v3.26.1
Segment Disclosures and Related Information - Schedule of Analysis by Segment (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Revenues and Other Income      
Total sales and other operating revenues $ 32,540 $ 30,430  
Equity in earnings of affiliates 252 153  
Net gain on dispositions 6 1,087  
Other income 204 56  
Total Revenues and Other Income 33,002 31,726  
Costs and Expenses      
Purchased crude oil and products 29,216 27,660  
Operating expenses 1,881 1,622  
Selling, general and administrative expenses 537 519  
Depreciation and amortization 558 791  
Impairments 8 26  
Taxes other than income taxes 234 233  
Interest and debt expense 286 221  
Other segment items 22 6  
Total Costs and Expenses 32,742 31,078  
Income before income taxes 260 648  
Interest Income 31 34  
Capital Expenditures and Investments 582 423  
Investments In and Advances to Affiliates 11,496   $ 11,428
Total Assets 84,084   73,680
Midstream      
Revenues and Other Income      
Total sales and other operating revenues 4,718 4,827  
Chemicals      
Revenues and Other Income      
Total sales and other operating revenues 0  
Refining      
Revenues and Other Income      
Total sales and other operating revenues 7,772 5,702  
M&S      
Revenues and Other Income      
Total sales and other operating revenues 19,544 19,163  
Renewable Fuels      
Revenues and Other Income      
Total sales and other operating revenues 496 728  
Operating Segments | Midstream      
Revenues and Other Income      
Total sales and other operating revenues 5,524 5,458  
Equity in earnings of affiliates 103 110  
Net gain on dispositions 6 69  
Other income 19 10  
Total Revenues and Other Income 5,652 5,647  
Costs and Expenses      
Purchased crude oil and products 4,109 4,089  
Operating expenses 541 458  
Selling, general and administrative expenses 56 53  
Depreciation and amortization 274 233  
Impairments 4 0  
Taxes other than income taxes 75 61  
Interest and debt expense 0 0  
Other segment items 2 2  
Total Costs and Expenses 5,061 4,896  
Income before income taxes 591 751  
Interest Income 0 0  
Capital Expenditures and Investments 343 216  
Investments In and Advances to Affiliates 2,097   2,117
Total Assets 30,348   30,172
Operating Segments | Chemicals      
Revenues and Other Income      
Total sales and other operating revenues 0 0  
Equity in earnings of affiliates 114 113  
Net gain on dispositions 0 0  
Other income 0 0  
Total Revenues and Other Income 114 113  
Costs and Expenses      
Purchased crude oil and products 0 0  
Operating expenses 2 2  
Selling, general and administrative expenses (2) (2)  
Depreciation and amortization 0 0  
Impairments 0 0  
Taxes other than income taxes 0 0  
Interest and debt expense 0 0  
Other segment items 0 0  
Total Costs and Expenses 0 0  
Income before income taxes 114 113  
Interest Income 0 0  
Capital Expenditures and Investments 0 0  
Investments In and Advances to Affiliates 8,018   7,899
Total Assets 8,018   7,899
Operating Segments | Refining      
Revenues and Other Income      
Total sales and other operating revenues 22,534 15,875  
Equity in earnings of affiliates 0 (105)  
Net gain on dispositions 0 0  
Other income 26 3  
Total Revenues and Other Income 22,560 15,773  
Costs and Expenses      
Purchased crude oil and products 20,733 15,025  
Operating expenses 1,229 1,074  
Selling, general and administrative expenses 52 46  
Depreciation and amortization 215 456  
Impairments 2 1  
Taxes other than income taxes 106 110  
Interest and debt expense 0 0  
Other segment items 15 (2)  
Total Costs and Expenses 22,352 16,710  
Income before income taxes 208 (937)  
Interest Income 0 0  
Capital Expenditures and Investments 210 176  
Investments In and Advances to Affiliates 70   65
Total Assets 22,632   19,435
Operating Segments | M&S      
Revenues and Other Income      
Total sales and other operating revenues 20,200 19,641  
Equity in earnings of affiliates 35 36  
