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Regulatory Matters (Schedule of Net Carrying Value Of Facilities) (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Public Utilities, General Disclosures [Line Items] |  |
Remaining net book value | $ 115,315 | $ 111,748
Duke Energy Carolinas |  |
Public Utilities, General Disclosures [Line Items] |  |
Remaining net book value | 36,774 | 35,981
Duke Energy Progress |  |
Public Utilities, General Disclosures [Line Items] |  |
Remaining net book value | 24,056 | 24,674
Duke Energy Florida |  |
Public Utilities, General Disclosures [Line Items] |  |
Remaining net book value | 21,286 | 19,563
Duke Energy Indiana |  |
Public Utilities, General Disclosures [Line Items] |  |
Remaining net book value | $ 12,399 | $ 12,100

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