Consolidated Statements of Income - Southern - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Revenues:
Total operating revenues	$ 29,279	$ 23,113	$ 20,375
Operating Expenses:
Other operations and maintenance	6,630	6,088	5,413
Depreciation and amortization	3,663	3,565	3,518
Taxes other than income taxes	1,411	1,290	1,234
Estimated loss on Plant Vogtle Units 3 and 4	183	1,692	325
Impairment charges	251	2	0
Gain on dispositions, net	(57)	(186)	(65)
Total operating expenses	23,909	19,415	15,490
Operating Income	5,370	3,698	4,885
Other Income and (Expense):
Allowance for equity funds used during construction	224	190	149
Earnings from equity method investments	151	76	153
Interest expense, net of amounts capitalized	(2,022)	(1,837)	(1,821)
Impairment of leveraged leases	0	(7)	(206)
Other income (expense), net	500	456	336
Total other income and (expense)	(1,147)	(1,122)	(1,389)
Earnings Before Income Taxes	4,223	2,576	3,496
Income taxes (benefit)	795	267	393
Net Income	3,428	2,309	3,103
Dividends on preferred stock of subsidiaries	11	15	15
Net loss attributable to noncontrolling interests	(107)	(99)	(31)
Consolidated Net Income	$ 3,524	$ 2,393	$ 3,119
Earnings per share —
Basic (in dollars per share)	$ 3.28	$ 2.26	$ 2.95
Diluted (in dollars per share)	$ 3.26	$ 2.24	$ 2.93
Average number of shares of common stock outstanding — (in millions)
Basic (in shares)	1,075	1,061	1,058
Diluted (in shares)	1,081	1,068	1,065
Retail electric revenues
Operating Revenues:
Total operating revenues	$ 18,197	$ 14,852	$ 13,643
Wholesale electric revenues
Operating Revenues:
Total operating revenues	3,641	2,455	1,945
Other electric revenues
Operating Revenues:
Total operating revenues	747	718	672
Natural Gas
Operating Revenues:
Total operating revenues	5,962	4,380	3,434
Natural gas
Operating Expenses:
Cost of sales	3,004	1,619	972
Other revenues
Operating Revenues:
Total operating revenues	732	708	681
Operating Expenses:
Cost of sales	396	357	327
Fuel
Operating Expenses:
Cost of sales	6,835	4,010	2,967
Purchased power
Operating Expenses:
Cost of sales	$ 1,593	$ 978	$ 799