Property, Plant and Equipment (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
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|---|---|---|---|---|
| Public Utility, Property, Plant and Equipment [Line Items] | ||||
| Common and other property | $ 1,507 | $ 1,450 | ||
| Plant to be retired | [1] | 521 | 554 | |
| Construction work in progress | 2,159 | 1,522 | ||
| Total property, plant and equipment | 30,370 | 29,216 | ||
| Less accumulated depreciation | (9,057) | (8,753) | ||
| Nuclear fuel | 3,623 | 3,491 | ||
| Less accumulated amortization | (3,149) | (3,094) | ||
| Property, plant and equipment, net | 21,787 | 20,860 | ||
| Electric plant | ||||
| Public Utility, Property, Plant and Equipment [Line Items] | ||||
| Plant | 23,678 | 23,218 | ||
| Natural gas plant | ||||
| Public Utility, Property, Plant and Equipment [Line Items] | ||||
| Plant | $ 2,505 | $ 2,472 | ||
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