Debt and Banking Arrangements (Tables)

3 Months Ended

Mar. 31, 2025

Debt Disclosure [Abstract]

Schedule of Debt Issuances

Williams’ senior unsecured public debt issuances for 2025 are as follows:

Issue Date	Maturity Date	Amount		Rate
		(Millions)
January 9, 2025	March 15, 2035	$	1,000	5.600%
January 9, 2025	March 15, 2055	500		6.000%

Schedule of Extinguishment of Debt

Williams’ senior unsecured public debt retirements for 2025 are as follows:

Date of Retirement	Maturity Date	Amount		Rate
		(Millions)
January 15, 2025	January 15, 2025	$	750	3.900%

Schedule of Line of Credit Facilities [Table Text Block]

Credit Facility

Williams, Transco and NWP are party to a credit agreement with aggregate commitments available of $3.75 billion. Transco and NWP are each able to borrow up to $500 million under the credit facility to the extent not otherwise utilized by the other co-borrowers.

	March 31, 2025
	Stated Capacity		Outstanding
	(Millions)
Long-term credit facility (1)	$	3,750	$	—
Letters of credit under certain bilateral bank agreements			27

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(1)    In managing its available liquidity, Williams does not expect a maximum outstanding amount in excess of the capacity of its credit facility inclusive of any outstanding amounts under the commercial paper program.