Regulatory Matters - APC Renewable Generation Certificate (Details) - ALABAMA POWER CO	1 Months Ended
Apr. 30, 2022 project MW	Jun. 30, 2022 MW
Public Utilities, General Disclosures [Line Items]
Renewable generation certificate, authorized generating capacity (in MWs)		500
Renewable generation certificate, number of projects terminated \| project	1
Renewable generation certificate, capacity restored (in MWs)	80

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