v3.26.3
Segment Information (Depreciation and Amortization) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Depreciation and amortization $ 836 $ 841 $ 2,483 $ 2,423
Renewable Diesel JV depreciation and amortization 23 [1] 22 [1] 68 67
Renewable Diesel        
Segment Reporting [Line Items]        
Renewable Diesel JV depreciation and amortization 23 22 68 67
Operating Segments        
Segment Reporting [Line Items]        
Depreciation and amortization 810 812 2,408 2,359
Operating Segments | Refining & Marketing        
Segment Reporting [Line Items]        
Depreciation and amortization 397 426 1,194 1,237
Operating Segments | Midstream        
Segment Reporting [Line Items]        
Depreciation and amortization 397 369 1,166 1,069
Operating Segments | Renewable Diesel        
Segment Reporting [Line Items]        
Depreciation and amortization [2] 16 17 48 53
Corporate        
Segment Reporting [Line Items]        
Depreciation and amortization $ 26 $ 29 $ 75 $ 64
[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.