Condensed Consolidated Statements of Income (Unaudited) - SPC - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating Revenues:
Total operating revenues	$ 7,206	$ 5,198	$ 13,854	$ 11,108
Operating Expenses:
Other operations and maintenance	1,558	1,438	3,075	2,810
Depreciation and amortization	913	891	1,805	1,762
Taxes other than income taxes	349	313	721	657
Gain on dispositions, net	(10)	(11)	(33)	(54)
Total operating expenses	5,551	4,490	10,815	8,802
Operating Income	1,655	708	3,039	2,306
Other Income and (Expense):
Interest expense, net of amounts capitalized	(488)	(450)	(950)	(901)
Other income (expense), net	139	101	283	160
Total other income and (expense)	(262)	(344)	(483)	(646)
Earnings (Loss) Before Income Taxes	1,393	364	2,556	1,660
Income taxes (benefit)	304	(12)	477	178
Consolidated Net Income	1,089	376	2,079	1,482
Net loss attributable to noncontrolling interests	(22)	0	(67)	(33)
Net Income	1,107	372	2,139	1,508
Retail electric revenues
Operating Revenues:
Total operating revenues	4,789	3,599	8,402	6,941
Wholesale Electric
Operating Revenues:
Total operating revenues	937	546	1,601	1,091
Other electric revenues
Operating Revenues:
Total operating revenues	192	175	370	346
Natural Gas
Operating Revenues:
Total operating revenues	1,083	677	3,140	2,371
Other revenues
Operating Revenues:
Total operating revenues	205	201	341	359
Operating Expenses:
Total cost of sales	114	103	183	185
Fuel
Operating Expenses:
Total cost of sales	1,715	848	2,826	1,696
Purchased power
Operating Expenses:
Total cost of sales	408	217	640	424
SOUTHERN POWER CO
Operating Revenues:
Total operating revenues	899	490	1,438	930
Operating Expenses:
Other operations and maintenance	115	111	220	211
Depreciation and amortization	131	132	251	251
Taxes other than income taxes	12	12	25	24
Gain on dispositions, net	0	0	(2)	(39)
Total operating expenses	763	420	1,252	774
Operating Income	136	70	186	156
Other Income and (Expense):
Interest expense, net of amounts capitalized	(36)	(37)	(73)	(75)
Other income (expense), net	1	1	3	8
Total other income and (expense)	(35)	(36)	(70)	(67)
Earnings (Loss) Before Income Taxes	101	34	116	89
Income taxes (benefit)	25	(2)	13	(11)
Consolidated Net Income	76	36	103	100
Net loss attributable to noncontrolling interests	(22)	0	(67)	(33)
Net Income	98	36	170	133
SOUTHERN POWER CO | Wholesale revenues, non-affiliates
Operating Revenues:
Total operating revenues	658	373	1,084	728
SOUTHERN POWER CO | Wholesale revenues, affiliates
Operating Revenues:
Total operating revenues	232	112	337	193
SOUTHERN POWER CO | Other revenues
Operating Revenues:
Total operating revenues	9	5	17	9
SOUTHERN POWER CO | Fuel
Operating Expenses:
Total cost of sales	437	140	669	281
SOUTHERN POWER CO | Purchased power
Operating Expenses:
Total cost of sales	$ 68	$ 25	$ 89	$ 46