XML 137 R83.htm IDEA: XBRL DOCUMENT
v3.25.4

Business Segments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Segment Reporting Information [Line Items] |
Business Segment Data | Business segment information is presented in the following tables.
| Year Ended December 31, 2025
| Electric |  | Gas |  |  |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  |  |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  |  |  | Segments |  | Other |  | Eliminations |  | Total
Unaffiliated revenues | $ | 29,297 |  |  | $ | 2,912 |  |  |  |  | $ | 32,209 |  |  | $ | 28 |  |  | $ | — |  |  | $ | 32,237 |
Intersegment revenues | 60 |  |  | 91 |  |  |  |  | 151 |  |  | 137 |  |  | (288) |  |  | — |
Total operating revenues | $ | 29,357 |  |  | $ | 3,003 |  |  |  |  | $ | 32,360 |  |  | $ | 165 |  |  | $ | (288) |  |  | $ | 32,237 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 8,138 |  |  | $ | — |  |  |  |  | $ | 8,138 |  |  | $ | — |  |  | $ | (80) |  |  | $ | 8,058 |
Cost of natural gas | — |  |  | 983 |  |  |  |  | 983 |  |  | — |  |  | — |  |  | 983 |
Operation, maintenance and other | 6,414 |  |  | 518 |  |  |  |  | 6,932 |  |  | (35) |  |  | (199) |  |  | 6,698 |
Depreciation and amortization | 5,605 |  |  | 435 |  |  |  |  | 6,040 |  |  | 312 |  |  | (28) |  |  | 6,324 |
Property and other taxes | 1,418 |  |  | 164 |  |  |  |  | 1,582 |  |  | 14 |  |  | 1 |  |  | 1,597 |
Impairment of assets and other charges | (9) |  |  | — |  |  |  |  | (9) |  |  | 5 |  |  | — |  |  | (4) |
Interest expense | 2,132 |  |  | 267 |  |  |  |  | 2,399 |  |  | 1,317 |  |  | (82) |  |  | 3,634 |
Income tax expense (benefit) | 862 |  |  | 146 |  |  |  |  | 1,008 |  |  | (366) |  |  | — |  |  | 642 |
Other Segment Items |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests(a) | 104 |  |  | (1) |  |  |  |  | 103 |  |  | — |  |  | — |  |  | 103 |
Preferred dividends | — |  |  | — |  |  |  |  | — |  |  | 56 |  |  | — |  |  | 56 |
Add: Equity in earnings of unconsolidated affiliates | — |  |  | 15 |  |  |  |  | 15 |  |  | 36 |  |  | — |  |  | 51 |
Add: Other(b) | 644 |  |  | 53 |  |  |  |  | 697 |  |  | 117 |  |  | (100) |  |  | 714 |
Segment income (loss) | $ | 5,337 |  |  | $ | 559 |  |  |  |  | $ | 5,896 |  |  | $ | (985) |  |  | $ | — |  |  | $ | 4,911 |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  | 1 |
Net income available to Duke Energy Corporation Common Stockholders |  |  |  |  |  |  |  |  |  |  |  |  | $ | 4,912 |
Add back: Net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  | 103 |
Add back: Preferred dividends |  |  |  |  |  |  |  |  |  |  |  |  | 56 |
Net Income |  |  |  |  |  |  |  |  |  |  |  |  | $ | 5,071 |
Capital investments expenditures and acquisitions | $ | 12,553 |  |  | $ | 1,114 |  |  |  |  | $ | 13,667 |  |  | $ | 335 |  |  | $ | — |  |  | $ | 14,002 |
Segment assets(c) | 172,427 |  |  | 18,989 |  |  |  |  | 191,416 |  |  | 4,320 |  |  | — |  |  | 195,736 |
(a) Net income (loss) attributable to NCI related to continuing operations. (b) Other for EU&I and GU&I includes Gains on sales of other assets and other, net, and Other income and expenses, net. (c) GU&I includes Assets held for sale balances related to the Piedmont Tennessee Disposal Group. Refer to Note 2 for further information.
