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Derivatives and Hedging (Schedule of Offsetting Liabilities) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 437 | $ 328
Net amounts presented in Current Liabilities: Other | 144 | 146
Net amounts presented in Other Noncurrent Liabilities: Other | 185 | 159
Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 193 | 157
Gross amounts offset | $ (49) | $ (11)
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] | Current Liabilities: Other | Current Liabilities: Other
Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 244 | $ 171
Gross amounts offset | $ (59) | $ (12)
Derivative Liability, Statement of Financial Position [Extensible Enumeration] | Other (includes amounts related to VIEs) | Other (includes amounts related to VIEs)
Duke Energy Carolinas |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 127 | $ 35
Net amounts presented in Current Liabilities: Other | 81 | 20
Net amounts presented in Other Noncurrent Liabilities: Other | 2 | 1
Duke Energy Carolinas | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 96 | 26
Gross amounts offset | (15) | (6)
Duke Energy Carolinas | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 31 | 9
Gross amounts offset | (29) | (8)
Progress Energy |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 66 | 24
Net amounts presented in Current Liabilities: Other | 18 | 14
Progress Energy | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 36 | 19
Gross amounts offset | (18) | (5)
Progress Energy | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 30 | 5
Gross amounts offset | (30) | (5)
Duke Energy Progress |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 48 | 10
Duke Energy Progress | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 18 | 5
Gross amounts offset | (18) | (5)
Duke Energy Progress | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 30 | 5
Gross amounts offset | (30) | (5)
Duke Energy Florida |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 19 | 14
Net amounts presented in Current Liabilities: Other | 19 | 14
Duke Energy Florida | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 19 | 14
Duke Energy Ohio |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 2 | 5
Net amounts presented in Current Liabilities: Other |  | 1
Net amounts presented in Other Noncurrent Liabilities: Other | 2 | 4
Duke Energy Ohio | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized |  | 1
Duke Energy Ohio | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 2 | 4
Duke Energy Indiana |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 16 | 27
Net amounts presented in Current Liabilities: Other |  | 13
Net amounts presented in Other Noncurrent Liabilities: Other |  | 14
Duke Energy Indiana | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 16 | 13
Gross amounts offset | (16) |
Duke Energy Indiana | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized |  | 14
Piedmont |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 168 | 139
Net amounts presented in Current Liabilities: Other | 27 | 21
Net amounts presented in Other Noncurrent Liabilities: Other | 141 | 118
Piedmont | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 27 | 21
Piedmont | Noncurrent Liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 141 | $ 118

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