GOODWILL AND INTANGIBLE ASSETS - Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Goodwill [Line Items]
Gross goodwill		$ 5,105
Accumulated impairment losses		(153)
Goodwill [Roll Forward]
Goodwill beginning balance	$ 4,952
Magellan Acquisition measurement period adjustments	165
Interstate natural gas pipeline divestiture	(33)
Goodwill, ending balance	8,091
Magellan Acquisition
Goodwill [Roll Forward]
Magellan Acquisition measurement period adjustments	165
EnLink Controlling Interest Acquisition
Goodwill [Roll Forward]
Acquisitions	2,717
Medallion Acquisition
Goodwill [Roll Forward]
Acquisitions	259
Gulf Coast NGL Pipelines Acquisition
Goodwill [Roll Forward]
Acquisitions	31
Natural Gas Gathering and Processing
Goodwill [Line Items]
Gross goodwill		153
Accumulated impairment losses		(153)
Goodwill [Roll Forward]
Goodwill beginning balance	0
Magellan Acquisition measurement period adjustments	0
Interstate natural gas pipeline divestiture	0
Goodwill, ending balance	486
Natural Gas Gathering and Processing \| EnLink Controlling Interest Acquisition
Goodwill [Roll Forward]
Acquisitions	486
Natural Gas Gathering and Processing \| Medallion Acquisition
Goodwill [Roll Forward]
Acquisitions	0
Natural Gas Gathering and Processing \| Gulf Coast NGL Pipelines Acquisition
Goodwill [Roll Forward]
Acquisitions	0
Natural Gas Liquids
Goodwill [Line Items]
Gross goodwill		371
Accumulated impairment losses		0
Goodwill [Roll Forward]
Goodwill beginning balance	371
Magellan Acquisition measurement period adjustments	0
Interstate natural gas pipeline divestiture	0
Goodwill, ending balance	1,863
Natural Gas Liquids \| EnLink Controlling Interest Acquisition
Goodwill [Roll Forward]
Acquisitions	1,461
Natural Gas Liquids \| Medallion Acquisition
Goodwill [Roll Forward]
Acquisitions	0
Natural Gas Liquids \| Gulf Coast NGL Pipelines Acquisition
Goodwill [Roll Forward]
Acquisitions	31
Natural Gas Pipelines
Goodwill [Line Items]
Gross goodwill		157
Accumulated impairment losses		0
Goodwill [Roll Forward]
Goodwill beginning balance	157
Magellan Acquisition measurement period adjustments	0
Interstate natural gas pipeline divestiture	(33)
Goodwill, ending balance	353
Natural Gas Pipelines \| EnLink Controlling Interest Acquisition
Goodwill [Roll Forward]
Acquisitions	229
Natural Gas Pipelines \| Medallion Acquisition
Goodwill [Roll Forward]
Acquisitions	0
Natural Gas Pipelines \| Gulf Coast NGL Pipelines Acquisition
Goodwill [Roll Forward]
Acquisitions	0
Refined Products and Crude
Goodwill [Line Items]
Gross goodwill		4,424
Accumulated impairment losses		$ 0
Goodwill [Roll Forward]
Goodwill beginning balance	4,424
Magellan Acquisition measurement period adjustments	165
Interstate natural gas pipeline divestiture	0
Goodwill, ending balance	5,389
Refined Products and Crude \| EnLink Controlling Interest Acquisition
Goodwill [Roll Forward]
Acquisitions	541
Refined Products and Crude \| Medallion Acquisition
Goodwill [Roll Forward]
Acquisitions	259
Refined Products and Crude \| Gulf Coast NGL Pipelines Acquisition
Goodwill [Roll Forward]
Acquisitions	$ 0

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