XML 108 R66.htm IDEA: XBRL DOCUMENT
v3.25.3

Business Segments (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2025
Segment Reporting Information [Line Items] |
Business Segment Information | Business segment information is presented in the following tables. Segment assets presented exclude intercompany assets. On a quarterly basis going forward, the Company expects to disclose segment assets as of the prior year end and current interim period end, consistent with the periods presented on the Condensed Consolidated Balance Sheets in each respective Form 10-Q.
| Three Months Ended September 30, 2025
| Electric |  | Gas |  |  |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  |  |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  |  |  | Segments |  | Other |  | Eliminations |  | Total
Unaffiliated revenues | $ | 8,165 |  |  | $ | 371 |  |  |  |  | $ | 8,536 |  |  | $ | 6 |  |  | $ | — |  |  | $ | 8,542 |
Intersegment revenues | 15 |  |  | 23 |  |  |  |  | 38 |  |  | 34 |  |  | (72) |  |  | — |
Total operating revenues | $ | 8,180 |  |  | $ | 394 |  |  |  |  | $ | 8,574 |  |  | $ | 40 |  |  | $ | (72) |  |  | $ | 8,542 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 2,309 |  |  | $ | — |  |  |  |  | $ | 2,309 |  |  | $ | — |  |  | $ | (20) |  |  | $ | 2,289 |
Cost of natural gas | — |  |  | 110 |  |  |  |  | 110 |  |  | — |  |  | — |  |  | 110 |
Operation, maintenance and other | 1,728 |  |  | 125 |  |  |  |  | 1,853 |  |  | (38) |  |  | (53) |  |  | 1,762 |
Depreciation and amortization | 1,448 |  |  | 106 |  |  |  |  | 1,554 |  |  | 79 |  |  | (7) |  |  | 1,626 |
Property and other taxes | 394 |  |  | 41 |  |  |  |  | 435 |  |  | 2 |  |  | 1 |  |  | 438 |
Impairment of assets and other charges | (1) |  |  | — |  |  |  |  | (1) |  |  | — |  |  | 1 |  |  | — |
Interest expense | 522 |  |  | 67 |  |  |  |  | 589 |  |  | 332 |  |  | (19) |  |  | 902 |
Income tax expense (benefit) | 264 |  |  | (10) |  |  |  |  | 254 |  |  | (79) |  |  | 1 |  |  | 176 |
Other Segment Items |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests(a) | 34 |  |  | — |  |  |  |  | 34 |  |  | — |  |  | (1) |  |  | 33 |
Preferred dividends | — |  |  | — |  |  |  |  | — |  |  | 14 |  |  | — |  |  | 14 |
Add: Equity in earnings of unconsolidated affiliates | — |  |  | 5 |  |  |  |  | 5 |  |  | 12 |  |  | (1) |  |  | 16 |
Add: Other(b) | 176 |  |  | 14 |  |  |  |  | 190 |  |  | 33 |  |  | (24) |  |  | 199 |
Segment income (loss) | $ | 1,658 |  |  | $ | (26) |  |  |  |  | $ | 1,632 |  |  | $ | (225) |  |  | $ | — |  |  | $ | 1,407 |
Add back: Net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  | 33 |
Add back: Preferred dividends |  |  |  |  |  |  |  |  |  |  |  |  | 14 |
Net Income |  |  |  |  |  |  |  |  |  |  |  |  | $ | 1,454 |
| Three Months Ended September 30, 2024
| Electric |  | Gas |  |  |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  |  |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  |  |  | Segments |  | Other |  | Eliminations |  | Total
Unaffiliated revenues | $ | 7,833 |  |  | $ | 309 |  |  |  |  | $ | 8,142 |  |  | $ | 12 |  |  | $ | — |  |  | $ | 8,154 |
Intersegment revenues | 19 |  |  | 23 |  |  |  |  | 42 |  |  | 30 |  |  | (72) |  |  | — |
Total operating revenues | $ | 7,852 |  |  | $ | 332 |  |  |  |  | $ | 8,184 |  |  | $ | 42 |  |  | $ | (72) |  |  | $ | 8,154 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 2,664 |  |  | $ | — |  |  |  |  | $ | 2,664 |  |  | $ | — |  |  | $ | (20) |  |  | $ | 2,644 |
Cost of natural gas | — |  |  | 70 |  |  |  |  | 70 |  |  | — |  |  | — |  |  | 70 |
Operation, maintenance and other | 1,387 |  |  | 113 |  |  |  |  | 1,500 |  |  | (44) |  |  | (47) |  |  | 1,409 |
Depreciation and amortization | 1,352 |  |  | 100 |  |  |  |  | 1,452 |  |  | 72 |  |  | (8) |  |  | 1,516 |
Property and other taxes | 345 |  |  | 36 |  |  |  |  | 381 |  |  | 3 |  |  | (1) |  |  | 383 |
Impairment of assets and other charges | (5) |  |  | — |  |  |  |  | (5) |  |  | — |  |  | — |  |  | (5) |
Interest expense | 514 |  |  | 67 |  |  |  |  | 581 |  |  | 321 |  |  | (30) |  |  | 872 |
Income tax expense (benefit) | 244 |  |  | (14) |  |  |  |  | 230 |  |  | (66) |  |  | (1) |  |  | 163 |
Other Segment Items |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests(a) | 31 |  |  | — |  |  |  |  | 31 |  |  | — |  |  | — |  |  | 31 |
Preferred dividends | — |  |  | — |  |  |  |  | — |  |  | 39 |  |  | — |  |  | 39 |
Preferred redemption costs | — |  |  | — |  |  |  |  | — |  |  | 16 |  |  | — |  |  | 16 |
Add: Equity in earnings of unconsolidated affiliates | 2 |  |  | 3 |  |  |  |  | 5 |  |  | 10 |  |  | — |  |  | 15 |
Add: Other(b) | 129 |  |  | 12 |  |  |  |  | 141 |  |  | 67 |  |  | (35) |  |  | 173 |
Segment income (loss)(c)(d) | $ | 1,451 |  |  | $ | (25) |  |  |  |  | $ | 1,426 |  |  | $ | (222) |  |  | $ | — |  |  | $ | 1,204 |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  | 22 |
Net income available to Duke Energy Corporation Common Stockholders |  |  |  |  |  |  |  |  |  |  |  |  | $ | 1,226 |
Add back: Net Income available to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  | 34 |
Add back: Preferred dividends |  |  |  |  |  |  |  |  |  |  |  |  | 39 |
Add back: Preferred redemption costs |  |  |  |  |  |  |  |  |  |  |  |  | 16 |
Net Income |  |  |  |  |  |  |  |  |  |  |  |  | $ | 1,315 |
(a)Net income 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 $17 million recorded within Operating Revenues and GU&I includes $1 million recorded within Operations, maintenance and other and $3 million recorded within Other income and expenses related to nonrecurring customer billing adjustments as a result of implementation of a new customer system. (d) Other includes $16 million recorded as Preferred Redemption Costs related to the redemption of Series B Preferred Stock. Refer to Note 15 for further information.
