Condensed Consolidated Statements of Income (Unaudited) - Southern - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating Revenues:
Total operating revenues	$ 5,748	$ 7,206	$ 12,228	$ 13,854
Operating Expenses:
Other operations and maintenance	1,489	1,548	2,929	3,042
Depreciation and amortization	1,112	913	2,222	1,805
Taxes other than income taxes	340	349	734	721
Estimated loss on Plant Vogtle Units 3 and 4	0	52	0	52
Total operating expenses	4,458	5,551	9,719	10,815
Operating Income	1,290	1,655	2,509	3,039
Other Income and (Expense):
Allowance for equity funds used during construction	70	53	135	104
Earnings from equity method investments	29	34	78	80
Interest expense, net of amounts capitalized	(610)	(488)	(1,192)	(950)
Other income (expense), net	142	139	286	283
Total other income and (expense)	(369)	(262)	(693)	(483)
Earnings Before Income Taxes	921	1,393	1,816	2,556
Income taxes (benefit)	98	304	194	477
Net Income	823	1,089	1,622	2,079
Dividends on preferred stock of subsidiaries	0	4	0	7
Net loss attributable to noncontrolling interests	(15)	(22)	(78)	(67)
Net Income	$ 838	$ 1,107	$ 1,700	$ 2,139
Earnings per share -
Basic (in dollars per share)	$ 0.77	$ 1.04	$ 1.56	$ 2.01
Diluted (in dollars per share)	$ 0.76	$ 1.03	$ 1.55	$ 2.00
Average number of shares of common stock outstanding — (in millions)
Basic (in shares)	1,092	1,065	1,092	1,064
Diluted (in shares)	1,098	1,072	1,098	1,070
Retail electric revenues
Operating Revenues:
Total operating revenues	$ 3,859	$ 4,789	$ 7,458	$ 8,402
Wholesale electric revenues
Operating Revenues:
Total operating revenues	605	937	1,203	1,601
Other electric revenues
Operating Revenues:
Total operating revenues	209	192	399	370
Natural Gas
Operating Revenues:
Total operating revenues	852	1,083	2,728	3,140
Natural gas
Operating Expenses:
Total cost of sales	199	452	1,097	1,546
Other revenues
Operating Revenues:
Total operating revenues	223	205	440	341
Operating Expenses:
Total cost of sales	128	114	255	183
Fuel
Operating Expenses:
Total cost of sales	959	1,715	2,009	2,826
Purchased power
Operating Expenses:
Total cost of sales	$ 231	$ 408	$ 473	$ 640