DERIVATIVE FINANCIAL INSTRUMENTS (Details 2) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Derivatives, Fair Value [Line Items]
Asset derivatives	$ 1.7	$ 3.5	$ 4.1
Liability derivatives	14.2	13.1	8.3
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset derivatives	0.0	0.0	0.0
Liability derivatives	13.8	11.6	7.8
Designated as Hedging Instrument | Interest Rate Contract Gains | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0.0	0.0	0.0
Designated as Hedging Instrument | Interest Rate Contract Gains | Current Installments of Long-term Debt
Derivatives, Fair Value [Line Items]
Liability derivatives	1.9	0.0	0.0
Designated as Hedging Instrument | Interest Rate Contract Gains | Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0.0	0.0	0.0
Designated as Hedging Instrument | Interest Rate Contract Gains | Long-term Debt
Derivatives, Fair Value [Line Items]
Liability derivatives	0.5	4.5	5.2
Designated as Hedging Instrument | Commodity Contracts Losses | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0.0	0.0	0.0
Designated as Hedging Instrument | Commodity Contracts Losses | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	11.4	7.2	3.7
Designated as Hedging Instrument | Commodity Contracts Gains | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0.0	0.0	0.0
Designated as Hedging Instrument | Commodity Contracts Gains | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0.0	(0.1)	(1.1)
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset derivatives	1.7	3.5	4.1
Liability derivatives	0.4	1.5	0.5
Not Designated as Hedging Instrument | Interest Rate Contract Gains | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	2.1	0.0	0.0
Not Designated as Hedging Instrument | Interest Rate Contract Gains | Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0.0	4.3	4.9
Not Designated as Hedging Instrument | Interest Rate Contract Gains | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0.0	0.0	0.0
Not Designated as Hedging Instrument | Interest Rate Contract Gains | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0.0	0.0	0.0
Not Designated as Hedging Instrument | Interest Rate Contract Loss | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	(0.4)	0.0	0.0
Not Designated as Hedging Instrument | Interest Rate Contract Loss | Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0.0	(0.8)	(0.8)
Not Designated as Hedging Instrument | Interest Rate Contract Loss | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0.0	0.0	0.0
Not Designated as Hedging Instrument | Interest Rate Contract Loss | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0.0	0.0	0.0
Not Designated as Hedging Instrument | Commodity Contracts Losses | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0.0	0.0	0.0
Not Designated as Hedging Instrument | Commodity Contracts Losses | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	$ 0.4	$ 1.5	$ 0.5