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Business Segments (Business Segment Data) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | $ 8,542 | $ 8,154 | $ 24,299 | $ 22,997 |
Less: |  |  |  |  |
Operation, maintenance and other | 1,762 | 1,409 | 4,916 | 4,108 |
Depreciation and amortization | 1,626 | 1,516 | 4,721 | 4,312 |
Property and other taxes | 438 | 383 | 1,281 | 1,162 |
Impairment of assets and other charges | 0 | (5) | 3 | 39 |
Interest expense | 902 | 872 | 2,688 | 2,513 |
Income tax expense (benefit) | 176 | 163 | 488 | 481 |
Noncontrolling interests | 33 | 31 | 81 | 65 |
Preferred dividends | 14 | 39 | 41 | 92 |
Preferred redemption costs | 0 | 16 | 0 | 16 |
Equity in earnings of unconsolidated affiliates | 16 | 15 | 38 | 53 |
Add: Other | 199 | 173 | 534 | 527 |
Segment income (loss) | 1,407 | 1,204 | 3,744 | 3,202 |
Loss From Discontinued Operations, net of tax | 0 | 22 | (1) | 9 |
Net Income Available to Duke Energy Corporation Common Stockholders | 1,407 | 1,226 | 3,743 | 3,211 |
Income (loss) attributable to noncontrolling interest | 33 | 34 | 81 | 68 |
Net income (loss) | 1,454 | 1,315 | 3,865 | 3,387 |
Capital investments expenditures and acquisitions |  |  | 9,881 | 9,199 |
Total Assets | 192,293 |  | 192,293 |  | $ 186,343
Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 2,289 | 2,644 | 6,266 | 7,207 |
Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 110 | 70 | 642 | 380 |
Duke Energy Carolinas |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 2,632 | 2,707 | 7,387 | 7,411 |
Less: |  |  |  |  |
Cost of sales | 706 | 922 | 2,080 | 2,531 |
Operation, maintenance and other | 487 | 463 | 1,471 | 1,358 |
Depreciation and amortization | 488 | 472 | 1,402 | 1,306 |
Property and other taxes | 96 | 88 | 283 | 271 |
Impairment of assets and other charges | 1 | (2) | 0 | 32 |
Interest expense | 184 | 189 | 584 | 537 |
Income tax expense (benefit) | 51 | 49 | 138 | 153 |
Add: Other | 65 | 58 | 193 | 182 |
Segment income (loss) | 684 | 584 | 1,622 | 1,405 |
Net income (loss) |  |  | 1,622 | 1,405 |
Capital investments expenditures and acquisitions |  |  | 3,159 | 2,923 |
Total Assets | 57,921 |  | 57,921 |  | 55,005
Duke Energy Carolinas | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 706 | 922 | 2,080 | 2,531 |
Progress Energy |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 4,074 | 3,860 | 11,110 | 10,445 |
Less: |  |  |  |  |
Cost of sales | 1,175 | 1,384 | 3,306 | 3,729 |
Operation, maintenance and other | 944 | 653 | 2,475 | 1,869 |
Depreciation and amortization | 670 | 640 | 1,910 | 1,795 |
Property and other taxes | 201 | 170 | 548 | 494 |
Impairment of assets and other charges | (2) | (3) | (2) | 6 |
Interest expense | 272 | 271 | 830 | 796 |
Income tax expense (benefit) | 143 | 130 | 361 | 320 |
Add: Other | 86 | 63 | 228 | 198 |
Segment income (loss) | 757 | 678 | 1,910 | 1,634 |
Net income (loss) | 757 | 678 | 1,910 | 1,634 |
Capital investments expenditures and acquisitions |  |  | 4,320 | 3,891 |
Total Assets | 74,564 |  | 74,564 |  | 71,636
Progress Energy | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 1,175 | 1,384 | 3,306 | 3,729 |
Duke Energy Progress |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 1,913 | 1,914 | 5,612 | 5,338 |
Less: |  |  |  |  |
Cost of sales | 629 | 679 | 1,928 | 1,896 |
Operation, maintenance and other | 362 | 376 | 1,100 | 1,077 |
Depreciation and amortization | 373 | 354 | 1,049 | 999 |
Property and other taxes | 54 | 43 | 159 | 144 |
Impairment of assets and other charges | (2) | (3) | (2) | 6 |
Interest expense | 125 | 127 | 392 | 370 |
Income tax expense (benefit) | 56 | 48 | 151 | 135 |
Add: Other | 56 | 35 | 143 | 109 |
Segment income (loss) | 372 | 325 | 978 | 820 |
Net income (loss) |  |  | 978 | 820 |
Capital investments expenditures and acquisitions |  |  | 2,372 | 2,036 |
Total Assets | 41,907 |  | 41,907 |  | 39,493
