Consolidated Statements of Income - SPC - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Revenues:
Total operating revenues	$ 26,724	$ 25,253	$ 29,279
Operating Expenses:
Other operations and maintenance	6,539	6,093	6,824
Depreciation and amortization	4,755	4,525	3,663
Taxes other than income taxes	1,540	1,425	1,411
Total operating expenses	19,656	19,427	23,909
Operating Income	7,068	5,826	5,370
Other Income and (Expense):
Interest expense, net of amounts capitalized	(2,743)	(2,446)	(2,022)
Other income (expense), net	530	553	500
Total other income and (expense)	(1,839)	(1,481)	(1,147)
Earnings Before Income Taxes	5,229	4,345	4,223
Income taxes (benefit)	969	496	795
Net Income	4,260	3,849	3,428
Net loss attributable to noncontrolling interests	(141)	(127)	(107)
Consolidated Net Income	4,401	3,976	3,524
Other revenues
Operating Revenues:
Total operating revenues	1,151	949	732
Operating Expenses:
Cost of sales	668	560	396
Fuel
Operating Expenses:
Cost of sales	4,096	4,365	6,835
Purchased power
Operating Expenses:
Cost of sales	883	883	1,593
Southern Power
Operating Revenues:
Total operating revenues	2,014	2,189	3,369
Operating Expenses:
Other operations and maintenance	516	473	483
Depreciation and amortization	522	504	516
Taxes other than income taxes	41	51	49
Gain on dispositions, net	0	(20)	(2)
Total operating expenses	1,736	1,830	2,971
Operating Income	278	359	398
Other Income and (Expense):
Interest expense, net of amounts capitalized	(117)	(129)	(138)
Other income (expense), net	13	12	7
Total other income and (expense)	(104)	(117)	(131)
Earnings Before Income Taxes	174	242	267
Income taxes (benefit)	(13)	12	20
Net Income	187	230	247
Net loss attributable to noncontrolling interests	(141)	(127)	(107)
Consolidated Net Income	328	357	354
Southern Power | Wholesale revenues, non-affiliates
Operating Revenues:
Total operating revenues	1,606	1,597	2,458
Southern Power | Wholesale revenues, affiliates
Operating Revenues:
Total operating revenues	371	537	875
Southern Power | Other revenues
Operating Revenues:
Total operating revenues	37	55	36
Southern Power | Fuel
Operating Expenses:
Cost of sales	579	706	1,614
Southern Power | Purchased power
Operating Expenses:
Cost of sales	$ 78	$ 116	$ 311