| Year Ended December 31, 2024
| Electric |  | Gas |  |  |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  |  |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  |  |  | Segments |  | Other |  | Eliminations |  | Total
Unaffiliated revenues | $ | 28,020 |  |  | $ | 2,299 |  |  |  |  | $ | 30,319 |  |  | $ | 38 |  |  | $ | — |  |  | $ | 30,357 |
Intersegment revenues | 73 |  |  | 91 |  |  |  |  | 164 |  |  | 119 |  |  | (283) |  |  | — |
Total operating revenues | $ | 28,093 |  |  | $ | 2,390 |  |  |  |  | $ | 30,483 |  |  | $ | 157 |  |  | $ | (283) |  |  | $ | 30,357 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 9,285 |  |  | $ | — |  |  |  |  | $ | 9,285 |  |  | $ | — |  |  | $ | (79) |  |  | $ | 9,206 |
Cost of natural gas | — |  |  | 565 |  |  |  |  | 565 |  |  | — |  |  | — |  |  | 565 |
Operation, maintenance and other | 5,185 |  |  | 478 |  |  |  |  | 5,663 |  |  | (79) |  |  | (195) |  |  | 5,389 |
Depreciation and amortization | 5,128 |  |  | 400 |  |  |  |  | 5,528 |  |  | 293 |  |  | (28) |  |  | 5,793 |
Property and other taxes | 1,305 |  |  | 149 |  |  |  |  | 1,454 |  |  | 12 |  |  | — |  |  | 1,466 |
Impairment of assets and other charges | 37 |  |  | — |  |  |  |  | 37 |  |  | 1 |  |  | — |  |  | 38 |
Interest expense | 2,006 |  |  | 256 |  |  |  |  | 2,262 |  |  | 1,245 |  |  | (123) |  |  | 3,384 |
Income tax expense (benefit) | 820 |  |  | 99 |  |  |  |  | 919 |  |  | (329) |  |  | — |  |  | 590 |
Other Segment Items |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests(a) | 88 |  |  | (1) |  |  |  |  | 87 |  |  | — |  |  | — |  |  | 87 |
Preferred dividends | — |  |  | — |  |  |  |  | — |  |  | 106 |  |  | — |  |  | 106 |
Preferred redemption costs | — |  |  | — |  |  |  |  | — |  |  | 16 |  |  | — |  |  | 16 |
Add: Equity in (losses) earnings of unconsolidated affiliates | (11) |  |  | (48) |  |  |  |  | (59) |  |  | 50 |  |  | — |  |  | (9) |
Add: Other(b) | 542 |  |  | 58 |  |  |  |  | 600 |  |  | 229 |  |  | (142) |  |  | 687 |
Segment income (loss)(c)(d)(e) | $ | 4,770 |  |  | $ | 454 |  |  |  |  | $ | 5,224 |  |  | $ | (829) |  |  | $ | — |  |  | $ | 4,395 |
Discontinued operations |  |  |  |  |  |  |  |  |  |  |  |  | 7 |
Net income available to Duke Energy Corporation Common Stockholders |  |  |  |  |  |  |  |  |  |  |  |  | $ | 4,402 |
Add back: Net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  | 90 |
Add back: Preferred dividends |  |  |  |  |  |  |  |  |  |  |  |  | 106 |
Add back: Preferred redemption costs |  |  |  |  |  |  |  |  |  |  |  |  | $ | 16 |
Net Income |  |  |  |  |  |  |  |  |  |  |  |  | $ | 4,614 |
Capital investments expenditures and acquisitions | $ | 10,689 |  |  | $ | 1,313 |  |  |  |  | $ | 12,002 |  |  | $ | 261 |  |  | $ | — |  |  | $ | 12,263 |
Segment assets(f) | 164,010 |  |  | 18,131 |  |  |  |  | 182,141 |  |  | 4,202 |  |  | — |  |  | 186,343 |
(a) Net income (loss) attributable to NCI related to continuing operations. (b) Other for EU&I and GU&I includes Gains on sales of other assets and other, net, and Other income and expenses, net. (c) EU&I includes the following in the referenced captions on the Consolidated Statements of Operations: •$42 million recorde d within Impairment of assets and other charges, $2 million within Operation, maintenance and other, and an $11 million reduction within Interest Expense related to South Carolinas rate case orders for Duke Energy Carolinas and Duke Energy Progress. See Note 4 for further information. •$29 million recorded as a reduction of Operating revenues and $4 million as a reduction within Noncontrolling interests related to a Duke Energy Indiana regulatory liability associated with certain employee post-retirement benefits. See Note 4 for further information. •$17 million recorded as a reduction of Operating revenues related to nonrecurring customer billing adjustments as a result of implementation of a new customer system. •$15 million recorded within Equity in (losses) earnings of unconsolidated affiliates, primarily related to impairments for certain joint venture electric transmission projects, and $4 million within Gains on sales of other assets and other, net. (d) GU&I includes $1 million recorded within Operation, maintenance and other and $3 million as a charge within Other income and expenses on the Consolidated Statements of Operations related to nonrecurring customer billing adjustments as a result of implementation of a new customer system. Additionally, GU&I includes $54 million recorded within Equity in (losses) earnings of unconsolidated affiliates on the Consolidated Statements of Operations related to impairments for certain renewable natural gas investments. See Note 13 for further information. (e) Other includes $16 million recorded as Preferred Redemption Costs on the Consolidated Statements of Operations related to the redemption of Series B Preferred Stock. See Note 20 for further information. Additionally, Other includes $23 million recorded within Operation, maintenance and other on the Consolidated Statements of Operations related to an insurance deductible for Hurricane Helene property losses. (f) GU&I includes Assets held for sale balances related to the Piedmont Tennessee Disposal Group. Refer to Note 2 for further information.