Duke Energy Progress | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 629 | 679 | 1,928 | 1,896 |
Duke Energy Florida |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 2,157 | 1,940 | 5,486 | 5,092 |
Less: |  |  |  |  |
Cost of sales | 546 | 705 | 1,378 | 1,833 |
Operation, maintenance and other | 579 | 272 | 1,365 | 779 |
Depreciation and amortization | 297 | 286 | 861 | 796 |
Property and other taxes | 147 | 127 | 389 | 350 |
Interest expense | 118 | 114 | 352 | 339 |
Income tax expense (benefit) | 96 | 94 | 235 | 212 |
Add: Other | 23 | 22 | 69 | 69 |
Segment income (loss) | 397 | 364 | 975 | 852 |
Net income (loss) |  |  | 975 | 852 |
Capital investments expenditures and acquisitions |  |  | 1,948 | 1,855 |
Total Assets | 29,214 |  | 29,214 |  | 28,569
Duke Energy Florida | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 546 | 705 | 1,378 | 1,833 |
Duke Energy Ohio |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 679 | 605 | 2,099 | 1,891 |
Less: |  |  |  |  |
Operation, maintenance and other | 127 | 131 | 366 | 378 |
Depreciation and amortization | 120 | 102 | 353 | 297 |
Property and other taxes | 109 | 99 | 326 | 303 |
Interest expense | 52 | 52 | 150 | 144 |
Income tax expense (benefit) | 13 | 7 | 47 | 42 |
Add: Other | 7 | 2 | 18 | 12 |
Segment income (loss) | 78 | 52 | 242 | 223 |
Net income (loss) |  |  | 242 | 223 |
Capital investments expenditures and acquisitions |  |  | 709 | 640 |
Total Assets | 13,272 |  | 13,272 |  | 12,768
Duke Energy Ohio | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 175 | 146 | 485 | 416 |
Duke Energy Ohio | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 12 | 18 | 148 | 100 |
Duke Energy Indiana |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 992 | 836 | 2,671 | 2,342 |
Less: |  |  |  |  |
Cost of sales | 324 | 267 | 803 | 761 |
Operation, maintenance and other | 214 | 169 | 601 | 510 |
Depreciation and amortization | 203 | 166 | 617 | 507 |
Property and other taxes | 9 | 7 | 44 | 37 |
Interest expense | 66 | 58 | 182 | 173 |
Income tax expense (benefit) | 24 | 29 | 60 | 65 |
Add: Other | 15 | 16 | 46 | 44 |
Segment income (loss) | 167 | 156 | 410 | 333 |
Net income (loss) |  |  | 410 | 333 |
Capital investments expenditures and acquisitions |  |  | 841 | 711 |
Total Assets | 16,165 |  | 16,165 |  | 15,727
Duke Energy Indiana | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 324 | 267 | 803 | 761 |
Piedmont |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 271 | 219 | 1,463 | 1,139 |
Less: |  |  |  |  |
Cost of sales | 98 | 52 | 494 | 280 |
Operation, maintenance and other | 102 | 87 | 301 | 267 |
Depreciation and amortization | 69 | 65 | 210 | 191 |
Property and other taxes | 19 | 16 | 56 | 47 |
Interest expense | 48 | 47 | 143 | 135 |
Income tax expense (benefit) | (12) | (10) | 56 | 49 |
Equity in earnings of unconsolidated affiliates | 3 | 2 | 6 | 6 |
Add: Other | 12 | 12 | 34 | 42 |
Segment income (loss) | (38) | (24) | 243 | 218 |
Net income (loss) | (38) | (24) | 243 | 218 |
Capital investments expenditures and acquisitions |  |  | 595 | 800 |
Total Assets | 12,036 |  | 12,036 |  | 11,799
Piedmont | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 98 | 52 | 494 | 280 |
Other |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 6 | 12 | 21 | 30 |
Less: |  |  |  |  |
Operation, maintenance and other | (38) | (44) | (59) | (70) |
Depreciation and amortization | 79 | 72 | 233 | 216 |
Property and other taxes | 2 | 3 | 8 | 10 |
Impairment of assets and other charges | 0 | 0 | 5 | 1 |
Interest expense | 332 | 321 | 968 | 921 |
Income tax expense (benefit) | (79) | (66) | (243) | (207) |
Noncontrolling interests | 0 | 0 | 0 | 0 |
Preferred dividends | 14 | 39 | 41 | 92 |
Preferred redemption costs |  | 16 |  | 16 |
Equity in earnings of unconsolidated affiliates | 12 | 10 | 27 | 46 |
Add: Other | 33 | 67 | 91 | 188 |
Segment income (loss) | (225) | (222) | (713) | (625) |
