Condensed Consolidated Statements of Changes in Equity - Progress Energy - USD ($) $ in Millions	Total		Total Equity	Additional Paid-in Capital	Retained Earnings	Net Unrealized Gains (Losses) on Available-for-Sale Securities	Pension and OPEB Adjustments	Noncontrolling Interests	Progress Energy	Progress Energy Total Equity	Progress Energy Additional Paid-in Capital	Progress Energy Retained Earnings	Progress Energy Net Gains (Losses) on Cash Flow Hedges	Progress Energy Net Unrealized Gains (Losses) on Available-for-Sale Securities	Progress Energy Pension and OPEB Adjustments	Progress Energy Noncontrolling Interests
Beginning Balance (Attributable to Parent) at Dec. 31, 2020			$ 47,964	$ 43,767	$ 2,471	$ 6	$ (76)			$ 16,237	$ 9,143	$ 7,109	$ (5)	$ (2)	$ (8)
Beginning Balance (Attributable to Noncontrolling Interest) at Dec. 31, 2020								$ 1,220								$ 4
Beginning Balance (Parent) at Dec. 31, 2020	$ 49,184								$ 16,241
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,579								1,599	1,598		1,598				1
Other comprehensive (loss) income	(56)	[1]	(66)			(8)	7	10	4	4			3		1
Distributions to noncontrolling interests	(66)							(66)	(1)							(1)
Common stock dividends	(3,008)		(3,008)		(3,008)				(700)	(700)		(700)
Other	(8)		(9)	(9)				1	5	6	6					(1)
Ending Balance (Attributable to Parent) at Dec. 31, 2021			49,296	44,371	3,265	(2)	(69)			17,145	9,149	8,007	(2)	(2)	(7)
Ending Balance (Attributable to Noncontrolling Interest) at Dec. 31, 2021								1,840								3
Ending Balance (Parent) at Dec. 31, 2021	51,136								17,148
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,455								1,828	1,828		1,828
Other comprehensive (loss) income	174	[1]	163			(21)	(19)	11	0				1	(6)	5
Distributions to noncontrolling interests	(140)							(140)	(34)							(34)
Common stock dividends	(3,073)		(3,073)		(3,073)				(425)	(425)	(175)	(250)
Equitization of certain notes payable to affiliates									2,907	2,907	2,907
Purchase of a noncontrolling interest									(20)	(51)	(51)					31
Other	3		2	1	1			1	2	2	2
Ending Balance (Attributable to Parent) at Dec. 31, 2022	49,322		49,322	44,862	2,637	(23)	(88)			21,406	11,832	9,585	(1)	(8)	(2)
Ending Balance (Attributable to Noncontrolling Interest) at Dec. 31, 2022	2,531							2,531								0
Ending Balance (Parent) at Dec. 31, 2022	51,853								21,406
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,874								1,956	1,956		1,956
Other comprehensive (loss) income	134	[1]	134			8	(1)		1	1				3	(2)
Distributions to noncontrolling interests	(59)							(59)
Common stock dividends	(3,138)		(3,138)		(3,138)				(500)	(500)		(500)
Other	(2)		(6)	(7)	1			4	(3)	(3)	(2)	(1)
Ending Balance (Attributable to Parent) at Dec. 31, 2023	49,112		$ 49,112	$ 44,920	$ 2,235	$ (15)	$ (89)			$ 22,860	$ 11,830	$ 11,040	$ (1)	$ (5)	$ (4)
Ending Balance (Attributable to Noncontrolling Interest) at Dec. 31, 2023	1,075							$ 1,075								$ 0
Ending Balance (Parent) at Dec. 31, 2023	$ 50,187								$ 22,860

[1] Net of income tax expense of approximately $40 million and $52 million for the years ended December 31, 2023, and 2022, respectively, and income tax benefit of $17 million for the year ended December 31, 2021.