SPECIAL (GAINS) AND CHARGES - Restructuring Activities, Acquisition and Integration Related Costs (Details) 10Q $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) item	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Restructuring
Restructuring charges incurred, pre-tax				$ 1.8
Restructuring charges incurred, after tax				0.1
Restructuring net gain		$ 1.2
Restructuring net gain, net of tax		1.9
Non-restructuring Special (Gains) and Charges
Energy related charges, before tax			$ 0.0	63.6
Energy related charges, after tax				42.9
Energy related charges, inventory write-downs and related disposal costs				31.1
Property, Plant and Equipment, Net	$ 3,497.4		3,497.4		$ 3,365.0
Contract termination and litigation related charges, before tax	17.8		18.0
Contract termination and litigation related charges, after tax	14.4		14.5
Fixed asset impairment and related inventory charges, before tax		10.0
Fixed asset impairment and related inventory charges, after tax		6.3
Litigation related charges, before tax		22.5		23.5
Litigation related charges, after tax		13.9		15.1
Other current and noncurrent liabilities
Restructuring
Restructuring liability	28.4		28.4		$ 39.6
Special (gains) and charges
Restructuring
Restructuring charges incurred, pre-tax	30.8	(2.1)	30.5	0.9
Non-restructuring Special (Gains) and Charges
Acquisition and integration costs	4.6	1.0	10.9	3.3
Acquisition and integration costs, after tax		0.7		2.1
Business combination and integration related costs, pre tax	4.6		10.9
Business combination and integration related costs, after tax	3.0		7.3
Energy related charges, before tax		12.6		12.6
Foreign currency translation (charges) recovery associated with remeasurement and deconsolidation, before tax	5.3	7.8	5.3	7.8
Cost of sales
Restructuring
Restructuring charges incurred, pre-tax	2.2	0.9	2.2	0.9
Non-restructuring Special (Gains) and Charges
Acquisition and integration costs	11.1		12.6
Energy related charges, before tax		51.0		51.0
Cost of sales | Anios and Swisher
Non-restructuring Special (Gains) and Charges
Acquisition and integration costs	11.1		12.6
Acquisition and integration costs, after tax	$ 7.0		8.0
2017 Restructuring Plan
Restructuring
Number of positions expected to be eliminated | item	530
Restructuring charges incurred, pre-tax	$ 33.0
Restructuring charges incurred, after tax	25.0
Restructuring liability	28.4		28.4
2017 Restructuring Plan | Minimum
Restructuring
Restructuring charge expected to be incurred, pre-tax	40.0		40.0
Restructuring charge expected to be incurred, after tax	30.0		30.0
2017 Restructuring Plan | Maximum
Restructuring
Restructuring charge expected to be incurred, pre-tax	45.0		45.0
Restructuring charge expected to be incurred, after tax	35.0		35.0
VENEZUELA
Non-restructuring Special (Gains) and Charges
Foreign currency translation (charges) recovery associated with remeasurement and deconsolidation, before tax	5.3	7.8
Foreign currency translation (charges) recovery associated with remeasurement and deconsolidation, after tax	3.3	4.9
Global Energy | Special (gains) and charges
Non-restructuring Special (Gains) and Charges
Employee termination costs				12.8
Accrued severance	$ 4.3		$ 4.3
Global Energy | North America
Non-restructuring Special (Gains) and Charges
Energy related charges, fixed asset impairment and accelerated depreciation				18.2
Certain U.S. Production Equipment and Buildings | Global Energy | North America
Non-restructuring Special (Gains) and Charges
Property, Plant and Equipment, Net		$ 0.0		$ 0.0