v3.26.1
Segment Information (Depreciation and Amortization) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Depreciation and amortization $ 838 $ 789 $ 1,647 $ 1,582
Renewable Diesel JV depreciation and amortization 23 [1] 23 [1] 45 45
Renewable Diesel        
Segment Reporting [Line Items]        
Renewable Diesel JV depreciation and amortization 23 23 45 45
Operating Segments        
Segment Reporting [Line Items]        
Depreciation and amortization 813 772 1,598 1,547
Operating Segments | Refining & Marketing        
Segment Reporting [Line Items]        
Depreciation and amortization 410 405 797 811
Operating Segments | Midstream        
Segment Reporting [Line Items]        
Depreciation and amortization 387 349 769 700
Operating Segments | Renewable Diesel        
Segment Reporting [Line Items]        
Depreciation and amortization [2] 16 18 32 36
Corporate        
Segment Reporting [Line Items]        
Depreciation and amortization $ 25 $ 17 $ 49 $ 35
[1] Represents MPC’s pro-rata share of expenses from joint ventures included in the Renewable Diesel segment.
[2] Excludes our pro-rata share of Renewable Diesel JV depreciation and amortization, which was adjusted for purposes of arriving at Renewable Diesel segment adjusted EBITDA.