Stockholders' Equity (Earnings Per Share Data) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Class of Stock [Line Items]
Net (Loss) Income Available to Duke Energy Corporation Common Stockholders	$ (234)	$ 893	$ 531	$ 1,711
Accumulated preferred stock dividends adjustment	(12)	(12)
Less: Impact of participating securities	1		2	1
Income from continuing operations available to Duke Energy common stockholders	701	854	1,622	1,671
Loss from discontinued operations, net of tax	(955)	(18)	(1,164)	(33)
Add: Net loss attributable to noncontrolling interest included in discontinued operations	7	45	71	72
Discontinued operations	$ (948)	$ 27	$ (1,093)	$ 39
Weighted average common shares outstanding – basic (in shares)	771	770	770	770
Weighted average common shares outstanding – diluted (in shares)	771	770	770	770
Basic (in usd per share)	$ 0.91	$ 1.11	$ 2.10	$ 2.17
Diluted (in usd per share)	0.91	1.11	2.10	2.17
EPS from continuing operations available to Duke Energy common stockholders
Basic (usd per share)	(1.23)	0.03	(1.41)	0.05
Diluted (usd per share)	$ (1.23)	$ 0.03	$ (1.41)	$ 0.05
Potentially dilutive items excluded from the calculation (in shares)	2	2	2	2
Common Stock
EPS from continuing operations available to Duke Energy common stockholders
Dividends declared per common share (in usd per share)	$ 1.005	$ 0.985	$ 2.010	$ 1.970
Preferred stock, Series A
EPS from continuing operations available to Duke Energy common stockholders
Dividends declared on preferred stock per depositary share (in usd per share)	0.359	$ 0.359	$ 0.719	0.719
Cumulative dividend rate per annum			5.75%
Liquidation preference per share (in usd per share)	25		$ 25
Preferred stock, Series B
EPS from continuing operations available to Duke Energy common stockholders
Dividends declared on preferred stock per depositary share (in usd per share)			$ 24.375	$ 24.375
Cumulative dividend rate per annum			4.875%
Liquidation preference per share (in usd per share)	$ 1,000		$ 1,000