v3.26.1
Segment Information (Segment Expenses) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Costs and expenses $ 33,164 $ 31,163
Operating Segments | Refining & Marketing    
Segment Reporting Information [Line Items]    
Cost of purchases 27,435 25,658
Operating costs 1,599 1,472
Distribution costs 1,581 1,478
Other segment items [1] 341 405
Costs and expenses 30,956 29,013
Operating Segments | Midstream    
Segment Reporting Information [Line Items]    
Other segment items [2] 1,433 1,399
Costs and expenses 1,433 1,399
Operating Segments | Renewable Diesel    
Segment Reporting Information [Line Items]    
Operating costs 67 70
Distribution costs 28 22
Other segment items [3] 417 592
Costs and expenses $ 512 $ 684
[1] Other segment items for the Refining & Marketing segment include costs that are reimbursed by customers through commercial arrangements, as well as LIFO inventory adjustments.
[2] Other segment items for the Midstream segment include operating expenses and purchased product costs. For purposes of managing the Midstream segment, the CODM is only provided consolidated Midstream expense information.
[3] Other segment items for the Renewable Diesel segment include purchased product costs.