Derivative Instruments and Hedging Activities - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Not designated as hedging instruments
Derivative instruments and hedging activities
Derivative, Gain (Loss) on Derivative, Net	$ (0.3)	$ (1.1)	$ 0.4	$ 1.3
Not designated as hedging instruments | Interest and other income (expense), net | Forward currency contract
Derivative instruments and hedging activities
Derivative, Gain (Loss) on Derivative, Net	(0.2)	(1.0)	(0.4)	$ 1.3
Not designated as hedging instruments | Interest and other income (expense), net | Embedded derivative in purchase and delivery contracts
Derivative instruments and hedging activities
Derivative, Gain (Loss) on Derivative, Net	(0.1)	$ (0.1)	0.8
Designated as hedging instrument | Accumulated other comprehensive income | Interest rate cross-currency swap agreements
Derivative instruments and hedging activities
Derivative, Gain (Loss) on Derivative, Net	(21.9)		(0.3)
Designated as hedging instrument | Interest and other income (expense), net | Interest rate cross-currency swap agreements
Derivative instruments and hedging activities
Derivative, Gain (Loss) on Derivative, Net	2.5		7.7
Designated as hedging instrument | Cash Flow Hedging
Derivative instruments and hedging activities
Derivative, Gain (Loss) on Derivative, Net	(1.3)		(24.0)
Designated as hedging instrument | Cash Flow Hedging | Accumulated other comprehensive income | Interest rate cross-currency swap agreements
Derivative instruments and hedging activities
Derivative, Gain (Loss) on Derivative, Net	(0.2)		(22.1)
Designated as hedging instrument | Cash Flow Hedging | Interest and other income (expense), net | Interest rate cross-currency swap agreements
Derivative instruments and hedging activities
Derivative, Gain (Loss) on Derivative, Net	(1.1)		(1.9)
Designated as hedging instrument | Net Investment Hedging
Derivative instruments and hedging activities
Derivative, Gain (Loss) on Derivative, Net	$ (19.4)		$ 7.4