Other Current Assets and Liabilities - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Other Current Assets and Liabilities [Abstract]
Consolidated Net RINs Obligation deficit	$ 461.1	$ 107.4
Crude purchase liabilities	281.0	182.5
Product financing agreements	144.1	243.8
Deferred revenue	68.4	71.0
Income and other taxes payable	53.0	86.5
Employee costs	48.2	73.3
Short-term derivative liabilities	3.1	2.7
Other	90.2	91.7
Total	$ 1,149.1	$ 858.9