Consolidated Statements of Income - SPC - USD ($) $ 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
Total operating expenses	19,427	23,909	19,415
Operating Income	5,826	5,370	3,698
Other Income and (Expense):
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
Net loss attributable to noncontrolling interests	(127)	(107)	(99)
Consolidated Net Income	3,976	3,524	2,393
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
Southern Power
Operating Revenues:
Total operating revenues	2,189	3,369	2,216
Operating Expenses:
Other operations and maintenance	473	482	423
Depreciation and amortization	504	516	517
Taxes other than income taxes	51	49	45
Loss on sales-type leases	0	1	40
Gain on dispositions, net	(20)	(2)	(41)
Total operating expenses	1,830	2,971	1,925
Operating Income	359	398	291
Other Income and (Expense):
Interest expense, net of amounts capitalized	(129)	(138)	(147)
Other income (expense), net	12	7	10
Total other income and (expense)	(117)	(131)	(137)
Earnings Before Income Taxes	242	267	154
Income taxes (benefit)	12	20	(13)
Net Income	230	247	167
Net loss attributable to noncontrolling interests	(127)	(107)	(99)
Consolidated Net Income	357	354	266
Southern Power | Wholesale revenues, non-affiliates
Operating Revenues:
Total operating revenues	1,597	2,458	1,671
Southern Power | Other revenues
Operating Revenues:
Total operating revenues	55	36	30
Southern Power | Fuel
Operating Expenses:
Cost of sales	706	1,614	802
Southern Power | Purchased power
Operating Expenses:
Cost of sales	$ 116	$ 311	$ 139