v3.26.3
Related Party Transactions (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Related Party Transaction [Line Items]        
Sales and other operating revenues [1] $ 56,032 $ 34,809 $ 142,226 $ 100,125
Purchases from related parties(a) 864 751 [2] 2,205 2,163 [2]
Related Party        
Related Party Transaction [Line Items]        
Sales and other operating revenues $ 785 $ 390 $ 1,761 $ 1,036
[1] Includes sales to related parties. See Note 7 for additional information. See Note 18 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 5.