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Business Segments (Business Segment Data) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | $ 7,508 | $ 7,172 | $ 15,757 | $ 14,843 |
Less: |  |  |  |  |
Operation, maintenance and other | 1,655 | 1,320 | 3,154 | 2,699 |
Depreciation and amortization | 1,583 | 1,409 | 3,095 | 2,796 |
Property and other taxes | 415 | 393 | 843 | 779 |
Impairment of assets and other charges | 3 | 43 | 3 | 44 |
Interest expense | 897 | 824 | 1,786 | 1,641 |
Income tax expense (benefit) | 119 | 140 | 312 | 318 |
Noncontrolling interests | 23 | 21 | 48 | 34 |
Preferred dividends | 13 | 14 | 27 | 53 |
Equity in earnings of unconsolidated affiliates | 11 | 21 | 22 | 38 |
Add: Other | 197 | 173 | 335 | 354 |
Segment income (loss) | 972 | 896 | 2,337 | 1,998 |
Loss From Discontinued Operations, net of tax | (1) | (10) | (1) | (13) |
Net Income Available to Duke Energy Corporation Common Stockholders | 971 | 886 | 2,336 | 1,985 |
Income (loss) attributable to noncontrolling interest | 23 | 21 | 48 | 34 |
Net income | 1,007 | 921 | 2,411 | 2,072 |
Capital investments expenditures and acquisitions |  |  | 6,428 | 6,212 |
Total Assets | 189,713 | 181,575 | 189,713 | 181,575 | $ 186,343
Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 1,878 | 2,228 | 3,977 | 4,563 |
Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 158 | 78 | 532 | 310 |
Duke Energy Carolinas |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 2,231 | 2,297 | 4,755 | 4,704 |
Less: |  |  |  |  |
Cost of sales | 571 | 749 | 1,374 | 1,609 |
Operation, maintenance and other | 500 | 444 | 984 | 895 |
Depreciation and amortization | 482 | 437 | 914 | 834 |
Property and other taxes | 85 | 89 | 187 | 183 |
Impairment of assets and other charges | (1) | 33 | (1) | 34 |
Interest expense | 200 | 168 | 400 | 348 |
Income tax expense (benefit) | 36 | 48 | 87 | 104 |
Add: Other | 67 | 62 | 128 | 124 |
Segment income (loss) | 425 | 391 | 938 | 821 |
Net income |  |  | 938 | 821 |
Capital investments expenditures and acquisitions |  |  | 2,145 | 1,949 |
Total Assets | 56,599 | 53,374 | 56,599 | 53,374 | 55,005
Duke Energy Carolinas | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 571 | 749 | 1,374 | 1,609 |
Progress Energy |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 3,569 | 3,357 | 7,036 | 6,585 |
Less: |  |  |  |  |
Cost of sales | 1,025 | 1,202 | 2,131 | 2,345 |
Operation, maintenance and other | 843 | 588 | 1,531 | 1,216 |
Depreciation and amortization | 609 | 568 | 1,240 | 1,155 |
Property and other taxes | 175 | 166 | 347 | 324 |
Impairment of assets and other charges | 0 | 9 | 0 | 9 |
Interest expense | 283 | 265 | 558 | 525 |
Income tax expense (benefit) | 108 | 104 | 218 | 190 |
Add: Other | 81 | 66 | 142 | 135 |
Segment income (loss) | 607 | 521 | 1,153 | 956 |
Net income | 607 | 521 | 1,153 | 956 |
Capital investments expenditures and acquisitions |  |  | 2,742 | 2,623 |
Total Assets | 74,311 | 69,464 | 74,311 | 69,464 | 71,636
Progress Energy | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 1,025 | 1,202 | 2,131 | 2,345 |
Duke Energy Progress |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 1,681 | 1,636 | 3,699 | 3,424 |
Less: |  |  |  |  |
Cost of sales | 574 | 597 | 1,299 | 1,217 |
Operation, maintenance and other | 340 | 326 | 738 | 701 |
Depreciation and amortization | 319 | 306 | 676 | 645 |
Property and other taxes | 45 | 50 | 105 | 101 |
Impairment of assets and other charges | 0 | 9 | 0 | 9 |
Interest expense | 139 | 123 | 267 | 243 |
Income tax expense (benefit) | 39 | 39 | 95 | 87 |
Add: Other | 50 | 37 | 87 | 74 |
Segment income (loss) | 275 | 223 | 606 | 495 |
Net income |  |  | 606 | 495 |
Capital investments expenditures and acquisitions |  |  | 1,524 | 1,373 |
Total Assets | 41,558 | 38,661 | 41,558 | 38,661 | 39,493
