SPECIAL (GAINS) AND CHARGES - Restructuring and Non-Restructuring Activity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Restructuring
Recorded expense (income) and accrual			$ 89.5
Cash payments			(17.8)
Net cash payments			(13.5)
Effect of foreign currency translation			(0.2)
Restructuring liability	$ 75.8		75.8
Non-restructuring Special (Gains) and Charges
Property, Plant and Equipment, Net	3,778.0		3,778.0		$ 3,707.1
VENEZUELA
Non-restructuring Special (Gains) and Charges
Foreign currency translation (charges) recovery associated with remeasurement and deconsolidation, before tax		$ 3.2		$ 8.5
Foreign currency translation (charges) recovery associated with remeasurement and deconsolidation, after tax		2.0		5.3
Special (gains) and charges
Other restructuring information
Restructuring charges incurred, pre-tax	73.1	4.1	82.3	34.6
Non-restructuring Special (Gains) and Charges
Foreign currency translation (charges) recovery associated with remeasurement and deconsolidation, before tax		3.2		8.5
Business combination advisory and legal fees, after tax	1.6		3.3
Employee termination costs
Restructuring
Recorded expense (income) and accrual			88.7
Net cash payments			(13.3)
Effect of foreign currency translation			(0.2)
Restructuring liability	75.2		75.2
Other
Restructuring
Recorded expense (income) and accrual			0.8
Net cash payments			(0.2)
Restructuring liability	0.6		0.6
2018 Restructuring Plan
Other restructuring information
Restructuring charge expected to be incurred, after tax	130.0		130.0
Restructuring charge expected to be incurred, pre-tax	170.0		$ 170.0
Period over which the entity expects to incur the restructuring charge			3 years
2018 Restructuring Plan | Special (gains) and charges
Restructuring
Restructuring liability	75.8		$ 75.8
Other restructuring information
Restructuring charges incurred, pre-tax	79.4		89.5
Restructuring charges incurred, after tax	60.5		68.1
Prior Year Plans
Restructuring
Restructuring liability	$ 22.5		$ 22.5		$ 41.5
Prior Year Plans | Special (gains) and charges
Other restructuring information
Restructuring charges incurred, pre-tax		4.1		36.8
Restructuring charges incurred, after tax		$ 1.7		$ 25.9