DERIVATIVE FINANCIAL INSTRUMENTS - Income Statement and AOCI Tables (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Cost of goods sold	$ (2,537.1)	$ (3,465.3)	$ (3,555.3)
Interest Expense	(65.9)	(87.9)	(72.8)
Other income (expense) - net	4.9	(6.1)	(60.6)
Derivatives not designated as hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivatives not designated as hedges	0.6	(0.7)	(1.0)
Derivatives not designated as hedges | Foreign exchange contracts | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivatives not designated as hedges	0.6	0.0	0.0
Derivatives not designated as hedges | Foreign exchange contracts | Other income (expense) - net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivatives not designated as hedges	0.0	(0.2)	(0.1)
Derivatives not designated as hedges | Debt conversion feature | Other income (expense) - net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income on Derivatives not designated as hedges	0.0	(0.5)	(0.9)
Derivatives designated as hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	(4.9)	(7.2)	0.5
Gain (Loss) Recognized on Derivatives in OCI, net of tax	(5.2)	3.6	(6.5)
Derivatives designated as hedges | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss) From Designated Hedges, Recognized in Income (Loss)	(4.5)	(8.3)	(1.6)
Derivatives designated as hedges | Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss) From Designated Hedges, Recognized in Income (Loss)	0.1	0.0	0.0
Derivatives designated as hedges | Other income (expense) - net
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss) From Designated Hedges, Recognized in Income (Loss)	0.0	1.1	2.1
Derivatives designated as hedges | Foreign exchange contracts | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized on Derivatives in OCI, net of tax	(0.6)	2.7	(5.4)
Derivatives designated as hedges | Foreign exchange contracts | Cost of Sales | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	(2.1)	(5.5)	(1.4)
Derivatives designated as hedges | Foreign exchange contracts | Interest Expense | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	0.0	0.0	0.0
Derivatives designated as hedges | Foreign exchange contracts | Other income (expense) - net | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	0.0	0.0	0.0
Derivatives designated as hedges | Commodity swaps | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):			0.0
Gain (Loss) Recognized on Derivatives in OCI, net of tax	7.0	0.3	(1.2)
Derivatives designated as hedges | Commodity swaps | Cost of Sales | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	(2.4)	(2.8)	(0.2)
Derivatives designated as hedges | Commodity swaps | Interest Expense | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	0.0	0.0	0.0
Derivatives designated as hedges | Commodity swaps | Other income (expense) - net | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	0.0	0.0
Derivatives designated as hedges | Cross currency swaps | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized on Derivatives in OCI, net of tax	0.0	0.6	0.1
Derivatives designated as hedges | Cross currency swaps | Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized on Derivatives in OCI, net of tax	(8.8)	0.0	0.0
Derivatives designated as hedges | Cross currency swaps | Cost of Sales | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	0.0	0.0	0.0
Derivatives designated as hedges | Cross currency swaps | Cost of Sales | Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount excluded from effectiveness testing recognized in Income (Loss) based on amortization approach:	0.0	0.0	0.0
Derivatives designated as hedges | Cross currency swaps | Interest Expense | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	0.0	0.0	0.0
Derivatives designated as hedges | Cross currency swaps | Interest Expense | Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount excluded from effectiveness testing recognized in Income (Loss) based on amortization approach:	0.5	0.0	0.0
Derivatives designated as hedges | Cross currency swaps | Other income (expense) - net | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	0.0	1.1	2.1
Derivatives designated as hedges | Cross currency swaps | Other income (expense) - net | Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	0.0	0.0	0.0
Amount excluded from effectiveness testing recognized in Income (Loss) based on amortization approach:	0.0	0.0	0.0
Derivatives designated as hedges | Interest rate caps | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized on Derivatives in OCI, net of tax	(2.8)	0.0	0.0
Derivatives designated as hedges | Interest rate caps | Cost of Sales | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	0.0	0.0	0.0
Derivatives designated as hedges | Interest rate caps | Interest Expense | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	(0.4)	0.0	0.0
Derivatives designated as hedges | Interest rate caps | Other income (expense) - net | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from AOCI into Income (Loss):	0.0	0.0	0.0
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest
Derivative Instruments, Gain (Loss) [Line Items]
Cost of goods sold	(2,537.1)	(3,465.3)	(3,555.3)
Interest Expense	65.9	87.9	72.8
Other income (expense) - net	$ 4.9	$ (6.1)	$ (60.6)