Fair Value Measurements - Assets and Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	$ 810.4	$ 840.7
Liabilities, Fair Value Disclosure [Abstract]
Gross derivative liabilities	694.4	697.8
Fair value measured on recurring basis
Assets, Fair Value Disclosure [Abstract]
Assets, Fair Value Disclosure, Total	828.2	857.3
Liabilities, Fair Value Disclosure [Abstract]
Liabilities, Fair Value Disclosure, Total	694.4	697.8
Fair value measured on recurring basis \| Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Assets, Fair Value Disclosure, Total	233.8	220.0
Liabilities, Fair Value Disclosure [Abstract]
Liabilities, Fair Value Disclosure, Total	317.6	322.1
Fair value measured on recurring basis \| Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Assets, Fair Value Disclosure, Total	583.3	625.6
Liabilities, Fair Value Disclosure [Abstract]
Liabilities, Fair Value Disclosure, Total	375.6	373.9
Fair value measured on recurring basis \| Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value Disclosure [Abstract]
Assets, Fair Value Disclosure, Total	11.1	11.6
Liabilities, Fair Value Disclosure [Abstract]
Liabilities, Fair Value Disclosure, Total	1.1	1.8
Commodity Contract [Member] \| Fair value measured on recurring basis
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	781.9	791.8
Liabilities, Fair Value Disclosure [Abstract]
Gross derivative liabilities	679.3	669.1
Commodity Contract [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	233.8	220.0
Liabilities, Fair Value Disclosure [Abstract]
Gross derivative liabilities	317.6	322.1
Commodity Contract [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	536.9	560.2
Liabilities, Fair Value Disclosure [Abstract]
Gross derivative liabilities	360.6	345.3
Commodity Contract [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	11.1	11.6
Liabilities, Fair Value Disclosure [Abstract]
Gross derivative liabilities	1.1	1.8
Interest Rate Contract [Member] \| Fair value measured on recurring basis
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	13.4	14.8
Interest Rate Contract [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	0.0	0.0
Interest Rate Contract [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	13.4	14.8
Interest Rate Contract [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	0.0	0.0
Foreign Exchange Contract [Member] \| Fair value measured on recurring basis
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	15.1	34.1
Liabilities, Fair Value Disclosure [Abstract]
Gross derivative liabilities	15.0	28.7
Foreign Exchange Contract [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	0.0	0.0
Liabilities, Fair Value Disclosure [Abstract]
Gross derivative liabilities	0.0	0.0
Foreign Exchange Contract [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	15.1	34.1
Liabilities, Fair Value Disclosure [Abstract]
Gross derivative liabilities	15.0	28.7
Foreign Exchange Contract [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value Disclosure [Abstract]
Gross derivative assets	0.0	0.0
Liabilities, Fair Value Disclosure [Abstract]
Gross derivative liabilities	0.0	0.0
Cash Surrender Value [Member] \| Fair value measured on recurring basis
Assets, Fair Value Disclosure [Abstract]
Investments, Fair Value Disclosure	17.8	16.5
Cash Surrender Value [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Investments, Fair Value Disclosure	0.0	0.0
Cash Surrender Value [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Investments, Fair Value Disclosure	17.8	16.5
Cash Surrender Value [Member] \| Fair value measured on recurring basis \| Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value Disclosure [Abstract]
Investments, Fair Value Disclosure	$ 0.0	$ 0.0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 820
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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
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-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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Fair value of financial and nonfinancial obligations.

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