Consolidated Statements of Comprehensive Income - SPC - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Net Income	$ 4,171	$ 4,260	$ 3,849
Qualifying hedges:
Changes in fair value, net of tax	26	(5)	(41)
Reclassification adjustment for amounts included in net income, net of tax	(33)	80	69
Pension and other postretirement benefit plans:
Benefit plan net gain (loss), net of tax	10	23	(39)
Total other comprehensive income (loss)	3	99	(10)
Comprehensive loss attributable to noncontrolling interests	(170)	(141)	(127)
Comprehensive Income	4,344	4,500	3,966
Southern Power
Net Income	(45)	187	230
Qualifying hedges:
Changes in fair value, net of tax	43	(31)	(3)
Reclassification adjustment for amounts included in net income, net of tax	(45)	39	11
Pension and other postretirement benefit plans:
Benefit plan net gain (loss), net of tax	4	7	(7)
Total other comprehensive income (loss)	2	15	1
Comprehensive loss attributable to noncontrolling interests	(170)	(141)	(127)
Comprehensive Income	$ 127	$ 343	$ 358