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Debt and Banking Arrangements | 9 Months Ended
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Sep. 30, 2025
Debt Disclosure [Abstract] |
Debt and Banking Arrangements [Text Block] | Note 7 – Debt and Banking Arrangements 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%
Retirements 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%
September 15, 2025 |  | September 15, 2025 |  | 750 |  |  | 4.000%
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.
| September 30, 2025
| Stated Capacity |  | Outstanding
| (Millions)
Long-term credit facility (1) | $ | 3,750 |  |  | $ | — |
Letters of credit under certain bilateral bank agreements |  |  | 15 |
________________ (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. Commercial Paper Program At September 30, 2025, $170 million of commercial paper was outstanding at a weighted-average interest rate of 4.25 percent under Williams’ $3.5 billion commercial paper program.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A Reference 2: http://www.xbrl.org/2003/role/disclosureRef 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