RESTRUCTURING CHARGES - Additional Information (Details) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2016 job_position	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Payments for restructuring		$ 45.2	$ 8.7
EA Integration Restructuring Program
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | job_position	425
Payments for restructuring		42.5
EA Integration Restructuring Program | Minimum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		90.0
Effect on future cash flows		90.0
EA Integration Restructuring Program | Maximum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		95.0
Effect on future cash flows		95.0
EA Integration Restructuring Program | Employee-related costs
Restructuring Cost and Reserve [Line Items]
Payments for restructuring		37.0	$ 0.0
EA Integration Restructuring Program | Employee-related costs | Minimum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		65.0
EA Integration Restructuring Program | Employee-related costs | Maximum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		70.0
EA Integration Restructuring Program | Lease termination costs
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		15.0
EA Integration Restructuring Program | Other
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges		10.0
Payments for restructuring		$ 5.5