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Supplemental Cash Flow Information (Tables) | 6 Months Ended
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Jun. 30, 2026
Supplemental Cash Flow Elements [Abstract] |
Schedule of Cash Flow, Supplemental Disclosures |
| Six Months Ended June 30,
(In millions) | 2026 |  | 2025
Net cash provided by operating activities included: |  |  |
Interest paid (net of amounts capitalized) | $ | 576 |  |  | $ | 451 |
Income taxes paid | 3 |  |  | 3 |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |
Payments on operating leases | 33 |  |  | 32 |
Net cash provided by financing activities included: |  |  |
Principal payments under finance lease obligations | 5 |  |  | 1 |
Non-cash investing and financing activities: |  |  |
Net transfers of property, plant and equipment to lease receivable | 109 |  |  | 86 |
Contribution of assets(1) | — |  |  | 115 |
ROU assets obtained in exchange for new operating lease obligations | 9 |  |  | 20 |
ROU assets obtained in exchange for new finance lease obligations | 4 |  |  | 3 |
(1) Represents the book value of assets contributed by MPLX to a joint venture.
Summary of Reconciliation of Additions to Property, Plant and Equipment to Total Capital Expenditures | The Consolidated Statements of Cash Flows exclude changes to the Consolidated Balance Sheets that do not affect cash. The following is a reconciliation of additions to property, plant and equipment to total capital expenditures:
| Six Months Ended June 30,
(In millions) | 2026 |  | 2025
Additions to property, plant and equipment | $ | 1,400 |  |  | $ | 568 |
Increase in capital accruals | 84 |  |  | 41 |
Total capital expenditures | $ | 1,484 |  |  | $ | 609 |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-3 + Details
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