| Nine Months Ended September 30, 2025
| Electric |  | Gas |  |  |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  |  |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  |  |  | Segments |  | Other |  | Eliminations |  | Total
Unaffiliated revenues | $ | 22,320 |  |  | $ | 1,958 |  |  |  |  | $ | 24,278 |  |  | $ | 21 |  |  | $ | — |  |  | $ | 24,299 |
Intersegment revenues | 45 |  |  | 69 |  |  |  |  | 114 |  |  | 101 |  |  | (215) |  |  | — |
Total operating revenues | $ | 22,365 |  |  | $ | 2,027 |  |  |  |  | $ | 24,392 |  |  | $ | 122 |  |  | $ | (215) |  |  | $ | 24,299 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 6,326 |  |  | $ | — |  |  |  |  | $ | 6,326 |  |  | $ | — |  |  | $ | (60) |  |  | $ | 6,266 |
Cost of natural gas | — |  |  | 642 |  |  |  |  | 642 |  |  | — |  |  | — |  |  | 642 |
Operation, maintenance and other | 4,746 |  |  | 379 |  |  |  |  | 5,125 |  |  | (59) |  |  | (150) |  |  | 4,916 |
Depreciation and amortization | 4,184 |  |  | 325 |  |  |  |  | 4,509 |  |  | 233 |  |  | (21) |  |  | 4,721 |
Property and other taxes | 1,143 |  |  | 129 |  |  |  |  | 1,272 |  |  | 8 |  |  | 1 |  |  | 1,281 |
Impairment of assets and other charges | (2) |  |  | — |  |  |  |  | (2) |  |  | 5 |  |  | — |  |  | 3 |
Interest expense | 1,587 |  |  | 197 |  |  |  |  | 1,784 |  |  | 968 |  |  | (64) |  |  | 2,688 |
Income tax expense (benefit) | 653 |  |  | 77 |  |  |  |  | 730 |  |  | (243) |  |  | 1 |  |  | 488 |
Other Segment Items |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests(a) | 82 |  |  | — |  |  |  |  | 82 |  |  | — |  |  | (1) |  |  | 81 |
Preferred dividends | — |  |  | — |  |  |  |  | — |  |  | 41 |  |  | — |  |  | 41 |
Add: Equity in earnings of unconsolidated affiliates | — |  |  | 11 |  |  |  |  | 11 |  |  | 27 |  |  | — |  |  | 38 |
Add: Other(b) | 482 |  |  | 40 |  |  |  |  | 522 |  |  | 91 |  |  | (79) |  |  | 534 |
Segment income (loss) | $ | 4,128 |  |  | $ | 329 |  |  |  |  | $ | 4,457 |  |  | $ | (713) |  |  | $ | — |  |  | $ | 3,744 |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  | (1) |
Net income available to Duke Energy Corporation Common Stockholders |  |  |  |  |  |  |  |  |  |  |  |  | $ | 3,743 |
Add back: Net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  | 81 |
Add back: Preferred dividends |  |  |  |  |  |  |  |  |  |  |  |  | 41 |
Net Income |  |  |  |  |  |  |  |  |  |  |  |  | $ | 3,865 |
Capital investments expenditures and acquisitions for the nine months ended September 30, 2025 | $ | 8,789 |  |  | $ | 847 |  |  |  |  | $ | 9,636 |  |  | $ | 245 |  |  | $ | — |  |  | $ | 9,881 |
Segment assets as of September 30, 2025(c) | 169,647 |  |  | 18,468 |  |  |  |  | 188,115 |  |  | 4,178 |  |  | — |  |  | 192,293 |
| Nine Months Ended September 30, 2024
| Electric |  | Gas |  |  |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  |  |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  |  |  | Segments |  | Other |  | Eliminations |  | Total
Unaffiliated revenues | $ | 21,420 |  |  | $ | 1,547 |  |  |  |  | $ | 22,967 |  |  | $ | 30 |  |  | $ | — |  |  | $ | 22,997 |
Intersegment revenues | 55 |  |  | 68 |  |  |  |  | 123 |  |  | 90 |  |  | (213) |  |  | — |
Total operating revenues | $ | 21,475 |  |  | $ | 1,615 |  |  |  |  | $ | 23,090 |  |  | $ | 120 |  |  | $ | (213) |  |  | $ | 22,997 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 7,266 |  |  | $ | — |  |  |  |  | $ | 7,266 |  |  | $ | — |  |  | $ | (59) |  |  | $ | 7,207 |
