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Property, Plant and Equipment (Schedule of Capitalized Interest) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Property, Plant and Equipment [Line Items] |  |  |
Capitalized interest | $ 201 | $ 118 | $ 66
Duke Energy Carolinas |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capitalized interest | 62 | 50 | 29
Progress Energy |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capitalized interest | 41 | 26 | 20
Duke Energy Progress |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capitalized interest | 35 | 19 | 14
Duke Energy Florida |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capitalized interest | 6 | 7 | 6
Duke Energy Ohio |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capitalized interest | 16 | 14 | 20
Duke Energy Indiana |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capitalized interest | 21 | 3 |
PISCC amortization |  |  | 17
Duke Energy Indiana | PISCC Amortization |  |  |
Property, Plant and Equipment [Line Items] |  |  |
PISCC amortization |  |  | 24
Duke Energy Indiana | Debt Component of AFUDC |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capitalized interest |  |  | 7
Piedmont |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capitalized interest | $ 8 | $ 4 | $ 9

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- Definition Allowance for Funds Used During Construction, Post-In-Service carrying Costs, Capitalized Interest (Reversal Of Cost), Amortization + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount capitalized of allowance for funds used during construction. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 980 -SubTopic 835 -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481668/980-835-25-1 + Details
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