| Year Ended December 31, 2023
| Electric |  | Gas |  |  |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  |  |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  |  |  | Segments |  | Other |  | Eliminations |  | Total
Unaffiliated revenues | $ | 26,846 |  |  | $ | 2,177 |  |  |  |  | $ | 29,023 |  |  | $ | 37 |  |  | $ | — |  |  | $ | 29,060 |
Intersegment revenues | 75 |  |  | 89 |  |  |  |  | 164 |  |  | 97 |  |  | (261) |  |  | — |
Total operating revenues | $ | 26,921 |  |  | $ | 2,266 |  |  |  |  | $ | 29,187 |  |  | $ | 134 |  |  | $ | (261) |  |  | $ | 29,060 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 9,164 |  |  | $ | — |  |  |  |  | $ | 9,164 |  |  | $ | — |  |  | $ | (78) |  |  | $ | 9,086 |
Cost of natural gas | — |  |  | 593 |  |  |  |  | 593 |  |  | — |  |  | — |  |  | 593 |
Operation, maintenance and other | 5,309 |  |  | 455 |  |  |  |  | 5,764 |  |  | 36 |  |  | (175) |  |  | 5,625 |
Depreciation and amortization | 4,684 |  |  | 349 |  |  |  |  | 5,033 |  |  | 248 |  |  | (28) |  |  | 5,253 |
Property and other taxes | 1,320 |  |  | 129 |  |  |  |  | 1,449 |  |  | (49) |  |  | — |  |  | 1,400 |
Impairment of assets and other charges | 75 |  |  | (4) |  |  |  |  | 71 |  |  | 14 |  |  | — |  |  | 85 |
Interest expense | 1,850 |  |  | 217 |  |  |  |  | 2,067 |  |  | 1,097 |  |  | (150) |  |  | 3,014 |
Income tax expense (benefit) | 742 |  |  | 116 |  |  |  |  | 858 |  |  | (420) |  |  | — |  |  | 438 |
Other Segment Items |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests(a) | 99 |  |  | (2) |  |  |  |  | 97 |  |  | — |  |  | — |  |  | 97 |
Preferred dividends | — |  |  | — |  |  |  |  | — |  |  | 106 |  |  | — |  |  | 106 |
Add: Equity in earnings of unconsolidated affiliates | 7 |  |  | 40 |  |  |  |  | 47 |  |  | 66 |  |  | — |  |  | 113 |
Add: Other(b) | 538 |  |  | 66 |  |  |  |  | 604 |  |  | 216 |  |  | (170) |  |  | 650 |
Segment income (loss)(c)(d) | $ | 4,223 |  |  | $ | 519 |  |  |  |  | $ | 4,742 |  |  | $ | (616) |  |  | $ | — |  |  | $ | 4,126 |
Discontinued operations |  |  |  |  |  |  |  |  |  |  |  |  | (1,391) |
Net income available to Duke Energy Corporation Common Stockholders |  |  |  |  |  |  |  |  |  |  |  |  | $ | 2,735 |
Add back: Net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  | 33 |
Add back: Preferred dividends |  |  |  |  |  |  |  |  |  |  |  |  | 106 |
Net Income |  |  |  |  |  |  |  |  |  |  |  |  | $ | 2,874 |
Capital investments expenditures and acquisitions(e) | $ | 10,135 |  |  | $ | 1,492 |  |  |  |  | $ | 11,627 |  |  | $ | 995 |  |  | $ | — |  |  | $ | 12,622 |
Segment assets(f) | 155,449 |  |  | 17,349 |  |  |  |  | 172,798 |  |  | 4,095 |  |  | — |  |  | 176,893 |
(a) Net income (loss) attributable to NCI related to continuing operations. (b) Other for EU&I and GU&I includes Gains on sales of other assets and other, net, and Other income and expenses, net. (c) EU&I includes $35 million recorded within Impairment of assets and other charges and $8 million within Operation, maintenance and other primarily related to the North Carolina rate case order on Duke Energy Carolinas' Consolidated Statements of Operations; it also includes $33 million recorded within Impairment of assets and other charges and $8 million within Operation, maintenance and other primarily related to the North Carolina rate case order on Duke Energy Progress' Consolidated Statements of Operations. See Note 4 for additional information. (d) Other includes $110 million recorded within Operation, maintenance and other and $14 million within Impairment of assets and other charges primarily related to strategic repositioning as the Company transitions to a fully regulated utility on the Consolidated Statements of Operations. See Note 21 for additional information. (e) Other includes capital investments expenditures and acquisitions related to the Commercial Renewables Disposal Groups. (f) GU&I includes Assets held for sale balances related to the Piedmont Tennessee Disposal Group and Other includes Assets held for sale balances related to the Commercial Renewables Disposal Groups. See Note 2 for further information.
Schedule of Revenue, By Products and Services | Products and Services The following table summarizes revenues of the reportable segments by type.
| Retail |  | Wholesale |  | Retail |  |  |  |  |  | Total
(in millions) | Electric |  | Electric |  | Natural Gas |  |  |  | Other |  | Revenues
2025 |  |  |  |  |  |  |  |  |  |  |
Electric Utilities and Infrastructure | $ | 25,504 |  |  | $ | 2,423 |  |  | $ | — |  |  |  |  | $ | 1,430 |  |  | $ | 29,357 |
Gas Utilities and Infrastructure | — |  |  | — |  |  | 2,782 |  |  |  |  | 221 |  |  | 3,003 |
Total Reportable Segments | $ | 25,504 |  |  | $ | 2,423 |  |  | $ | 2,782 |  |  |  |  | $ | 1,651 |  |  | $ | 32,360 |
2024 |  |  |  |  |  |  |  |  |  |  |
Electric Utilities and Infrastructure | $ | 24,593 |  |  | $ | 2,219 |  |  | $ | — |  |  |  |  | $ | 1,281 |  |  | $ | 28,093 |
Gas Utilities and Infrastructure | — |  |  | — |  |  | 2,320 |  |  |  |  | 70 |  |  | 2,390 |
Total Reportable Segments | $ | 24,593 |  |  | $ | 2,219 |  |  | $ | 2,320 |  |  |  |  | $ | 1,351 |  |  | $ | 30,483 |
2023 |  |  |  |  |  |  |  |  |  |  |
Electric Utilities and Infrastructure | $ | 23,484 |  |  | $ | 2,193 |  |  | $ | — |  |  |  |  | $ | 1,244 |  |  | $ | 26,921 |
Gas Utilities and Infrastructure | — |  |  | — |  |  | 2,199 |  |  |  |  | 67 |  |  | 2,266 |
Total Reportable Segments | $ | 23,484 |  |  | $ | 2,193 |  |  | $ | 2,199 |  |  |  |  | $ | 1,311 |  |  | $ | 29,187 |
Duke Energy Carolinas |
Segment Reporting Information [Line Items] |
Business Segment Data | Duke Energy Carolinas has one reportable segment, EU&I. EU&I generates, distributes and sells electricity in North Carolina and South Carolina. EU&I conducts operations primarily through Duke Energy Carolinas. The remainder of Duke Energy Carolinas' operations is presented as Other.