Capital investments expenditures and acquisitions |  |  | 245 | 203 |
Total Assets | 4,178 |  | 4,178 |  | 4,202
Other | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Other | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Eliminations, Corporate and Reconciling Items |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 40 | 42 | 122 | 120 |
Eliminations, Corporate and Reconciling Items | Duke Energy Carolinas |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 0 | 0 | 0 | 0 |
Less: |  |  |  |  |
Operation, maintenance and other | 10 | 2 | 32 | 23 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Property and other taxes | 0 | 0 | 0 | 0 |
Impairment of assets and other charges | 0 | 0 | 0 | 0 |
Interest expense | 0 | 0 | 0 | 0 |
Income tax expense (benefit) | (3) | (1) | (8) | (6) |
Add: Other | (1) | (1) | (2) | (2) |
Segment income (loss) | (8) | (2) | (26) | (19) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 221 |  | 221 |  | 223
Eliminations, Corporate and Reconciling Items | Duke Energy Carolinas | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Eliminations, Corporate and Reconciling Items | Progress Energy |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 4 | 6 | 12 | 15 |
Less: |  |  |  |  |
Operation, maintenance and other | 9 | 7 | 39 | 36 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Property and other taxes | 0 | 0 | 0 | 0 |
Impairment of assets and other charges |  | 0 |  | 0 |
Interest expense | 29 | 30 | 86 | 87 |
Income tax expense (benefit) | (12) | (12) | (33) | (31) |
Add: Other | 5 | 10 | 10 | 28 |
Segment income (loss) | (17) | (9) | (70) | (49) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 4,272 |  | 4,272 |  | 3,685
Eliminations, Corporate and Reconciling Items | Progress Energy | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Eliminations, Corporate and Reconciling Items | Duke Energy Progress |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 0 | 0 | 0 | 0 |
Less: |  |  |  |  |
Operation, maintenance and other | 4 | 2 | 18 | 14 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Property and other taxes | 0 | 0 | 0 | 0 |
Impairment of assets and other charges |  | 0 |  | 0 |
Interest expense | 0 | 0 | 0 | 0 |
Income tax expense (benefit) | (2) | 0 | (5) | (2) |
Add: Other | (2) | 3 | (4) | 5 |
Segment income (loss) | (4) | 1 | (17) | (7) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 744 |  | 744 |  | 91
Eliminations, Corporate and Reconciling Items | Duke Energy Progress | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Eliminations, Corporate and Reconciling Items | Duke Energy Florida |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 0 | 0 | 0 | 0 |
Less: |  |  |  |  |
Operation, maintenance and other | 2 | 0 | 11 | 9 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Property and other taxes | 0 | 0 | 0 | 0 |
Interest expense | 0 | 0 | 0 | 0 |
Income tax expense (benefit) | (1) | 0 | (3) | (2) |
Add: Other | 0 | 1 | (2) | 3 |
Segment income (loss) | (1) | 1 | (10) | (4) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 85 |  | 85 |  | 20
Eliminations, Corporate and Reconciling Items | Duke Energy Florida | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Eliminations, Corporate and Reconciling Items | Duke Energy Ohio |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 0 | 0 | 0 | 0 |
Less: |  |  |  |  |
Operation, maintenance and other | 1 | 0 | 5 | 4 |
Depreciation and amortization | 1 | 0 | 0 | 0 |
Property and other taxes | 1 | 0 | 1 | 0 |
Interest expense | 0 | 2 | 1 | 1 |
Income tax expense (benefit) | (1) | (1) | (2) | (2) |
Add: Other | 1 | 0 | 0 | (1) |
Segment income (loss) | (1) | (1) | (5) | (4) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 192 |  | 192 |  | 51
