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Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Average remaining useful life (in years) | 14 years | 13 years
Land | $ 2,345 | $ 2,232
Other buildings and improvements | 6,920 | 6,459
Equipment | 3,409 | 2,959
Construction in process | 8,372 | 7,381
Total property, plant and equipment | 171,351 | 163,839
Facilities to be retired, net | 2 | 9
Total net property, plant and equipment | $ 115,315 | $ 111,748
Other, estimated useful life, in years | 12 years | 13 years
Finance leases, gross | $ 697 | $ 816
Accumulated amortization of finance leases | (3) | (7)
Nuclear fuel |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Nuclear fuel | 3,303 | 3,081
Accumulated depreciation and amortization | (1,793) | (1,683)
Regulated |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Accumulated depreciation and amortization | $ (54,323) | $ (50,544)
Regulated | Electric generation, distribution and transmission |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Average remaining useful life (in years) | 40 years | 39 years
Plant - transmission and distribution | $ 129,985 | $ 126,016
Regulated | Natural gas transmission and distribution |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Average remaining useful life (in years) | 57 years | 56 years
Plant - transmission and distribution | $ 14,130 | $ 13,174
Regulated | Other buildings and improvements |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Average remaining useful life (in years) | 42 years | 40 years
Other buildings and improvements | $ 2,887 | $ 2,537
Nonregulated |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Accumulated depreciation and amortization | (1,715) | (1,556)
Accumulated amortization of finance leases | (7) | (1)
Duke Energy Carolinas |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Land | 581 | 565
Other buildings and improvements | 1,455 | 1,368
Equipment | 870 | 710
Construction in process | 2,578 | 2,671
Total property, plant and equipment | 56,670 | 54,650
Total net property, plant and equipment | 36,774 | 35,981
Finance leases, gross | 335 | 335
Accumulated amortization of finance leases | (67) | (51)
Duke Energy Carolinas | Nuclear fuel |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Nuclear fuel | 1,866 | 1,723
Accumulated depreciation and amortization | (991) | (934)
Duke Energy Carolinas | Regulated |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Accumulated depreciation and amortization | (19,896) | (18,669)
Duke Energy Carolinas | Regulated | Electric generation, distribution and transmission |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Plant - transmission and distribution | 48,107 | 46,640
Duke Energy Carolinas | Regulated | Other buildings and improvements |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Other buildings and improvements | 1,213 | 973
Progress Energy |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Land | 1,012 | 993
Other buildings and improvements | 2,037 | 1,943
Equipment | 1,104 | 936
Construction in process | 3,941 | 3,073
Total property, plant and equipment | 67,644 | 64,822
Total net property, plant and equipment | 45,344 | 44,238
Finance leases, gross | 615 | 674
Accumulated amortization of finance leases | (292) | (233)
Progress Energy | Nuclear fuel |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Nuclear fuel | 1,437 | 1,358
Accumulated depreciation and amortization | (802) | (749)
Progress Energy | Regulated |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Accumulated depreciation and amortization | (22,300) | (20,584)
Progress Energy | Regulated | Electric generation, distribution and transmission |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Plant - transmission and distribution | 57,436 | 55,872
Progress Energy | Regulated | Other buildings and improvements |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Other buildings and improvements | 677 | 647
Duke Energy Progress |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Land | 502 | 496
Other buildings and improvements | 1,481 | 1,460
Equipment | 654 | 567
Construction in process | 1,661 | 1,317
Total property, plant and equipment | 39,283 | 38,875
Total net property, plant and equipment | 24,056 | 24,674
Finance leases, gross | 552 | 590
Accumulated amortization of finance leases | (119) | (81)
Duke Energy Progress | Nuclear fuel |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Nuclear fuel | 1,437 | 1,358
Accumulated depreciation and amortization | (802) | (749)
Duke Energy Progress | Regulated |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Accumulated depreciation and amortization | (15,227) | (14,201)
Duke Energy Progress | Regulated | Electric generation, distribution and transmission |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Plant - transmission and distribution | 33,171 | 33,336
Duke Energy Progress | Regulated | Other buildings and improvements |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Other buildings and improvements | 377 | 341
Duke Energy Florida |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Land | 510 | 497
Other buildings and improvements | 548 | 476
Equipment | 450 | 369
Construction in process | 2,280 | 1,756
Total property, plant and equipment | 28,353 | 25,940
Total net property, plant and equipment | 21,286 | 19,563
Finance leases, gross | 63 | 84
Accumulated amortization of finance leases | (173) | (152)
Duke Energy Florida | Regulated |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Accumulated depreciation and amortization | (7,067) | (6,377)
Duke Energy Florida | Regulated | Electric generation, distribution and transmission |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Plant - transmission and distribution | 24,265 | 22,536
Duke Energy Florida | Regulated | Other buildings and improvements |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Other buildings and improvements | 300 | 306
Duke Energy Ohio |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Land | 242 | 230
Other buildings and improvements | 410 | 380
Equipment | 474 | 441
Construction in process | 427 | 375
Total property, plant and equipment | 13,210 | 12,497
Total net property, plant and equipment | 9,759 | 9,247
Duke Energy Ohio | Regulated |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Accumulated depreciation and amortization | (3,451) | (3,250)
Duke Energy Ohio | Regulated | Electric generation, distribution and transmission |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Plant - transmission and distribution | 7,243 | 6,900
Duke Energy Ohio | Regulated | Natural gas transmission and distribution |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Plant - transmission and distribution | 3,993 | 3,773
Duke Energy Ohio | Regulated | Other buildings and improvements |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Other buildings and improvements | 421 | 398
Duke Energy Indiana |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Land | 133 | 124
Other buildings and improvements | 344 | 320
Equipment | 442 | 356
Construction in process | 427 | 381
Total property, plant and equipment | 18,900 | 18,121
Total net property, plant and equipment | 12,399 | 12,100
Finance leases, gross | 10 | 10
Accumulated amortization of finance leases | (4) | (4)
Duke Energy Indiana | Regulated |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Accumulated depreciation and amortization | (6,501) | (6,021)
Duke Energy Indiana | Regulated | Electric generation, distribution and transmission |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Plant - transmission and distribution | 17,199 | 16,604
Duke Energy Indiana | Regulated | Other buildings and improvements |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Other buildings and improvements | 355 | 336
Piedmont |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Land | 352 | 295
Other buildings and improvements | 363 | 387
Equipment | 143 | 125
Construction in process | 690 | 478
Total property, plant and equipment | 11,906 | 10,869
Facilities to be retired, net | 2 | 9
Total net property, plant and equipment | 9,649 | 8,797
Piedmont | Regulated |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Accumulated depreciation and amortization | (2,259) | (2,081)
Piedmont | Regulated | Natural gas transmission and distribution |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Plant - transmission and distribution | 10,137 | 9,401
Piedmont | Regulated | Other buildings and improvements |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |
Other buildings and improvements | $ 221 | $ 183

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