Cost of natural gas | — |  |  | 380 |  |  |  |  | 380 |  |  | — |  |  | — |  |  | 380 |
Operation, maintenance and other | 3,965 |  |  | 359 |  |  |  |  | 4,324 |  |  | (70) |  |  | (146) |  |  | 4,108 |
Depreciation and amortization | 3,823 |  |  | 294 |  |  |  |  | 4,117 |  |  | 216 |  |  | (21) |  |  | 4,312 |
Property and other taxes | 1,033 |  |  | 120 |  |  |  |  | 1,153 |  |  | 10 |  |  | (1) |  |  | 1,162 |
Impairment of assets and other charges | 38 |  |  | — |  |  |  |  | 38 |  |  | 1 |  |  | — |  |  | 39 |
Interest expense | 1,501 |  |  | 189 |  |  |  |  | 1,690 |  |  | 921 |  |  | (98) |  |  | 2,513 |
Income tax expense (benefit) | 631 |  |  | 57 |  |  |  |  | 688 |  |  | (207) |  |  | — |  |  | 481 |
Other Segment Items |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interests(a) | 66 |  |  | — |  |  |  |  | 66 |  |  | — |  |  | (1) |  |  | 65 |
Preferred dividends | — |  |  | — |  |  |  |  | — |  |  | 92 |  |  | — |  |  | 92 |
Preferred redemption costs | — |  |  | — |  |  |  |  | — |  |  | 16 |  |  | — |  |  | 16 |
Add: Equity in earnings of unconsolidated affiliates | 4 |  |  | 3 |  |  |  |  | 7 |  |  | 46 |  |  | — |  |  | 53 |
Add: Other(b) | 406 |  |  | 46 |  |  |  |  | 452 |  |  | 188 |  |  | (113) |  |  | 527 |
Segment income (loss)(d)(e) | $ | 3,562 |  |  | $ | 265 |  |  |  |  | $ | 3,827 |  |  | $ | (625) |  |  | $ | — |  |  | $ | 3,202 |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  | 9 |
Net income available to Duke Energy Corporation Common Stockholders |  |  |  |  |  |  |  |  |  |  |  |  | $ | 3,211 |
Add back: Net Income available to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  | 68 |
Add back: Preferred dividends |  |  |  |  |  |  |  |  |  |  |  |  | 92 |
Add back: Preferred redemption costs |  |  |  |  |  |  |  |  |  |  |  |  | 16 |
Net Income |  |  |  |  |  |  |  |  |  |  |  |  | $ | 3,387 |
Capital investments expenditures and acquisitions for the nine months ended September 30, 2024 | $ | 7,969 |  |  | $ | 1,027 |  |  |  |  | $ | 8,996 |  |  | $ | 203 |  |  | $ | — |  |  | $ | 9,199 |
Segment assets as of December 31, 2024(c) | 164,010 |  |  | 18,131 |  |  |  |  | 182,141 |  |  | 4,202 |  |  | — |  |  | 186,343 |
(a)Net income 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. (d) EU&I includes $42 million recorded within Impairment of assets and other charges, $2 million within Operations, maintenance and other, and an $11 million reduction recorded within Interest Expense on Duke Energy Carolinas' and Duke Energy Progress' Condensed Consolidated Statement of Operations, related to the Duke Energy Carolinas' 2024 South Carolina rate case order. Additionally, EU&I includes $17 million recorded within Operating Revenues and GU&I includes $1 million recorded within Operations, maintenance and other and $3 million recorded within Other income and expenses related to nonrecurring customer billing adjustments as a result of implementation of a new customer system. (e) Other includes $16 million recorded as Preferred Redemption Costs related to the redemption of Series B Preferred Stock. Refer to Note 15 for further information.
Duke Energy Carolinas |
Segment Reporting Information [Line Items] |
Business Segment Information | Duke Energy Carolinas has one reportable segment, EU&I. The remainder of Duke Energy Carolinas' operations is presented as Other.
