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Variable Interest Entities (Narrative) (Details) - USD ($) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 31, 2025 | Apr. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Apr. 01, 2024 | Feb. 29, 2024
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Inventory (includes $494 at 2024 and $462 at 2023 related to VIEs) |  |  |  | $ 4,509,000,000 | $ 4,292,000,000 |  |  |
Accounts payable |  |  |  | 5,479,000,000 | 4,228,000,000 |  |  |
Duke Energy Carolinas |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Inventory (includes $494 at 2024 and $462 at 2023 related to VIEs) |  |  |  | 1,536,000,000 | 1,484,000,000 |  |  |
Accounts payable |  |  |  | 1,809,000,000 | 1,183,000,000 |  |  |
Duke Energy Progress |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Inventory (includes $494 at 2024 and $462 at 2023 related to VIEs) |  |  |  | 1,341,000,000 | 1,227,000,000 |  |  |
Accounts payable |  |  |  | 749,000,000 | 634,000,000 |  |  |
Duke Energy Ohio |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Inventory (includes $494 at 2024 and $462 at 2023 related to VIEs) |  |  |  | 183,000,000 | 179,000,000 |  |  |
Accounts payable |  |  |  | 313,000,000 | 338,000,000 |  |  |
Duke Energy Florida |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Inventory (includes $494 at 2024 and $462 at 2023 related to VIEs) |  |  |  | 745,000,000 | 674,000,000 |  |  |
Accounts payable |  |  |  | 1,418,000,000 | 738,000,000 |  |  |
Duke Energy Indiana |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Inventory (includes $494 at 2024 and $462 at 2023 related to VIEs) |  |  |  | 586,000,000 | 582,000,000 |  |  |
Accounts payable |  |  |  | $ 257,000,000 | 300,000,000 |  |  |
CRC |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Variation in credit losses (as a percent) |  |  |  | 10.00% |  |  |  |
Variation in discount rates (as a percent) |  |  |  | 20.00% |  |  |  |
Consolidated VIEs |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Financial support |  |  |  | $ 0 | 0 | $ 0 |  |
Inventory (includes $494 at 2024 and $462 at 2023 related to VIEs) |  |  |  | 494,000,000 | 462,000,000 |  |  |
Accounts payable |  |  |  | 214,000,000 | 188,000,000 |  |  |
Consolidated VIEs | Duke Energy Carolinas | Secured Debt | Subsequent Event |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Repayments of debt | $ 500,000,000 |  |  |  |  |  |  |
Consolidated VIEs | Duke Energy Florida |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Inventory (includes $494 at 2024 and $462 at 2023 related to VIEs) |  |  |  | 494,000,000 | 462,000,000 |  |  |
Accounts payable |  |  |  | $ 208,000,000 | 188,000,000 |  |  |
Consolidated VIEs | Duke Energy Florida | DEFR Accounts Receivable Securitization Facility Maturing April 2024 | Secured Debt |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Repayments of debt |  | $ 325,000,000 |  |  |  |  |  |
Consolidated VIEs | Duke Energy Florida | DERF Accounts Receivable Securitization financing | Secured Debt | Subsequent Event |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Repayments of debt | 500,000,000 |  |  |  |  |  |  |
Consolidated VIEs | CRC |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Repayments of debt |  |  | $ 350,000,000 |  |  |  |  |
Restricted receivables |  |  |  |  | 663,000,000 |  |  | $ 682,000,000
Proceeds received as cash (as a percent) |  |  |  | 75.00% |  |  |  |
Proceeds received as subordinated note (as a percent) |  |  |  | 25.00% |  |  |  |
Consolidated VIEs | CRC | Duke Energy Ohio |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Restricted receivables |  |  |  |  |  |  |  | 366,000,000
Consolidated VIEs | CRC | Duke Energy Indiana |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Restricted receivables |  |  |  |  |  |  |  | $ 316,000,000
Consolidated VIEs | DEFR | Duke Energy Florida |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Restricted receivables |  |  |  |  | 532,000,000 |  | $ 459,000,000 |
Consolidated VIEs | DERF | Duke Energy Carolinas |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Restricted receivables |  |  |  | $ 1,054,000,000 | $ 991,000,000 |  |  |
Consolidated VIEs | DERF | Duke Energy Carolinas | Subsequent Event |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Restricted receivables | $ 1,081,000,000 |  |  |  |  |  |  |
Consolidated VIEs | DEPSCSF | Duke Energy Progress |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Proceeds from issuance of senior secured bonds |  | $ 177,000,000 |  |  |  |  |  |
Non-consolidated VIEs | CRC | Duke Energy Ohio |  |  |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |  |  |
Discount rate (as a percent) |  |  |  | 1.00% |  |  |  |

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