Condensed Consolidated Statements of Comprehensive Income (Unaudited) - SPC - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net income	$ 1,535	$ 1,432	$ 3,794	$ 3,053
Qualifying hedges:
Changes in fair value, net of tax	(2)	2	(5)	(34)
Reclassification adjustment for amounts included in net income, net of tax	(8)	36	39	70
Pension and other postretirement benefit plans:
Benefit plan net gain (loss), net of tax	0	0	3	0
Total other comprehensive income (loss)	(9)	38	38	37
Comprehensive Income	1,526	1,470	3,832	3,090
Comprehensive income (loss) attributable to noncontrolling interests	0	10	(73)	(68)
Consolidated Comprehensive Income Attributable to Company	1,526	1,460	3,905	3,158
SOUTHERN POWER CO
Net income	82	110	191	220
Qualifying hedges:
Changes in fair value, net of tax	10	(13)	(5)	(17)
Reclassification adjustment for amounts included in net income, net of tax	(14)	17	5	24
Pension and other postretirement benefit plans:
Benefit plan net gain (loss), net of tax	0	0	1	0
Total other comprehensive income (loss)	(4)	4	1	7
Comprehensive Income	78	114	192	227
Comprehensive income (loss) attributable to noncontrolling interests	0	10	(73)	(68)
Consolidated Comprehensive Income Attributable to Company	$ 78	$ 104	$ 265	$ 295