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Derivatives - Gains/(Losses) from Hedging Activities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Gains/(Losses) from Derivatives
Revenues	$ 1,155.7	$ 1,210.0
Interest expense	(24.8)	(28.4)
Other expense, net	(2.5)	(1.9)
Cash Flow Hedges | Foreign currency contracts | Revenues
Cash Flow and Fair Value Hedges
Gains/(losses) reclassified from AOCL into earnings	1.0	(6.1)
Amount excluded from effectiveness testing recognized in earnings based on an amortization approach	1.1	1.9
Cash Flow Hedges | Interest rate contracts | Interest Expense
Cash Flow and Fair Value Hedges
Gains/(losses) reclassified from AOCL into earnings	$ (0.1)	(0.2)
Cash Flow Hedges | Interest rate contracts | Other expense, net
Cash Flow and Fair Value Hedges
Gains/(losses) reclassified from AOCL into earnings		$ 0.7

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