Duke Energy Progress | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 574 | 597 | 1,299 | 1,217 |
Duke Energy Florida |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 1,885 | 1,716 | 3,329 | 3,152 |
Less: |  |  |  |  |
Cost of sales | 451 | 605 | 832 | 1,128 |
Operation, maintenance and other | 500 | 256 | 786 | 507 |
Depreciation and amortization | 290 | 262 | 564 | 510 |
Property and other taxes | 130 | 117 | 242 | 223 |
Interest expense | 116 | 114 | 234 | 225 |
Income tax expense (benefit) | 81 | 75 | 139 | 118 |
Add: Other | 27 | 22 | 46 | 47 |
Segment income (loss) | 344 | 309 | 578 | 488 |
Net income |  |  | 578 | 488 |
Capital investments expenditures and acquisitions |  |  | 1,218 | 1,251 |
Total Assets | 29,092 | 27,078 | 29,092 | 27,078 | 28,569
Duke Energy Florida | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 451 | 605 | 832 | 1,128 |
Duke Energy Ohio |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 654 | 608 | 1,420 | 1,286 |
Less: |  |  |  |  |
Operation, maintenance and other | 115 | 121 | 239 | 247 |
Depreciation and amortization | 121 | 96 | 233 | 195 |
Property and other taxes | 101 | 102 | 217 | 204 |
Interest expense | 51 | 47 | 98 | 92 |
Income tax expense (benefit) | 12 | 16 | 34 | 35 |
Add: Other | 6 | 4 | 11 | 10 |
Segment income (loss) | 64 | 77 | 164 | 171 |
Net income |  |  | 164 | 171 |
Capital investments expenditures and acquisitions |  |  | 471 | 417 |
Total Assets | 12,996 | 12,601 | 12,996 | 12,601 | 12,768
Duke Energy Ohio | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 161 | 132 | 310 | 270 |
Duke Energy Ohio | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 35 | 21 | 136 | 82 |
Duke Energy Indiana |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 821 | 747 | 1,679 | 1,506 |
Less: |  |  |  |  |
Cost of sales | 219 | 223 | 479 | 494 |
Operation, maintenance and other | 192 | 161 | 387 | 341 |
Depreciation and amortization | 222 | 172 | 414 | 341 |
Property and other taxes | 17 | 16 | 35 | 30 |
Interest expense | 57 | 58 | 116 | 115 |
Income tax expense (benefit) | 18 | 22 | 36 | 36 |
Add: Other | 21 | 15 | 31 | 28 |
Segment income (loss) | 117 | 110 | 243 | 177 |
Net income |  |  | 243 | 177 |
Capital investments expenditures and acquisitions |  |  | 526 | 489 |
Total Assets | 16,180 | 15,649 | 16,180 | 15,649 | 15,727
Duke Energy Indiana | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 219 | 223 | 479 | 494 |
Piedmont |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 335 | 244 | 1,192 | 920 |
Less: |  |  |  |  |
Cost of sales | 124 | 58 | 396 | 228 |
Operation, maintenance and other | 103 | 85 | 199 | 180 |
Depreciation and amortization | 71 | 64 | 141 | 126 |
Property and other taxes | 19 | 16 | 37 | 31 |
Interest expense | 48 | 43 | 95 | 88 |
Income tax expense (benefit) | (8) | (1) | 68 | 59 |
Equity in earnings of unconsolidated affiliates | 1 | 2 | 3 | 4 |
Add: Other | 11 | 15 | 22 | 30 |
Segment income (loss) | (10) | (4) | 281 | 242 |
Net income | (10) | (4) | 281 | 242 |
Capital investments expenditures and acquisitions |  |  | 380 | 571 |
Total Assets | 11,931 | 11,301 | 11,931 | 11,301 | $ 11,799
Piedmont | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 124 | 58 | 396 | 228 |
Other |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 7 | 11 | 15 | 18 |
Less: |  |  |  |  |
Operation, maintenance and other | (23) | (8) | (21) | (26) |
Depreciation and amortization | 77 | 73 | 154 | 144 |
Property and other taxes | 3 | 4 | 6 | 7 |
Impairment of assets and other charges | 5 | 1 | 5 | 1 |
Interest expense | 318 | 306 | 636 | 600 |
Income tax expense (benefit) | (77) | (77) | (164) | (141) |
Noncontrolling interests | 0 | 0 | 0 | 0 |
Preferred dividends | 13 | 14 | 27 | 53 |
Equity in earnings of unconsolidated affiliates | 9 | 19 | 15 | 36 |
Add: Other | 39 | 54 | 58 | 121 |
