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Divestitures | 6 Months Ended
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Jun. 30, 2026
Business Combination [Abstract] |
Divestitures [Text Block] | Note 3 – Divestitures Sale of Permian Interests Consolidated Permian Gathering Assets In June 2026, Williams signed an agreement to sell certain gas gathering assets in the Permian basin within its West segment. This disposal group was classified as held for sale, with the associated assets and liabilities included in Assets held for sale and Liabilities held for sale, respectively, at June 30, 2026. Williams expects to recognize a gain upon closing in the third quarter of 2026. The results of operations for this disposal group were not significant for the reporting periods. Brazos Permian II Equity-Method Investment In June 2026, Williams completed the sale of an equity-method investment in Brazos Permian II, LLC within its West segment for total consideration of $143 million, resulting in the recognition of a $127 million gain reflected in Other investing income (loss) – net. The consideration received consisted primarily of publicly traded limited partner units of the acquirer measured at fair value on the transaction date. The limited partner units are classified as Level 1 within the fair value hierarchy and are remeasured at fair value each reporting period, with changes in fair value recognized in earnings (see Note 7 – Fair Value Measurements and Guarantees). Williams is required to hold the limited partner units for a minimum of six months following closing. Sale of Mid-Continent Gathering Assets In February 2026, Williams closed on the sale of certain gas gathering assets in the Mid-Continent region within its West segment for total consideration of $48 million. This disposal group was classified as held for sale, with the associated assets and liabilities included in Assets held for sale and Liabilities held for sale, respectively, at December 31, 2025 and an impairment was recognized (see Note 7 – Fair Value Measurements and Guarantees). The results of operations for this disposal group were not significant for the reporting periods. Sale of South Mansfield Upstream Interests In October 2025, Williams entered into an agreement to sell its interests in certain upstream ventures in the South Mansfield area of the Haynesville Shale region, included in upstream operations within Other, for consideration of $398 million with additional contingent consideration to possibly be received through 2029. Williams classified this disposal group as held for sale, with the associated assets and liabilities included in Assets held for sale and Liabilities held for sale, respectively, at December 31, 2025. The transaction closed on January 30, 2026, and as a result of the sale Williams recognized a gain of $182 million in the first quarter of 2026 and an additional gain of $12 million in the second quarter of 2026 within Other. The gain is reflected in Gain on sale of certain assets, and the proceeds are reflected in Dispositions – net. The results of operations for this disposal group, excluding the gains noted, were not significant for the reporting periods.

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- Definition The entire disclosure for business combinations, including leverage buyout transactions (as applicable), and divestitures. This may include a description of a business combination or divestiture (or series of individually immaterial business combinations or divestitures) completed during the period, including background, timing, and assets and liabilities recognized and reclassified or sold. This element does not include fixed asset sales and plant closings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/205-20/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/805/tableOfContent + Details
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