|  | Year Ended December 31, 2025
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 9,713 |  | $ | — |  | $ | 9,713 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 2,649 |  | $ | — |  | $ | 2,649 |
Operation, maintenance and other |  | 1,959 |  | 43 |  | 2,002 |
Depreciation and amortization |  | 1,903 |  | — |  | 1,903 |
Property and other taxes |  | 349 |  | — |  | 349 |
Impairment of assets and other charges |  | (11) |  | — |  | (11) |
Interest expense |  | 783 |  | — |  | 783 |
Income tax expense (benefit) |  | 205 |  | (11) |  | 194 |
Add: Other segment items(a) |  | 267 |  | (3) |  | 264 |
Segment income (loss) / Net income |  | $ | 2,143 |  | $ | (35) |  | $ | 2,108 |
Capital expenditures |  | $ | 4,477 |  | $ | — |  | $ | 4,477 |
Segment assets |  | 58,775 |  | 400 |  | 59,175 |
|  | Year Ended December 31, 2024
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 9,718 |  | $ | — |  | $ | 9,718 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 3,251 |  | $ | — |  | $ | 3,251 |
Operation, maintenance and other |  | 1,710 |  | 30 |  | 1,740 |
Depreciation and amortization |  | 1,768 |  | — |  | 1,768 |
Property and other taxes |  | 346 |  | — |  | 346 |
Impairment of assets and other charges |  | 31 |  | — |  | 31 |
Interest expense |  | 722 |  | — |  | 722 |
Income tax expense (benefit) |  | 233 |  | (7) |  | 226 |
Add: Other segment items(a) |  | 252 |  | (3) |  | 249 |
Segment income (loss) / Net income |  | $ | 1,909 |  | $ | (26) |  | $ | 1,883 |
Capital expenditures |  | $ | 3,966 |  | $ | — |  | $ | 3,966 |
Segment assets |  | 54,782 |  | 223 |  | 55,005 |
|  | Year Ended December 31, 2023
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 8,288 |  | $ | — |  | $ | 8,288 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 2,524 |  | $ | — |  | $ | 2,524 |
Operation, maintenance and other |  | 1,689 |  | 85 |  | 1,774 |
Depreciation and amortization |  | 1,593 |  | — |  | 1,593 |
Property and other taxes |  | 320 |  | — |  | 320 |
Impairment of assets and other charges |  | 44 |  | — |  | 44 |
Interest expense |  | 686 |  | — |  | 686 |
Income tax expense (benefit) |  | 162 |  | (21) |  | 141 |
Add: Other segment items(a) |  | 267 |  | (3) |  | 264 |
Segment income (loss) / Net income |  | $ | 1,537 |  | $ | (67) |  | $ | 1,470 |
Capital expenditures |  | $ | 3,733 |  | $ | — |  | $ | 3,733 |
Segment assets |  | 51,908 |  | 202 |  | 52,110 |
(a) Other segment items includes Gains on sales of other assets and other, net, and Other income and expenses, net.
Progress Energy |
Segment Reporting Information [Line Items] |
Business Segment Data | Progress Energy has one reportable segment, EU&I. EU&I generates, distributes and sells electricity in North Carolina, South Carolina and Florida. EU&I conducts operations primarily through its wholly owned subsidiaries, Duke Energy Progress and Duke Energy Florida. The remainder of Progress Energy's operations is presented as Other.