Net gain on dispositions 0 1,018  
Other income 62 6  
Total Revenues and Other Income 20,297 20,701  
Costs and Expenses      
Purchased crude oil and products 20,118 19,045  
Operating expenses 19 18  
Selling, general and administrative expenses 297 328  
Depreciation and amortization 20 20  
Impairments 0 0  
Taxes other than income taxes 2 9  
Interest and debt expense 0 0  
Other segment items 2 (1)  
Total Costs and Expenses 20,458 19,419  
Income before income taxes (161) 1,282  
Interest Income 0 0  
Capital Expenditures and Investments 9 15  
Investments In and Advances to Affiliates 1,293   1,330
Total Assets 12,637   10,059
Operating Segments | Renewable Fuels      
Revenues and Other Income      
Total sales and other operating revenues 1,547 1,509  
Equity in earnings of affiliates 0 (1)  
Net gain on dispositions 0 0  
Other income 74 19  
Total Revenues and Other Income 1,621 1,527  
Costs and Expenses      
Purchased crude oil and products 1,498 1,536  
Operating expenses 89 96  
Selling, general and administrative expenses 21 18  
Depreciation and amortization 23 23  
Impairments 2 0  
Taxes other than income taxes 31 35  
Interest and debt expense 0 0  
Other segment items (2) 4  
Total Costs and Expenses 1,662 1,712  
Income before income taxes (41) (185)  
Interest Income 0 0  
Capital Expenditures and Investments 10 9  
Investments In and Advances to Affiliates 15   15
Total Assets 3,182   3,197
Corporate and Other      
Revenues and Other Income      
Total sales and other operating revenues 10 10  
Equity in earnings of affiliates 0 0  
Net gain on dispositions 0 0  
Other income 25 18  
Total Revenues and Other Income 37 30  
Costs and Expenses      
Purchased crude oil and products 1 0  
Operating expenses 37 4  
Selling, general and administrative expenses 113 76  
Depreciation and amortization 26 59  
Impairments 0 25  
Taxes other than income taxes 20 18  
Interest and debt expense 286 221  
Other segment items 5 3  
Total Costs and Expenses 488 406  
Income before income taxes (451) (376)  
Interest Income 31 34  
Capital Expenditures and Investments 10 7  
Investments In and Advances to Affiliates 3   2
Total Assets 7,267   $ 2,918
Intercompany revenues      
Revenues and Other Income      
Total sales and other operating revenues 2 2  
Intercompany revenues | Midstream      
Revenues and Other Income      
Total sales and other operating revenues 806 631  
Intercompany revenues | Chemicals      
Revenues and Other Income      
Total sales and other operating revenues 0 0  
Intercompany revenues | Refining      
Revenues and Other Income      
Total sales and other operating revenues 14,762 10,173  
Intercompany revenues | M&S      
Revenues and Other Income      
Total sales and other operating revenues 656 478  
Intercompany revenues | Renewable Fuels      
Revenues and Other Income      
Total sales and other operating revenues 1,051 781  
Corporate and Other      
Revenues and Other Income      
Total sales and other operating revenues 12 12  
Consolidating Adjustments excluding Corporate      
Revenues and Other Income      
Total sales and other operating revenues 0 0  
Corporate Reconciling Items and Eliminations      
Revenues and Other Income      
Total sales and other operating revenues (17,277) (12,065)  
Consolidating Adjustments      
Revenues and Other Income      
Total sales and other operating revenues (17,277) (12,065)  
Equity in earnings of affiliates 0 0  
Net gain on dispositions 0 0  
Other income (2) 0  
Total Revenues and Other Income (17,279) (12,065)  
Costs and Expenses      
Purchased crude oil and products (17,243) (12,035)  
Operating expenses (36) (30)  
Selling, general and administrative expenses 0 0  
Depreciation and amortization 0 0  
Impairments 0 0  
Taxes other than income taxes 0 0  
Interest and debt expense 0 0  
Other segment items 0 0  
Total Costs and Expenses (17,279) (12,065)  
Income before income taxes $ 0 $ 0