Eliminations, Corporate and Reconciling Items | Duke Energy Ohio | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Eliminations, Corporate and Reconciling Items | Duke Energy Ohio | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Eliminations, Corporate and Reconciling Items | Duke Energy Indiana |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 0 | 0 | 0 | 0 |
Less: |  |  |  |  |
Operation, maintenance and other | 2 | 0 | 7 | 2 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Property and other taxes | 0 | 0 | 0 | 0 |
Interest expense | 0 | 0 | 0 | 0 |
Income tax expense (benefit) | 0 | 0 | (2) | 0 |
Add: Other | 0 | 1 | (1) | 0 |
Segment income (loss) | (2) | 1 | (6) | (2) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 204 |  | 204 |  | 1
Eliminations, Corporate and Reconciling Items | Duke Energy Indiana | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Eliminations, Corporate and Reconciling Items | Piedmont |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 0 | 0 | 0 | 0 |
Less: |  |  |  |  |
Operation, maintenance and other | 8 | 1 | 12 | 3 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Property and other taxes | 0 | 0 | 0 | 0 |
Interest expense | 0 | 0 | 1 | 0 |
Income tax expense (benefit) | (1) | 0 | (2) | 1 |
Equity in earnings of unconsolidated affiliates | 3 | 2 | 6 | 6 |
Add: Other | 0 | 0 | 0 | 0 |
Segment income (loss) | (4) | 1 | (5) | 2 |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 89 |  | 89 |  | 92
Eliminations, Corporate and Reconciling Items | Piedmont | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Eliminations and Reconciling Items |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | (34) | (30) | (101) | (90) |
Eliminations |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | (72) | (72) | (215) | (213) |
Less: |  |  |  |  |
Operation, maintenance and other | (53) | (47) | (150) | (146) |
Depreciation and amortization | (7) | (8) | (21) | (21) |
Property and other taxes | 1 | (1) | 1 | (1) |
Impairment of assets and other charges | 1 | 0 | 0 | 0 |
Interest expense | (19) | (30) | (64) | (98) |
Income tax expense (benefit) | 1 | (1) | 1 | 0 |
Noncontrolling interests | (1) | 0 | (1) | (1) |
Preferred dividends | 0 | 0 | 0 | 0 |
Preferred redemption costs |  | 0 |  | 0 |
Equity in earnings of unconsolidated affiliates | (1) | 0 | 0 | 0 |
Add: Other | (24) | (35) | (79) | (113) |
Segment income (loss) | 0 | 0 | 0 | 0 |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 0 |  | 0 |  | 0
Eliminations | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | (20) | (20) | (60) | (59) |
Eliminations | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Eliminations | Progress Energy |  |  |  |  |
Less: |  |  |  |  |
Impairment of assets and other charges | 0 |  | 0 |  |
Eliminations | Duke Energy Progress |  |  |  |  |
Less: |  |  |  |  |
Impairment of assets and other charges | 0 |  | 0 |  |
Total Reportable Segments |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 8,536 | 8,142 | 24,278 | 22,967 |
Total Reportable Segments | Operating Segments |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 8,574 | 8,184 | 24,392 | 23,090 |
Less: |  |  |  |  |
Operation, maintenance and other | 1,853 | 1,500 | 5,125 | 4,324 |
Depreciation and amortization | 1,554 | 1,452 | 4,509 | 4,117 |
Property and other taxes | 435 | 381 | 1,272 | 1,153 |
Impairment of assets and other charges | (1) | (5) | (2) | 38 |
Interest expense | 589 | 581 | 1,784 | 1,690 |
Income tax expense (benefit) | 254 | 230 | 730 | 688 |
Noncontrolling interests | 34 | 31 | 82 | 66 |
Preferred dividends | 0 | 0 | 0 | 0 |
Preferred redemption costs |  | 0 |  | 0 |
Equity in earnings of unconsolidated affiliates | 5 | 5 | 11 | 7 |
Add: Other | 190 | 141 | 522 | 452 |
Segment income (loss) | 1,632 | 1,426 | 4,457 | 3,827 |
Capital investments expenditures and acquisitions |  |  | 9,636 | 8,996 |
Total Assets | 188,115 |  | 188,115 |  | 182,141
Total Reportable Segments | Operating Segments | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 2,309 | 2,664 | 6,326 | 7,266 |
