v3.26.1
Segment Information (Depreciation and Amortization) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]    
Depreciation and amortization $ 809 $ 793
Renewable Diesel JV depreciation and amortization [1] 22 22
Renewable Diesel    
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]    
Renewable Diesel JV depreciation and amortization 22 22
Operating Segments    
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]    
Depreciation and amortization 785 775
Operating Segments | Refining & Marketing    
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]    
Depreciation and amortization 387 406
Operating Segments | Midstream    
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]    
Depreciation and amortization 382 351
Operating Segments | Renewable Diesel    
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]    
Depreciation and amortization [2] 16 18
Corporate    
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]    
Depreciation and amortization $ 24 $ 18
[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.