8	(0.5)
U.S. | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.0	0.0	0.0	0.0
Interest cost	0.1	0.1	0.2	0.2
Expected return on plan assets	0.0	0.0	0.0	0.0
Amortization of prior service credit	0.0	0.0	0.0	0.0
Amortization of net loss	0.1	0.3	0.2	0.7
Settlement loss recognized	0.0	0.0	0.0	0.0
Curtailment gain recognized	0.0	0.0	0.0	0.0
Net periodic benefit cost (credit)	0.2	0.4	0.4	0.9
International | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	2.3	5.2	4.7	11.9
Interest cost	1.6	2.2	3.2	4.7
Expected return on plan assets	(1.1)	(1.8)	(2.2)	(3.7)
Amortization of prior service credit	0.0	(0.1)	0.0	(0.2)
Amortization of net loss	(0.1)	(0.1)	(0.2)	(0.1)
Settlement loss recognized	1.3	0.0	2.0	0.0
Curtailment gain recognized	(0.2)	0.0	(0.2)	(5.3)
Net periodic benefit cost (credit)	$ 3.8	$ 5.4	$ 7.3	$ 7.3