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v3.25.1

Related Party Transactions (Other Revenue and Expense) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | $ 5,912 | $ 5,720
Duke Energy Carolinas |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 1,821 | 1,803
Duke Energy Carolinas | Corporate governance and shared service expenses | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 178 | 214
Duke Energy Carolinas | Indemnification coverages | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 13 | 11
Duke Energy Carolinas | JDA | Duke Energy Progress |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 116 | 40
Related party transaction, other revenues from transactions with related party | 82 | 16
Duke Energy Carolinas | Intercompany natural gas purchases and sales | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 2 | 4
Progress Energy |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 2,597 | 2,516
Progress Energy | Corporate governance and shared service expenses | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 150 | 188
Progress Energy | Indemnification coverages | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 16 | 14
Progress Energy | JDA | Duke Energy Carolinas |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 82 | 16
Related party transaction, other revenues from transactions with related party | 116 | 40
Progress Energy | Intercompany natural gas purchases and sales | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 19 | 19
Duke Energy Progress |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 1,540 | 1,385
Duke Energy Progress | Corporate governance and shared service expenses | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 86 | 114
Duke Energy Progress | Indemnification coverages | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 7 | 6
Duke Energy Progress | JDA | Duke Energy Carolinas |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 82 | 16
Related party transaction, other revenues from transactions with related party | 116 | 40
Duke Energy Progress | Intercompany natural gas purchases and sales | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 19 | 19
Duke Energy Florida |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 1,053 | 1,128
Duke Energy Florida | Corporate governance and shared service expenses | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 64 | 74
Duke Energy Florida | Indemnification coverages | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 9 | 8
Duke Energy Ohio |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 602 | 526
Duke Energy Ohio | Corporate governance and shared service expenses | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 64 | 77
Duke Energy Ohio | Indemnification coverages | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 1 | 2
Duke Energy Indiana |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 665 | 634
Duke Energy Indiana | Corporate governance and shared service expenses | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 71 | 102
Duke Energy Indiana | Indemnification coverages | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 2 | 2
Piedmont |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 456 | 342
Piedmont | Corporate governance and shared service expenses | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 31 | 41
Piedmont | Indemnification coverages | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | 1 | 1
Piedmont | Intercompany natural gas purchases and sales | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, other revenues from transactions with related party | 21 | 23
Piedmont | Natural gas storage and transportation costs | Related Party |  |
Related Party Transaction [Line Items] |  |
Related party transaction, expenses from transactions with related party | $ 5 | $ 6

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