Condensed Consolidated Statements of Income (Unaudited) - Southern - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating Revenues:
Total operating revenues	$ 6,980	$ 8,378	$ 19,208	$ 22,232
Operating Expenses:
Other operations and maintenance	1,424	1,527	4,352	4,568
Depreciation and amortization	1,143	922	3,365	2,728
Taxes other than income taxes	341	352	1,076	1,073
Estimated loss on Plant Vogtle Units 3 and 4	160	(70)	160	(18)
Total operating expenses	4,870	6,185	14,589	17,000
Operating Income	2,110	2,193	4,619	5,232
Other Income and (Expense):
Allowance for equity funds used during construction	66	59	200	163
Earnings from equity method investments	32	28	110	109
Interest expense, net of amounts capitalized	(620)	(511)	(1,812)	(1,461)
Other income (expense), net	141	132	428	414
Total other income and (expense)	(381)	(292)	(1,074)	(775)
Earnings Before Income Taxes	1,729	1,901	3,545	4,457
Income taxes	297	414	492	891
Net Income	1,432	1,487	3,053	3,566
Dividends on preferred stock of subsidiaries	0	3	0	10
Net income (loss) attributable to noncontrolling interests	10	12	(68)	(55)
Net Income	$ 1,422	$ 1,472	$ 3,121	$ 3,611
Earnings per share -
Basic (in dollars per share)	$ 1.30	$ 1.36	$ 2.86	$ 3.38
Diluted (in dollars per share)	$ 1.29	$ 1.35	$ 2.84	$ 3.36
Average number of shares of common stock outstanding — (in millions)
Basic (in shares)	1,092	1,082	1,092	1,070
Diluted (in shares)	1,099	1,088	1,098	1,076
Retail electric revenues
Operating Revenues:
Total operating revenues	$ 5,139	$ 5,961	$ 12,597	$ 14,363
Wholesale electric revenues
Operating Revenues:
Total operating revenues	727	1,197	1,930	2,798
Other electric revenues
Operating Revenues:
Total operating revenues	203	185	602	554
Natural Gas
Operating Revenues:
Total operating revenues	689	857	3,417	3,998
Other revenues
Operating Revenues:
Total operating revenues	222	178	662	519
Operating Expenses:
Total cost of sales	126	92	381	275
Fuel
Operating Expenses:
Total cost of sales	1,367	2,423	3,376	5,249
Purchased power
Operating Expenses:
Total cost of sales	207	645	680	1,285
Natural gas
Operating Expenses:
Total cost of sales	$ 102	$ 294	$ 1,199	$ 1,840