Total Reportable Segments | Operating Segments | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 110 | 70 | 642 | 380 |
Total Reportable Segments | Operating Segments | Duke Energy Ohio |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 679 | 605 | 2,099 | 1,891 |
Less: |  |  |  |  |
Operation, maintenance and other | 126 | 131 | 361 | 374 |
Depreciation and amortization | 119 | 102 | 353 | 297 |
Property and other taxes | 108 | 99 | 325 | 303 |
Interest expense | 52 | 50 | 149 | 143 |
Income tax expense (benefit) | 14 | 8 | 49 | 44 |
Add: Other | 6 | 2 | 18 | 13 |
Segment income (loss) | 79 | 53 | 247 | 227 |
Capital investments expenditures and acquisitions |  |  | 709 | 640 |
Total Assets | 13,080 |  | 13,080 |  | 12,717
Total Reportable Segments | Operating Segments | Duke Energy Ohio | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 175 | 146 | 485 | 416 |
Total Reportable Segments | Operating Segments | Duke Energy Ohio | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 12 | 18 | 148 | 100 |
Total Reportable Segments | Eliminations |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | (38) | (42) | (114) | (123) |
Electric Utilities and Infrastructure |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 8,165 | 7,833 | 22,320 | 21,420 |
Electric Utilities and Infrastructure | Operating Segments |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 8,180 | 7,852 | 22,365 | 21,475 |
Less: |  |  |  |  |
Operation, maintenance and other | 1,728 | 1,387 | 4,746 | 3,965 |
Depreciation and amortization | 1,448 | 1,352 | 4,184 | 3,823 |
Property and other taxes | 394 | 345 | 1,143 | 1,033 |
Impairment of assets and other charges | (1) | (5) | (2) | 38 |
Interest expense | 522 | 514 | 1,587 | 1,501 |
Income tax expense (benefit) | 264 | 244 | 653 | 631 |
Noncontrolling interests | 34 | 31 | 82 | 66 |
Preferred dividends | 0 | 0 | 0 | 0 |
Preferred redemption costs |  | 0 |  | 0 |
Equity in earnings of unconsolidated affiliates | 0 | 2 | 0 | 4 |
Add: Other | 176 | 129 | 482 | 406 |
Segment income (loss) | 1,658 | 1,451 | 4,128 | 3,562 |
Capital investments expenditures and acquisitions |  |  | 8,789 | 7,969 |
Total Assets | 169,647 |  | 169,647 |  | 164,010
Electric Utilities and Infrastructure | Operating Segments | Operating revenues |  |  |  |  |
Less: |  |  |  |  |
Customer billing adjustments |  | 17 |  | 17 |
Electric Utilities and Infrastructure | Operating Segments | Operations, maintenance and other |  |  |  |  |
Less: |  |  |  |  |
Income (expense) related to rate case order |  |  |  | 2 |
Electric Utilities and Infrastructure | Operating Segments | Impairment of assets and other charges |  |  |  |  |
Less: |  |  |  |  |
Income (expense) related to rate case order |  |  |  | 42 |
Electric Utilities and Infrastructure | Operating Segments | Interest expense |  |  |  |  |
Less: |  |  |  |  |
Income (expense) related to rate case order |  |  |  | (11) |
Electric Utilities and Infrastructure | Operating Segments | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 2,309 | 2,664 | 6,326 | 7,266 |
Electric Utilities and Infrastructure | Operating Segments | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Carolinas |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 2,632 | 2,707 | 7,387 | 7,411 |
Less: |  |  |  |  |
Operation, maintenance and other | 477 | 461 | 1,439 | 1,335 |
Depreciation and amortization | 488 | 472 | 1,402 | 1,306 |
Property and other taxes | 96 | 88 | 283 | 271 |
Impairment of assets and other charges | 1 | (2) | 0 | 32 |
Interest expense | 184 | 189 | 584 | 537 |
Income tax expense (benefit) | 54 | 50 | 146 | 159 |
Add: Other | 66 | 59 | 195 | 184 |
Segment income (loss) | 692 | 586 | 1,648 | 1,424 |
Capital investments expenditures and acquisitions |  |  | 3,159 | 2,923 |
Total Assets | 57,700 |  | 57,700 |  | 54,782
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Carolinas | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 706 | 922 | 2,080 | 2,531 |
