Fair Value Measurements - Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets:
Gross Derivative Assets	$ 499.6	$ 840.7
Liabilities:
Gross Derivative Liabilities	401.6	697.8
Fair value measured on recurring basis
Assets:
Total assets	519.6	857.3
Liabilities:
Total liabilities at fair value	401.6	697.8
Fair value measured on recurring basis | Level 1
Assets:
Total assets	157.4	220.0
Liabilities:
Total liabilities at fair value	165.9	322.1
Fair value measured on recurring basis | Level 2
Assets:
Total assets	352.8	625.6
Liabilities:
Total liabilities at fair value	232.0	373.9
Fair value measured on recurring basis | Level 3
Assets:
Total assets	9.4	11.6
Liabilities:
Total liabilities at fair value	3.7	1.8
Commodity contracts: | Fair value measured on recurring basis
Assets:
Gross Derivative Assets	467.6	791.8
Liabilities:
Gross Derivative Liabilities	378.7	669.1
Commodity contracts: | Fair value measured on recurring basis | Level 1
Assets:
Gross Derivative Assets	157.4	220.0
Liabilities:
Gross Derivative Liabilities	165.9	322.1
Commodity contracts: | Fair value measured on recurring basis | Level 2
Assets:
Gross Derivative Assets	300.8	560.2
Liabilities:
Gross Derivative Liabilities	209.1	345.3
Commodity contracts: | Fair value measured on recurring basis | Level 3
Assets:
Gross Derivative Assets	9.4	11.6
Liabilities:
Gross Derivative Liabilities	3.7	1.8
Foreign currency exchange contracts: | Fair value measured on recurring basis
Assets:
Gross Derivative Assets	29.1	34.1
Liabilities:
Gross Derivative Liabilities	22.9	28.7
Foreign currency exchange contracts: | Fair value measured on recurring basis | Level 1
Assets:
Gross Derivative Assets	0.0	0.0
Liabilities:
Gross Derivative Liabilities	0.0	0.0
Foreign currency exchange contracts: | Fair value measured on recurring basis | Level 2
Assets:
Gross Derivative Assets	29.1	34.1
Liabilities:
Gross Derivative Liabilities	22.9	28.7
Foreign currency exchange contracts: | Fair value measured on recurring basis | Level 3
Assets:
Gross Derivative Assets	0.0	0.0
Liabilities:
Gross Derivative Liabilities	0.0	0.0
Cash surrender value of life insurance | Fair value measured on recurring basis
Assets:
Cash surrender value of life insurance	20.0	16.5
Cash surrender value of life insurance | Fair value measured on recurring basis | Level 1
Assets:
Cash surrender value of life insurance	0.0	0.0
Cash surrender value of life insurance | Fair value measured on recurring basis | Level 2
Assets:
Cash surrender value of life insurance	20.0	16.5
Cash surrender value of life insurance | Fair value measured on recurring basis | Level 3
Assets:
Cash surrender value of life insurance	0.0	0.0
Interest rate contract: | Fair value measured on recurring basis
Assets:
Gross Derivative Assets	2.9	14.8
Interest rate contract: | Fair value measured on recurring basis | Level 1
Assets:
Gross Derivative Assets	0.0	0.0
Interest rate contract: | Fair value measured on recurring basis | Level 2
Assets:
Gross Derivative Assets	2.9	14.8
Interest rate contract: | Fair value measured on recurring basis | Level 3
Assets:
Gross Derivative Assets	$ 0.0	$ 0.0