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Variable Interest Entities (Schedule of Consolidated VIEs) (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | $ 3,082 | $ 3,648
Current Assets: Other | 359 | 431
Other Noncurrent Assets: Regulatory assets | 13,636 | 13,618
Other | 4,072 | 3,964
Current Liabilities: Other | 2,084 | 2,319
Current maturities of long-term debt | 2,274 | 2,800
Long-Term Debt | 74,979 | 72,452
Inventory | 4,281 | 4,292
Accounts payable | 3,364 | 4,228
Duke Energy Florida |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 525 | 720
Current Assets: Other | 57 | 51
Other Noncurrent Assets: Regulatory assets | 1,895 | 1,883
Other | 456 | 429
Current Liabilities: Other | 332 | 350
Current maturities of long-term debt | 586 | 589
Long-Term Debt | 9,791 | 9,812
Inventory | 693 | 674
Accounts payable | 616 | 738
Duke Energy Carolinas |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 1,347 | 1,564
Current Assets: Other | 62 | 31
Other Noncurrent Assets: Regulatory assets | 3,850 | 3,916
Other | 1,116 | 1,109
Current Liabilities: Other | 617 | 702
Current maturities of long-term debt | 520 | 19
Long-Term Debt | 16,199 | 15,693
Inventory | 1,478 | 1,484
Accounts payable | 925 | 1,183
Duke Energy Progress |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 834 | 942
Current Assets: Other | 58 | 72
Other Noncurrent Assets: Regulatory assets | 4,631 | 4,546
Other | 715 | 682
Current Liabilities: Other | 429 | 481
Current maturities of long-term debt | 73 | 72
Long-Term Debt | 11,955 | 11,492
Inventory | 1,294 | 1,227
Accounts payable | 557 | 634
DEFPF | Duke Energy Florida | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 59 | 59
Current Assets: Other | 9 | 37
Other Noncurrent Assets: Regulatory assets | 790 | 803
Current Liabilities: Other | 2 | 8
Current maturities of long-term debt | 59 | 59
Long-Term Debt | 800 | 831
DECNCSF | Duke Energy Carolinas | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 12 | 12
Current Assets: Other | 5 | 9
Other Noncurrent Assets: Regulatory assets | 193 | 196
Other | 1 | 1
Current Liabilities: Other | 1 | 10
Current maturities of long-term debt | 11 | 3
Long-Term Debt | 203 | 208
DEPNCSF | Duke Energy Progress | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Regulatory Assets: Current | 39 | 39
Current Assets: Other | 18 | 31
Other Noncurrent Assets: Regulatory assets | 633 | 643
Other | 4 | 2
Current Liabilities: Other | 4 | 34
Current maturities of long-term debt | 34 | 8
Long-Term Debt | 663 | 680
DEF ProCo | Duke Energy Florida | VIE primary beneficiary |  |
Variable Interest Entities [Line Items] |  |
Inventory | 470 | 462
Accounts payable | $ 179 | $ 188

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