Segment income (loss) | (228) | (200) | (488) | (403) |
Capital investments expenditures and acquisitions |  |  | 156 | 140 |
Total Assets | 3,988 | 4,205 | 3,988 | 4,205 |
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 | 40 | 82 | 78 |
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 | 12 | 10 | 22 | 21 |
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) | (3) | (5) | (5) |
Add: Other | (1) | (1) | (1) | (1) |
Segment income (loss) | (10) | (8) | (18) | (17) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 264 | 214 | 264 | 214 |
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 | 3 | 5 | 8 | 9 |
Less: |  |  |  |  |
Operation, maintenance and other | 15 | 17 | 30 | 29 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Property and other taxes | 0 | (1) | 0 | 0 |
Impairment of assets and other charges |  | 0 |  | 0 |
Interest expense | 28 | 28 | 57 | 57 |
Income tax expense (benefit) | (13) | (10) | (21) | (19) |
Add: Other | 5 | 10 | 5 | 18 |
Segment income (loss) | (22) | (19) | (53) | (40) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 4,822 | 3,844 | 4,822 | 3,844 |
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 | 7 | 6 | 14 | 12 |
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) | (1) | 0 | (3) | (2) |
Add: Other | 0 | 1 | (2) | 2 |
Segment income (loss) | (6) | (5) | (13) | (8) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 1,072 | 99 | 1,072 | 99 |
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 | 5 | 5 | 9 | 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) | 0 | 0 | (2) | (2) |
Add: Other | 1 | 2 | (2) | 2 |
Segment income (loss) | (4) | (3) | (9) | (5) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 89 | 20 | 89 | 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 | 3 | 4 | 4 |
Depreciation and amortization | (1) | 0 | (1) | 0 |
Property and other taxes | 0 | 0 | 0 | 0 |
Interest expense | 1 | (2) | 1 | (1) |
Income tax expense (benefit) | 0 | (1) | (1) | (1) |
Add: Other | 0 | (1) | (1) | (1) |
Segment income (loss) | (1) | (1) | (4) | (3) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 36 | 178 | 36 | 178 |
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 | 3 | 0 | 5 | 2 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Property and other taxes | 0 | 0 | 0 | 0 |
Interest expense | 1 | 0 | 0 | 0 |
Income tax expense (benefit) | (2) | 0 | (2) | 0 |
Add: Other | (1) | (1) | (1) | (1) |
Segment income (loss) | (3) | (1) | (4) | (3) |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 240 | 59 | 240 | 59 |
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 | 2 | 2 | 4 | 2 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Property and other taxes | 0 | 0 | 0 | 0 |
Interest expense | 1 | 0 | 1 | 0 |
Income tax expense (benefit) | (1) | 0 | (1) | 1 |
Equity in earnings of unconsolidated affiliates | 1 | 2 | 3 | 4 |
Add: Other | 0 | 0 | 0 | 0 |
Segment income (loss) | (1) | 0 | (1) | 1 |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 87 | 93 | 87 | 93 |
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 | (33) | (29) | (67) | (60) |
Eliminations |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | (70) | (69) | (143) | (141) |
Less: |  |  |  |  |
Operation, maintenance and other | (45) | (51) | (97) | (99) |
Depreciation and amortization | (8) | (6) | (14) | (13) |
Property and other taxes | 0 | 0 | 0 | 0 |
Impairment of assets and other charges | (1) | 0 | (1) | 0 |
Interest expense | (21) | (31) | (45) | (68) |
Income tax expense (benefit) | 0 | 1 | 0 | 1 |
Noncontrolling interests | 0 | (1) | 0 | (1) |
Preferred dividends | 0 | 0 | 0 | 0 |
Equity in earnings of unconsolidated affiliates | 1 | 1 | 1 | 0 |
Add: Other | (26) | (39) | (55) | (78) |
Segment income (loss) | 0 | 0 | 0 | 0 |
Capital investments expenditures and acquisitions |  |  | 0 | 0 |
Total Assets | 0 | 0 | 0 | 0 |
