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Asset Retirement Obligations (Recorded on the Balance Sheet) (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | $ 9,992 | $ 9,156 | $ 12,728
Less: Current portion | 650 | 596 |
Total noncurrent asset retirement obligation | 9,342 | 8,560 |
Decommissioning of nuclear power facilities |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 4,493 |  |
Closure of ash impoundments |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 5,173 |  |
Other |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 326 |  |
Duke Energy Carolinas |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 3,990 | 4,013 | 5,382
Less: Current portion | 247 | 224 |
Total noncurrent asset retirement obligation | 3,743 | 3,789 |
Duke Energy Carolinas | Decommissioning of nuclear power facilities |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 2,050 |  |
Duke Energy Carolinas | Closure of ash impoundments |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 1,867 |  |
Duke Energy Carolinas | Other |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 73 |  |
Progress Energy |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 4,548 | 4,145 | 6,181
Less: Current portion | 231 | 245 |
Total noncurrent asset retirement obligation | 4,317 | 3,900 |
Progress Energy | Decommissioning of nuclear power facilities |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 2,425 |  |
Progress Energy | Closure of ash impoundments |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 1,993 |  |
Progress Energy | Other |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 130 |  |
Duke Energy Progress |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 4,334 | 3,870 | 5,823
Less: Current portion | 230 | 244 |
Total noncurrent asset retirement obligation | 4,104 | 3,626 |
Duke Energy Progress | Decommissioning of nuclear power facilities |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 2,318 |  |
Duke Energy Progress | Closure of ash impoundments |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 1,975 |  |
Duke Energy Progress | Other |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 41 |  |
Duke Energy Florida |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 214 | 275 | 358
Less: Current portion | 1 | 1 |
Total noncurrent asset retirement obligation | 213 | 274 |
Duke Energy Florida | Decommissioning of nuclear power facilities |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 107 |  |
Duke Energy Florida | Closure of ash impoundments |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 18 |  |
Duke Energy Florida | Other |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 89 |  |
Duke Energy Ohio |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 139 | 136 | 154
Less: Current portion | 8 | 6 |
Total noncurrent asset retirement obligation | 131 | 130 |
Duke Energy Ohio | Closure of ash impoundments |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 72 |  |
Duke Energy Ohio | Other |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 67 |  |
Duke Energy Indiana |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 1,268 | 809 | 951
Less: Current portion | 164 | 120 |
Total noncurrent asset retirement obligation | 1,104 | 689 |
Duke Energy Indiana | Closure of ash impoundments |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 1,241 |  |
Duke Energy Indiana | Other |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 27 |  |
Piedmont |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | 29 | 26 | $ 26
Total noncurrent asset retirement obligation | 29 | $ 26 |
Piedmont | Other |  |  |
Asset Retirement Obligation [Line Items] |  |  |
Total asset retirement obligation | $ 29 |  |

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