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v3.25.2

Related Party Transactions (Other Revenue and Expense) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | $ 5,692 | $ 5,471 | $ 11,604 | $ 11,191
Duke Energy Carolinas |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 1,637 | 1,752 | 3,458 | 3,555
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 | 157 | 189 | 335 | 403
Duke Energy Carolinas | Indemnification coverages | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 14 | 11 | 27 | 22
Duke Energy Carolinas | JDA | Duke Energy Progress |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 71 | 53 | 187 | 93
Related party transaction, other revenues from transactions with related party | 8 | 6 | 90 | 22
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 | 5 | 4 | 9
Progress Energy |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 2,652 | 2,533 | 5,249 | 5,049
Progress Energy | Corporate governance and shared service expenses | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 141 | 171 | 291 | 359
Progress Energy | Indemnification coverages | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 16 | 15 | 32 | 29
Progress Energy | JDA | Duke Energy Carolinas |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 8 | 6 | 90 | 22
Related party transaction, other revenues from transactions with related party | 71 | 53 | 187 | 93
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 | 18 | 38 | 37
Duke Energy Progress |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 1,278 | 1,288 | 2,818 | 2,673
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 | 81 | 100 | 167 | 214
Duke Energy Progress | Indemnification coverages | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 6 | 6 | 13 | 12
Duke Energy Progress | JDA | Duke Energy Carolinas |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 8 | 6 | 90 | 22
Related party transaction, other revenues from transactions with related party | 71 | 53 | 187 | 93
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 | 18 | 38 | 37
Duke Energy Florida |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 1,371 | 1,240 | 2,424 | 2,368
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 | 60 | 71 | 124 | 145
Duke Energy Florida | Indemnification coverages | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 10 | 9 | 19 | 17
Duke Energy Ohio |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 533 | 472 | 1,135 | 998
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 | 70 | 77 | 134 | 154
Duke Energy Ohio | Indemnification coverages | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 2 | 1 | 3 | 3
Duke Energy Indiana |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 650 | 572 | 1,315 | 1,206
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 | 73 | 83 | 144 | 185
Duke Energy Indiana | Indemnification coverages | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 3 | 3 | 5 | 5
Piedmont |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 317 | 223 | 773 | 565
Piedmont | Corporate governance and shared service expenses | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 36 | 40 | 67 | 81
Piedmont | Indemnification coverages | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, expenses from transactions with related party | 2 | 1 | 3 | 2
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 | 42 | 46
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 | $ 11 | $ 12

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