|  | Year Ended December 31, 2025
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 14,491 |  | $ | 18 |  | $ | 14,509 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 4,267 |  | $ | — |  | $ | 4,267 |
Operation, maintenance and other |  | 3,280 |  | 55 |  | 3,335 |
Depreciation and amortization |  | 2,543 |  | — |  | 2,543 |
Property and other taxes |  | 658 |  | (1) |  | 657 |
Impairment of assets and other charges |  | 2 |  | — |  | 2 |
Interest expense |  | 1,005 |  | 114 |  | 1,119 |
Income tax expense (benefit) |  | 523 |  | (38) |  | 485 |
Add: Other segment items(a) |  | 291 |  | 23 |  | 314 |
Segment income (loss) / Net income |  | $ | 2,504 |  | $ | (89) |  | $ | 2,415 |
Capital expenditures |  | $ | 6,125 |  | $ | — |  | $ | 6,125 |
Segment assets |  | 71,685 |  | 4,153 |  | 75,838 |
|  | Year Ended December 31, 2024
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 13,612 |  | $ | 21 |  | $ | 13,633 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 4,755 |  | $ | — |  | $ | 4,755 |
Operation, maintenance and other |  | 2,413 |  | 50 |  | 2,463 |
Depreciation and amortization |  | 2,393 |  | — |  | 2,393 |
Property and other taxes |  | 617 |  | — |  | 617 |
Impairment of assets and other charges |  | 6 |  | — |  | 6 |
Interest expense |  | 949 |  | 115 |  | 1,064 |
Income tax expense (benefit) |  | 465 |  | (39) |  | 426 |
Add: Other segment items(a) |  | 224 |  | 38 |  | 262 |
Segment income (loss) / Net income |  | $ | 2,238 |  | $ | (67) |  | $ | 2,171 |
Capital expenditures |  | $ | 5,252 |  | $ | — |  | $ | 5,252 |
Segment assets |  | 67,951 |  | 3,685 |  | 71,636 |
|  | Year Ended December 31, 2023
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 13,524 |  | $ | 20 |  | $ | 13,544 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 5,026 |  | $ | — |  | $ | 5,026 |
Operation, maintenance and other |  | 2,554 |  | 82 |  | 2,636 |
Depreciation and amortization |  | 2,151 |  | — |  | 2,151 |
Property and other taxes |  | 644 |  | — |  | 644 |
Impairment of assets and other charges |  | 28 |  | — |  | 28 |
Interest expense |  | 840 |  | 114 |  | 954 |
Income tax expense (benefit) |  | 426 |  | (49) |  | 377 |
Add: Other segment items(a) |  | 210 |  | 18 |  | 228 |
Segment income (loss) / Net income |  | $ | 2,065 |  | $ | (109) |  | $ | 1,956 |
Capital expenditures |  | $ | 4,917 |  | $ | — |  | $ | 4,917 |
Segment assets |  | 63,182 |  | 3,912 |  | 67,094 |
(a) Other segment items includes Gains on sales of other assets and other, net, and Other income and expenses, net.
Duke Energy Progress |
Segment Reporting Information [Line Items] |
Business Segment Data | Duke Energy Progress has one reportable segment, EU&I. EU&I generates, distributes and sells electricity in North Carolina and South Carolina. EU&I conducts operations primarily through Duke Energy Progress. The remainder of Duke Energy Progress' operations is presented as Other.
|  | Year Ended December 31, 2025
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 7,386 |  | $ | — |  | $ | 7,386 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 2,518 |  | $ | — |  | $ | 2,518 |
Operation, maintenance and other |  | 1,431 |  | 24 |  | 1,455 |
Depreciation and amortization |  | 1,406 |  | — |  | 1,406 |
Property and other taxes |  | 172 |  | — |  | 172 |
Impairment of assets and other charges |  | 2 |  | — |  | 2 |
Interest expense |  | 526 |  | — |  | 526 |
Income tax expense (benefit) |  | 229 |  | (6) |  | 223 |
Add: Other segment items(a) |  | 200 |  | (2) |  | 198 |
Segment income (loss) / Net income |  | $ | 1,302 |  | $ | (20) |  | $ | 1,282 |
Capital expenditures |  | $ | 3,428 |  | $ | — |  | $ | 3,428 |
Segment assets |  | 42,163 |  | 364 |  | 42,527 |
|  | Year Ended December 31, 2024
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 7,017 |  | $ | — |  | $ | 7,017 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 2,409 |  | $ | — |  | $ | 2,409 |
Operation, maintenance and other |  | 1,370 |  | 18 |  | 1,388 |
Depreciation and amortization |  | 1,336 |  | — |  | 1,336 |
Property and other taxes |  | 177 |  | — |  | 177 |
Impairment of assets and other charges |  | 6 |  | — |  | 6 |
Interest expense |  | 492 |  | 1 |  | 493 |
Income tax expense (benefit) |  | 194 |  | (5) |  | 189 |
Add: Other segment items(a) |  | 138 |  | 7 |  | 145 |
Segment income (loss) / Net income |  | $ | 1,171 |  | $ | (7) |  | $ | 1,164 |
Capital expenditures |  | $ | 2,803 |  | $ | — |  | $ | 2,803 |
Segment assets |  | 39,402 |  | 91 |  | 39,493 |
|  | Year Ended December 31, 2023
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 6,488 |  | $ | — |  | $ | 6,488 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 2,203 |  | $ | — |  | $ | 2,203 |
Operation, maintenance and other |  | 1,342 |  | 37 |  | 1,379 |
Depreciation and amortization |  | 1,266 |  | — |  | 1,266 |
Property and other taxes |  | 164 |  | — |  | 164 |
Impairment of assets and other charges |  | 29 |  | — |  | 29 |
Interest expense |  | 427 |  | — |  | 427 |
Income tax expense (benefit) |  | 158 |  | (9) |  | 149 |
Add: Other segment items(a) |  | 128 |  | (1) |  | 127 |
Segment income (loss) / Net income |  | $ | 1,027 |  | $ | (29) |  | $ | 998 |
Capital expenditures |  | $ | 2,387 |  | $ | — |  | $ | 2,387 |
Segment assets |  | 36,820 |  | 104 |  | 36,924 |
(a) Other segment items includes Gains on sales of other assets and other, net, and Other income and expenses, net.
