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Business Segments (Tables) | 12 Months Ended
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Dec. 31, 2021
Segment Reporting Information [Line Items] |
Business Segment Data | Business segment information is presented in the following tables. Segment assets presented exclude intercompany assets.
| Year Ended December 31, 2021
| Electric |  | Gas |  |  |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Commercial |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Renewables |  | Segments |  | Other |  | Eliminations |  | Total
Unaffiliated Revenues | $ | 22,570 |  |  | $ | 2,022 |  |  | $ | 476 |  |  | $ | 25,068 |  |  | $ | 29 |  |  | $ | — |  |  | $ | 25,097 |
Intersegment Revenues | 33 |  |  | 90 |  |  | — |  |  | 123 |  |  | 82 |  |  | (205) |  |  | — |
Total Revenues | $ | 22,603 |  |  | $ | 2,112 |  |  | $ | 476 |  |  | $ | 25,191 |  |  | $ | 111 |  |  | $ | (205) |  |  | $ | 25,097 |
Interest Expense | $ | 1,432 |  |  | $ | 142 |  |  | $ | 72 |  |  | $ | 1,646 |  |  | $ | 643 |  |  | $ | (9) |  |  | $ | 2,280 |
Depreciation and amortization | 4,251 |  |  | 303 |  |  | 225 |  |  | 4,779 |  |  | 237 |  |  | (26) |  |  | 4,990 |
Equity in earnings (losses) of unconsolidated affiliates | 7 |  |  | 8 |  |  | (34) |  |  | (19) |  |  | 47 |  |  | — |  |  | 28 |
Income tax expense (benefit) | 494 |  |  | 55 |  |  | (78) |  |  | 471 |  |  | (279) |  |  | — |  |  | 192 |
Segment income (loss)(a)(b)(c)(d) | 3,850 |  |  | 396 |  |  | 201 |  |  | 4,447 |  |  | (652) |  |  | — |  |  | 3,795 |
Less noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  | 329 |
Add back preferred stock dividend |  |  |  |  |  |  |  |  |  |  |  |  | 106 |
Income from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  |  |  |  | 7 |
Net income |  |  |  |  |  |  |  |  |  |  |  |  | $ | 3,579 |
Capital investments expenditures and acquisitions | $ | 7,653 |  |  | $ | 1,271 |  |  | $ | 543 |  |  | $ | 9,467 |  |  | $ | 285 |  |  | $ | — |  |  | $ | 9,752 |
Segment assets | 143,841 |  |  | 15,179 |  |  | 6,977 |  |  | 165,997 |  |  | 3,590 |  |  | — |  |  | 169,587 |
(a) Electric Utilities and Infrastructure includes $160 million of expense recorded within Impairment of assets and other charges, $77 million of income within Other Income and expenses, $5 million of expense within Operations, maintenance and other, $13 million of income within regulated operating revenues, $3 million of expense within interest expense and $6 million of expense within Depreciation and amortization on the Duke Energy Carolinas' Consolidated Statement of Operations related to the South Carolina Supreme Court decision on coal ash and insurance proceeds; it also includes $42 million of expense recorded within Impairment of assets and other charges, $34 million of income within Other Income and expenses, $7 million of expense within Operations, maintenance, and other, $15 million of income within Regulated electric operating revenues, $5 million of expense wit hin interest expense and $1 million of expense within Depreciation and amortization on the Duke Energy Progress' Consolidated Statement of Operations. See Notes 3 and 4 for more information. (b) Gas Utilities and Infrastructure includes $20 million, recorded within Equity in earnings (losses) of unconsolidated affiliates on the Consolidated Statements of Operations, related to natural gas pipeline investments. See Note 3 for additional information. (c) Commercial Renewables includes a $35 million loss related to Texas Storm Uri of which ($8 million) is recorded within Nonregulated electric and other revenues, $2 million within Operations, maintenance and other, $29 million within Equity in earnings (losses) of unconsolidated affiliates and $12 million within Loss Attributable to Noncontrolling Interests on the Consolidated Statements of Operations. See Note 4 for additional information. (d) Other includes $133 million recorded within Impairment of assets and other charges, $42 million within Operations, maintenance and other, and $17 million within Depreciation and amortization on the Consolidated Statements of Operations, related to the workplace and workplace realignment. See Note 10 for additional information.
