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Property, Plant and Equipment (Schedule Of Property, Plant and Equipment) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Equipment, estimated useful life, years | 13 years | 13 years |
Land | $ 2,232 | $ 2,145 |
Other buildings and improvements | 6,090 | 5,276 |
Equipment | 2,959 | 2,659 |
Construction in process | 7,381 | 5,979 |
Total property, plant and equipment | 163,839 | 154,496 |
Facilities to be retired, net | 9 | 144 |
Total net property, plant and equipment | $ 111,748 | $ 105,536 |
Other, estimated useful life, in years | 15 years | 14 years |
Finance leases, gross | $ 816 | $ 958 |
Accumulated amortization of finance leases | 7 | 9 |
Capitalized Interest Costs [Abstract] |  |  |
Capitalized interest | 118 | 66 | $ 96
Nuclear fuel |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Nuclear fuel | 3,081 | 3,181 |
Accumulated depreciation and amortization | (1,683) | (1,799) |
Regulated |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Accumulated depreciation and amortization | $ (50,544) | $ (47,611) |
Regulated | Electric generation, distribution and transmission |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Equipment, estimated useful life, years | 39 years | 40 years |
Plant - transmission and distribution | $ 126,016 | $ 120,855 |
Regulated | Natural gas transmission and distribution |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Equipment, estimated useful life, years | 56 years | 54 years |
Plant - transmission and distribution | $ 13,174 | $ 12,079 |
Regulated | Other buildings and improvements |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Equipment, estimated useful life, years | 40 years | 37 years |
Other buildings and improvements | $ 2,537 | $ 1,921 |
Nonregulated |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Accumulated depreciation and amortization | (1,556) | (1,493) |
Accumulated amortization of finance leases | $ 1 | $ 1 |
Nonregulated | Other buildings and improvements |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Equipment, estimated useful life, years | 10 years | 11 years |
Other buildings and improvements | $ 369 | $ 401 |
Duke Energy Carolinas |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Land | 565 | 543 |
Other buildings and improvements | 1,368 | 1,323 |
Equipment | 710 | 614 |
Construction in process | 2,671 | 2,078 |
Total property, plant and equipment | 54,650 | 51,874 |
Facilities to be retired, net | 0 | 102 |
Total net property, plant and equipment | 35,981 | 34,122 |
Finance leases, gross | 335 | 335 |
Accumulated amortization of finance leases | 51 | 33 |
Capitalized Interest Costs [Abstract] |  |  |
Capitalized interest | 50 | 29 | 28
Duke Energy Carolinas | Nuclear fuel |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Nuclear fuel | 1,723 | 1,856 |
Accumulated depreciation and amortization | (934) | (1,064) |
Duke Energy Carolinas | Regulated |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Accumulated depreciation and amortization | (18,669) | (17,854) |
Duke Energy Carolinas | Regulated | Electric generation, distribution and transmission |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Plant - transmission and distribution | 46,640 | 44,910 |
Duke Energy Carolinas | Regulated | Other buildings and improvements |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Other buildings and improvements | 973 | 550 |
Progress Energy |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Land | 993 | 957 |
Other buildings and improvements | 1,943 | 1,563 |
Equipment | 936 | 791 |
Construction in process | 3,073 | 2,297 |
Total property, plant and equipment | 64,822 | 60,894 |
Facilities to be retired, net |  | 26 |
Total net property, plant and equipment | 44,238 | 41,706 |
Finance leases, gross | 674 | 729 |
Accumulated amortization of finance leases | 233 | 178 |
Capitalized Interest Costs [Abstract] |  |  |
Capitalized interest | 26 | 20 | 17
Progress Energy | Nuclear fuel |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Nuclear fuel | 1,358 | 1,325 |
Accumulated depreciation and amortization | (749) | (735) |
Progress Energy | Regulated |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Accumulated depreciation and amortization | (20,584) | (19,214) |
Progress Energy | Regulated | Electric generation, distribution and transmission |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Plant - transmission and distribution | 55,872 | 53,447 |
Progress Energy | Regulated | Other buildings and improvements |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Other buildings and improvements | 647 | 514 |
Duke Energy Progress |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Land | 496 | 482 |
Other buildings and improvements | 1,460 | 1,115 |
Equipment | 567 | 497 |
Construction in process | 1,317 | 954 |
Total property, plant and equipment | 38,875 | 37,018 |
Facilities to be retired, net |  | 26 |
Total net property, plant and equipment | 24,674 | 23,657 |
Finance leases, gross | 590 | 627 |
Accumulated amortization of finance leases | 81 | 45 |
Capitalized Interest Costs [Abstract] |  |  |