Duke Energy Florida |
Segment Reporting Information [Line Items] |
Business Segment Data | Duke Energy Florida has one reportable segment, EU&I. EU&I generates, distributes and sells electricity in Florida. EU&I conducts operations primarily through Duke Energy Florida. The remainder of Duke Energy Florida's operations is presented as Other.
|  | Year Ended December 31, 2025
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 7,105 |  | $ | — |  | $ | 7,105 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 1,749 |  | $ | — |  | $ | 1,749 |
Operation, maintenance and other |  | 1,849 |  | 16 |  | 1,865 |
Depreciation and amortization |  | 1,137 |  | — |  | 1,137 |
Property and other taxes |  | 486 |  | — |  | 486 |
Interest expense |  | 479 |  | — |  | 479 |
Income tax expense (benefit) |  | 294 |  | (5) |  | 289 |
Add: Other segment items(a) |  | 91 |  | 2 |  | 93 |
Segment income (loss) / Net income |  | $ | 1,202 |  | $ | (9) |  | $ | 1,193 |
Capital expenditures |  | $ | 2,698 |  | $ | — |  | $ | 2,698 |
Segment assets |  | 29,522 |  | 134 |  | 29,656 |
|  | Year Ended December 31, 2024
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 6,595 |  | $ | — |  | $ | 6,595 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 2,346 |  | $ | — |  | $ | 2,346 |
Operation, maintenance and other |  | 1,043 |  | 12 |  | 1,055 |
Depreciation and amortization |  | 1,057 |  | — |  | 1,057 |
Property and other taxes |  | 440 |  | — |  | 440 |
Interest expense |  | 457 |  | — |  | 457 |
Income tax expense (benefit) |  | 271 |  | (3) |  | 268 |
Add: Other segment items(a) |  | 86 |  | 3 |  | 89 |
Segment income (loss) / Net income |  | $ | 1,067 |  | $ | (6) |  | $ | 1,061 |
Capital expenditures |  | $ | 2,449 |  | $ | — |  | $ | 2,449 |
Segment assets |  | 28,549 |  | 20 |  | 28,569 |
|  | Year Ended December 31, 2023
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 7,036 |  | $ | — |  | $ | 7,036 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 2,823 |  | $ | — |  | $ | 2,823 |
Operation, maintenance and other |  | 1,212 |  | 27 |  | 1,239 |
Depreciation and amortization |  | 885 |  | — |  | 885 |
Property and other taxes |  | 480 |  | — |  | 480 |
Impairment of assets and other charges |  | (1) |  | — |  | (1) |
Interest expense |  | 413 |  | — |  | 413 |
Income tax expense (benefit) |  | 268 |  | (7) |  | 261 |
Add: Other segment items(a) |  | 82 |  | (2) |  | 80 |
Segment income (loss) / Net income |  | $ | 1,038 |  | $ | (22) |  | $ | 1,016 |
Capital expenditures |  | $ | 2,529 |  | $ | — |  | $ | 2,529 |
Segment assets |  | 26,362 |  | 239 |  | 26,601 |
(a) Other segment items includes Gains on sales of other assets and other, net, and Other income and expenses, net.
Duke Energy Ohio |
Segment Reporting Information [Line Items] |
Business Segment Data | Duke Energy Ohio has two reportable segments, EU&I and GU&I. EU&I transmits and distributes electricity in portions of Ohio and generates, distributes and sells electricity in portions of Northern Kentucky. GU&I transports and sells natural gas in portions of Ohio and Northern Kentucky. Both reportable segments conduct operations primarily through Duke Energy Ohio and its wholly owned subsidiary, Duke Energy Kentucky. The remainder of Duke Energy Ohio's operations is presented as Other.
| Year Ended December 31, 2025
| Electric |  | Gas |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Reportable |  | Eliminations/ |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Segments |  | Other |  |  |  | Total
Total operating revenues | $ | 2,045 |  |  | $ | 752 |  |  | $ | 2,797 |  |  | — |  |  |  |  | $ | 2,797 |
Less: |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 626 |  |  | $ | — |  |  | $ | 626 |  |  | $ | — |  |  |  |  | $ | 626 |
Cost of natural gas | — |  |  | 199 |  |  | 199 |  |  | — |  |  |  |  | 199 |
Operation, maintenance and other | 366 |  |  | 116 |  |  | 482 |  |  | 8 |  |  |  |  | 490 |
