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Derivatives and Hedging (Schedule of Offsetting Liabilities) (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 319 | $ 729
Net amounts presented in Current Liabilities: Other | 113 | 311
Net amounts presented in Other Noncurrent Liabilities: Other | 133 | 217
Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 145 | 409
Offset | (29) | (2)
Cash collateral posted | $ (3) | $ (96)
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] | Current Liabilities: Other | Current Liabilities: Other
Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 174 | $ 320
Offset | (37) | (37)
Cash collateral posted | $ (4) | $ (66)
Derivative Liability, Statement of Financial Position [Extensible Enumeration] | Other (includes $54 at 2023 related to VIEs) | Other (includes $54 at 2023 related to VIEs)
Duke Energy Carolinas |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 88 | $ 260
Net amounts presented in Current Liabilities: Other | 40 | 130
Net amounts presented in Other Noncurrent Liabilities: Other | 8 | 29
Duke Energy Carolinas | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 57 | 179
Offset | (15) | (1)
Cash collateral posted | (2) | (48)
Duke Energy Carolinas | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 31 | 81
Offset | (19) | (14)
Cash collateral posted | (4) | (38)
Progress Energy |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 58 | 234
Net amounts presented in Current Liabilities: Other | 20 | 118
Net amounts presented in Other Noncurrent Liabilities: Other | 7 | 35
Progress Energy | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 34 | 149
Offset | (14) | (1)
Cash collateral posted |  | (30)
Progress Energy | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 24 | 85
Offset | (17) | (22)
Cash collateral posted |  | (28)
Duke Energy Progress |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 57 | 219
Net amounts presented in Current Liabilities: Other | 19 | 118
Net amounts presented in Other Noncurrent Liabilities: Other | 7 | 20
Duke Energy Progress | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 33 | 149
Offset | (14) | (1)
Cash collateral posted |  | (30)
Duke Energy Progress | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 24 | 70
Offset | (17) | (22)
Cash collateral posted |  | (28)
Duke Energy Florida |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 1 | 15
Net amounts presented in Current Liabilities: Other | 1 |
Net amounts presented in Other Noncurrent Liabilities: Other |  | 15
Duke Energy Florida | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 1 |
Duke Energy Florida | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized |  | 15
Duke Energy Ohio |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 1 | 1
Net amounts presented in Other Noncurrent Liabilities: Other | 1 | 1
Duke Energy Ohio | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 1 | 1
Duke Energy Indiana |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 3 | 18
Net amounts presented in Current Liabilities: Other | 2 |
Duke Energy Indiana | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 3 | 18
Cash collateral posted | (1) | (18)
Piedmont |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 94 | 147
Net amounts presented in Current Liabilities: Other | 16 | 20
Net amounts presented in Other Noncurrent Liabilities: Other | 78 | 127
Piedmont | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 16 | 20
Piedmont | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 78 | $ 127

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