Stockholders' Equity (Earnings Per Share Data) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended								12 Months Ended
	Sep. 16, 2024	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Net Income available to Duke Energy common stockholders		$ (650)	$ 1,383	$ 893	$ 818	$ 732	$ 1,366	$ 751	$ 953	$ 2,444	$ 3,802	$ 1,270
Net income from discontinued operations attributable to Duke Energy Corporation										(1,215)	200	289
Accumulated preferred stock dividends adjustment												1
Less: Impact of participating securities										2	3	2
Income from continuing operations available to Duke Energy common stockholders										3,657	3,599	980
(Loss) Income from discontinued operations, net of tax		(1,293)	3	(18)	(15)	(36)	(57)	(25)	(26)	(1,323)	(144)	(7)
Loss From Discontinued Operations, net of tax		$ 1,293	$ (3)	$ 18	$ 15	$ 36	$ 57	$ 25	$ 26	1,323	144	7
Add: Net loss attributable to noncontrolling interest included in discontinued operations										$ 108	$ 344	$ 296
Weighted average common shares outstanding – basic (in shares)										770	769	737
Equity forwards (in shares)												1
Weighted average common shares outstanding – diluted (in shares)										770	769	738
EPS from continuing operations available to Duke Energy common stockholders
Basic (usd per share)		$ 0.80	$ 1.78	$ 1.11	$ 1.06	$ 0.86	$ 1.69	$ 0.90	$ 1.22	$ 4.74	$ 4.68	$ 1.33
Diluted (usd per share)		0.80	$ 1.78	$ 1.11	$ 1.06	$ 0.86	$ 1.69	$ 0.90	$ 1.22	4.74	4.68	1.33
(Loss) Earnings Per Share from discontinued operations attributable to Duke Energy common stockholders
Basic (usd per share)										(1.57)	0.26	0.39
Diluted (usd per share)										$ (1.57)	$ 0.26	$ 0.39
Potentially dilutive items excluded from the calculation (in shares)										2	2	2
Dividends declared per share (usd per share)										$ 3.98	$ 3.90	$ 3.82
Series A Preferred Stock
(Loss) Earnings Per Share from discontinued operations attributable to Duke Energy common stockholders
Dividends declared on preferred stock (usd per share)										$ 1.437	1.437	1.437
Cumulative annual dividend rate (as a percent)										5.75%
Liquidation preference per share (in usd per share)		25								$ 25
Series B Preferred Stock
(Loss) Earnings Per Share from discontinued operations attributable to Duke Energy common stockholders
Dividends declared on preferred stock (usd per share)										$ 48.750	$ 48.750	$ 49.292
Cumulative annual dividend rate (as a percent)										4.875%
Liquidation preference per share (in usd per share)		$ 1,000								$ 1,000
Series B Preferred Stock | Forecast
(Loss) Earnings Per Share from discontinued operations attributable to Duke Energy common stockholders
Cumulative annual dividend rate (as a percent)	3.388%