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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2022
Revenue from Contract with Customer [Abstract] |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction | Supplemental requirements contracts that include contracted blocks of energy and capacity at contractually fixed prices have the following estimated remaining performance obligations:
| Remaining Performance Obligations
(in millions) | 2023 | 2024 | 2025 | 2026 | 2027 | Thereafter | Total
Progress Energy | $ | 61 |  | $ | 66 |  | $ | 7 |  | $ | 7 |  | $ | 7 |  | $ | 36 |  | $ | 184 |
Duke Energy Progress | 8 |  | 8 |  | — |  | — |  | — |  | — |  | 16 |
Duke Energy Florida | 53 |  | 58 |  | 7 |  | 7 |  | 7 |  | 36 |  | 168 |
Duke Energy Indiana | 11 |  | 16 |  | 17 |  | 15 |  | 7 |  | 5 |  | 71 |
Estimated remaining performance obligations are as follows:
| Remaining Performance Obligations
(in millions) | 2023 | 2024 | 2025 | 2026 | 2027 | Thereafter | Total
Piedmont | $ | 68 |  | $ | 62 |  | $ | 61 |  | $ | 51 |  | $ | 49 |  | $ | 241 |  | $ | 532 |
Disaggregation of Revenue | Disaggregated revenues are presented as follows:
| Year Ended December 31, 2022
|  | Duke |  | Duke | Duke | Duke | Duke |
(in millions) | Duke | Energy | Progress | Energy | Energy | Energy | Energy |
By market or type of customer | Energy | Carolinas | Energy | Progress | Florida | Ohio | Indiana | Piedmont
Electric Utilities and Infrastructure |  |  |  |  |  |  |  |
Residential | $ | 11,377 |  | $ | 3,275 |  | $ | 5,812 |  | $ | 2,378 |  | $ | 3,434 |  | $ | 862 |  | $ | 1,430 |  | $ | — |
General | 7,356 |  | 2,396 |  | 3,396 |  | 1,480 |  | 1,916 |  | 517 |  | 1,049 |  | — |
Industrial | 3,504 |  | 1,251 |  | 1,095 |  | 770 |  | 325 |  | 202 |  | 956 |  | — |
Wholesale | 2,856 |  | 561 |  | 1,785 |  | 1,346 |  | 439 |  | 127 |  | 383 |  | — |
Other revenues | 795 |  | 372 |  | 994 |  | 768 |  | 226 |  | 61 |  | 19 |  | — |
Total Electric Utilities and Infrastructure revenue from contracts with customers | $ | 25,888 |  | $ | 7,855 |  | $ | 13,082 |  | $ | 6,742 |  | $ | 6,340 |  | $ | 1,769 |  | $ | 3,837 |  | $ | — |
Gas Utilities and Infrastructure |  |  |  |  |  |  |  |
Residential | $ | 1,462 |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | 488 |  | $ | — |  | $ | 974 |
Commercial | 765 |  | — |  | — |  | — |  | — |  | 180 |  | — |  | 585 |
Industrial | 170 |  | — |  | — |  | — |  | — |  | 24 |  | — |  | 144 |
Power Generation | — |  | — |  | — |  | — |  | — |  | — |  | — |  | 94 |
Other revenues | 360 |  | — |  | — |  | — |  | — |  | 25 |  | — |  | 271 |
Total Gas Utilities and Infrastructure revenue from contracts with customers | $ | 2,757 |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | 717 |  | $ | — |  | $ | 2,068 |
Other |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 30 |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |
Total revenue from contracts with customers | $ | 28,675 |  | $ | 7,855 |  | $ | 13,082 |  | $ | 6,742 |  | $ | 6,340 |  | $ | 2,486 |  | $ | 3,837 |  | $ | 2,068 |
Other revenue sources(a) | $ | 93 |  | $ | 2 |  | $ | 43 |  | $ | 11 |  | $ | 13 |  | $ | 28 |  | $ | 85 |  | $ | 56 |
Total revenues | $ | 28,768 |  | $ | 7,857 |  | $ | 13,125 |  | $ | 6,753 |  | $ | 6,353 |  | $ | 2,514 |  | $ | 3,922 |  | $ | 2,124 |
(a) Other revenue sources include revenues from leases, derivatives and alternative revenue programs that are not considered revenues from contracts with customers. Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over or under collection of related revenues.
