Mergers, Acquisitions and Divestitures - Schedule of Preliminary Purchase Price Allocation for the Acquisition (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Jun. 01, 2026 |
Dec. 31, 2025 |
|---|---|---|---|
| Business Combination, Recognized Asset Acquired, Asset [Abstract] | |||
| Property, plant and equipment, net | $ 202 | ||
| Accounts receivable, net of allowance for uncollectible accounts | 3 | ||
| Unbilled revenues | 2 | ||
| Regulatory assets | 8 | ||
| Total identifiable assets | 215 | ||
| Liabilities assumed: | |||
| Accounts payable | (3) | ||
| Accrued taxes | (1) | ||
| Other current liabilities | (2) | ||
| Regulatory liabilities | (3) | ||
| Contributions in aid of construction | (13) | ||
| Total liabilities assumed | (22) | ||
| Net identifiable assets acquired | 193 | ||
| Goodwill | $ 1,282 | 126 | $ 1,156 |
| Aggregate purchase price | $ 319 |
| X | ||||||||||
- Definition Amount of asset acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of receivable acquired in business combination and recognized at acquisition date, classified as current. Includes, but is not limited to, receivable from customer for product and service. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of accounts payable assumed in business combination and recognized at acquisition date, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of liability assumed in business combination and recognized at acquisition date, classified as other and current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of financial asset acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of financial liability assumed in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of liability assumed in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of asset acquired in excess of (less than) liability assumed in business combination and recognized at acquisition date. Excludes goodwill. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of property, plant, and equipment acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of asset acquired in excess of (less than) liability assumed plus goodwill in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Accured taxrs. No definition available.
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- Definition Business combination recognized identifiable assets acquired and liabilities assumed contributions in aid of construction. No definition available.
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- Definition Business combination recognized identifiable assets acquired and liabilities assumed unbilled revenues. No definition available.
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