Eliminations | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | (20) | (19) | (40) | (39) |
Eliminations | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 0 | 0 | 0 | 0 |
Total Reportable Segments |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 7,501 | 7,161 | 15,742 | 14,825 |
Total Reportable Segments | Operating Segments |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 7,538 | 7,201 | 15,818 | 14,906 |
Less: |  |  |  |  |
Operation, maintenance and other | 1,723 | 1,379 | 3,272 | 2,824 |
Depreciation and amortization | 1,514 | 1,342 | 2,955 | 2,665 |
Property and other taxes | 412 | 389 | 837 | 772 |
Impairment of assets and other charges | (1) | 42 | (1) | 43 |
Interest expense | 600 | 549 | 1,195 | 1,109 |
Income tax expense (benefit) | 196 | 216 | 476 | 458 |
Noncontrolling interests | 23 | 22 | 48 | 35 |
Preferred dividends | 0 | 0 | 0 | 0 |
Equity in earnings of unconsolidated affiliates | 1 | 1 | 6 | 2 |
Add: Other | 184 | 158 | 332 | 311 |
Segment income (loss) | 1,200 | 1,096 | 2,825 | 2,401 |
Capital investments expenditures and acquisitions |  |  | 6,272 | 6,072 |
Total Assets | 185,725 | 177,370 | 185,725 | 177,370 |
Total Reportable Segments | Operating Segments | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 1,898 | 2,247 | 4,017 | 4,602 |
Total Reportable Segments | Operating Segments | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 158 | 78 | 532 | 310 |
Total Reportable Segments | Operating Segments | Duke Energy Ohio |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 654 | 608 | 1,420 | 1,286 |
Less: |  |  |  |  |
Operation, maintenance and other | 114 | 118 | 235 | 243 |
Depreciation and amortization | 122 | 96 | 234 | 195 |
Property and other taxes | 101 | 102 | 217 | 204 |
Interest expense | 50 | 49 | 97 | 93 |
Income tax expense (benefit) | 12 | 17 | 35 | 36 |
Add: Other | 6 | 5 | 12 | 11 |
Segment income (loss) | 65 | 78 | 168 | 174 |
Capital investments expenditures and acquisitions |  |  | 471 | 417 |
Total Assets | 12,960 | 12,423 | 12,960 | 12,423 |
Total Reportable Segments | Operating Segments | Duke Energy Ohio | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 161 | 132 | 310 | 270 |
Total Reportable Segments | Operating Segments | Duke Energy Ohio | Cost of natural gas |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 35 | 21 | 136 | 82 |
Total Reportable Segments | Eliminations |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | (37) | (40) | (76) | (81) |
Electric Utilities and Infrastructure |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 7,030 | 6,802 | 14,155 | 13,587 |
Electric Utilities and Infrastructure | Operating Segments |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 7,045 | 6,820 | 14,185 | 13,623 |
Less: |  |  |  |  |
Operation, maintenance and other | 1,594 | 1,262 | 3,018 | 2,578 |
Depreciation and amortization | 1,402 | 1,246 | 2,736 | 2,471 |
Property and other taxes | 371 | 351 | 749 | 688 |
Impairment of assets and other charges | (1) | 42 | (1) | 43 |
Interest expense | 535 | 488 | 1,065 | 987 |
Income tax expense (benefit) | 200 | 214 | 389 | 387 |
Noncontrolling interests | 23 | 22 | 48 | 35 |
Preferred dividends | 0 | 0 | 0 | 0 |
Equity in earnings of unconsolidated affiliates | 0 | 1 | 0 | 2 |
Add: Other | 171 | 141 | 306 | 277 |
Segment income (loss) | 1,194 | 1,090 | 2,470 | 2,111 |
Capital investments expenditures and acquisitions |  |  | 5,724 | 5,349 |
Total Assets | 167,420 | 159,770 | 167,420 | 159,770 |
Electric Utilities and Infrastructure | Operating Segments | South Carolina rate case order |  |  |  |  |
Less: |  |  |  |  |
Operation, maintenance and other |  | 2 |  | 2 |
Impairment of assets and other charges |  | 42 |  | 42 |
Interest expense |  | (11) |  | (11) |
Electric Utilities and Infrastructure | Operating Segments | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 1,898 | 2,247 | 4,017 | 4,602 |