| Year Ended December 31, 2020
| Electric |  | Gas |  |  |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Commercial |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Renewables |  | Segments |  | Other |  | Eliminations |  | Total
Unaffiliated Revenues | $ | 21,687 |  |  | $ | 1,653 |  |  | $ | 502 |  |  | $ | 23,842 |  |  | $ | 26 |  |  | $ | — |  |  | $ | 23,868 |
Intersegment Revenues | 33 |  |  | 95 |  |  | — |  |  | 128 |  |  | 71 |  |  | (199) |  |  | — |
Total Revenues | $ | 21,720 |  |  | $ | 1,748 |  |  | $ | 502 |  |  | $ | 23,970 |  |  | $ | 97 |  |  | $ | (199) |  |  | $ | 23,868 |
Interest Expense | $ | 1,320 |  |  | $ | 135 |  |  | $ | 66 |  |  | $ | 1,521 |  |  | $ | 657 |  |  | $ | (16) |  |  | $ | 2,162 |
Depreciation and amortization | 4,068 |  |  | 258 |  |  | 199 |  |  | 4,525 |  |  | 209 |  |  | (29) |  |  | 4,705 |
Equity in earnings (losses) of unconsolidated affiliates | (1) |  |  | (2,017) |  |  | — |  |  | (2,018) |  |  | 13 |  |  | — |  |  | (2,005) |
Income tax expense (benefit) | 340 |  |  | (349) |  |  | (65) |  |  | (74) |  |  | (162) |  |  | — |  |  | (236) |
Segment income (loss)(a)(b)(c) | 2,669 |  |  | (1,266) |  |  | 286 |  |  | 1,689 |  |  | (426) |  |  | — |  |  | 1,263 |
Less noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  | 295 |
Add back preferred stock dividend |  |  |  |  |  |  |  |  |  |  |  |  | 107 |
Income from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  |  |  |  | 7 |
Net income |  |  |  |  |  |  |  |  |  |  |  |  | $ | 1,082 |
Capital investments expenditures and acquisitions | $ | 7,629 |  |  | $ | 1,309 |  |  | $ | 1,219 |  |  | $ | 10,157 |  |  | $ | 264 |  |  | $ | — |  |  | $ | 10,421 |
Segment assets | 138,225 |  |  | 13,849 |  |  | 6,716 |  |  | 158,790 |  |  | 3,598 |  |  | — |  |  | 162,388 |
(a) Electric Utilities and Infrastructure includes $948 million of Impairment of assets and other charges and a reversal of $152 million included in Regulated electric operating revenue related to the CCR Settlement Agreement filed with the NCUC. Additionally, Electric Utilities and Infrastructure includes $19 million of Impairment of assets and other charges related to the Clemson University Combined Heat and Power Plant, $5 million of Impairment charges related to the natural gas pipeline assets and $16 million of shareholder contributions within Operations, maintenance and other related to Duke Energy Carolinas' and Duke Energy Progress' 2019 North Carolina rate cases. See Note 3 for additional information. (b) Gas Utilities and Infrastructure includes $2.1 billion recorded within Equity in (losses) earnings of unconsolidated affiliates and $7 million of Impairment of assets and other charges related to natural gas pipeline investments. See Notes 3 and 12 for additional information. (c) Other includes a $98 million reversal of 2018 severance costs due to a partial settlement in the Duke Energy Carolinas' 2019 North Carolina rate case. See Note 20 for additional information.
