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Investments in Unconsolidated Affiliates (Tables) | 9 Months Ended
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Sep. 30, 2025
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of Investments and Equity in Income of Unconsolidated Affiliates by Business Segment | The following table presents our investments in unconsolidated affiliates by business segment at the dates indicated. We account for these investments using the equity method.
| September 30, 2025 |  | December 31, 2024
NGL Pipelines & Services | $ | 573 |  |  | $ | 598 |
Crude Oil Pipelines & Services | 1,595 |  |  | 1,628 |
Natural Gas Pipelines & Services | 31 |  |  | 30 |
Petrochemical & Refined Products Services | 2 |  |  | 3 |
Total | $ | 2,201 |  |  | $ | 2,259 |
The following table presents our equity in income of unconsolidated affiliates by business segment for the periods indicated:
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
NGL Pipelines & Services | $ | 21 |  |  | $ | 27 |  |  | $ | 59 |  |  | $ | 84 |
Crude Oil Pipelines & Services | 68 |  |  | 70 |  |  | 212 |  |  | 212 |
Natural Gas Pipelines & Services | 2 |  |  | 2 |  |  | 4 |  |  | 5 |
Petrochemical & Refined Products Services | (1) |  |  | – |  |  | 1 |  |  | 1 |
Total | $ | 90 |  |  | $ | 99 |  |  | $ | 276 |  |  | $ | 302 |

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 + Details
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