v3.26.1
Restructuring and Other Charges - Schedule of Restructuring Costs (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Restructuring Cost and Reserve [Line Items]        
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] General and administrative expenses, Operating expenses (excluding depreciation and amortization presented below) General and administrative expenses, Operating expenses (excluding depreciation and amortization presented below) General and administrative expenses, Operating expenses (excluding depreciation and amortization presented below) General and administrative expenses, Operating expenses (excluding depreciation and amortization presented below)
Restructuring charges $ 10.9 $ 25.5 $ 13.6 $ 33.9
Accumulated Restructuring Costs 213.5   213.5  
Consulting fees, severance costs, and equity-based compensation        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 6.4 22.1 8.1 29.6
Accumulated Restructuring Costs 113.2   113.2  
Severance costs and equity-based compensation        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 4.5 3.4 5.5 4.3
Accumulated Restructuring Costs 27.4   27.4  
Other        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 1.7   1.7  
Impairment        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 54.4   54.4  
Pension settlement        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 2.1   2.1  
Asset write-off        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 14.7   14.7  
Corporate, Other and Eliminations        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 10.9 25.5 13.6 33.6
Accumulated Restructuring Costs 173.6   173.6  
Corporate, Other and Eliminations | Consulting fees, severance costs, and equity-based compensation        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 6.4 22.1 8.1 29.6
Accumulated Restructuring Costs 112.3   112.3  
Corporate, Other and Eliminations | Severance costs and equity-based compensation        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 4.5 3.4 5.5 4.0
Accumulated Restructuring Costs 26.6   26.6  
Corporate, Other and Eliminations | Other        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 0.0   0.0  
Corporate, Other and Eliminations | Impairment        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 32.3   32.3  
Corporate, Other and Eliminations | Pension settlement        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 2.1   2.1  
Corporate, Other and Eliminations | Asset write-off        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 0.3   0.3  
Refining | Operating Segments        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 0.0 0.0 0.0 0.3
Accumulated Restructuring Costs 39.5   39.5  
Refining | Operating Segments | Consulting fees, severance costs, and equity-based compensation        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 0.0 0.0 0.0 0.0
Accumulated Restructuring Costs 0.5   0.5  
Refining | Operating Segments | Severance costs and equity-based compensation        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 0.0 0.0 0.0 0.3
Accumulated Restructuring Costs 0.8   0.8  
Refining | Operating Segments | Other        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 1.7   1.7  
Refining | Operating Segments | Impairment        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 22.1   22.1  
Refining | Operating Segments | Pension settlement        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 0.0   0.0  
Refining | Operating Segments | Asset write-off        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 14.4   14.4  
Logistics | Operating Segments        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 0.0 0.0 0.0 0.0
Accumulated Restructuring Costs 0.4   0.4  
Logistics | Operating Segments | Consulting fees, severance costs, and equity-based compensation        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 0.0 0.0 0.0 0.0
Accumulated Restructuring Costs 0.4   0.4  
Logistics | Operating Segments | Severance costs and equity-based compensation        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 0.0 $ 0.0 0.0 $ 0.0
Accumulated Restructuring Costs 0.0   0.0  
Logistics | Operating Segments | Other        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 0.0   0.0  
Logistics | Operating Segments | Impairment        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 0.0   0.0  
Logistics | Operating Segments | Pension settlement        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs 0.0   0.0  
Logistics | Operating Segments | Asset write-off        
Restructuring Cost and Reserve [Line Items]        
Accumulated Restructuring Costs $ 0.0   $ 0.0