Balance Sheet Components - Schedule of Net Utility Property Recorded at Original Cost Net of Accumulated Depreciation (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||
| Utility plant in service | $ 8,669 | $ 8,591 |
| Construction work in progress | 426 | 303 |
| Total | 9,095 | 8,894 |
| Less: Accumulated depreciation and amortization | 2,427 | 2,575 |
| Total | $ 6,668 | $ 6,319 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount, before accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Period end book value of accumulated depreciation on property, plant and equipment (PPE) that is owned by the regulated operations of the public utility. No definition available.
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| X | ||||||||||
- Definition Period end amount of construction work in progress in public utility. No definition available.
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- Definition Period end amount of total net PPE. No definition available.
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- Definition Period end amount of total gross PPE. No definition available.
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