Depreciation and amortization | 318 |  |  | 147 |  |  | 465 |  |  | 1 |  |  |  |  | 466 |
Property and other taxes | 335 |  |  | 97 |  |  | 432 |  |  | — |  |  |  |  | 432 |
Interest expense | 131 |  |  | 71 |  |  | 202 |  |  | 1 |  |  |  |  | 203 |
Income tax expense (benefit) | 43 |  |  | 27 |  |  | 70 |  |  | (2) |  |  |  |  | 68 |
Add: Other segment items(a) | 17 |  |  | 8 |  |  | 25 |  |  | — |  |  |  |  | 25 |
Segment income (loss) / Net income | $ | 243 |  |  | $ | 103 |  |  | $ | 346 |  |  | $ | (8) |  |  |  |  | $ | 338 |
Capital expenditures | $ | 600 |  |  | $ | 329 |  |  | $ | 929 |  |  | $ | — |  |  |  |  | $ | 929 |
Segment assets | 8,575 |  |  | 4,736 |  |  | 13,311 |  |  | 135 |  |  |  |  | 13,446 |
| Year Ended December 31, 2024
| Electric |  | Gas |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Reportable |  | Eliminations/ |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Segments |  | Other |  |  |  | Total
Total operating revenues | $ | 1,905 |  |  | $ | 640 |  |  | $ | 2,545 |  |  | $ | — |  |  |  |  | $ | 2,545 |
Less: |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 538 |  |  | $ | — |  |  | $ | 538 |  |  | $ | — |  |  |  |  | $ | 538 |
Cost of natural gas | — |  |  | 142 |  |  | 142 |  |  | — |  |  |  |  | 142 |
Operation, maintenance and other | 366 |  |  | 109 |  |  | 475 |  |  | 10 |  |  |  |  | 485 |
Depreciation and amortization | 273 |  |  | 131 |  |  | 404 |  |  | (1) |  |  |  |  | 403 |
Property and other taxes | 306 |  |  | 94 |  |  | 400 |  |  | — |  |  |  |  | 400 |
Interest expense | 126 |  |  | 68 |  |  | 194 |  |  | (2) |  |  |  |  | 192 |
Income tax expense (benefit) | 47 |  |  | 18 |  |  | 65 |  |  | (1) |  |  |  |  | 64 |
Add: Other segment items(a) | 15 |  |  | 5 |  |  | 20 |  |  | — |  |  |  |  | 20 |
Segment income (loss) / Net income | $ | 264 |  |  | $ | 83 |  |  | $ | 347 |  |  | $ | (6) |  |  |  |  | $ | 341 |
Capital expenditures | $ | 535 |  |  | $ | 280 |  |  | $ | 815 |  |  | $ | — |  |  |  |  | $ | 815 |
Segment assets | 8,211 |  |  | 4,506 |  |  | 12,717 |  |  | 51 |  |  |  |  | 12,768 |
| Year Ended December 31, 2023
| Electric |  | Gas |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Reportable |  | Eliminations/ |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Segments |  | Other |  |  |  | Total
Total operating revenues | $ | 1,868 |  |  | $ | 639 |  |  | $ | 2,507 |  |  | $ | — |  |  |  |  | $ | 2,507 |
Less: |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 608 |  |  | $ | — |  |  | $ | 608 |  |  | $ | — |  |  |  |  | $ | 608 |
Cost of natural gas | — |  |  | 163 |  |  | 163 |  |  | — |  |  |  |  | 163 |
Operation, maintenance and other | 351 |  |  | 118 |  |  | 469 |  |  | 9 |  |  |  |  | 478 |
Depreciation and amortization | 257 |  |  | 110 |  |  | 367 |  |  | — |  |  |  |  | 367 |
Property and other taxes | 294 |  |  | 70 |  |  | 364 |  |  | — |  |  |  |  | 364 |
Impairment of assets and other charges | 2 |  |  | — |  |  | 2 |  |  | 1 |  |  |  |  | 3 |
Interest expense | 116 |  |  | 53 |  |  | 169 |  |  | — |  |  |  |  | 169 |
Income tax expense (benefit) | 42 |  |  | 23 |  |  | 65 |  |  | (2) |  |  |  |  | 63 |
Add: Other segment items(a) | 29 |  |  | 14 |  |  | 43 |  |  | (1) |  |  |  |  | 42 |
Segment income (loss) / Net income | $ | 227 |  |  | $ | 116 |  |  | $ | 343 |  |  | $ | (9) |  |  |  |  | $ | 334 |
Capital expenditures | $ | 520 |  |  | $ | 419 |  |  | $ | 939 |  |  | $ | — |  |  |  |  | $ | 939 |
Segment assets | 7,978 |  |  | 4,346 |  |  | 12,324 |  |  | (108) |  |  |  |  | 12,216 |
(a) Other segment items for EU&I and GU&I includes Gains on sales of other assets and other, net, and Other income and expenses, net.
Duke Energy Indiana |
Segment Reporting Information [Line Items] |
Business Segment Data | Duke Energy Indiana has one reportable segment, EU&I. EU&I generates, distributes and sells electricity in Indiana. EU&I conducts operations primarily through Duke Energy Indiana. The remainder of Duke Energy Indiana's operations is presented as Other.
