v3.26.1
INVENTORIES (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Inventory [Line Items]      
Crude oil and feedstocks $ 1,587,500,000   $ 1,438,000,000
Refined products and blendstocks 1,311,700,000   1,260,500,000
Warehouse stock and other 179,000,000.0   177,600,000
Inventory, Gross 3,078,200,000   2,876,100,000
Lower of cost or market adjustment 0   (313,000,000.0)
Total inventories 3,078,200,000   2,563,100,000
Excess of replacement or current costs over stated LIFO value 1,600,000,000    
Income from operations (245,900,000) $ 543,200,000  
Inventory, LIFO reserve, effect on income, net     $ 5,400,000
Scenario, Adjustment      
Inventory [Line Items]      
Income from operations $ 313,000,000.0