| Year Ended December 31, 2021
|  | Duke |  | Duke | Duke | Duke | Duke |
(in millions) | Duke | Energy | Progress | Energy | Energy | Energy | Energy |
By market or type of customer | Energy | Carolinas | Energy | Progress | Florida | Ohio | Indiana | Piedmont
Electric Utilities and Infrastructure |  |  |  |  |  |  |  |
Residential | $ | 10,097 |  | $ | 3,054 |  | $ | 5,084 |  | $ | 2,156 |  | $ | 2,928 |  | $ | 767 |  | $ | 1,188 |  | $ | — |
General | 6,375 |  | 2,210 |  | 2,883 |  | 1,378 |  | 1,505 |  | 440 |  | 825 |  | — |
Industrial | 2,924 |  | 1,145 |  | 894 |  | 634 |  | 260 |  | 135 |  | 750 |  | — |
Wholesale | 2,199 |  | 472 |  | 1,385 |  | 1,164 |  | 221 |  | 56 |  | 285 |  | — |
Other revenues | 879 |  | 264 |  | 716 |  | 387 |  | 329 |  | 83 |  | 86 |  | — |
Total Electric Utilities and Infrastructure revenue from contracts with customers | $ | 22,474 |  | $ | 7,145 |  | $ | 10,962 |  | $ | 5,719 |  | $ | 5,243 |  | $ | 1,481 |  | $ | 3,134 |  | $ | — |
Gas Utilities and Infrastructure |  |  |  |  |  |  |  |
Residential | $ | 1,131 |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | 354 |  | $ | — |  | $ | 777 |
Commercial | 561 |  | — |  | — |  | — |  | — |  | 143 |  | — |  | 418 |
Industrial | 158 |  | — |  | — |  | — |  | — |  | 20 |  | — |  | 137 |
Power Generation | — |  | — |  | — |  | — |  | — |  | — |  | — |  | 92 |
Other revenues | 133 |  | — |  | — |  | — |  | — |  | 28 |  | — |  | 45 |
Total Gas Utilities and Infrastructure revenue from contracts with customers | $ | 1,983 |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | 545 |  | $ | — |  | $ | 1,469 |
Other |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 29 |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |
Total revenue from contracts with customers | $ | 24,486 |  | $ | 7,145 |  | $ | 10,962 |  | $ | 5,719 |  | $ | 5,243 |  | $ | 2,026 |  | $ | 3,134 |  | $ | 1,469 |
Other revenue sources(a) | $ | 135 |  | $ | (43) |  | $ | 95 |  | $ | 61 |  | $ | 16 |  | $ | 11 |  | $ | 40 |  | $ | 100 |
Total revenues | $ | 24,621 |  | $ | 7,102 |  | $ | 11,057 |  | $ | 5,780 |  | $ | 5,259 |  | $ | 2,037 |  | $ | 3,174 |  | $ | 1,569 |
(a) Other revenue sources include revenues from leases, derivatives and alternative revenue programs that are not considered revenues from contracts with customers. Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over or under collection of related revenues.