|  | Three Months Ended September 30, 2025 |  | Nine Months Ended September 30, 2025
|  | Electric |  |  |  | Electric |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 2,632 |  | $ | — |  | $ | 2,632 |  |  | $ | 7,387 |  | $ | — |  | $ | 7,387 |
Less: |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 706 |  | $ | — |  | $ | 706 |  |  | $ | 2,080 |  | $ | — |  | $ | 2,080 |
Operation, maintenance and other |  | 477 |  | 10 |  | 487 |  |  | 1,439 |  | 32 |  | 1,471 |
Depreciation and amortization |  | 488 |  | — |  | 488 |  |  | 1,402 |  | — |  | 1,402 |
Property and other taxes |  | 96 |  | — |  | 96 |  |  | 283 |  | — |  | 283 |
Impairment of assets and other charges |  | 1 |  | — |  | 1 |  |  | — |  | — |  | — |
Interest expense |  | 184 |  | — |  | 184 |  |  | 584 |  | — |  | 584 |
Income tax expense (benefit) |  | 54 |  | (3) |  | 51 |  |  | 146 |  | (8) |  | 138 |
Add: Other segment items(a) |  | 66 |  | (1) |  | 65 |  |  | 195 |  | (2) |  | 193 |
Segment income (loss) / Net income |  | $ | 692 |  | $ | (8) |  | $ | 684 |  |  | $ | 1,648 |  | $ | (26) |  | $ | 1,622 |
Capital expenditures for the nine months ended September 30, 2025 |  |  |  |  |  | $ | 3,159 |  | $ | — |  | $ | 3,159 |
Segment assets as of September 30, 2025 |  |  |  |  |  | 57,700 |  | 221 |  | 57,921 |
|  | Three Months Ended September 30, 2024 |  | Nine Months Ended September 30, 2024
|  | Electric |  |  |  | Electric |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 2,707 |  | $ | — |  | $ | 2,707 |  |  | $ | 7,411 |  | $ | — |  | $ | 7,411 |
Less: |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 922 |  | $ | — |  | $ | 922 |  |  | $ | 2,531 |  | $ | — |  | $ | 2,531 |
Operation, maintenance and other |  | 461 |  | 2 |  | 463 |  |  | 1,335 |  | 23 |  | 1,358 |
Depreciation and amortization |  | 472 |  | — |  | 472 |  |  | 1,306 |  | — |  | 1,306 |
Property and other taxes |  | 88 |  | — |  | 88 |  |  | 271 |  | — |  | 271 |
Impairment of assets and other charges |  | (2) |  | — |  | (2) |  |  | 32 |  | — |  | 32 |
Interest expense |  | 189 |  | — |  | 189 |  |  | 537 |  | — |  | 537 |
Income tax expense (benefit) |  | 50 |  | (1) |  | 49 |  |  | 159 |  | (6) |  | 153 |
Add: Other segment items(a) |  | 59 |  | (1) |  | 58 |  |  | 184 |  | (2) |  | 182 |
Segment income (loss) / Net income |  | $ | 586 |  | $ | (2) |  | $ | 584 |  |  | $ | 1,424 |  | $ | (19) |  | $ | 1,405 |
Capital expenditures for the nine months ended September 30, 2024 |  |  |  |  |  | $ | 2,923 |  | $ | — |  | $ | 2,923 |
Segment assets as of December 31, 2024 |  |  |  |  |  | 54,782 |  | 223 |  | 55,005 |
(a) Other segment items include Gains on sales of other assets and other, net, and Other income and expenses, net.
Progress Energy |
Segment Reporting Information [Line Items] |
Business Segment Information | Progress Energy has one reportable segment, EU&I. The remainder of Progress Energy's operations is presented as Other.
|  | Three Months Ended September 30, 2025 |  | Nine Months Ended September 30, 2025
|  | Electric |  |  |  | Electric |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 4,070 |  | $ | 4 |  | $ | 4,074 |  |  | $ | 11,098 |  | $ | 12 |  | $ | 11,110 |
Less: |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 1,175 |  | $ | — |  | $ | 1,175 |  |  | $ | 3,306 |  | $ | — |  | $ | 3,306 |
Operation, maintenance and other |  | 935 |  | 9 |  | 944 |  |  | 2,436 |  | 39 |  | 2,475 |
Depreciation and amortization |  | 670 |  | — |  | 670 |  |  | 1,910 |  | — |  | 1,910 |
Property and other taxes |  | 201 |  | — |  | 201 |  |  | 548 |  | — |  | 548 |
Impairment of assets and other charges |  | (2) |  | — |  | (2) |  |  | (2) |  | — |  | (2) |
Interest expense |  | 243 |  | 29 |  | 272 |  |  | 744 |  | 86 |  | 830 |
Income tax expense (benefit) |  | 155 |  | (12) |  | 143 |  |  | 394 |  | (33) |  | 361 |
Add: Other segment items(a) |  | 81 |  | 5 |  | 86 |  |  | 218 |  | 10 |  | 228 |
Segment income (loss) / Net income |  | $ | 774 |  | $ | (17) |  | $ | 757 |  |  | $ | 1,980 |  | $ | (70) |  | $ | 1,910 |
Capital expenditures for the nine months ended September 30, 2025 |  |  |  |  |  | $ | 4,320 |  | $ | — |  | $ | 4,320 |
Segment assets as of September 30, 2025 |  |  |  |  |  | 70,292 |  | 4,272 |  | 74,564 |
|  | Three Months Ended September 30, 2024 |  | Nine Months Ended September 30, 2024
|  | Electric |  |  |  | Electric |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 3,854 |  | $ | 6 |  | $ | 3,860 |  |  | $ | 10,430 |  | $ | 15 |  | $ | 10,445 |
Less: |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 1,384 |  | $ | — |  | $ | 1,384 |  |  | $ | 3,729 |  | $ | — |  | $ | 3,729 |
Operation, maintenance and other |  | 646 |  | 7 |  | 653 |  |  | 1,833 |  | 36 |  | 1,869 |
Depreciation and amortization |  | 640 |  | — |  | 640 |  |  | 1,795 |  | — |  | 1,795 |
Property and other taxes |  | 170 |  | — |  | 170 |  |  | 494 |  | — |  | 494 |
Impairment of assets and other charges |  | (3) |  | — |  | (3) |  |  | 6 |  | — |  | 6 |
Interest expense |  | 241 |  | 30 |  | 271 |  |  | 709 |  | 87 |  | 796 |
Income tax expense (benefit) |  | 142 |  | (12) |  | 130 |  |  | 351 |  | (31) |  | 320 |
Add: Other segment items(a) |  | 53 |  | 10 |  | 63 |  |  | 170 |  | 28 |  | 198 |
Segment income (loss) / Net income |  | $ | 687 |  | $ | (9) |  | $ | 678 |  |  | $ | 1,683 |  | $ | (49) |  | $ | 1,634 |
Capital expenditures for the nine months ended September 30, 2024 |  |  |  |  |  | $ | 3,891 |  | $ | — |  | $ | 3,891 |
Segment assets as of December 31, 2024 |  |  |  |  |  | 67,951 |  | 3,685 |  | 71,636 |
(a) Other segment items include 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 Information | Duke Energy Progress has one reportable segment, EU&I. The remainder of Duke Energy Progress' operations is presented as Other.
