Balance Sheets - APC (Parenthetical) - $ / shares	Dec. 31, 2023	Dec. 31, 2022
Common Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 5	$ 5
Common stock, shares authorized (in shares)	1,500,000,000	1,500,000,000
Alabama Power
Common Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 40	$ 40
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares outstanding (in shares)	31,000,000	31,000,000