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Reportable Segments - Assets (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Assets	$ 70,702	$ 71,020
Corporate, Non-segment
Segment Reporting Information [Line Items]
Assets	621	624
Natural Gas Pipelines | Operating Segments
Segment Reporting Information [Line Items]
Assets	49,702	49,883
Products Pipelines | Operating Segments
Segment Reporting Information [Line Items]
Assets	8,674	8,781
Terminals | Operating Segments
Segment Reporting Information [Line Items]
Assets	8,164	8,235
CO2 | Operating Segments
Segment Reporting Information [Line Items]
Assets	$ 3,541	$ 3,497

X

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Amount of asset recognized for present right to economic benefit.

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