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MAGELLAN ACQUISITION - Goodwill Related To Acquisition (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Goodwill [Line Items] |  |
Gross goodwill |  | $ 681
Accumulated impairment losses |  | (153)
Goodwill [Roll Forward] |  |
Goodwill beginning balance | $ 528 |
Acquisitions | 5,154 |
Goodwill, ending balance | 5,682 |
Natural Gas Gathering and Processing |  |
Goodwill [Line Items] |  |
Gross goodwill |  | 153
Accumulated impairment losses |  | (153)
Goodwill [Roll Forward] |  |
Goodwill beginning balance | 0 |
Acquisitions | 0 |
Goodwill, ending balance | 0 |
Natural Gas Liquids |  |
Goodwill [Line Items] |  |
Gross goodwill |  | 371
Accumulated impairment losses |  | 0
Goodwill [Roll Forward] |  |
Goodwill beginning balance | 371 |
Acquisitions | 0 |
Goodwill, ending balance | 371 |
Natural Gas Pipelines |  |
Goodwill [Line Items] |  |
Gross goodwill |  | 157
Accumulated impairment losses |  | 0
Goodwill [Roll Forward] |  |
Goodwill beginning balance | 157 |
Acquisitions | 0 |
Goodwill, ending balance | 157 |
Refined Products and Crude |  |
Goodwill [Line Items] |  |
Gross goodwill |  | 0
Accumulated impairment losses |  | $ 0
Goodwill [Roll Forward] |  |
Goodwill beginning balance | 0 |
Acquisitions | 5,154 |
Goodwill, ending balance | $ 5,154 |

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