Acquisitions (Details) - USD ($) $ in Millions				2 Months Ended	3 Months Ended			8 Months Ended	12 Months Ended
	Feb. 14, 2023	Aug. 31, 2022	Apr. 29, 2022	Mar. 31, 2023	Mar. 31, 2023		Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2022
Business Acquisition [Line Items]
Revenues					$ 3,081		$ 2,524
Modified EBITDA Earnings Loss					2,130		1,393
Net Income (Loss) Attributable to Parent					927		380
Pro Forma
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue					3,116		2,626
Business Acquisition, Pro Forma Net Income (Loss)					933		411
Transmission And Gulf Of Mexico [Member] | NorTex Acquisition [Member]
Business Acquisition [Line Items]
Payments to Acquire Productive Assets		$ 424
Transmission And Gulf Of Mexico [Member] | Operating Segments [Member]
Business Acquisition [Line Items]
Revenues					1,007		995
Modified EBITDA Earnings Loss					715		697
West [Member] | Operating Segments [Member]
Business Acquisition [Line Items]
Revenues					503		562
Modified EBITDA Earnings Loss					304		260
MountainWest Acquisition
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Business Combination, Consideration Transferred	$ 1,080
Business Combination, Consideration Transferred, Liabilities Incurred	430
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	23
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	14
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other	28
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Investments	22
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	1,092
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	33
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	1,212
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	(38)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-Term Debt	(365)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	(155)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	(558)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	654
Goodwill	400
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	1,054
Business Acquisition, Goodwill, Expected Tax Deductible Amount	$ 400
MountainWest Acquisition | Pro Forma
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue					35	[1]	67
Business Acquisition, Pro Forma Net Income (Loss)					6	[1]	17
MountainWest Acquisition | Transmission And Gulf Of Mexico [Member] | Selling, general, and administrative expenses [Member]
Business Acquisition [Line Items]
Business Combination, Acquisition Related Costs					$ 12
MountainWest Acquisition | Transmission And Gulf Of Mexico [Member] | Operating Segments [Member]
Business Acquisition [Line Items]
Revenues				$ 34
Modified EBITDA Earnings Loss				$ 20
Trace Midstream Acquisition
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Business Combination, Consideration Transferred			$ 972
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents			39
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables			18
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			448
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			472
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets			20
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets			997
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable			(12)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other			(5)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other			(8)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities			(25)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net			$ 972
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			20 years
Percentage Of Finite Lived Intangible Assets Impacted By Our Intent Or Ability To Renew Or Extend Arrangement			2.00%
Acquired Finite-lived Intangible Asset, Weighted-Average Period before Renewal or Extension			19 years
Trace Midstream Acquisition | Pro Forma
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue							35
Business Acquisition, Pro Forma Net Income (Loss)							$ 14
Trace Midstream Acquisition | West [Member] | Selling, general, and administrative expenses [Member]
Business Acquisition [Line Items]
Business Combination, Acquisition Related Costs									$ 8
Trace Midstream Acquisition | West [Member] | Operating Segments [Member]
Business Acquisition [Line Items]
Revenues								$ 148
Modified EBITDA Earnings Loss								$ 73

[1] Excludes results from operations acquired in the MountainWest Acquisition for the period beginning on the acquisition date of February 14, 2023, as these results are included in the amounts as reported.