Consolidated Statements of Stockholders' Equity - SPC - USD ($) $ in Millions	Total	Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests	Southern Power		Southern Power Total Common Stockholder's Equity		Southern Power Paid-In Capital		Southern Power Retained Earnings	Southern Power Accumulated Other Comprehensive Income (Loss)	Southern Power Noncontrolling Interests
Beginning balance at Dec. 31, 2019	$ 31,759	$ 11,734	$ 10,877	$ (321)	$ 4,254	$ 6,622		$ 2,368		$ 909		$ 1,485	$ (26)	$ 4,254
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	3,103					207		238				238		(31)
Capital contributions from parent company						2		2		2
Other comprehensive income (loss)	(75)			(75)		(42)		(42)					(42)
Cash dividends on common stock	(2,685)		(2,685)			(201)		(201)				(201)
Contributions from noncontrolling interests	307				307	307								307
Distributions to noncontrolling interests	(271)				(271)	(271)								(271)
Purchase of membership interests from noncontrolling interests		5				60				5
Purchase of membership interests from noncontrolling interests	(60)				(65)	60		(5)						65
Sale of noncontrolling interests	65	(2)			67	65	[1]	(2)	[1]	(2)	[1]			67	[1]
Other	(12)	(10)		(1)	1	2		1					1	1
Ending balance at Dec. 31, 2020	32,234	11,834	11,311	(395)	4,262	6,631		2,369		914		1,522	(67)	4,262
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	2,309					167		266				266		(99)
Return of capital to parent company						(271)		(271)		(271)
Capital contributions from parent company						10		10		10
Other comprehensive income (loss)	158			158		40		40					40
Cash dividends on common stock	(2,777)		(2,777)			(204)		(204)				(204)
Contributions from noncontrolling interests	590				590	590								590
Distributions to noncontrolling interests	(351)				(351)	(351)								(351)
Purchase of membership interests from noncontrolling interests						0
Other	(7)	(8)	2			(14)		(14)		15		(1)		0
Ending balance at Dec. 31, 2021	32,276	11,950	10,929	(237)	4,402	6,598		2,196		638		1,585	(27)	4,402
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	3,428					247		354				354		(107)
Capital contributions from parent company						431		431		431
Other comprehensive income (loss)	71			71		10		10					10
Cash dividends on common stock	(2,907)		(2,907)			(198)		(198)				(198)
Contributions from noncontrolling interests	88				88	88								88
Distributions to noncontrolling interests	(259)				(259)	(259)								(259)
Purchase of membership interests from noncontrolling interests						0
Other	(6)	9	(8)	(1)		(1)		(1)					(1)	0
Ending balance at Dec. 31, 2022	$ 34,532	$ 13,673	$ 11,538	$ (167)	$ 4,124	$ 6,916		$ 2,792		$ 1,069		$ 1,741	$ (18)	$ 4,124

[1] See Note 15 under "Southern Power" for additional information.