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Property, Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2023
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment The composite weighted average depreciation rates, excluding nuclear fuel, are included in the table that follows.
 Years Ended December 31,
 202320222021
Duke Energy 2.9 %3.0 %2.9 %
Duke Energy Carolinas 2.7 %2.7 %2.7 %
Progress Energy 3.3 %3.2 %3.1 %
Duke Energy Progress 3.1 %3.0 %3.0 %
Duke Energy Florida 3.5 %3.5 %3.3 %
Duke Energy Ohio 2.8 %2.9 %2.9 %
Duke Energy Indiana 3.6 %3.6 %3.6 %
Piedmont2.1 %2.1 %2.1 %
The following tables summarize the property, plant and equipment for Duke Energy and its subsidiary registrants.
December 31, 2023
Average
RemainingDukeDukeDukeDukeDuke
Useful LifeDukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)(Years)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Land $2,345 $581 $1,012 $502 $510 $242 $133 $352 
Plant – Regulated
Electric generation, distribution and transmission 40129,985 48,107 57,436 33,171 24,265 7,243 17,199 — 
Natural gas transmission and distribution 5714,130 — — — — 3,993 — 10,137 
Other buildings and improvements 422,887 1,213 677 377 300 421 355 221 
Nuclear fuel 3,303 1,866 1,437 1,437 — — — — 
Equipment 143,409 870 1,104 654 450 474 442 143 
Construction in process 8,372 2,578 3,941 1,661 2,280 427 427 690 
Other126,920 1,455 2,037 1,481 548 410 344 363 
Total property, plant and equipment(a)
171,351 56,670 67,644 39,283 28,353 13,210 18,900 11,906 
Total accumulated depreciation – regulated(b)(c)
(54,323)(19,896)(22,300)(15,227)(7,067)(3,451)(6,501)(2,259)
Total accumulated depreciation – other(d)
(1,715)— — — — — — — 
Facilities to be retired, net2 — — — — — — 2 
Total net property, plant and equipment $115,315 $36,774 $45,344 $24,056 $21,286 $9,759 $12,399 $9,649 
(a)    Includes finance leases of $697 million, $335 million, $615 million, $552 million, $63 million and $10 million at Duke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida and Duke Energy Indiana, respectively, primarily within Plant – Regulated. The Progress Energy, Duke Energy Progress and Duke Energy Florida amounts are net of $292 million, $119 million and $173 million, respectively, of accumulated amortization of finance leases.
(b)    Includes $1,793 million, $991 million, $802 million and $802 million of accumulated amortization of nuclear fuel at Duke Energy, Duke Energy Carolinas, Progress Energy and Duke Energy Progress, respectively.
(c)    Includes accumulated amortization of finance leases of $3 million, $67 million and $4 million at Duke Energy, Duke Energy Carolinas and Duke Energy Indiana, respectively.
(d)    Includes accumulated amortization of finance leases of $7 million at Duke Energy.
December 31, 2022
Average
RemainingDukeDukeDukeDukeDuke
Useful LifeDukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)(Years)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Land $2,232 $565 $993 $496 $497 $230 $124 $295 
Plant – Regulated
Electric generation, distribution and transmission 39126,016 46,640 55,872 33,336 22,536 6,900 16,604 — 
Natural gas transmission and distribution 5613,174 — — — — 3,773 — 9,401 
Other buildings and improvements 402,537 973 647 341 306 398 336 183 
Nuclear fuel 3,081 1,723 1,358 1,358 — — — — 
Equipment 132,959 710 936 567 369 441 356 125 
Construction in process 7,381 2,671 3,073 1,317 1,756 375 381 478 
Other136,459 1,368 1,943 1,460 476 380 320 387 
Total property, plant and equipment(a)
163,839 54,650 64,822 38,875 25,940 12,497 18,121 10,869 
Total accumulated depreciation – regulated(b)(c)
(50,544)(18,669)(20,584)(14,201)(6,377)(3,250)(6,021)(2,081)
Total accumulated depreciation – other(d)
(1,556)— — — — — — — 
Facilities to be retired, net9 — — — — — — 9 
Total net property, plant and equipment $111,748 $35,981 $44,238 $24,674 $19,563 $9,247 $12,100 $8,797 
(a)    Includes finance leases of $816 million, $335 million, $674 million, $590 million, $84 million, and $10 million at Duke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida and Duke Energy Indiana, respectively, primarily within Plant – Regulated. The Progress Energy, Duke Energy Progress and Duke Energy Florida amounts are net of $233 million, $81 million and $152 million, respectively, of accumulated amortization of finance leases.
(b)    Includes $1,683 million, $934 million, $749 million and $749 million of accumulated amortization of nuclear fuel at Duke Energy, Duke Energy Carolinas, Progress Energy and Duke Energy Progress, respectively.
(c)    Includes accumulated amortization of finance leases of $7 million, $51 million, and $4 million at Duke Energy, Duke Energy Carolinas and Duke Energy Indiana, respectively.
(d)    Includes accumulated amortization of finance leases of ($1 million) at Duke Energy.
Duke Energy has continued to execute on its business transformation strategy, including the evaluation of in-office work policies considering the experience with the COVID-19 pandemic and also workforce realignment of roles and responsibilities. In May 2021, Duke Energy management approved the sale of certain properties and entered into an agreement to exit certain leased space on December 31, 2021. The sale of the properties was subject to abandonment accounting and resulted in an impairment charge. Additionally, the exit of the leased space resulted in the impairment of related furniture, fixtures and equipment. During the year ended December 31, 2021, Duke Energy recorded a pretax charge to earnings of $192 million on the Consolidated Statements of Operations, which includes $133 million within Impairment of assets and other charges, $42 million within Operations, maintenance and other and $17 million within Depreciation and amortization.
Schedule of Capitalized Interest
The following table presents capitalized interest, which includes the debt component of AFUDC.
Years Ended December 31,
(in millions)202320222021
Duke Energy$201 $118 $66 
Duke Energy Carolinas62 50 29 
Progress Energy41 26 20 
Duke Energy Progress35 19 14 
Duke Energy Florida6 7 6 
Duke Energy Ohio16 14 20 
Duke Energy Indiana(a)
21 3 (17)
Piedmont8 4 9 
(a)    In 2021, Duke Energy Indiana is primarily compromised of ($24 million) of PISCC amortization, which is partially offset by $7 million of the debt component of AFUDC.