Number of persons employed by the Entity

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Credit to expenses from affiliates

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Amount of interest income earned from interest-bearing assets owed to the entity by related party.

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Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due within 1 year (or 1 business cycle).

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The distributions of earnings to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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Transactions with Affiliates Related Party Transations (Details) $ in Thousands		1 Months Ended	3 Months Ended
	Mar. 31, 2023 USD ($) employee	Apr. 30, 2023 USD ($)	Mar. 31, 2023 USD ($) employee	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Related Party Transaction [Line Items]
Advances to affiliate	$ 1,763,253		$ 1,763,253		$ 1,813,480
Related party transaction, rate	4.70%
Interest income, related party			19,300
Operating revenues, related party			12,200	$ 21,100
Cost of natural gas sales, related party			$ 3,400	5,400
Entity number of employees \| employee	0		0
Expenses, related party			$ 84,100	79,600
Reduction to operating expenses			2,800	1,600
Cash distributions to parent			310,000	$ 57,548
Williams Companies Inc
Related Party Transaction [Line Items]
Advances to affiliate	$ 1,800,000		$ 1,800,000		$ 1,800,000
Subsequent Event
Related Party Transaction [Line Items]
Cash distributions to parent		$ 310,000