|  | Three Months Ended September 30, 2025 |  | Nine Months Ended September 30, 2025
|  | Electric |  |  |  | Electric |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 1,913 |  | $ | — |  | $ | 1,913 |  |  | $ | 5,612 |  | $ | — |  | $ | 5,612 |
Less: |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 629 |  | $ | — |  | $ | 629 |  |  | $ | 1,928 |  | $ | — |  | $ | 1,928 |
Operation, maintenance and other |  | 358 |  | 4 |  | 362 |  |  | 1,082 |  | 18 |  | 1,100 |
Depreciation and amortization |  | 373 |  | — |  | 373 |  |  | 1,049 |  | — |  | 1,049 |
Property and other taxes |  | 54 |  | — |  | 54 |  |  | 159 |  | — |  | 159 |
Impairment of assets and other charges |  | (2) |  | — |  | (2) |  |  | (2) |  | — |  | (2) |
Interest expense |  | 125 |  | — |  | 125 |  |  | 392 |  | — |  | 392 |
Income tax expense (benefit) |  | 58 |  | (2) |  | 56 |  |  | 156 |  | (5) |  | 151 |
Add: Other segment items(a) |  | 58 |  | (2) |  | 56 |  |  | 147 |  | (4) |  | 143 |
Segment income (loss) / Net income |  | $ | 376 |  | $ | (4) |  | $ | 372 |  |  | $ | 995 |  | $ | (17) |  | $ | 978 |
Capital expenditures for the nine months ended September 30, 2025 |  |  |  |  |  | $ | 2,372 |  | $ | — |  | $ | 2,372 |
Segment assets as of September 30, 2025 |  |  |  |  |  | 41,163 |  | 744 |  | 41,907 |
|  | Three Months Ended September 30, 2024 |  | Nine Months Ended September 30, 2024
|  | Electric |  |  |  | Electric |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 1,914 |  | $ | — |  | $ | 1,914 |  |  | $ | 5,338 |  | $ | — |  | $ | 5,338 |
Less: |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 679 |  | $ | — |  | $ | 679 |  |  | $ | 1,896 |  | $ | — |  | $ | 1,896 |
Operation, maintenance and other |  | 374 |  | 2 |  | 376 |  |  | 1,063 |  | 14 |  | 1,077 |
Depreciation and amortization |  | 354 |  | — |  | 354 |  |  | 999 |  | — |  | 999 |
Property and other taxes |  | 43 |  | — |  | 43 |  |  | 144 |  | — |  | 144 |
Impairment of assets and other charges |  | (3) |  | — |  | (3) |  |  | 6 |  | — |  | 6 |
Interest expense |  | 127 |  | — |  | 127 |  |  | 370 |  | — |  | 370 |
Income tax expense (benefit) |  | 48 |  | — |  | 48 |  |  | 137 |  | (2) |  | 135 |
Add: Other segment items(a) |  | 32 |  | 3 |  | 35 |  |  | 104 |  | 5 |  | 109 |
Segment income (loss) / Net income |  | $ | 324 |  | $ | 1 |  | $ | 325 |  |  | $ | 827 |  | $ | (7) |  | $ | 820 |
Capital expenditures for the nine months ended September 30, 2024 |  |  |  |  |  | $ | 2,036 |  | $ | — |  | $ | 2,036 |
Segment assets as of December 31, 2024 |  |  |  |  |  | 39,402 |  | 91 |  | 39,493 |
(a) Other segment items include 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 Information | Duke Energy Florida has one reportable segment, EU&I. The remainder of Duke Energy Florida's operations is presented as Other.
