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Reportable Segments Investments (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Investments	$ 7,874	$ 7,653
Operating Segments | Natural Gas Pipelines
Segment Reporting Information [Line Items]
Investments	7,273	6,993
Operating Segments | Products Pipelines
Segment Reporting Information [Line Items]
Investments	390	445
Operating Segments | Terminals
Segment Reporting Information [Line Items]
Investments	130	128
Operating Segments | CO2
Segment Reporting Information [Line Items]
Investments	$ 81	$ 87

X

- Definition

The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(12))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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