Condensed Consolidated Statements of Changes in Equity - Duke Energy Carolinas - USD ($) $ in Millions		Total		Duke Energy Carolinas	Duke Energy Carolinas Member's Equity	Duke Energy Carolinas Net Losses on Cash Flow Hedges
Beginning balance at Dec. 31, 2020				$ 13,154	$ 13,161	$ (7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		$ 3,908		1,336	1,336
Other comprehensive (loss) income		(56)	[1]	1		1
Distribution to parent		(3,008)		(600)	(600)
Other		(8)
Ending balance at Dec. 31, 2021				13,891	13,897	(6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		2,550		1,600	1,600
Other comprehensive (loss) income	[1]	174
Distribution to parent		(3,073)		(50)	(50)
Other		3		1	1
Ending balance at Dec. 31, 2022				15,442	15,448	(6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		2,841		1,470	1,470
Other comprehensive (loss) income	[1]	134
Distribution to parent		(3,138)
Other		$ (2)		(5)	(5)
Ending balance at Dec. 31, 2023				$ 16,907	$ 16,913	$ (6)

[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.