Regulatory Matters - GPC Fuel Cost Recovery (Details) $ in Millions	May 16, 2023 USD ($)
Public Utilities, General Disclosures [Line Items]
Under recovered fuel balance to be recovered	$ 2,200
GEORGIA POWER CO
Public Utilities, General Disclosures [Line Items]
Requested revenues increase (decrease) percentage	54.00%
Requested rate increase (decrease) amount	$ 1,100
Under recovered fuel balance to be recovered, period of recovery	3 years
GEORGIA POWER CO \| Maximum
Public Utilities, General Disclosures [Line Items]
Approved rate increase, percentage	40.00%
Approved rate increase (decrease)	$ 200

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Amount of public utility's approved rate increase (decrease) by regulatory agency.

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