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Derivatives and Hedging (Schedule of Offsetting Liabilities) (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 612 | $ 729
Net amounts presented in Current Liabilities: Other | 281 | 311
Net amounts presented in Current Liabilities: Other | 162 | 217
Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 367 | 409
Offset | (1) | (2)
Cash collateral posted | $ (85) | $ (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 | $ 245 | $ 320
Offset | (31) | (37)
Cash collateral posted | $ (52) | $ (66)
Derivative Liability, Statement of Financial Position [Extensible Enumeration] | Other | Other
Duke Energy Carolinas |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | $ 234 | $ 260
Net amounts presented in Current Liabilities: Other | 135 | 130
Net amounts presented in Current Liabilities: Other | 18 | 29
Duke Energy Carolinas | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 175 | 179
Offset | (1) | (1)
Cash collateral posted | (39) | (48)
Duke Energy Carolinas | Noncurrent liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 59 | 81
Offset | (11) | (14)
Cash collateral posted | (30) | (38)
Progress Energy |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 188 | 234
Net amounts presented in Current Liabilities: Other | 99 | 118
Net amounts presented in Current Liabilities: Other | 21 | 35
Progress Energy | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 126 | 149
Offset | (1) | (1)
Cash collateral posted | (26) | (30)
Progress Energy | Noncurrent liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 62 | 85
Offset | (20) | (22)
Cash collateral posted | (21) | (28)
Duke Energy Progress |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 181 | 219
Net amounts presented in Current Liabilities: Other | 99 | 118
Net amounts presented in Current Liabilities: Other | 14 | 20
Duke Energy Progress | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 126 | 149
Offset | (1) | (1)
Cash collateral posted | (26) | (30)
Duke Energy Progress | Noncurrent liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 55 | 70
Offset | (20) | (22)
Cash collateral posted | (21) | (28)
Duke Energy Florida |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 7 | 15
Net amounts presented in Current Liabilities: Other | 0 | 0
Net amounts presented in Current Liabilities: Other | 7 | 15
Duke Energy Florida | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 0 | 0
Offset | 0 | 0
Cash collateral posted | 0 | 0
Duke Energy Florida | Noncurrent liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 7 | 15
Offset | 0 | 0
Cash collateral posted | 0 | 0
Duke Energy Ohio |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 1 | 1
Net amounts presented in Current Liabilities: Other | 0 | 0
Net amounts presented in Current Liabilities: Other | 1 | 1
Duke Energy Ohio | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 0 | 0
Offset | 0 | 0
Cash collateral posted | 0 | 0
Duke Energy Ohio | Noncurrent liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 1 | 1
Offset | 0 | 0
Cash collateral posted | 0 | 0
Duke Energy Indiana |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 19 | 18
Net amounts presented in Current Liabilities: Other | 0 | 0
Net amounts presented in Current Liabilities: Other | 0 | 0
Duke Energy Indiana | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 19 | 18
Offset | 0 | 0
Cash collateral posted | (19) | (18)
Duke Energy Indiana | Noncurrent liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 0 | 0
Offset | 0 | 0
Cash collateral posted | 0 | 0
Piedmont |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 126 | 147
Net amounts presented in Current Liabilities: Other | 14 | 20
Net amounts presented in Current Liabilities: Other | 112 | 127
Piedmont | Current liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 14 | 20
Offset | 0 | 0
Cash collateral posted | 0 | 0
Piedmont | Noncurrent liabilities |  |
Offsetting Derivative Liabilities [Abstract] |  |
Gross amounts recognized | 112 | 127
Offset | 0 | 0
Cash collateral posted | $ 0 | $ 0

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