Regulatory Matters - GPC Fuel Cost Recovery (Details) $ in Billions	Feb. 28, 2023 USD ($)
Public Utilities, General Disclosures [Line Items]
Under recovered fuel balance to be recovered	$ 2.2
GEORGIA POWER CO
Public Utilities, General Disclosures [Line Items]
Under recovered fuel balance to be recovered, period of recovery	3 years
Requested revenues increase (decrease) percentage	54.00%
Requested rate increase (decrease) amount	$ 1.1