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Stockholders' Equity (Earnings Per Share Data) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Class of Stock [Line Items]        
Net Income (Loss) Available to Duke Energy Corporation Common Stockholders $ 886 $ (234) $ 1,985 $ 531
Accumulated preferred stock dividends adjustment (12) (12) 0 0
Less: Impact of participating securities 1 1 2 2
Income from continuing operations available to Duke Energy common stockholders 883 701 1,996 1,622
Loss from discontinued operations, net of tax (10) (955) (13) (1,164)
Add: Net loss attributable to noncontrolling interest included in discontinued operations 0 7 0 71
Loss From Discontinued Operations, net of tax $ (10) $ (948) $ (13) $ (1,093)
Weighted average common shares outstanding – basic (in shares) 772 771 771 770
Weighted average common shares outstanding – diluted (in shares) 772 771 771 770
Basic (in usd per share) $ 1.14 $ 0.91 $ 2.59 $ 2.10
Diluted (in usd per share) 1.14 0.91 2.59 2.10
EPS from continuing operations available to Duke Energy common stockholders        
Basic (usd per share) (0.01) (1.23) (0.02) (1.41)
Diluted (usd per share) $ (0.01) $ (1.23) $ (0.02) $ (1.41)
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) $ 1.025 $ 1.005 $ 2.050 $ 2.010
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) 0 $ 0 $ 24.375 $ 24.375
Cumulative dividend rate per annum     4.875%  
Liquidation preference per share (in usd per share) $ 1,000   $ 1,000