|  | Three Months Ended September 30, 2025 |  | Nine Months Ended September 30, 2025
|  | Electric |  |  |  | Electric |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 2,157 |  | $ | — |  | $ | 2,157 |  |  | $ | 5,486 |  | $ | — |  | $ | 5,486 |
Less: |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 546 |  | $ | — |  | $ | 546 |  |  | $ | 1,378 |  | $ | — |  | $ | 1,378 |
Operation, maintenance and other |  | 577 |  | 2 |  | 579 |  |  | 1,354 |  | 11 |  | 1,365 |
Depreciation and amortization |  | 297 |  | — |  | 297 |  |  | 861 |  | — |  | 861 |
Property and other taxes |  | 147 |  | — |  | 147 |  |  | 389 |  | — |  | 389 |
Interest expense |  | 118 |  | — |  | 118 |  |  | 352 |  | — |  | 352 |
Income tax expense (benefit) |  | 97 |  | (1) |  | 96 |  |  | 238 |  | (3) |  | 235 |
Add: Other segment items(a) |  | 23 |  | — |  | 23 |  |  | 71 |  | (2) |  | 69 |
Segment income (loss) / Net income |  | $ | 398 |  | $ | (1) |  | $ | 397 |  |  | $ | 985 |  | $ | (10) |  | $ | 975 |
Capital expenditures for the nine months ended September 30, 2025 |  |  |  |  |  | $ | 1,948 |  | $ | — |  | $ | 1,948 |
Segment assets as of September 30, 2025 |  |  |  |  |  | 29,129 |  | 85 |  | 29,214 |
|  | Three Months Ended September 30, 2024 |  | Nine Months Ended September 30, 2024
|  | Electric |  |  |  | Electric |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 1,940 |  | $ | — |  | $ | 1,940 |  |  | $ | 5,092 |  | $ | — |  | $ | 5,092 |
Less: |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 705 |  | $ | — |  | $ | 705 |  |  | $ | 1,833 |  | $ | — |  | $ | 1,833 |
Operation, maintenance and other |  | 272 |  | — |  | 272 |  |  | 770 |  | 9 |  | 779 |
Depreciation and amortization |  | 286 |  | — |  | 286 |  |  | 796 |  | — |  | 796 |
Property and other taxes |  | 127 |  | — |  | 127 |  |  | 350 |  | — |  | 350 |
Interest expense |  | 114 |  | — |  | 114 |  |  | 339 |  | — |  | 339 |
Income tax expense (benefit) |  | 94 |  | — |  | 94 |  |  | 214 |  | (2) |  | 212 |
Add: Other segment items(a) |  | 21 |  | 1 |  | 22 |  |  | 66 |  | 3 |  | 69 |
Segment income (loss) / Net income |  | $ | 363 |  | $ | 1 |  | $ | 364 |  |  | $ | 856 |  | $ | (4) |  | $ | 852 |
Capital expenditures for the nine months ended September 30, 2024 |  |  |  |  |  | $ | 1,855 |  | $ | — |  | $ | 1,855 |
Segment assets as of December 31, 2024 |  |  |  |  |  | 28,549 |  | 20 |  | 28,569 |
(a) Other segment items include 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 Information | Duke Energy Ohio has two reportable segments, EU&I and GU&I. The remainder of Duke Energy Ohio's operations is presented as Other.
| Three Months Ended September 30, 2025
| Electric |  | Gas |  | Total |  |  |  |
| Utilities and |  | Utilities and |  | Reportable |  | Eliminations/ |  |
(in millions) | Infrastructure |  | Infrastructure |  | Segments |  | Other |  | Total
Total operating revenues | $ | 561 |  |  | $ | 118 |  |  | $ | 679 |  |  | $ | — |  |  | $ | 679 |
Less: |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 175 |  |  | $ | — |  |  | $ | 175 |  |  | $ | — |  |  | $ | 175 |
Cost of natural gas | — |  |  | 12 |  |  | 12 |  |  | — |  |  | 12 |
Operation, maintenance and other | 98 |  |  | 28 |  |  | 126 |  |  | 1 |  |  | 127 |
Depreciation and amortization | 83 |  |  | 36 |  |  | 119 |  |  | 1 |  |  | 120 |
Property and other taxes | 87 |  |  | 21 |  |  | 108 |  |  | 1 |  |  | 109 |
Interest expense | 34 |  |  | 18 |  |  | 52 |  |  | — |  |  | 52 |
Income tax expense (benefit) | 13 |  |  | 1 |  |  | 14 |  |  | (1) |  |  | 13 |
Add: Other segment items(a) | 4 |  |  | 2 |  |  | 6 |  |  | 1 |  |  | 7 |
Segment income (loss) / Net income | $ | 75 |  |  | $ | 4 |  |  | $ | 79 |  |  | $ | (1) |  |  | $ | 78 |
| Three Months Ended September 30, 2024
| Electric |  | Gas |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Reportable |  | Eliminations/ |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Segments |  | Other |  |  |  | Total
Total operating revenues | $ | 497 |  |  | $ | 108 |  |  | $ | 605 |  |  | $ | — |  |  |  |  | $ | 605 |
Less: |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 146 |  |  | $ | — |  |  | $ | 146 |  |  | — |  |  |  |  | $ | 146 |
Cost of natural gas | — |  |  | 18 |  |  | 18 |  |  | — |  |  |  |  | 18 |
Operation, maintenance and other | 106 |  |  | 25 |  |  | 131 |  |  | — |  |  |  |  | 131 |
Depreciation and amortization | 70 |  |  | 32 |  |  | 102 |  |  | — |  |  |  |  | 102 |
Property and other taxes | 79 |  |  | 20 |  |  | 99 |  |  | — |  |  |  |  | 99 |
Interest expense | 32 |  |  | 18 |  |  | 50 |  |  | 2 |  |  |  |  | 52 |
Income tax expense (benefit) | 10 |  |  | (2) |  |  | 8 |  |  | (1) |  |  |  |  | 7 |
Add: Other segment items(a) | 3 |  |  | (1) |  |  | 2 |  |  | — |  |  |  |  | 2 |
Segment income (loss) / Net income | $ | 57 |  |  | $ | (4) |  |  | $ | 53 |  |  | $ | (1) |  |  |  |  | $ | 52 |
(a) Other segment items for EU&I and GU&I include Gains on sales of other assets and other, net, and Other income and expenses, net.
