EMPLOYEE BENEFIT PLANS (Components of Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0.0	$ 0.0	$ 0.1	$ 0.0
Interest cost	0.2	0.1	0.8	0.8
Expected return on plan assets	0.0	0.0	0.0	0.0
Amortization of prior service credit	(0.1)	(0.1)	(0.3)	(0.3)
Amortization of net actuarial losses	0.1	0.0	0.1	0.1
Settlements/curtailments	0.0	0.0	0.0	0.0
Net periodic benefit costs	0.2	0.0	0.7	0.6
United States | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.6	0.8	2.4	3.5
Interest cost	0.6	0.7	1.8	2.2
Expected return on plan assets	(1.0)	(0.8)	(2.6)	(2.4)
Amortization of prior service credit	0.0	0.0	0.0	0.0
Amortization of net actuarial losses	0.7	1.3	3.3	3.8
Settlements/curtailments	0.0	0.0	0.0	0.0
Net periodic benefit costs	0.9	2.0	4.9	7.1
Foreign Plan | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	1.1	1.1	3.5	3.5
Interest cost	3.4	4.7	11.6	13.5
Expected return on plan assets	(7.3)	(7.4)	(23.9)	(21.0)
Amortization of prior service credit	(0.1)	0.0	(0.1)	(0.1)
Amortization of net actuarial losses	1.5	2.1	5.1	5.9
Settlements/curtailments	0.0	3.3	0.0	3.3
Net periodic benefit costs	$ (1.4)	$ 3.8	$ (3.8)	$ 5.1