v3.26.1
INVENTORIES (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Inventory [Line Items]          
Crude oil and feedstocks $ 1,397,100,000   $ 1,397,100,000   $ 1,438,000,000
Refined products and blendstocks 1,309,000,000   1,309,000,000   1,260,500,000
Warehouse stock and other 187,800,000   187,800,000   177,600,000
Inventory, gross 2,893,900,000   2,893,900,000   2,876,100,000
Lower of cost or market adjustment 0   0   (313,000,000.0)
Total inventories 2,893,900,000   2,893,900,000   2,563,100,000
Excess of replacement or current costs over stated LIFO value 651,300,000   651,300,000    
Income from operations $ (1,193,800,000) $ 6,400,000 (1,439,700,000) $ 549,600,000  
Inventory, LIFO reserve, effect on income, net         $ 5,400,000
Scenario, Adjustment          
Inventory [Line Items]          
Income from operations     $ 313,000,000.0