Electric Utilities and Infrastructure | Operating Segments | Progress Energy |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 4,070 | 3,854 | 11,098 | 10,430 |
Less: |  |  |  |  |
Operation, maintenance and other | 935 | 646 | 2,436 | 1,833 |
Depreciation and amortization | 670 | 640 | 1,910 | 1,795 |
Property and other taxes | 201 | 170 | 548 | 494 |
Impairment of assets and other charges | (2) | (3) | (2) | 6 |
Interest expense | 243 | 241 | 744 | 709 |
Income tax expense (benefit) | 155 | 142 | 394 | 351 |
Add: Other | 81 | 53 | 218 | 170 |
Segment income (loss) | 774 | 687 | 1,980 | 1,683 |
Capital investments expenditures and acquisitions |  |  | 4,320 | 3,891 |
Total Assets | 70,292 |  | 70,292 |  | 67,951
Electric Utilities and Infrastructure | Operating Segments | Progress Energy | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 1,175 | 1,384 | 3,306 | 3,729 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Progress |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 1,913 | 1,914 | 5,612 | 5,338 |
Less: |  |  |  |  |
Operation, maintenance and other | 358 | 374 | 1,082 | 1,063 |
Depreciation and amortization | 373 | 354 | 1,049 | 999 |
Property and other taxes | 54 | 43 | 159 | 144 |
Impairment of assets and other charges | (2) | (3) | (2) | 6 |
Interest expense | 125 | 127 | 392 | 370 |
Income tax expense (benefit) | 58 | 48 | 156 | 137 |
Add: Other | 58 | 32 | 147 | 104 |
Segment income (loss) | 376 | 324 | 995 | 827 |
Capital investments expenditures and acquisitions |  |  | 2,372 | 2,036 |
Total Assets | 41,163 |  | 41,163 |  | 39,402
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Progress | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 629 | 679 | 1,928 | 1,896 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Florida |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 2,157 | 1,940 | 5,486 | 5,092 |
Less: |  |  |  |  |
Operation, maintenance and other | 577 | 272 | 1,354 | 770 |
Depreciation and amortization | 297 | 286 | 861 | 796 |
Property and other taxes | 147 | 127 | 389 | 350 |
Interest expense | 118 | 114 | 352 | 339 |
Income tax expense (benefit) | 97 | 94 | 238 | 214 |
Add: Other | 23 | 21 | 71 | 66 |
Segment income (loss) | 398 | 363 | 985 | 856 |
Capital investments expenditures and acquisitions |  |  | 1,948 | 1,855 |
Total Assets | 29,129 |  | 29,129 |  | 28,549
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Florida | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 546 | 705 | 1,378 | 1,833 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Ohio |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 561 | 497 | 1,546 | 1,431 |
Less: |  |  |  |  |
Operation, maintenance and other | 98 | 106 | 277 | 287 |
Depreciation and amortization | 83 | 70 | 242 | 201 |
Property and other taxes | 87 | 79 | 253 | 230 |
Interest expense | 34 | 32 | 97 | 93 |
Income tax expense (benefit) | 13 | 10 | 31 | 33 |
Add: Other | 4 | 3 | 12 | 10 |
Segment income (loss) | 75 | 57 | 173 | 181 |
Capital investments expenditures and acquisitions |  |  | 457 | 421 |
Total Assets | 8,433 |  | 8,433 |  | 8,211
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Ohio | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 175 | 146 | 485 | 416 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Ohio | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Indiana |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 992 | 836 | 2,671 | 2,342 |
Less: |  |  |  |  |
Operation, maintenance and other | 212 | 169 | 594 | 508 |
Depreciation and amortization | 203 | 166 | 617 | 507 |
Property and other taxes | 9 | 7 | 44 | 37 |
Interest expense | 66 | 58 | 182 | 173 |
Income tax expense (benefit) | 24 | 29 | 62 | 65 |
Add: Other | 15 | 15 | 47 | 44 |
Segment income (loss) | 169 | 155 | 416 | 335 |
Capital investments expenditures and acquisitions |  |  | 841 | 711 |
