Derivatives and Fair Value Measurements - Gains and Losses on Hedging Derivatives (Details) - Designated as Hedging Instrument - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (2.8)	$ (29.7)	$ 70.3	$ (540.6)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(21.9)	(118.5)	(77.3)	(311.2)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	19.1	88.8	147.6	(229.4)
Variation margin (received) posted	0.0		0.0		$ 209.7
Foreign currency option contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(2.7)	(3.0)	(7.8)	(8.2)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(2.2)	(1.6)	(7.9)	(3.8)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	(0.5)	(1.4)	0.1	(4.4)
Derivative contracts related to forecasted sales
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net		(27.0)	78.1	(543.1)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	0.0	(117.4)	(80.9)	(308.0)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0.0	90.4	159.0	(235.1)
Financial trading contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(0.1)	0.3	0.0	10.7
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(19.7)	0.5	11.5	0.6
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	$ 19.6	$ (0.2)	$ (11.5)	$ 10.1