CONSOLIDATED BALANCE SHEETS LOCATION OF DERIVATIVE FAIR VALUES (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative asset, fair value, gross	$ 4.3	$ 45.7
Derivative liability, fair value, gross	10.9	14.0
Interest rate swaps
Derivative [Line Items]
Derivative liability, fair value, gross		10.8
Cross currency basis swaps
Derivative [Line Items]
Derivative asset, fair value, gross		6.9
Derivative liability, fair value, gross	$ 6.5
Prepaid Expenses and Other Current Assets | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		26.9
Prepaid Expenses and Other Current Assets | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		2.0
Prepaid Expenses and Other Current Assets | Foreign exchange forward contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		26.9
Prepaid Expenses and Other Current Assets | Foreign exchange forward contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		2.0
Prepaid Expenses and Other Current Assets | Interest rate swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		0.0
Prepaid Expenses and Other Current Assets | Cross currency basis swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		0.0
Other Noncurrent Assets | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		18.2
Other Noncurrent Assets | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		0.0
Other Noncurrent Assets | Foreign exchange forward contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		11.3
Other Noncurrent Assets | Foreign exchange forward contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		0.0
Other Noncurrent Assets | Interest rate swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		0.0
Other Noncurrent Assets | Cross currency basis swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative asset, fair value, gross		6.9
Accrued Liabilities | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		1.3
Accrued Liabilities | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		1.5
Accrued Liabilities | Foreign exchange forward contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		1.3
Accrued Liabilities | Foreign exchange forward contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		1.5
Accrued Liabilities | Interest rate swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		0.0
Accrued Liabilities | Cross currency basis swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		0.0
Other Noncurrent Liabilities | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		12.6
Other Noncurrent Liabilities | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		0.0
Other Noncurrent Liabilities | Foreign exchange forward contracts | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		1.8
Other Noncurrent Liabilities | Foreign exchange forward contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		0.0
Other Noncurrent Liabilities | Interest rate swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		10.8
Other Noncurrent Liabilities | Cross currency basis swaps | Designated as Hedging Instrument
Derivative [Line Items]
Derivative liability, fair value, gross		$ 0.0