|  | Year Ended December 31, 2025
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 3,544 |  | $ | — |  | $ | 3,544 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 1,065 |  | $ | — |  | $ | 1,065 |
Operation, maintenance and other |  | 801 |  | 10 |  | 811 |
Depreciation and amortization |  | 823 |  | — |  | 823 |
Property and other taxes |  | 61 |  | — |  | 61 |
Interest expense |  | 243 |  | — |  | 243 |
Income tax expense (benefit) |  | 85 |  | (3) |  | 82 |
Add: Other segment items(a) |  | 62 |  | (1) |  | 61 |
Segment income (loss) / Net income |  | $ | 528 |  | $ | (8) |  | $ | 520 |
Capital expenditures |  | $ | 1,332 |  | $ | — |  | $ | 1,332 |
Segment assets |  | 16,321 |  | 25 |  | 16,346 |
|  | Year Ended December 31, 2024
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 3,040 |  | $ | — |  | $ | 3,040 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 964 |  | $ | — |  | $ | 964 |
Operation, maintenance and other |  | 666 |  | 5 |  | 671 |
Depreciation and amortization |  | 676 |  | — |  | 676 |
Property and other taxes |  | 50 |  | — |  | 50 |
Interest expense |  | 228 |  | 1 |  | 229 |
Income tax expense (benefit) |  | 72 |  | (1) |  | 71 |
Add: Other segment items(a) |  | 62 |  | — |  | 62 |
Segment income (loss) / Net income |  | $ | 446 |  | $ | (5) |  | $ | 441 |
Capital expenditures |  | $ | 935 |  | $ | — |  | $ | 935 |
Segment assets |  | 15,726 |  | 1 |  | 15,727 |
|  | Year Ended December 31, 2023
|  | Electric |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 3,399 |  | $ | — |  | $ | 3,399 |
Less: |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 1,217 |  | $ | — |  | $ | 1,217 |
Operation, maintenance and other |  | 695 |  | 18 |  | 713 |
Depreciation and amortization |  | 666 |  | — |  | 666 |
Property and other taxes |  | 59 |  | — |  | 59 |
Impairment of assets and other charges |  | (1) |  | 1 |  | — |
Interest expense |  | 213 |  | — |  | 213 |
Income tax expense (benefit) |  | 115 |  | (5) |  | 110 |
Add: Other segment items(a) |  | 77 |  | (1) |  | 76 |
Segment income (loss) / Net income |  | $ | 512 |  | $ | (15) |  | $ | 497 |
Capital expenditures |  | $ | 961 |  | $ | — |  | $ | 961 |
Segment assets |  | 14,966 |  | (155) |  | 14,811 |
(a) Other segment items includes Gains on sales of other assets and other, net, and Other income and expenses, net.
Piedmont |
Segment Reporting Information [Line Items] |
Business Segment Data | Piedmont has one reportable segment, GU&I. GU&I distributes and sells natural gas in North Carolina, South Carolina and Tennessee. GU&I conducts operations primarily through Piedmont. The remainder of Piedmont's operations is presented as Other.
|  | Year Ended December 31, 2025
|  | Gas |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 2,237 |  | $ | — |  | $ | 2,237 |
Less: |  |  |  |
Cost of natural gas |  | $ | 784 |  | $ | — |  | $ | 784 |
Operation, maintenance and other |  | 393 |  | 15 |  | 408 |
Depreciation and amortization |  | 282 |  | — |  | 282 |
Property and other taxes |  | 67 |  | — |  | 67 |
Interest expense |  | 193 |  | — |  | 193 |
Income tax expense (benefit) |  | 115 |  | (3) |  | 112 |
Other Segment Items |  |  |  |
Add: Equity in earnings of unconsolidated affiliates |  | — |  | 8 |  | 8 |
Add: Other(a) |  | 46 |  | (5) |  | 41 |
Segment income (loss) / Net income |  | $ | 449 |  | $ | (9) |  | $ | 440 |
Capital expenditures |  | $ | 807 |  | $ | — |  | $ | 807 |
Segment assets(b) |  | 12,384 |  | 86 |  | 12,470 |
|  | Year Ended December 31, 2024
|  | Gas |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 1,729 |  | $ | — |  | $ | 1,729 |
Less: |  |  |  |
Cost of natural gas |  | $ | 423 |  | $ | — |  | $ | 423 |
Operation, maintenance and other |  | 355 |  | 4 |  | 359 |
Depreciation and amortization |  | 261 |  | — |  | 261 |
Property and other taxes |  | 55 |  | — |  | 55 |
Interest expense |  | 185 |  | — |  | 185 |
Income tax expense (benefit) |  | 94 |  | 1 |  | 95 |
Other Segment Items |  |  |  |
Add: Equity in earnings of unconsolidated affiliates |  | — |  | 8 |  | 8 |
Add: Other(a) |  | 54 |  | — |  | 54 |
Segment income (loss) / Net income |  | $ | 410 |  | $ | 3 |  | $ | 413 |
Capital expenditures |  | $ | 1,025 |  | $ | — |  | $ | 1,025 |
Segment assets(b) |  | 11,707 |  | 92 |  | 11,799 |
|  | Year Ended December 31, 2023
|  | Gas |  |
|  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 1,628 |  | $ | — |  | $ | 1,628 |
Less: |  |  |  |
Cost of natural gas |  | $ | 430 |  | $ | — |  | $ | 430 |
Operation, maintenance and other |  | 336 |  | 8 |  | 344 |
Depreciation and amortization |  | 237 |  | — |  | 237 |
Property and other taxes |  | 59 |  | — |  | 59 |
Impairment of assets and other charges |  | (4) |  | — |  | (4) |
Interest expense |  | 165 |  | — |  | 165 |
Income tax expense (benefit) |  | 84 |  | — |  | 84 |
Other Segment Items |  |  |  |
Add: Equity in earnings of unconsolidated affiliates |  | — |  | 9 |  | 9 |
Add: Other(a) |  | 59 |  | (2) |  | 57 |
Segment income (loss) / Net income |  | $ | 380 |  | $ | (1) |  | $ | 379 |
Capital expenditures |  | $ | 1,036 |  | $ | — |  | $ | 1,036 |
Segment assets(b) |  | 10,978 |  | 89 |  | 11,067 |
(a) Other includes Gains on sales of other assets and other, net, and Other income and expenses, net. (b) GU&I includes Assets held for sale balances related to the Piedmont Tennessee Disposal Group. Refer to Note 2 for further information.

X
- Definition Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-40 + Details
Name: | us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
Name: | us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyCarolinasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_ProgressEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyProgressMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyFloridaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyOhioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyIndianaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_PiedmontNaturalGasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |