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Variable Interest Entities (Schedule of Consolidated VIEs) (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | $ 2,269 | $ 2,756
Current Assets: Other | 1,001 | 695
Other Noncurrent Assets: Regulatory assets | 14,172 | 14,254
Other Noncurrent Assets: Other | 3,792 | 3,509
Current Liabilities: Other | 1,887 | 2,084
Current maturities of long-term debt | 5,046 | 4,349
Long-Term Debt | 78,914 | 76,340
Inventory | 4,434 | 4,509
Accounts payable | 4,373 | 5,479
Duke Energy Carolinas |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 656 | 685
Current Assets: Other | 354 | 52
Other Noncurrent Assets: Regulatory assets | 3,985 | 4,199
Other Noncurrent Assets: Other | 1,198 | 1,127
Current Liabilities: Other | 477 | 541
Current maturities of long-term debt | 23 | 521
Long-Term Debt | 18,022 | 16,669
Inventory | 1,524 | 1,536
Accounts payable | 1,347 | 1,809
Duke Energy Progress |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 614 | 626
Current Assets: Other | 159 | 104
Other Noncurrent Assets: Regulatory assets | 4,654 | 4,555
Other Noncurrent Assets: Other | 770 | 724
Current Liabilities: Other | 310 | 427
Current maturities of long-term debt | 582 | 983
Long-Term Debt | 13,483 | 11,371
Inventory | 1,323 | 1,341
Accounts payable | 581 | 749
Duke Energy Florida |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 562 | 1,022
Current Assets: Other | 85 | 227
Other Noncurrent Assets: Regulatory assets | 2,105 | 2,064
Other Noncurrent Assets: Other | 491 | 465
Current Liabilities: Other | 352 | 342
Current maturities of long-term debt | 1,235 | 534
Long-Term Debt | 9,785 | 9,814
Inventory | 767 | 745
Accounts payable | 977 | 1,418
DEFPF | Duke Energy Florida | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 61 | 61
Current Assets: Other | 28 | 35
Other Noncurrent Assets: Regulatory assets | 715 | 741
Other Noncurrent Assets: Other | 7 | 0
Current Liabilities: Other | 8 | 8
Current maturities of long-term debt | 60 | 59
Long-Term Debt | 741 | 773
DECNCSF | Duke Energy Carolinas | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 12 | 12
Current Assets: Other | 9 | 9
Other Noncurrent Assets: Regulatory assets | 184 | 189
Other Noncurrent Assets: Other | 1 | 1
Current Liabilities: Other | 2 | 2
Current maturities of long-term debt | 10 | 10
Long-Term Debt | 193 | 198
DEPNCSF | Duke Energy Progress | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 39 | 39
Current Assets: Other | 29 | 27
Other Noncurrent Assets: Regulatory assets | 600 | 620
Other Noncurrent Assets: Other | 4 | 4
Current Liabilities: Other | 8 | 10
Current maturities of long-term debt | 35 | 34
Long-Term Debt | 629 | 646
DEPSCSF | Duke Energy Progress | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 8 | 8
Current Assets: Other | 8 | 13
Other Noncurrent Assets: Regulatory assets | 152 | 155
Other Noncurrent Assets: Other | 1 | 1
Current Liabilities: Other | 3 | 7
Current maturities of long-term debt | 5 | 9
Long-Term Debt | 160 | 163
DEF ProCo | Duke Energy Florida | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Inventory | 548 | 494
Accounts payable | $ 241 | $ 208

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