Total Assets | 15,961 |  | 15,961 |  | 15,726
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Indiana | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 324 | 267 | 803 | 761 |
Electric Utilities and Infrastructure | Eliminations |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | (15) | (19) | (45) | (55) |
Gas Utilities and Infrastructure |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 371 | 309 | 1,958 | 1,547 |
Gas Utilities and Infrastructure | Operating Segments |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 394 | 332 | 2,027 | 1,615 |
Less: |  |  |  |  |
Operation, maintenance and other | 125 | 113 | 379 | 359 |
Depreciation and amortization | 106 | 100 | 325 | 294 |
Property and other taxes | 41 | 36 | 129 | 120 |
Impairment of assets and other charges | 0 | 0 | 0 | 0 |
Interest expense | 67 | 67 | 197 | 189 |
Income tax expense (benefit) | (10) | (14) | 77 | 57 |
Noncontrolling interests | 0 | 0 | 0 | 0 |
Preferred dividends | 0 | 0 | 0 | 0 |
Preferred redemption costs |  | 0 |  | 0 |
Equity in earnings of unconsolidated affiliates | 5 | 3 | 11 | 3 |
Add: Other | 14 | 12 | 40 | 46 |
Segment income (loss) | (26) | (25) | 329 | 265 |
Capital investments expenditures and acquisitions |  |  | 847 | 1,027 |
Total Assets | 18,468 |  | 18,468 |  | 18,131
Gas Utilities and Infrastructure | Operating Segments | Operating revenues |  |  |  |  |
Less: |  |  |  |  |
Customer billing adjustments |  |  |  | 1 |
Gas Utilities and Infrastructure | Operating Segments | Operations, maintenance and other |  |  |  |  |
Less: |  |  |  |  |
Customer billing adjustments |  | 1 |  |  |
Gas Utilities and Infrastructure | Operating Segments | Other income and expenses |  |  |  |  |
Less: |  |  |  |  |
Customer billing adjustments |  | 3 |  | 3 |
Gas Utilities and Infrastructure | Operating Segments | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Gas Utilities and Infrastructure | Operating Segments | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 110 | 70 | 642 | 380 |
Gas Utilities and Infrastructure | Operating Segments | Duke Energy Ohio |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 118 | 108 | 553 | 460 |
Less: |  |  |  |  |
Operation, maintenance and other | 28 | 25 | 84 | 87 |
Depreciation and amortization | 36 | 32 | 111 | 96 |
Property and other taxes | 21 | 20 | 72 | 73 |
Interest expense | 18 | 18 | 52 | 50 |
Income tax expense (benefit) | 1 | (2) | 18 | 11 |
Add: Other | 2 | (1) | 6 | 3 |
Segment income (loss) | 4 | (4) | 74 | 46 |
Capital investments expenditures and acquisitions |  |  | 252 | 219 |
Total Assets | 4,647 |  | 4,647 |  | 4,506
Gas Utilities and Infrastructure | Operating Segments | Duke Energy Ohio | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Gas Utilities and Infrastructure | Operating Segments | Duke Energy Ohio | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 12 | 18 | 148 | 100 |
Gas Utilities and Infrastructure | Operating Segments | Piedmont |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 271 | 219 | 1,463 | 1,139 |
Less: |  |  |  |  |
Operation, maintenance and other | 94 | 86 | 289 | 264 |
Depreciation and amortization | 69 | 65 | 210 | 191 |
Property and other taxes | 19 | 16 | 56 | 47 |
Interest expense | 48 | 47 | 142 | 135 |
Income tax expense (benefit) | (11) | (10) | 58 | 48 |
Equity in earnings of unconsolidated affiliates | 0 | 0 | 0 | 0 |
Add: Other | 12 | 12 | 34 | 42 |
Segment income (loss) | (34) | (25) | 248 | 216 |
Capital investments expenditures and acquisitions |  |  | 595 | 800 |
Total Assets | 11,947 |  | 11,947 |  | $ 11,707
Gas Utilities and Infrastructure | Operating Segments | Piedmont | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 98 | 52 | 494 | 280 |
Gas Utilities and Infrastructure | Eliminations |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | $ (23) | $ (23) | $ (69) | $ (68) |

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