Consolidated Statements of Income - Southern - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Revenues:
Total operating revenues	$ 25,253	$ 29,279	$ 23,113
Operating Expenses:
Other operations and maintenance	6,093	6,573	5,902
Depreciation and amortization	4,525	3,663	3,565
Taxes other than income taxes	1,425	1,411	1,290
Estimated loss on Plant Vogtle Units 3 and 4	(68)	183	1,692
Impairment charges	0	251	2
Total operating expenses	19,427	23,909	19,415
Operating Income	5,826	5,370	3,698
Other Income and (Expense):
Allowance for equity funds used during construction	268	224	190
Earnings from equity method investments	144	151	76
Interest expense, net of amounts capitalized	(2,446)	(2,022)	(1,837)
Other income (expense), net	553	500	449
Total other income and (expense)	(1,481)	(1,147)	(1,122)
Earnings Before Income Taxes	4,345	4,223	2,576
Income taxes (benefit)	496	795	267
Net Income	3,849	3,428	2,309
Dividends on preferred stock of subsidiaries	0	11	15
Net loss attributable to noncontrolling interests	(127)	(107)	(99)
Consolidated Net Income	$ 3,976	$ 3,524	$ 2,393
Earnings per share —
Basic (in dollars per share)	$ 3.64	$ 3.28	$ 2.26
Diluted (in dollars per share)	$ 3.62	$ 3.26	$ 2.24
Average number of shares of common stock outstanding — (in millions)
Basic (in shares)	1,092	1,075	1,061
Diluted (in shares)	1,098	1,081	1,068
Retail electric revenues
Operating Revenues:
Total operating revenues	$ 16,343	$ 18,197	$ 14,852
Wholesale electric revenues
Operating Revenues:
Total operating revenues	2,467	3,641	2,455
Other electric revenues
Operating Revenues:
Total operating revenues	792	747	718
Natural Gas
Operating Revenues:
Total operating revenues	4,702	5,962	4,380
Other revenues
Operating Revenues:
Total operating revenues	949	732	708
Operating Expenses:
Cost of sales	560	396	357
Fuel
Operating Expenses:
Cost of sales	4,365	6,835	4,010
Purchased power
Operating Expenses:
Cost of sales	883	1,593	978
Natural gas
Operating Expenses:
Cost of sales	$ 1,644	$ 3,004	$ 1,619