Revenue Recognition (Notes)

12 Months Ended

Dec. 31, 2023

Revenue Recognition [Abstract]

Revenue from Contract with Customer [Text Block]

Revenue Recognition

Revenue by Category

Our revenue disaggregation by major service line includes Natural gas transportation, Natural gas storage, and Other, which are separately presented on the Statement of Net Income.

Contract Assets

The following table presents a reconciliation of our contract assets:

	Year Ended December 31,
	2023		2022
	(Thousands)
Balance at beginning of period	$	12,490	$	7,943
Revenue recognized in excess of amounts invoiced	4,316		4,547
Balance at end of period	$	16,806	$	12,490

Contract Liabilities

The following table presents a reconciliation of our contract liabilities:

	Year Ended December 31,
	2023		2022
	(Thousands)
Balance at beginning of period	$	2,643	$	3,672
Recognized in revenue	(1,175)		(1,029)
Balance at end of period	$	1,468	$	2,643

Remaining Performance Obligations

Our remaining performance obligations primarily include reservation charges on contracted capacity on our firm transportation and storage contracts with customers. Amounts from certain contracts included in the table below, which are subject to periodic review and approval by the FERC, reflect the rates for such services in our current FERC tariffs for the life of the related contracts; however, these rates may change based on future rate cases or settlements approved by the FERC. This table excludes the variable consideration component for commodity charges. Certain of our contracts contain evergreen and other renewal provisions for periods beyond the initial term of the contract. The remaining performance obligations as of December 31, 2023, do not consider potential future performance obligations for which the renewal has not been exercised and exclude contracts with customers for which the underlying facilities have not received FERC authorization to be placed into service.

The following table presents the amount of the contract liabilities balance expected to be recognized as revenue when performance obligations are satisfied and the transaction price allocated to the remaining performance obligations under certain contracts as of December 31, 2023.

	Contract Liabilities		Remaining Performance Obligations
	(Thousands)
2024 (one year)	$	1,178	$	386,252
2025 (one year)	290		369,844
2026 (one year)	—		354,605
2027 (one year)	—		351,285
2028 (one year)	—		345,753
Thereafter	—		2,228,679
Total	$	1,468	$	4,036,418

Accounts Receivable

Receivables from contracts with customers are included within Receivables - Trade and Receivables - Affiliates and receivables that are not related to contracts with customers are included within the balance of Receivables - Advances to affiliate and Receivables - Other in our Balance Sheet.