Derivative Instruments Derivative Instruments Affecting the Consolidated Statements of Operations and Consolidated Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Foreign exchange loss	Foreign exchange loss	Foreign exchange loss	Foreign exchange loss
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in OCI on Derivative	$ 47.4	$ (2.1)	$ 174.8	$ 55.1
Amount of Gain/(Loss) Reclassified from AOCI into Income	(0.7)	(0.6)	(1.9)	(1.8)
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Treasury Lock Agreements [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in OCI on Derivative	47.4	(2.1)	174.8	55.1
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Treasury Lock Agreements [Member] \| Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from AOCI into Income	(0.7)	(0.6)	(1.9)	(1.8)
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income on Derivative	(8.1)	4.9	(18.9)	0.8
Not Designated as Hedging Instrument [Member] \| Foreign Currency Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income on Derivative	$ (8.1)	$ 4.9	$ (18.9)	$ 0.8

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