v3.26.1
Related Party Transactions (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Related Party Transaction [Line Items]    
Sales and other operating revenues [1] $ 34,200 $ 31,517
Purchases from related parties(a) 471 705 [2]
Related Party    
Related Party Transaction [Line Items]    
Sales and other operating revenues $ 238 $ 320
[1] Includes sales to related parties. See Note 6 for additional information. See Note 17 for the disaggregation of our revenue from external customers by segment and product line.
[2] The 2025 period includes purchases of ethanol from TAMH, an equity affiliate, through July 2025. MPC sold its interest in TAMH on July 31, 2025. TAMH ceased to be a related party after the sale. See Note 4.