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 | 2,231 | 2,297 | 4,755 | 4,704 |
Less: |  |  |  |  |
Operation, maintenance and other | 488 | 434 | 962 | 874 |
Depreciation and amortization | 482 | 437 | 914 | 834 |
Property and other taxes | 85 | 89 | 187 | 183 |
Impairment of assets and other charges | (1) | 33 | (1) | 34 |
Interest expense | 200 | 168 | 400 | 348 |
Income tax expense (benefit) | 39 | 51 | 92 | 109 |
Add: Other | 68 | 63 | 129 | 125 |
Segment income (loss) | 435 | 399 | 956 | 838 |
Capital investments expenditures and acquisitions |  |  | 2,145 | 1,949 |
Total Assets | 56,335 | 53,160 | 56,335 | 53,160 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Carolinas | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 571 | 749 | 1,374 | 1,609 |
Electric Utilities and Infrastructure | Operating Segments | Progress Energy |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 3,566 | 3,352 | 7,028 | 6,576 |
Less: |  |  |  |  |
Operation, maintenance and other | 828 | 571 | 1,501 | 1,187 |
Depreciation and amortization | 609 | 568 | 1,240 | 1,155 |
Property and other taxes | 175 | 167 | 347 | 324 |
Impairment of assets and other charges |  | 9 |  | 9 |
Interest expense | 255 | 237 | 501 | 468 |
Income tax expense (benefit) | 121 | 114 | 239 | 209 |
Add: Other | 76 | 56 | 137 | 117 |
Segment income (loss) | 629 | 540 | 1,206 | 996 |
Capital investments expenditures and acquisitions |  |  | 2,742 | 2,623 |
Total Assets | 69,489 | 65,620 | 69,489 | 65,620 |
Electric Utilities and Infrastructure | Operating Segments | Progress Energy | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 1,025 | 1,202 | 2,131 | 2,345 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Progress |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 1,681 | 1,636 | 3,699 | 3,424 |
Less: |  |  |  |  |
Operation, maintenance and other | 333 | 320 | 724 | 689 |
Depreciation and amortization | 319 | 306 | 676 | 645 |
Property and other taxes | 45 | 50 | 105 | 101 |
Impairment of assets and other charges |  | 9 |  | 9 |
Interest expense | 139 | 123 | 267 | 243 |
Income tax expense (benefit) | 40 | 39 | 98 | 89 |
Add: Other | 50 | 36 | 89 | 72 |
Segment income (loss) | 281 | 228 | 619 | 503 |
Capital investments expenditures and acquisitions |  |  | 1,524 | 1,373 |
Total Assets | 40,486 | 38,562 | 40,486 | 38,562 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Progress | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 574 | 597 | 1,299 | 1,217 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Florida |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 1,885 | 1,716 | 3,329 | 3,152 |
Less: |  |  |  |  |
Operation, maintenance and other | 495 | 251 | 777 | 498 |
Depreciation and amortization | 290 | 262 | 564 | 510 |
Property and other taxes | 130 | 117 | 242 | 223 |
Interest expense | 116 | 114 | 234 | 225 |
Income tax expense (benefit) | 81 | 75 | 141 | 120 |
Add: Other | 26 | 20 | 48 | 45 |
Segment income (loss) | 348 | 312 | 587 | 493 |
Capital investments expenditures and acquisitions |  |  | 1,218 | 1,251 |
Total Assets | 29,003 | 27,058 | 29,003 | 27,058 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Florida | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 451 | 605 | 832 | 1,128 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Ohio |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 498 | 476 | 985 | 934 |
Less: |  |  |  |  |
Operation, maintenance and other | 87 | 88 | 179 | 181 |
Depreciation and amortization | 83 | 65 | 159 | 131 |
Property and other taxes | 80 | 80 | 166 | 151 |
Interest expense | 32 | 32 | 63 | 61 |
Income tax expense (benefit) | 9 | 13 | 18 | 23 |
Add: Other | 4 | 3 | 8 | 7 |
Segment income (loss) | 50 | 69 | 98 | 124 |
Capital investments expenditures and acquisitions |  |  | 303 | 273 |
