Condensed Consolidated Statements of Changes in Equity - Duke Energy Progress - USD ($) $ in Millions	Total	Duke Energy Progress	Duke Energy Progress Member's Equity
Beginning balance at Dec. 31, 2020			$ 9,260
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 3,908	$ 991	991
Distribution to parent	(3,008)		(700)
Other	(8)
Ending balance at Dec. 31, 2021			9,551
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,550	1,008	1,008
Distribution to parent	(3,073)		(250)
Other	3
Ending balance at Dec. 31, 2022		10,309	10,309
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,841	998	998
Distribution to parent	(3,138)		(500)
Other	$ (2)
Ending balance at Dec. 31, 2023		$ 10,807	$ 10,807