Regulatory Matters (Schedule of Net Carrying Value Of Facilities) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2034 asset	Dec. 31, 2022 USD ($) MW	Dec. 31, 2021 USD ($)
Public Utilities, General Disclosures [Line Items]
Remaining net book value		$ 111,748	$ 105,536
Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Capacity (in MW) | MW		9,146
Remaining net book value		$ 6,293
Duke Energy Carolinas
Public Utilities, General Disclosures [Line Items]
Remaining net book value		$ 35,981	34,122
Duke Energy Carolinas | Allen Steam Station Unit 1 | Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Capacity (in MW) | MW		167
Remaining net book value		$ 10
Duke Energy Carolinas | Allen Steam Station Unit 5 | Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Capacity (in MW) | MW		259
Remaining net book value		$ 233
Duke Energy Carolinas | Cliffside Unit 5 | Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Capacity (in MW) | MW		546
Remaining net book value		$ 344
Duke Energy Carolinas | Marshall Units 1 And 2 | Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Capacity (in MW) | MW		760
Remaining net book value		$ 428
Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Remaining net book value		$ 24,674	23,657
Duke Energy Progress | Mayo Unit 1 | Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Capacity (in MW) | MW		713
Remaining net book value		$ 639
Duke Energy Progress | Roxboro Units 3-4 | Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Capacity (in MW) | MW		1,409
Remaining net book value		$ 425
Duke Energy Florida
Public Utilities, General Disclosures [Line Items]
Remaining net book value		$ 19,563	18,046
Duke Energy Florida | Crystal River Units 4 and 5 | Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Capacity (in MW) | MW		1,442
Remaining net book value		$ 1,549
Duke Energy Florida | Crystal River Units 4 and 5 | Generating facilities planned for retirement | Forecast
Public Utilities, General Disclosures [Line Items]
Facilities retiring ahead of schedule | asset	2
Facilities retiring ahead of schedule, years ahead	8 years
Duke Energy Florida | Crystal River Units 4-5 | Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Accelerated depreciation		200
Duke Energy Indiana
Public Utilities, General Disclosures [Line Items]
Remaining net book value		$ 12,100	$ 11,760
Duke Energy Indiana | Gibson Units 1 - 5 | Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Capacity (in MW) | MW		2,845
Remaining net book value		$ 2,043
Duke Energy Indiana | Cayuga Units 1 - 2 | Generating facilities planned for retirement
Public Utilities, General Disclosures [Line Items]
Capacity (in MW) | MW		1,005
Remaining net book value		$ 622