| Nine Months Ended September 30, 2025
| Electric |  | Gas |  | Total |  |  |  |
| Utilities and |  | Utilities and |  | Reportable |  | Eliminations/ |  |
(in millions) | Infrastructure |  | Infrastructure |  | Segments |  | Other |  | Total
Total operating revenues | $ | 1,546 |  |  | $ | 553 |  |  | $ | 2,099 |  |  | $ | — |  |  | $ | 2,099 |
Less: |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 485 |  |  | $ | — |  |  | $ | 485 |  |  | $ | — |  |  | $ | 485 |
Cost of natural gas | — |  |  | 148 |  |  | 148 |  |  | — |  |  | 148 |
Operation, maintenance and other | 277 |  |  | 84 |  |  | 361 |  |  | 5 |  |  | 366 |
Depreciation and amortization | 242 |  |  | 111 |  |  | 353 |  |  | — |  |  | 353 |
Property and other taxes | 253 |  |  | 72 |  |  | 325 |  |  | 1 |  |  | 326 |
Interest expense | 97 |  |  | 52 |  |  | 149 |  |  | 1 |  |  | 150 |
Income tax expense (benefit) | 31 |  |  | 18 |  |  | 49 |  |  | (2) |  |  | 47 |
Add: Other segment items(a) | 12 |  |  | 6 |  |  | 18 |  |  | — |  |  | 18 |
Segment income (loss) / Net income | $ | 173 |  |  | $ | 74 |  |  | $ | 247 |  |  | $ | (5) |  |  | $ | 242 |
Capital expenditures for the nine months ended September 30, 2025 | $ | 457 |  |  | $ | 252 |  |  | $ | 709 |  |  | $ | — |  |  | $ | 709 |
Segment assets as of September 30, 2025 | 8,433 |  |  | 4,647 |  |  | 13,080 |  |  | 192 |  |  | 13,272 |
| Nine Months Ended September 30, 2024
| Electric |  | Gas |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Reportable |  | Eliminations/ |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Segments |  | Other |  |  |  | Total
Total operating revenues | $ | 1,431 |  |  | $ | 460 |  |  | $ | 1,891 |  |  | $ | — |  |  |  |  | $ | 1,891 |
Less: |  |  |  |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power | $ | 416 |  |  | $ | — |  |  | $ | 416 |  |  | — |  |  |  |  | $ | 416 |
Cost of natural gas | — |  |  | 100 |  |  | 100 |  |  | — |  |  |  |  | 100 |
Operation, maintenance and other | 287 |  |  | 87 |  |  | 374 |  |  | 4 |  |  |  |  | 378 |
Depreciation and amortization | 201 |  |  | 96 |  |  | 297 |  |  | — |  |  |  |  | 297 |
Property and other taxes | 230 |  |  | 73 |  |  | 303 |  |  | — |  |  |  |  | 303 |
Interest expense | 93 |  |  | 50 |  |  | 143 |  |  | 1 |  |  |  |  | 144 |
Income tax expense (benefit) | 33 |  |  | 11 |  |  | 44 |  |  | (2) |  |  |  |  | 42 |
Add: Other segment items(a) | 10 |  |  | 3 |  |  | 13 |  |  | (1) |  |  |  |  | 12 |
Segment income (loss) / Net income | $ | 181 |  |  | $ | 46 |  |  | $ | 227 |  |  | $ | (4) |  |  |  |  | $ | 223 |
Capital expenditures for the nine months ended September 30, 2024 | $ | 421 |  |  | $ | 219 |  |  | $ | 640 |  |  | $ | — |  |  |  |  | $ | 640 |
Segment assets as of December 31, 2024 | 8,211 |  |  | 4,506 |  |  | 12,717 |  |  | 51 |  |  |  |  | 12,768 |
(a) Other segment items for EU&I and GU&I include 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 Information | Duke Energy Indiana has one reportable segment, EU&I. The remainder of Duke Energy Indiana's operations is presented as Other.
|  | Three Months Ended September 30, 2025 |  | Nine Months Ended September 30, 2025
|  | Electric |  |  |  | Electric |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 992 |  | $ | — |  | $ | 992 |  |  | $ | 2,671 |  | $ | — |  | $ | 2,671 |
Less: |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 324 |  | $ | — |  | $ | 324 |  |  | $ | 803 |  | $ | — |  | $ | 803 |
Operation, maintenance and other |  | 212 |  | 2 |  | 214 |  |  | 594 |  | 7 |  | 601 |
Depreciation and amortization |  | 203 |  | — |  | 203 |  |  | 617 |  | — |  | 617 |
Property and other taxes |  | 9 |  | — |  | 9 |  |  | 44 |  | — |  | 44 |
Interest expense |  | 66 |  | — |  | 66 |  |  | 182 |  | — |  | 182 |
Income tax expense (benefit) |  | 24 |  | — |  | 24 |  |  | 62 |  | (2) |  | 60 |
Add: Other segment items(a) |  | 15 |  | — |  | 15 |  |  | 47 |  | (1) |  | 46 |
Segment income (loss) / Net income |  | $ | 169 |  | $ | (2) |  | $ | 167 |  |  | $ | 416 |  | $ | (6) |  | $ | 410 |
Capital expenditures for the nine months ended September 30, 2025 |  |  |  |  |  | $ | 841 |  | $ | — |  | $ | 841 |
Segment assets as of September 30, 2025 |  |  |  |  |  | 15,961 |  | 204 |  | 16,165 |
|  | Three Months Ended September 30, 2024 |  | Nine Months Ended September 30, 2024
|  | Electric |  |  |  | Electric |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 836 |  | $ | — |  | $ | 836 |  |  | $ | 2,342 |  | $ | — |  | $ | 2,342 |
Less: |  |  |  |  |  |  |  |
Fuel used in electric generation and purchased power |  | $ | 267 |  | $ | — |  | $ | 267 |  |  | $ | 761 |  | $ | — |  | $ | 761 |
Operation, maintenance and other |  | 169 |  | — |  | 169 |  |  | 508 |  | 2 |  | 510 |
Depreciation and amortization |  | 166 |  | — |  | 166 |  |  | 507 |  | — |  | 507 |
Property and other taxes |  | 7 |  | — |  | 7 |  |  | 37 |  | — |  | 37 |
Interest expense |  | 58 |  | — |  | 58 |  |  | 173 |  | — |  | 173 |
Income tax expense (benefit) |  | 29 |  | — |  | 29 |  |  | 65 |  | — |  | 65 |
Add: Other segment items(a) |  | 15 |  | 1 |  | 16 |  |  | 44 |  | — |  | 44 |
Segment income (loss) / Net income |  | $ | 155 |  | $ | 1 |  | $ | 156 |  |  | $ | 335 |  | $ | (2) |  | $ | 333 |
Capital expenditures for the nine months ended September 30, 2024 |  |  |  |  |  | $ | 711 |  | $ | — |  | $ | 711 |
Segment assets as of December 31, 2024 |  |  |  |  |  | 15,726 |  | 1 |  | 15,727 |
(a) Other segment items include Gains on sales of other assets and other, net, and Other income and expenses, net.
