CONSOLIDATED BALANCE SHEETS LOCATION OF DERIVATIVE FAIR VALUES (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Derivative [Line Items]
Derivative asset, fair value, gross	$ 78.9	$ 45.7
Derivative liability, fair value, gross	34.0	14.0
Interest rate swaps
Derivative [Line Items]
Derivative liability, fair value, gross	28.4	10.8
Cross currency basis swaps
Derivative [Line Items]
Derivative asset, fair value, gross	15.6	$ 6.9
Prepaid Expenses and Other Current Assets, Net | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	51.9		$ 26.9
Prepaid Expenses and Other Current Assets, Net | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	4.8		2.0
Prepaid Expenses and Other Current Assets, Net | Foreign exchange forward contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	51.9		26.9
Prepaid Expenses and Other Current Assets, Net | Foreign exchange forward contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	4.8		2.0
Prepaid Expenses and Other Current Assets, Net | Interest rate swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	0.0		0.0
Prepaid Expenses and Other Current Assets, Net | Cross currency basis swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	0.0		0.0
Other Noncurrent Assets, Net | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	22.9		18.2
Other Noncurrent Assets, Net | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	0.0		0.0
Other Noncurrent Assets, Net | Foreign exchange forward contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	7.3		11.3
Other Noncurrent Assets, Net | Foreign exchange forward contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	0.0		0.0
Other Noncurrent Assets, Net | Interest rate swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	0.0		0.0
Other Noncurrent Assets, Net | Cross currency basis swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross	15.6		6.9
Accrued Liabilities | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	3.9		1.3
Accrued Liabilities | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	1.6		1.5
Accrued Liabilities | Foreign exchange forward contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	3.9		1.3
Accrued Liabilities | Foreign exchange forward contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	1.6		1.5
Accrued Liabilities | Interest rate swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	0.0		0.0
Accrued Liabilities | Cross currency basis swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	0.0		0.0
Other Noncurrent Liabilities | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	29.2		12.6
Other Noncurrent Liabilities | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	0.0		0.0
Other Noncurrent Liabilities | Foreign exchange forward contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	0.8		1.8
Other Noncurrent Liabilities | Foreign exchange forward contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	0.0		0.0
Other Noncurrent Liabilities | Interest rate swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	28.4		10.8
Other Noncurrent Liabilities | Cross currency basis swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross	$ 0.0		$ 0.0