Property, Plant, and Equipment and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

The following is a summary of Property, plant, and equipment by classification:


	Average Estimated Useful Life	December 31,
		2023		2022
	(years)	(millions)
Property, plant, and equipment
Land and other non-depreciable assets	N/A	$	96	$	97
Rights of way and easements	25 to 40	103		103
Pipelines and interconnects	25 to 40	3,460		2,845
Facilities and processing plants	7 to 40	1,234		998
Wells and well equipment	40 to 70	70		70
General plant	3 to 40	40		32
Construction in progress	N/A	279		389
Total Property, plant, and equipment		$	5,282	$	4,534
Less accumulated depreciation		(848)		(728)
Net Property, plant, and equipment		$	4,434	$	3,806

Schedule of Intangible Assets

The following is a summary of Intangible Assets by classification:


		December 31, 2023						December 31, 2022
	Useful Lives	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
		(millions)
Intangible assets subject to amortization
Customer relationships	25 - 40 years (a)	$	2,252	$	(289)	$	1,963	$	2,252	$	(233)	$	2,019
Contract intangibles	14 - 26 years	18		(13)		5		18		(12)		6
Total		$	2,270	$	(302)	$	1,968	$	2,270	$	(245)	$	2,025

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(a) The useful lives of the customer relationship intangible assets are based on the number of years in which the assets are expected to economically contribute to the business. The expected economic benefit incorporates existing customer contracts and expected renewal rates based on the estimated volume and production lives of natural gas resources in each region.

Schedule of Estimated Intangibles Assets Amortization Expense

The following table summarizes estimated customer relationships and contract intangibles amortization expense to be recognized during each year through 2028:


	2024		2025		2026		2027		2028
	(millions)
Estimated amortization expense	$	57	$	57	$	57	$	57	$	57

Schedule of Depreciation and Amortization

The following is a summary of depreciation and amortization expense by asset type:


	Year Ended December 31,
	2023		2022		2021
	(millions)
Property, plant, and equipment	$	125	$	113	$	108
Customer relationships and other intangible assets, net	57		57		58
Total Depreciation and amortization	$	182	$	170	$	166