Piedmont |
Segment Reporting Information [Line Items] |
Business Segment Information | Piedmont has one reportable segment, GU&I. The remainder of Piedmont's operations is presented as Other.
|  | Three Months Ended September 30, 2025 |  | Nine Months Ended September 30, 2025
|  | Gas |  |  |  | Gas |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 271 |  | $ | — |  | $ | 271 |  |  | $ | 1,463 |  | $ | — |  | $ | 1,463 |
Less: |  |  |  |  |  |  |  |
Cost of natural gas |  | $ | 98 |  | $ | — |  | $ | 98 |  |  | $ | 494 |  | $ | — |  | $ | 494 |
Operation, maintenance and other |  | 94 |  | 8 |  | 102 |  |  | 289 |  | 12 |  | 301 |
Depreciation and amortization |  | 69 |  | — |  | 69 |  |  | 210 |  | — |  | 210 |
Property and other taxes |  | 19 |  | — |  | 19 |  |  | 56 |  | — |  | 56 |
Interest expense |  | 48 |  | — |  | 48 |  |  | 142 |  | 1 |  | 143 |
Income tax (benefit) expense |  | (11) |  | (1) |  | (12) |  |  | 58 |  | (2) |  | 56 |
Other Segment Items |  |  |  |  |  |  |  |
Add: Equity in earnings of unconsolidated affiliates |  | — |  | 3 |  | 3 |  |  | — |  | 6 |  | 6 |
Add: Other(a) |  | 12 |  | — |  | 12 |  |  | 34 |  | — |  | 34 |
Segment (loss) income / Net (loss) income |  | $ | (34) |  | $ | (4) |  | $ | (38) |  |  | $ | 248 |  | $ | (5) |  | $ | 243 |
Capital expenditures for the nine months ended September 30, 2025 |  |  |  |  |  | $ | 595 |  | $ | — |  | $ | 595 |
Segment assets as of September 30, 2025(b) |  |  |  |  |  | 11,947 |  | 89 |  | 12,036 |
|  | Three Months Ended September 30, 2024 |  | Nine Months Ended September 30, 2024
|  | Gas |  |  |  | Gas |  |
|  | Utilities and | Eliminations/ |  |  | Utilities and | Eliminations/ |
(in millions) |  | Infrastructure | Other | Total |  | Infrastructure | Other | Total
Total operating revenues |  | $ | 219 |  | $ | — |  | $ | 219 |  |  | $ | 1,139 |  | $ | — |  | $ | 1,139 |
Less: |  |  |  |  |  |  |  |
Cost of natural gas |  | $ | 52 |  | $ | — |  | $ | 52 |  |  | $ | 280 |  | $ | — |  | $ | 280 |
Operation, maintenance and other |  | 86 |  | 1 |  | 87 |  |  | 264 |  | 3 |  | 267 |
Depreciation and amortization |  | 65 |  | — |  | 65 |  |  | 191 |  | — |  | 191 |
Property and other taxes |  | 16 |  | — |  | 16 |  |  | 47 |  | — |  | 47 |
Interest expense |  | 47 |  | — |  | 47 |  |  | 135 |  | — |  | 135 |
Income tax (benefit) expense |  | (10) |  | — |  | (10) |  |  | 48 |  | 1 |  | 49 |
Other Segment Items |  |  |  |  |  |  |  |
Add: Equity in earnings of unconsolidated affiliates |  | — |  | 2 |  | 2 |  |  | — |  | 6 |  | 6 |
Add: Other(a) |  | 12 |  | — |  | 12 |  |  | 42 |  | — |  | 42 |
Segment (loss) income / Net (loss) income |  | $ | (25) |  | $ | 1 |  | $ | (24) |  |  | $ | 216 |  | $ | 2 |  | $ | 218 |
Capital expenditures for the nine months ended September 30, 2024 |  |  |  |  |  | $ | 800 |  | $ | — |  | $ | 800 |
Segment assets as of December 31, 2024(b) |  |  |  |  |  | 11,707 |  | 92 |  | 11,799 |
(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 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: |