Derivative Instruments and Hedging Activities - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Not designated as hedging instruments
Derivative instruments and hedging activities
Impact on net income of unrealized gains and losses	$ (5.4)	$ 0.1
Not designated as hedging instruments | Interest and other income (expense), net | Forward currency contract
Derivative instruments and hedging activities
Impact on net income of unrealized gains and losses	(5.0)	(0.5)
Not designated as hedging instruments | Interest and other income (expense), net | Embedded derivatives in purchase and delivery contracts
Derivative instruments and hedging activities
Impact on net income of unrealized gains and losses	(0.4)	0.6
Designated as hedging instrument | Cash Flow Hedging
Derivative instruments and hedging activities
Impact on net income of unrealized gains and losses	8.8	(19.0)
Designated as hedging instrument | Cash Flow Hedging | Accumulated other comprehensive income | Interest rate and cross currency swap agreements
Derivative instruments and hedging activities
Impact on net income of unrealized gains and losses	9.9	(19.0)
Designated as hedging instrument | Cash Flow Hedging | Interest and other income (expense), net | Interest rate and cross currency swap agreements
Derivative instruments and hedging activities
Impact on net income of unrealized gains and losses	(1.1)
Designated as hedging instrument | Net Investment Hedging
Derivative instruments and hedging activities
Impact on net income of unrealized gains and losses	20.3	32.5
Designated as hedging instrument | Net Investment Hedging | Accumulated other comprehensive income | Interest rate and cross currency swap agreements
Derivative instruments and hedging activities
Impact on net income of unrealized gains and losses	17.8	29.9
Designated as hedging instrument | Net Investment Hedging | Interest and other income (expense), net | Interest rate and cross currency swap agreements
Derivative instruments and hedging activities
Impact on net income of unrealized gains and losses	$ 2.5	$ 2.6