Condensed Consolidated Statements of Income (Unaudited) - Southern - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Operating Revenues:
Total operating revenues	$ 6,973	$ 6,463	$ 14,748	$ 13,109
Operating Expenses:
Other operations and maintenance	1,685	1,388	3,305	2,860
Depreciation and amortization	1,323	1,182	2,608	2,327
Taxes other than income taxes	403	384	848	780
Total operating expenses	5,209	4,524	10,974	9,467
Operating Income	1,764	1,939	3,774	3,642
Other Income and (Expense):
Allowance for equity funds used during construction	80	51	153	109
Earnings from equity method investments	10	31	43	77
Interest expense, net of amounts capitalized	(874)	(694)	(1,588)	(1,358)
Other income (expense), net	162	151	310	302
Total other income and (expense)	(622)	(461)	(1,082)	(870)
Earnings Before Income Taxes	1,142	1,478	2,692	2,772
Income taxes	289	290	569	513
Consolidated Net Income	853	1,188	2,123	2,259
Net loss attributable to noncontrolling interests	(27)	(15)	(91)	(73)
Consolidated Net Income Attributable to Southern Company	$ 880	$ 1,203	$ 2,214	$ 2,332
Earnings per share -
Basic (in dollars per share)	$ 0.80	$ 1.10	$ 2.01	$ 2.13
Diluted (in dollars per share)	$ 0.79	$ 1.09	$ 2.00	$ 2.12
Average number of shares of common stock outstanding — (in millions)
Basic (in shares)	1,101	1,096	1,100	1,095
Diluted (in shares)	1,108	1,102	1,107	1,101
Retail electric revenues
Operating Revenues:
Total operating revenues	$ 4,758	$ 4,486	$ 9,358	$ 8,427
Wholesale electric revenues
Operating Revenues:
Total operating revenues	681	627	1,425	1,198
Other electric revenues
Operating Revenues:
Total operating revenues	220	210	463	409
Natural Gas
Operating Revenues:
Total operating revenues	979	831	2,818	2,538
Other revenues
Operating Revenues:
Total operating revenues	335	309	684	537
Operating Expenses:
Total cost of sales	167	167	366	298
Fuel
Operating Expenses:
Total cost of sales	1,116	1,032	2,408	2,028
Purchased power
Operating Expenses:
Total cost of sales	260	222	510	420
Natural gas
Operating Expenses:
Total cost of sales	255	149	929	754
Alternative revenue programs
Operating Revenues:
Total operating revenues	$ (9)	$ 11	$ (28)	$ 45