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 (member's equity) at Dec. 31, 2020			$ 9,260
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income Attributable to Duke Energy Corporation	$ 1,757	$ 425	425
Common stock dividends	(1,488)
Other	0
Ending Balance (member's equity) at Jun. 30, 2021			9,685
Beginning Balance (member's equity) at Mar. 31, 2021			9,470
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income Attributable to Duke Energy Corporation	765	215	215
Common stock dividends	(744)
Ending Balance (member's equity) at Jun. 30, 2021			9,685
Beginning Balance (member's equity) at Dec. 31, 2021		9,551	9,551
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income Attributable to Duke Energy Corporation	1,764	434	434
Common stock dividends	(1,521)		(250)
Other	1
Ending Balance (member's equity) at Jun. 30, 2022		9,735	9,735
Beginning Balance (member's equity) at Mar. 31, 2022			9,517
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income Attributable to Duke Energy Corporation	907	219	219
Common stock dividends	(761)
Other	$ 1		(1)
Ending Balance (member's equity) at Jun. 30, 2022		$ 9,735	$ 9,735