Total Assets | 8,378 | 8,034 | 8,378 | 8,034 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Ohio | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 161 | 132 | 310 | 270 |
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 | 821 | 747 | 1,679 | 1,506 |
Less: |  |  |  |  |
Operation, maintenance and other | 189 | 161 | 382 | 339 |
Depreciation and amortization | 222 | 172 | 414 | 341 |
Property and other taxes | 17 | 16 | 35 | 30 |
Interest expense | 56 | 58 | 116 | 115 |
Income tax expense (benefit) | 20 | 22 | 38 | 36 |
Add: Other | 22 | 16 | 32 | 29 |
Segment income (loss) | 120 | 111 | 247 | 180 |
Capital investments expenditures and acquisitions |  |  | 526 | 489 |
Total Assets | 15,940 | 15,590 | 15,940 | 15,590 |
Electric Utilities and Infrastructure | Operating Segments | Duke Energy Indiana | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 219 | 223 | 479 | 494 |
Electric Utilities and Infrastructure | Eliminations |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | (15) | (18) | (30) | (36) |
Gas Utilities and Infrastructure |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 471 | 359 | 1,587 | 1,238 |
Gas Utilities and Infrastructure | Operating Segments |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 493 | 381 | 1,633 | 1,283 |
Less: |  |  |  |  |
Operation, maintenance and other | 129 | 117 | 254 | 246 |
Depreciation and amortization | 112 | 96 | 219 | 194 |
Property and other taxes | 41 | 38 | 88 | 84 |
Impairment of assets and other charges | 0 | 0 | 0 | 0 |
Interest expense | 65 | 61 | 130 | 122 |
Income tax expense (benefit) | (4) | 2 | 87 | 71 |
Noncontrolling interests | 0 | 0 | 0 | 0 |
Preferred dividends | 0 | 0 | 0 | 0 |
Equity in earnings of unconsolidated affiliates | 1 | 0 | 6 | 0 |
Add: Other | 13 | 17 | 26 | 34 |
Segment income (loss) | 6 | 6 | 355 | 290 |
Capital investments expenditures and acquisitions |  |  | 548 | 723 |
Total Assets | 18,305 | 17,600 | 18,305 | 17,600 |
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 | 158 | 78 | 532 | 310 |
Gas Utilities and Infrastructure | Operating Segments | Duke Energy Ohio |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 156 | 132 | 435 | 352 |
Less: |  |  |  |  |
Operation, maintenance and other | 27 | 30 | 56 | 62 |
Depreciation and amortization | 39 | 31 | 75 | 64 |
Property and other taxes | 21 | 22 | 51 | 53 |
Interest expense | 18 | 17 | 34 | 32 |
Income tax expense (benefit) | 3 | 4 | 17 | 13 |
Add: Other | 2 | 2 | 4 | 4 |
Segment income (loss) | 15 | 9 | 70 | 50 |
Capital investments expenditures and acquisitions |  |  | 168 | 144 |
Total Assets | 4,582 | 4,389 | 4,582 | 4,389 |
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 | 35 | 21 | 136 | 82 |
Gas Utilities and Infrastructure | Operating Segments | Piedmont |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | 335 | 244 | 1,192 | 920 |
Less: |  |  |  |  |
Operation, maintenance and other | 101 | 83 | 195 | 178 |
Depreciation and amortization | 71 | 64 | 141 | 126 |
Property and other taxes | 19 | 16 | 37 | 31 |
Interest expense | 47 | 43 | 94 | 88 |
Income tax expense (benefit) | (7) | (1) | 69 | 58 |
Equity in earnings of unconsolidated affiliates | 0 | 0 | 0 | 0 |
Add: Other | 11 | 15 | 22 | 30 |
Segment income (loss) | (9) | (4) | 282 | 241 |
Capital investments expenditures and acquisitions |  |  | 380 | 571 |
Total Assets | 11,844 | 11,208 | 11,844 | 11,208 |
Gas Utilities and Infrastructure | Operating Segments | Piedmont | Fuel used in electric generation and purchased power |  |  |  |  |
Less: |  |  |  |  |
Cost of sales | 124 | 58 | 396 | 228 |
Gas Utilities and Infrastructure | Eliminations |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Operating Revenues | $ (22) | $ (22) | $ (46) | $ (45) |

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