v3.26.3
Supplemental Cash Flow Information (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Net cash provided by operating activities included:    
Interest paid (net of amounts capitalized) $ 1,225 $ 970
Net income taxes paid to (received from) taxing authorities [1] 1,804 130
Income tax credits and adjustments 186 111
Non-cash investing and financing activities:    
Contribution of assets [2] 0 115
Book value of equity method investment [3] 0 $ 282
Martinez Renewables LLC    
Income Tax Paid, by Individual Jurisdiction [Line Items]    
Payment to Acquire Transferable Tax Credits 64  
Payment to Acquire Transferable Tax Credits $ 64  
[1] ncludes $186 million and $111 million in the nine months ended September 30, 2026 and September 30, 2025, respectively, paid to third parties and related parties for transferable tax credits. The nine months ended September 30, 2026 includes $64 million paid to Martinez Renewables LLC.
[2] Represents the book value of assets contributed by MPLX to a joint venture
[3] Represents the book value of MPLX’s equity method investment in BANGL, prior to MPLX buying out the remaining interest in this entity as part of the BANGL Acquisition. See Note 5 - BANGL, LLC Acquisition.