Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions	Total	Cumulative-effect of changes in accounting principles	Preferred Stock	Common Stock	Retained Earnings	Retained Earnings Cumulative-effect of changes in accounting principles	AOCI	Total Shareholders' Equity	Total Shareholders' Equity Cumulative-effect of changes in accounting principles	Noncontrolling Interests	Noncontrolling Interests Cumulative-effect of changes in accounting principles
Beginning balance at Dec. 31, 2020	$ 26,461	$ (437)	$ 2,387	$ 21,258	$ 4,189	$ (660)	$ (1,717)	$ 26,117	$ (660)	$ 344	$ 223
Beginning balance (in shares) at Dec. 31, 2020			2	806
Net income (loss) including noncontrolling interests	3,419				3,399			3,399		20
Issuance of stock	1,332		$ 992	$ 340				1,332
Issuance of stock (in shares)			1	4
Stock awards (net of change in unearned compensation)	28			$ 28				28
Preferred stock dividends (See Note 19)	(68)				(68)			(68)
Common dividends and distributions	(2,083)				(2,036)			(2,036)		(47)
Other comprehensive income, net of tax	259						259	259
Reclassification of Series A Preferred Stock to Mezzanine Equity	(1,610)		$ (1,596)	(14)				(1,610)
Reclassification of Series A Preferred Stock to Mezzanine Equity (in shares)			(1)
Sale of non-wholly-owned nonregulated solar facilities	(540)									(540)
Other	(2)			(2)				(2)
Ending balance at Dec. 31, 2021	26,759		$ 1,783	$ 21,610	4,824		(1,458)	26,759		0
Ending Balance (in shares) at Dec. 31, 2021			2	810
Net income (loss) including noncontrolling interests	1,321				1,321			1,321
Issuance of stock	1,969			$ 1,969				1,969
Issuance of stock (in shares)				25
Stock awards (net of change in unearned compensation)	26			$ 26				26
Preferred stock dividends (See Note 19)	(93)				(93)			(93)
Common dividends and distributions	(2,209)				(2,209)			(2,209)
Other comprehensive income, net of tax	(114)						(114)	(114)
Ending balance at Dec. 31, 2022	27,659		$ 1,783	$ 23,605	3,843		(1,572)	27,659		0
Ending Balance (in shares) at Dec. 31, 2022			2	835
Net income (loss) including noncontrolling interests	1,994				1,994			1,994
Issuance of stock	94			$ 94				94
Issuance of stock (in shares)				2
Stock awards (net of change in unearned compensation)	30			$ 30				30
Stock awards (net of change in unearned compensation) (in shares)				1
Preferred stock dividends (See Note 19)	(81)				(81)			(81)
Common dividends and distributions	(2,233)				(2,233)			(2,233)
Other comprehensive income, net of tax	66						66	66
Other				$ (1)	1
Ending balance at Dec. 31, 2023	$ 27,529		$ 1,783	$ 23,728	$ 3,524		$ (1,506)	$ 27,529		$ 0
Ending Balance (in shares) at Dec. 31, 2023			2	838