Debt and Banking Arrangements (Tables)

6 Months Ended

Jun. 30, 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)
June 30, 2025	June 30, 2030	$	750	4.625%
June 30, 2025	September 30, 2035	750		5.300%
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. In the second quarter of 2025, the maturity date of our Credit Agreement was extended one year and now expires October 8, 2028. 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.

	June 30, 2025
	Stated Capacity		Outstanding
	(Millions)
Long-term credit facility (1)	$	3,750	$	—
Letters of credit under certain bilateral bank agreements			15

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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.