Regulatory Matters (Schedule of Net Carrying Value Of Facilities) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Public Utilities, General Disclosures [Line Items]
Remaining net book value	$ 123,303	$ 115,315
Duke Energy Carolinas
Public Utilities, General Disclosures [Line Items]
Remaining net book value	39,292	36,774
Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Remaining net book value	26,130	24,056
Duke Energy Florida
Public Utilities, General Disclosures [Line Items]
Remaining net book value	22,840	21,286
Duke Energy Indiana
Public Utilities, General Disclosures [Line Items]
Remaining net book value	$ 13,122	$ 12,399