DERIVATIVE FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Oct. 31, 2016	Jun. 30, 2016
Derivative [Line Items]
Derivative, Notional Amount		$ 174.6	$ 116.5
August Interest Rate Swap Settlement	$ 2.3
Deferred Interest Rate Swap in Debt		2.2
July Interest Rate Swap Settlement		1.8
Derivative Liability, Fair Value, Gross Liability		20.8	37.6
Other commodities
Derivative [Line Items]
Derivative, Notional Amount		60.2	52.7
Cash Flow Hedges Derivative Instruments at Fair Value, Net		17.6
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months		12.7
Forward Contracts
Derivative [Line Items]
Derivative, Notional Amount		140.6	123.7
Forward Contracts Sell
Derivative [Line Items]
Derivative, Notional Amount		99.2	82.6
Interest Rate Swaps Designated As Fair Value Hedges
Derivative [Line Items]
Derivative, Notional Amount		0.0	500.0		$ 250.0	$ 250.0
Derivative, Gain (Loss) on Derivative, Net		(2.6)	(2.1)	$ 2.9
Fixed Interest Rate Swaps $1,100M (Tranche 1)
Derivative [Line Items]
Derivative, Notional Amount						1,100.0
Fixed Interest Rate Swaps $900M (Tranche 2)
Derivative [Line Items]
Derivative, Notional Amount						900.0
Fixed Interest Rate Swaps $400M (Tranche 3)
Derivative [Line Items]
Derivative, Notional Amount						$ 400.0
Cash Flow Hedging | Interest Expense | Interest Rate Contract Gains
Derivative [Line Items]
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net		$ 4.3	$ 8.9	$ 3.1