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Reportable Segments Other, net-income(expense) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |
Other, net-income (expense) | $ (37) | $ 55 | $ 282
Operating Segments | Natural Gas Pipelines |  |  |
Segment Reporting Information [Line Items] |  |  |
Other, net-income (expense) | 26 | (19) | 216
Operating Segments | Products Pipelines |  |  |
Segment Reporting Information [Line Items] |  |  |
Other, net-income (expense) | 1 | 0 | 1
Operating Segments | Terminals |  |  |
Segment Reporting Information [Line Items] |  |  |
Other, net-income (expense) | 8 | 8 | 3
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Other, net-income (expense) | $ (72) | $ 66 | $ 62

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- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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