RESTRUCTURING CHARGES - Restructuring Reserve (Details) - USD ($) $ in Millions	12 Months Ended		24 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018
Restructuring Reserve [Roll Forward]
Liability Balance at period start	$ 33.9	$ 42.8	$ 42.8
Expense (Income), Net	21.8	36.2
Foreign Currency Translation	(0.4)	0.1
Cash utilized, net	(27.0)	(45.2)
Non-cash utilized, net	0.0	0.0
Liability Balance at period end	28.3	33.9	28.3
2018 Optimization Restructuring Program
Restructuring Reserve [Roll Forward]
Liability Balance at period start	0.0
Expense (Income), Net	5.7
Foreign Currency Translation	0.0
Cash utilized, net	(0.8)
Non-cash utilized, net	0.0
Liability Balance at period end	4.9	0.0	4.9
2018 Optimization Restructuring Program | Other
Restructuring Reserve [Roll Forward]
Liability Balance at period start	0.0
Expense (Income), Net	1.2
Foreign Currency Translation	0.0
Cash utilized, net	0.0
Non-cash utilized, net	0.0
Liability Balance at period end	1.2	0.0	1.2
2018 Optimization Restructuring Program | Employee severance and other personnel benefits
Restructuring Reserve [Roll Forward]
Liability Balance at period start	0.0
Expense (Income), Net	4.5
Foreign Currency Translation	0.0
Cash utilized, net	(0.8)
Non-cash utilized, net	0.0
Liability Balance at period end	3.7	0.0	3.7
EA Integration Restructuring Program
Restructuring Reserve [Roll Forward]
Liability Balance at period start	29.7	34.5	34.5
Expense (Income), Net	10.0	37.7
Foreign Currency Translation	(0.3)	0.0
Cash utilized, net	(21.4)	(42.5)	(63.9)
Non-cash utilized, net	0.0	0.0
Liability Balance at period end	18.0	29.7	18.0
EA Integration Restructuring Program | Other
Restructuring Reserve [Roll Forward]
Liability Balance at period start	3.9	3.0	3.0
Expense (Income), Net	0.6	6.4
Foreign Currency Translation	0.0	0.0
Cash utilized, net	(0.3)	(5.5)
Non-cash utilized, net	0.0	0.0
Liability Balance at period end	4.2	3.9	4.2
EA Integration Restructuring Program | Employee severance and other personnel benefits
Restructuring Reserve [Roll Forward]
Liability Balance at period start	25.8	31.5	31.5
Expense (Income), Net	9.4	31.3
Foreign Currency Translation	(0.3)	0.0
Cash utilized, net	(21.1)	(37.0)
Non-cash utilized, net	0.0	0.0
Liability Balance at period end	13.8	25.8	13.8
Reversal	2.1
EA Integration Restructuring Program | Inventory adjustments and other restructuring
Restructuring Reserve [Roll Forward]
Expense (Income), Net	0.5
Other immaterial actions
Restructuring Reserve [Roll Forward]
Reversal		3.2
Other immaterial actions | Other
Restructuring Reserve [Roll Forward]
Liability Balance at period start	1.7	1.2	1.2
Expense (Income), Net	1.0	1.1
Foreign Currency Translation	(0.1)	0.1
Cash utilized, net	(1.8)	(0.7)
Non-cash utilized, net	0.0	0.0
Liability Balance at period end	0.8	1.7	0.8
Other immaterial actions | Employee severance and other personnel benefits
Restructuring Reserve [Roll Forward]
Liability Balance at period start	2.5	7.1	7.1
Expense (Income), Net	5.1	(2.6)
Foreign Currency Translation	0.0	0.0
Cash utilized, net	(3.0)	(2.0)
Non-cash utilized, net	0.0	0.0
Liability Balance at period end	4.6	2.5	4.6
Other immaterial actions | Inventory adjustments and other restructuring
Restructuring Reserve [Roll Forward]
Liability Balance at period start	4.2	8.3	8.3
Expense (Income), Net	6.1	(1.5)
Foreign Currency Translation	(0.1)	0.1
Cash utilized, net	(4.8)	(2.7)
Non-cash utilized, net	0.0	0.0
Liability Balance at period end	5.4	$ 4.2	$ 5.4
Selling, general and administrative expense | 2018 Optimization Restructuring Program
Restructuring Reserve [Roll Forward]
Expense (Income), Net	1.2
Selling, general and administrative expense | 2018 Optimization Restructuring Program | Other
Restructuring Reserve [Roll Forward]
Expense (Income), Net	$ 1.2