Derivative Instruments - Gains (Losses) on Trading Derivatives (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Forward Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Realized gains (losses)	$ 18.0	$ (0.4)
Unrealized losses	(0.4)	(0.4)
Total	17.6	(0.8)
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Realized gains (losses)	(17.2)	(0.6)
Unrealized losses	15.0	(0.4)
Total	$ (2.2)	$ (1.0)

Derivative Instruments Not Designated as Hedging Instruments, Realized Gain (Loss)

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- Definition

Derivative Instruments Not Designated as Hedging Instruments, Unrealized Gain (Loss)

+ References

No definition available.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959

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