SEGMENT INFORMATION (Schedule of Segment Reporting) (Details) - USD ($) $ in Millions |
12 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
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| Segment Reporting Information [Line Items] | |||||||||||||
| Revenues | $ 33,115.3 | $ 38,324.8 | $ 46,830.3 | ||||||||||
| Cost of products and other | 30,266.7 | 32,671.3 | 39,049.1 | ||||||||||
| Operating expenses (excluding depreciation and amortization expense as reflected below) | 2,606.2 | 2,694.9 | 2,599.0 | ||||||||||
| Depreciation and amortization expense | 627.8 | 571.5 | 511.1 | ||||||||||
| Other expenses, net | [1] | 313.6 | (564.4) | 517.9 | |||||||||
| Income (loss) from operations | (699.0) | 2,951.5 | 4,153.2 | ||||||||||
| Interest (income) expense, net | 72.0 | 63.8 | 246.0 | ||||||||||
| Capital expenditures | 1,008.3 | 1,173.6 | 1,010.9 | ||||||||||
| Total assets | 12,703.2 | 14,387.8 | |||||||||||
| Eliminations | |||||||||||||
| Segment Reporting Information [Line Items] | |||||||||||||
| Revenues | (349.4) | (347.8) | (319.6) | ||||||||||
| Cost of products and other | (332.0) | (329.5) | (301.6) | ||||||||||
| Operating expenses (excluding depreciation and amortization expense as reflected below) | (17.4) | (18.3) | (18.0) | ||||||||||
| Depreciation and amortization expense | 0.0 | 0.0 | 0.0 | ||||||||||
| Other expenses, net | [1] | 0.0 | 0.0 | 0.0 | |||||||||
| Income (loss) from operations | 0.0 | 0.0 | 0.0 | ||||||||||
| Interest (income) expense, net | 0.0 | 0.0 | 0.0 | ||||||||||
| Capital expenditures | 0.0 | 0.0 | 0.0 | ||||||||||
| Total assets | (39.6) | (43.7) | |||||||||||
| Refining | Operating Segments | |||||||||||||
| Segment Reporting Information [Line Items] | |||||||||||||
| Revenues | 33,077.9 | 38,288.5 | 46,780.6 | ||||||||||
| Cost of products and other | 30,590.4 | 33,000.8 | 39,350.7 | ||||||||||
| Operating expenses (excluding depreciation and amortization expense as reflected below) | 2,487.8 | 2,581.3 | 2,495.6 | ||||||||||
| Depreciation and amortization expense | 578.4 | 523.9 | 466.9 | ||||||||||
| Other expenses, net | [1] | 0.9 | (1.1) | 0.9 | |||||||||
| Income (loss) from operations | (579.5) | 2,183.6 | 4,466.4 | ||||||||||
| Interest (income) expense, net | (14.1) | (4.8) | 10.9 | ||||||||||
| Capital expenditures | [2] | 994.8 | 1,152.9 | 994.9 | |||||||||
| Total assets | 10,945.5 | 12,590.6 | |||||||||||
| Logistics | Operating Segments | |||||||||||||
| Segment Reporting Information [Line Items] | |||||||||||||
| Revenues | 386.8 | 384.1 | 369.3 | ||||||||||
| Cost of products and other | 8.3 | 0.0 | 0.0 | ||||||||||
| Operating expenses (excluding depreciation and amortization expense as reflected below) | 135.8 | 131.9 | 121.4 | ||||||||||
| Depreciation and amortization expense | 36.2 | 36.1 | 36.7 | ||||||||||
| Other expenses, net | [1] | 7.3 | 10.0 | 27.6 | |||||||||
| Income (loss) from operations | 199.1 | 206.1 | 183.7 | ||||||||||
| Interest (income) expense, net | (1.9) | 2.3 | 39.5 | ||||||||||
| Capital expenditures | 6.5 | 11.9 | 7.9 | ||||||||||
| Total assets | 781.9 | 816.8 | |||||||||||
| Corporate | Segment Reporting, Reconciling Item, Corporate Nonsegment | |||||||||||||
| Segment Reporting Information [Line Items] | |||||||||||||
| Revenues | 0.0 | 0.0 | 0.0 | ||||||||||
| Cost of products and other | 0.0 | 0.0 | 0.0 | ||||||||||
| Operating expenses (excluding depreciation and amortization expense as reflected below) | 0.0 | 0.0 | 0.0 | ||||||||||
| Depreciation and amortization expense | 13.2 | 11.5 | 7.5 | ||||||||||
| Other expenses, net | [1] | 305.4 | [3] | (573.3) | [3] | 489.4 | |||||||
| Income (loss) from operations | (318.6) | [3] | 561.8 | [3] | (496.9) | ||||||||
| Interest (income) expense, net | 88.0 | 66.3 | 195.6 | ||||||||||
| Capital expenditures | 7.0 | 8.8 | $ 8.1 | ||||||||||
| Total assets | [4] | $ 1,015.4 | $ 1,024.1 | ||||||||||
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