Introduction - Asset Retirement Obligations (Details) - USD ($) $ in Millions |
1 Months Ended | ||
|---|---|---|---|
Sep. 30, 2023 |
Jun. 30, 2023 |
Mar. 06, 2023 |
|
| GEORGIA POWER CO | |||
| Schedule of Asset Retirement Obligation [Line Items] | |||
| Asset retirement obligation, period increase (decrease) | $ 175 | ||
| ALABAMA POWER CO | |||
| Schedule of Asset Retirement Obligation [Line Items] | |||
| Asset retirement obligation, period increase (decrease) | $ 15 | ||
| Plant Vogtle Unit 3 | |||
| Schedule of Asset Retirement Obligation [Line Items] | |||
| Asset retirement obligations | $ 90 | ||