| Year Ended December 31, 2019
| Electric |  | Gas |  |  |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Commercial |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Renewables |  | Segments |  | Other |  | Eliminations |  | Total
Unaffiliated Revenues | $ | 22,798 |  |  | $ | 1,770 |  |  | $ | 487 |  |  | $ | 25,055 |  |  | $ | 24 |  |  | $ | — |  |  | $ | 25,079 |
Intersegment Revenues | 33 |  |  | 96 |  |  | — |  |  | 129 |  |  | 71 |  |  | (200) |  |  | — |
Total Revenues | $ | 22,831 |  |  | $ | 1,866 |  |  | $ | 487 |  |  | $ | 25,184 |  |  | $ | 95 |  |  | $ | (200) |  |  | $ | 25,079 |
Interest Expense | $ | 1,345 |  |  | $ | 117 |  |  | $ | 95 |  |  | $ | 1,557 |  |  | $ | 705 |  |  | $ | (58) |  |  | $ | 2,204 |
Depreciation and amortization | 3,951 |  |  | 256 |  |  | 168 |  |  | 4,375 |  |  | 178 |  |  | (5) |  |  | 4,548 |
Equity in earnings (losses) of unconsolidated affiliates | 9 |  |  | 114 |  |  | (4) |  |  | 119 |  |  | 43 |  |  | — |  |  | 162 |
Income tax expense (benefit) | 785 |  |  | 22 |  |  | (115) |  |  | 692 |  |  | (173) |  |  | — |  |  | 519 |
Segment income (loss)(a)(b) | 3,536 |  |  | 432 |  |  | 198 |  |  | 4,166 |  |  | (452) |  |  | — |  |  | 3,714 |
Less noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  | 177 |
Add back preferred stock dividend |  |  |  |  |  |  |  |  |  |  |  |  | 41 |
Loss from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  |  |  |  | (7) |
Net income |  |  |  |  |  |  |  |  |  |  |  |  | $ | 3,571 |
Capital investments expenditures and acquisitions | $ | 8,263 |  |  | $ | 1,539 |  |  | $ | 1,423 |  |  | $ | 11,225 |  |  | $ | 221 |  |  | $ | — |  |  | $ | 11,446 |
Segment assets | 135,561 |  |  | 13,921 |  |  | 6,020 |  |  | 155,502 |  |  | 3,148 |  |  | 188 |  |  | 158,838 |
(a) Electric Utilities and Infrastructure includes a $27 million reduction of a prior year impairment at Citrus County CC related to the plant's cost cap. (b) Gas Utilities and Infrastructure includes an after-tax impairment charge of $19 million for the remaining investment in Constitution. See Note 12 for additional information.
Schedule of Revenue, By Products and Services | Products and Services The following table summarizes revenues of the reportable segments by type.
| Retail |  | Wholesale |  | Retail |  |  |  |  |  | Total
(in millions) | Electric |  | Electric |  | Natural Gas |  |  |  | Other |  | Revenues
2021 |  |  |  |  |  |  |  |  |  |  |
Electric Utilities and Infrastructure | $ | 19,410 |  |  | $ | 2,216 |  |  | $ | — |  |  |  |  | $ | 977 |  |  | $ | 22,603 |
Gas Utilities and Infrastructure | — |  |  | — |  |  | 2,025 |  |  |  |  | 87 |  |  | 2,112 |
Commercial Renewables | — |  |  | 411 |  |  | — |  |  |  |  | 65 |  |  | 476 |
Total Reportable Segments | $ | 19,410 |  |  | $ | 2,627 |  |  | $ | 2,025 |  |  |  |  | $ | 1,129 |  |  | $ | 25,191 |
2020 |  |  |  |  |  |  |  |  |  |  |
Electric Utilities and Infrastructure | $ | 18,898 |  |  | $ | 1,878 |  |  | $ | — |  |  |  |  | $ | 944 |  |  | $ | 21,720 |
Gas Utilities and Infrastructure | — |  |  | — |  |  | 1,691 |  |  |  |  | 57 |  |  | 1,748 |
Commercial Renewables | — |  |  | 434 |  |  | — |  |  |  |  | 68 |  |  | 502 |
Total Reportable Segments | $ | 18,898 |  |  | $ | 2,312 |  |  | $ | 1,691 |  |  |  |  | $ | 1,069 |  |  | $ | 23,970 |
2019 |  |  |  |  |  |  |  |  |  |  |
Electric Utilities and Infrastructure | $ | 19,745 |  |  | $ | 2,231 |  |  | $ | — |  |  |  |  | $ | 855 |  |  | $ | 22,831 |
