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Intangible Assets and Goodwill, Goodwill (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |
Goodwill | [1] | $ 5,712 | $ 5,608 | $ 5,608
Goodwill related to acquisition | [2] | 104 |  |
Balance at end of period | [1] | 5,712 |  |
NGL Pipelines & Services [Member] |  |  |  |
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |
Goodwill | [1] | 2,840 | 2,811 | 2,811
Goodwill related to acquisition | [2] | 29 |  |
Balance at end of period | [1] | 2,840 |  |
Crude Oil Pipelines & Services [Member] |  |  |  |
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |
Goodwill | [1] | 1,841 | 1,841 | 1,841
Goodwill related to acquisition | [2] | 0 |  |
Balance at end of period | [1] | 1,841 |  |
Natural Gas Pipelines & Services [Member] |  |  |  |
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |
Goodwill | [1] | 75 | 0 | 0
Goodwill related to acquisition | [2] | 75 |  |
Balance at end of period | [1] | 75 |  |
Accumulated impairment charges |  | 296 |  |
Petrochemical & Refined Products Services [Member] |  |  |  |
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |
Goodwill | [1] | 956 | $ 956 | $ 956
Goodwill related to acquisition | [2] | 0 |  |
Balance at end of period | [1] | 956 |  |
Accumulated impairment charges |  | $ 1 |  |
[1] | Balances are presented net of historical accumulated impairment losses of $296 million for the Natural Gas Pipelines & Service segment and $1 million for the Petrochemical & Refined Products Services segment. There have been no goodwill impairment charges recognized for the reporting units within the NGL Pipelines & Services and Crude Oil Pipelines & Services segments.
[2] | This amount represents the goodwill recognized in connection with our acquisition of Pinon Midstream in October 2024. In general, we attribute this goodwill to our ability to expand the acquired sour gas gathering and treating system as well as our ability to leverage the acquired business with our existing NGL asset base to create future business opportunities.

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