Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions		12 Months Ended
	Nov. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 14, 2023
Finite-Lived Intangible Assets [Line Items]
Goodwill		$ 463	$ 0	$ 0
Finite-Lived Intangible Assets, Gross		10,510	10,338
Finite-Lived Intangible Assets, Accumulated Amortization		(3,380)	(2,975)
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		10,237	10,065
Finite-Lived Intangible Assets, Accumulated Amortization		$ (3,155)	(2,801)
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		30 years
Amortization of Intangible Assets		$ 360	353	332
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months		368
Finite-Lived Intangible Assets, Amortization Expense, Year Two		368
Finite-Lived Intangible Assets, Amortization Expense, Year Three		364
Finite-Lived Intangible Assets, Amortization Expense, Year Four		360
Finite-Lived Intangible Assets, Amortization Expense, Year Five		360
Transportation and Storage Capacity [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		267	267
Finite-Lived Intangible Assets, Accumulated Amortization		(223)	(172)
Amortization of Intangible Assets		51	158	14
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months		21
Finite-Lived Intangible Assets, Amortization Expense, Year Two		10
Finite-Lived Intangible Assets, Amortization Expense, Year Three		7
Finite-Lived Intangible Assets, Amortization Expense, Year Four		4
Finite-Lived Intangible Assets, Amortization Expense, Year Five		2
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		6	6
Finite-Lived Intangible Assets, Accumulated Amortization		(2)	(2)
MountainWestAcquisition
Finite-Lived Intangible Assets [Line Items]
Goodwill					$ 400
Goodwill, Period Increase (Decrease)		400
Cureton Acquisition
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 6
Goodwill, Period Increase (Decrease)		6
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	20 years
RMM Acquisition
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 57
Goodwill, Period Increase (Decrease)		57
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	20 years
Transmission And Gulf Of Mexico [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill		400	0	0
Transmission And Gulf Of Mexico [Member] | MountainWestAcquisition
Finite-Lived Intangible Assets [Line Items]
Goodwill, Period Increase (Decrease)		400
West [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill		63	$ 0	$ 0
West [Member] | Cureton Acquisition
Finite-Lived Intangible Assets [Line Items]
Goodwill, Period Increase (Decrease)		6
West [Member] | RMM Acquisition
Finite-Lived Intangible Assets [Line Items]
Goodwill, Period Increase (Decrease)		$ 57