Gas Utilities and Infrastructure | — |  |  | — |  |  | 1,782 |  |  |  |  | 84 |  |  | 1,866 |
Commercial Renewables | — |  |  | 389 |  |  | — |  |  |  |  | 98 |  |  | 487 |
Total Reportable Segments | $ | 19,745 |  |  | $ | 2,620 |  |  | $ | 1,782 |  |  |  |  | $ | 1,037 |  |  | $ | 25,184 |
Duke Energy Ohio |
Segment Reporting Information [Line Items] |
Business Segment Data |
| Year Ended December 31, 2021
| Electric |  | Gas |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Segments |  | Other |  | Eliminations |  | Total
Total revenues | $ | 1,493 |  |  | $ | 544 |  |  | $ | 2,037 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,037 |
Interest expense | $ | 87 |  |  | $ | 24 |  |  | $ | 111 |  |  | $ | — |  |  | $ | — |  |  | $ | 111 |
Depreciation and amortization | 217 |  |  | 90 |  |  | 307 |  |  | — |  |  | — |  |  | 307 |
Income tax expense (benefit) | 15 |  |  | 19 |  |  | 34 |  |  | (4) |  |  | — |  |  | 30 |
Segment income (loss)/Net income | 141 |  |  | 78 |  |  | 219 |  |  | (15) |  |  | — |  |  | 204 |
Capital expenditures | $ | 486 |  |  | $ | 362 |  |  | $ | 848 |  |  | $ | — |  |  | $ | — |  |  | $ | 848 |
Segment assets | 6,882 |  |  | 3,892 |  |  | 10,774 |  |  | 29 |  |  | (29) |  |  | 10,774 |
| Year Ended December 31, 2020
| Electric |  | Gas |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Segments |  | Other |  | Eliminations |  | Total
Total revenues | $ | 1,405 |  |  | $ | 453 |  |  | $ | 1,858 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,858 |
Interest expense | $ | 85 |  |  | $ | 17 |  |  | $ | 102 |  |  | $ | — |  |  | $ | — |  |  | $ | 102 |
Depreciation and amortization | 200 |  |  | 78 |  |  | 278 |  |  | — |  |  | — |  |  | 278 |
Income tax expense (benefit) | 19 |  |  | 26 |  |  | 45 |  |  | (2) |  |  | — |  |  | 43 |
Segment income (loss)/Net Income | 162 |  |  | 96 |  |  | 258 |  |  | (6) |  |  | — |  |  | 252 |
Capital expenditures | $ | 548 |  |  | $ | 286 |  |  | $ | 834 |  |  | $ | — |  |  | $ | — |  |  | $ | 834 |
Segment assets | 6,615 |  |  | 3,380 |  |  | 9,995 |  |  | 32 |  |  | (2) |  |  | 10,025 |
| Year Ended December 31, 2019
| Electric |  | Gas |  | Total |  |  |  |  |  |
| Utilities and |  | Utilities and |  | Reportable |  |  |  |  |  |
(in millions) | Infrastructure |  | Infrastructure |  | Segments |  | Other |  | Eliminations |  | Total
Total revenues | $ | 1,456 |  |  | $ | 484 |  |  | $ | 1,940 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,940 |
Interest expense | $ | 80 |  |  | $ | 29 |  |  | $ | 109 |  |  | $ | — |  |  | $ | — |  |  | $ | 109 |
Depreciation and amortization | 182 |  |  | 83 |  |  | 265 |  |  | — |  |  | — |  |  | 265 |
Income tax expense (benefit) | 20 |  |  | 21 |  |  | 41 |  |  | (1) |  |  | — |  |  | 40 |
Segment income (loss) | 159 |  |  | 85 |  |  | 244 |  |  | (5) |  |  | — |  |  | 239 |
Loss from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  |  | (1) |
Net income |  |  |  |  |  |  |  |  |  |  | $ | 238 |
Capital expenditures | $ | 680 |  |  | $ | 272 |  |  | $ | 952 |  |  | $ | — |  |  | $ | — |  |  | $ | 952 |
Segment assets | 6,188 |  |  | 3,116 |  |  | 9,304 |  |  | 34 |  |  | — |  |  | 9,338 |

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- 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 -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 + Details
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