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Supplementary Financial Information - Schedule of Cash Flow, Supplemental Disclosures (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Supplementary Financial Information [Abstract] |  |  |  |
Cash and cash equivalents | $ 3,485 | $ 455 |  |
Restricted cash included in current assets | 40 | 37 |  |
Restricted cash included in noncurrent assets | 14 | 33 |  |
Total cash, cash equivalents and restricted cash | 3,539 | 525 | $ 1,359 | $ 444
Cash payments related to: |  |  |  |
Interest paid | 636 | 581 | 482 |
Capitalized interest | (37) | (29) | (26) |
Interest paid (net of capitalized interest) | 599 | 552 | 456 |
Non-cash investing and financing activities: |  |  |  |
Accrued property, plant and equipment additions | 104 | 103 | 171 |
Book value of nuclear fuel sold | $ 26 | $ 0 | $ 0 |

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