Regulatory Matters - GPC Other Construction (Details) - GEORGIA POWER CO $ in Billions	6 Months Ended
	Jun. 30, 2025 USD ($) MW
Public Utilities, General Disclosures [Line Items]
Recovery of construction and capital costs | $	$ 1.3
Total certified amounts | $	$ 2.8
McGrau Ford
Public Utilities, General Disclosures [Line Items]
Approximate nameplate capacity	265
Plant Yates Units 8 And 10
Public Utilities, General Disclosures [Line Items]
Approximate nameplate capacity	1,326
Various Facilities
Public Utilities, General Disclosures [Line Items]
Approximate nameplate capacity	500