REGULATORY MATTERS - Nuclear Construction Cost and Schedule (Details) - GEORGIA POWER CO - Plant Vogtle Units 3 And 4 $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2020
USD ($)
| |
| Loss Contingencies [Line Items] | |
| Base project capital cost forecast | $ 8,400 |
| Construction contingency estimate | 100 |
| Total project capital cost forecast | 8,500 |
| Net investment as of September 30, 2019 | (6,600) |
| Remaining estimate to complete | 1,900 |
| Expected capitalized costs | 260 |
| Capitalized interest accrued | $ 52 |