Condensed Consolidated Statements of Income (Unaudited) - SPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating Revenues:
Total operating revenues	$ 6,480	$ 6,648
Operating Expenses:
Other operations and maintenance	1,482	1,516
Depreciation and amortization	1,111	892
Taxes other than income taxes	394	372
Gain on dispositions, net	(42)	(23)
Total operating expenses	5,262	5,264
Operating Income	1,218	1,384
Other Income and (Expense):
Interest expense, net of amounts capitalized	(582)	(462)
Other income (expense), net	147	145
Total other income and (expense)	(322)	(220)
Earnings Before Income Taxes	896	1,164
Income taxes (benefit)	97	173
Net Income	799	991
Net loss attributable to noncontrolling interests	(63)	(45)
Retail electric revenues
Operating Revenues:
Total operating revenues	3,599	3,613
Wholesale Electric
Operating Revenues:
Total operating revenues	599	664
Other electric revenues
Operating Revenues:
Total operating revenues	190	177
Natural Gas
Operating Revenues:
Total operating revenues	1,875	2,058
Other revenues
Operating Revenues:
Total operating revenues	217	136
Operating Expenses:
Total cost of sales	127	69
Fuel
Operating Expenses:
Total cost of sales	1,050	1,111
Purchased power
Operating Expenses:
Total cost of sales	242	232
SOUTHERN POWER CO
Operating Revenues:
Total operating revenues	508	539
Operating Expenses:
Other operations and maintenance	107	105
Depreciation and amortization	128	120
Taxes other than income taxes	13	13
Gain on dispositions, net	(20)	(2)
Total operating expenses	445	489
Operating Income	63	50
Other Income and (Expense):
Interest expense, net of amounts capitalized	(33)	(37)
Other income (expense), net	2	2
Total other income and (expense)	(31)	(35)
Earnings Before Income Taxes	32	15
Income taxes (benefit)	(7)	(12)
Net Income	39	27
Net loss attributable to noncontrolling interests	(63)	(45)
Net Income	102	72
SOUTHERN POWER CO | Wholesale revenues, non-affiliates
Operating Revenues:
Total operating revenues	362	426
SOUTHERN POWER CO | Wholesale revenues, affiliates
Operating Revenues:
Total operating revenues	135	105
SOUTHERN POWER CO | Other revenues
Operating Revenues:
Total operating revenues	11	8
SOUTHERN POWER CO | Fuel
Operating Expenses:
Total cost of sales	191	232
SOUTHERN POWER CO | Purchased power
Operating Expenses:
Total cost of sales	$ 26	$ 21