Capitalized interest | 19 | 14 | 12
Duke Energy Progress | Nuclear fuel |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Nuclear fuel | 1,358 | 1,325 |
Accumulated depreciation and amortization | (749) | (735) |
Duke Energy Progress | Regulated |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Accumulated depreciation and amortization | (14,201) | (13,387) |
Duke Energy Progress | Regulated | Electric generation, distribution and transmission |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Plant - transmission and distribution | 33,336 | 32,417 |
Duke Energy Progress | Regulated | Other buildings and improvements |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Other buildings and improvements | 341 | 228 |
Duke Energy Florida |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Land | 497 | 475 |
Other buildings and improvements | 476 | 437 |
Equipment | 369 | 294 |
Construction in process | 1,756 | 1,343 |
Total property, plant and equipment | 25,940 | 23,865 |
Total net property, plant and equipment | 19,563 | 18,046 |
Finance leases, gross | 84 | 102 |
Accumulated amortization of finance leases | 152 | 133 |
Capitalized Interest Costs [Abstract] |  |  |
Capitalized interest | 7 | 6 | 5
Duke Energy Florida | Regulated |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Accumulated depreciation and amortization | (6,377) | (5,819) |
Duke Energy Florida | Regulated | Electric generation, distribution and transmission |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Plant - transmission and distribution | 22,536 | 21,030 |
Duke Energy Florida | Regulated | Other buildings and improvements |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Other buildings and improvements | 306 | 286 |
Duke Energy Ohio |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Land | 230 | 219 |
Other buildings and improvements | 380 | 287 |
Equipment | 441 | 403 |
Construction in process | 375 | 515 |
Total property, plant and equipment | 12,497 | 11,725 |
Facilities to be retired, net |  | 6 |
Total net property, plant and equipment | 9,247 | 8,625 |
Capitalized Interest Costs [Abstract] |  |  |
Capitalized interest | 14 | 20 | 26
Duke Energy Ohio | Regulated |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Accumulated depreciation and amortization | (3,250) | (3,106) |
Duke Energy Ohio | Regulated | Electric generation, distribution and transmission |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Plant - transmission and distribution | 6,900 | 6,573 |
Duke Energy Ohio | Regulated | Natural gas transmission and distribution |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Plant - transmission and distribution | 3,773 | 3,347 |
Duke Energy Ohio | Regulated | Other buildings and improvements |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Other buildings and improvements | 398 | 381 |
Duke Energy Indiana |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Land | 124 | 122 |
Other buildings and improvements | 320 | 253 |
Equipment | 356 | 262 |
Construction in process | 381 | 460 |
Total property, plant and equipment | 18,121 | 17,343 |
Total net property, plant and equipment | 12,100 | 11,760 |
Finance leases, gross | 10 | 10 |
Accumulated amortization of finance leases | 4 | 3 |
Capitalized Interest Costs [Abstract] |  |  |
PISCC Amortization |  | (17) |
Capitalized interest | 3 |  | 10
Duke Energy Indiana | PISCC Amortization |  |  |
Capitalized Interest Costs [Abstract] |  |  |
PISCC Amortization |  | 24 |
Duke Energy Indiana | Debt Component |  |  |
Capitalized Interest Costs [Abstract] |  |  |
Capitalized interest |  | 7 |
Duke Energy Indiana | Regulated |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Accumulated depreciation and amortization | (6,021) | (5,583) |
Duke Energy Indiana | Regulated | Electric generation, distribution and transmission |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Plant - transmission and distribution | 16,604 | 15,925 |
Duke Energy Indiana | Regulated | Other buildings and improvements |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Other buildings and improvements | 336 | 321 |
Piedmont |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Land | 295 | 279 |
Other buildings and improvements | 387 | 368 |
Equipment | 125 | 122 |
Construction in process | 478 | 262 |
Total property, plant and equipment | 10,869 | 9,918 |
Facilities to be retired, net | 9 | 11 |
Total net property, plant and equipment | 8,797 | 8,030 |
Capitalized Interest Costs [Abstract] |  |  |
Capitalized interest | 4 | 9 | $ 8
Piedmont | Regulated |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Accumulated depreciation and amortization | (2,081) | (1,899) |
Piedmont | Regulated | Natural gas transmission and distribution |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Plant - transmission and distribution | 9,401 | 8,732 |
Piedmont | Regulated | Other buildings and improvements |  |  |
Public Utilities, Property, Plant and Equipment, Net [Abstract] |  |  |
Other buildings and improvements | $ 183 | $ 155 |

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