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Contingencies and Commitments (Details) $ in Millions					3 Months Ended
Contingencies and Commitments (Details) $ in Millions	Aug. 25, 2025 motion	Aug. 05, 2025 USD ($)	Jul. 30, 2025 USD ($)	Oct. 16, 2024 USD ($)	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)
Debt Instrument [Line Items]
Total environmental accrual					$ 487.0	$ 506.0
Expected period to incur a substantial amount of expenditures					30 years
Performance Guarantee
Debt Instrument [Line Items]
Performance obligations secured by letters of credit and bank guarantees					$ 592.0
Propel Fuels Litigation
Debt Instrument [Line Items]
Damages awarded		$ 833.0		$ 604.9
Damages sought				$ 1,200.0
Damages awarded, exemplary damages		195.0	$ 195.0
Damages awarded, jury verdict		604.9
Damages awarded, pre-judgment interest		$ 33.3
Damages awarded, pre-judgment interest, percentage		7.00%
Damages awarded, post-judgment interest, percentage		10.00%
Post-trial motions filed \| motion	3
Loss contingency accrual					$ 887.0	$ 867.0