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Regulatory Matters (Schedule of Net Carrying Value Of Facilities) (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Public Utilities, General Disclosures [Line Items] |  |
Remaining net book value | $ 129,959 | $ 121,626
Duke Energy Carolinas |  |
Public Utilities, General Disclosures [Line Items] |  |
Remaining net book value | 41,855 | 39,292
Duke Energy Progress |  |
Public Utilities, General Disclosures [Line Items] |  |
Remaining net book value | 28,195 | 26,130
Duke Energy Florida |  |
Public Utilities, General Disclosures [Line Items] |  |
Remaining net book value | 24,723 | 22,840
Duke Energy Indiana |  |
Public Utilities, General Disclosures [Line Items] |  |
Remaining net book value | $ 13,749 | $ 13,122

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