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GOODWILL | 9 Months Ended
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Sep. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
GOODWILL | GOODWILL We have goodwill that resulted from business combinations. The carrying value of goodwill is evaluated for impairment on an annual basis or whenever events or circumstances indicate that the value of goodwill may be impaired. We performed our prior year annual impairment test as of October 1, 2024 and determined that the estimated fair value of each reporting unit exceeded its carrying value, and no impairment existed. We recognized a net increase of $5 million to goodwill during the three and six months ended June 30, 2025 as part of a Midwest Pipeline Acquisition measurement period adjustment in the Pipeline reporting unit. See Note 12, "Acquisition" to the Consolidated Financial Statements. No other additions, impairments or changes occurred during the three and nine months ended September 30, 2025. The following is the summary of the carrying value of goodwill:
| September 30, |  | December 31,
| 2025 |  | 2024
| (millions)
Pipeline | $ | 361 |  |  | $ | 356 |
Gathering | 420 |  |  | 420
Total goodwill | $ | 781 |  |  | $ | 776 |
While we believe the estimates and assumptions in the estimated fair value are reasonable, the actual results may differ from projections. To the extent projected results or cash flows are revised downward, the reporting unit may be required to write down all or a portion of its goodwill, which would adversely impact our earnings.

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