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Reportable Segments Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Assets	$ 71,020	$ 70,078
Operating Segments | Natural Gas Pipelines
Segment Reporting Information [Line Items]
Assets	49,883	47,978
Operating Segments | Products Pipelines
Segment Reporting Information [Line Items]
Assets	8,781	8,985
Operating Segments | Terminals
Segment Reporting Information [Line Items]
Assets	8,235	8,357
Operating Segments | CO2
Segment Reporting Information [Line Items]
Assets	3,497	3,449
Other
Segment Reporting Information [Line Items]
Assets	$ 624	$ 1,309

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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