| Year Ended December 31, 2020
|  | Duke |  | Duke | Duke | Duke | Duke |
(in millions) | Duke | Energy | Progress | Energy | Energy | Energy | Energy |
By market or type of customer | Energy | Carolinas | Energy | Progress | Florida | Ohio | Indiana | Piedmont
Electric Utilities and Infrastructure |  |  |  |  |  |  |  |
Residential | $ | 9,806 |  | $ | 2,997 |  | $ | 5,017 |  | $ | 2,059 |  | $ | 2,958 |  | $ | 726 |  | $ | 1,064 |  | $ | — |
General | 6,194 |  | 2,233 |  | 2,779 |  | 1,312 |  | 1,467 |  | 442 |  | 740 |  | — |
Industrial | 2,859 |  | 1,137 |  | 901 |  | 649 |  | 252 |  | 137 |  | 683 |  | — |
Wholesale | 1,864 |  | 380 |  | 1,228 |  | 1,034 |  | 194 |  | 32 |  | 224 |  | — |
Other revenues | 914 |  | 281 |  | 596 |  | 294 |  | 302 |  | 82 |  | 72 |  | — |
Total Electric Utilities and Infrastructure revenue from contracts with customers | $ | 21,637 |  | $ | 7,028 |  | $ | 10,521 |  | $ | 5,348 |  | $ | 5,173 |  | $ | 1,419 |  | $ | 2,783 |  | $ | — |
Gas Utilities and Infrastructure |  |  |  |  |  |  |  |
Residential | $ | 930 |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | 300 |  | $ | — |  | $ | 630 |
Commercial | 446 |  | — |  | — |  | — |  | — |  | 117 |  | — |  | 329 |
Industrial | 127 |  | — |  | — |  | — |  | — |  | 17 |  | — |  | 110 |
Power Generation | — |  | — |  | — |  | — |  | — |  | — |  | — |  | 34 |
Other revenues | 87 |  | — |  | — |  | — |  | — |  | 17 |  | — |  | 70 |
Total Gas Utilities and Infrastructure revenue from contracts with customers | $ | 1,590 |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | 451 |  | $ | — |  | $ | 1,173 |
Other |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 26 |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |
Total revenue from contracts with customers | $ | 23,253 |  | $ | 7,028 |  | $ | 10,521 |  | $ | 5,348 |  | $ | 5,173 |  | $ | 1,870 |  | $ | 2,783 |  | $ | 1,173 |
Other revenue sources(a) | $ | 113 |  | $ | (13) |  | $ | 106 |  | $ | 74 |  | $ | 15 |  | $ | (12) |  | $ | 12 |  | $ | 124 |
Total revenues | $ | 23,366 |  | $ | 7,015 |  | $ | 10,627 |  | $ | 5,422 |  | $ | 5,188 |  | $ | 1,858 |  | $ | 2,795 |  | $ | 1,297 |
(a) Other revenue sources include revenues from leases, derivatives and alternative revenue programs that are not considered revenues from contracts with customers. Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over or under collection of related revenues.
Accounts Receivable, Allowance for Credit Loss | The following table presents the reserve for credit losses for trade and other receivables based on adoption of the new standard.
|  | Duke |  | Duke | Duke | Duke | Duke |
| Duke | Energy | Progress | Energy | Energy | Energy | Energy |
(in millions) | Energy | Carolinas | Energy | Progress | Florida | Ohio | Indiana | Piedmont
Balance at December 31, 2019 | $ | 76 |  | $ | 10 |  | $ | 16 |  | $ | 8 |  | $ | 7 |  | $ | 4 |  | $ | 3 |  | $ | 6 |
Cumulative Change in Accounting Principle | 5 |  | 1 |  | 2 |  | 1 |  | 1 |  | — |  | — |  | 1 |
Write-Offs | (58) |  | (13) |  | (23) |  | (8) |  | (14) |  | — |  | — |  | (6) |
Credit Loss Expense | 75 |  | 13 |  | 29 |  | 9 |  | 20 |  | — |  | — |  | 11 |
Other Adjustments | 48 |  | 12 |  | 13 |  | 13 |  | — |  | — |  | — |  | — |
Balance at December 31, 2020 | $ | 146 |  | $ | 23 |  | $ | 37 |  | $ | 23 |  | $ | 14 |  | $ | 4 |  | $ | 3 |  | $ | 12 |
Write-Offs | (58) |  | (21) |  | (25) |  | (12) |  | (13) |  | — |  | — |  | (9) |
Credit Loss Expense | 53 |  | 27 |  | 25 |  | 11 |  | 14 |  | — |  | — |  | 7 |
Other Adjustments | (20) |  | 13 |  | (1) |  | (1) |  | 1 |  | — |  | — |  | 5 |
Balance at December 31, 2021 | $ | 121 |  | $ | 42 |  | $ | 36 |  | $ | 21 |  | $ | 16 |  | $ | 4 |  | $ | 3 |  | $ | 15 |
Write-Offs | (158) |  | (73) |  | (70) |  | (36) |  | (34) |  | — |  | — |  | (12) |
Credit Loss Expense | 160 |  | 40 |  | 72 |  | 17 |  | 55 |  | 2 |  | 1 |  | 11 |
Other Adjustments | 93 |  | 59 |  | 43 |  | 42 |  | (1) |  | — |  | — |  | — |
Balance at December 31, 2022 | $ | 216 |  | $ | 68 |  | $ | 81 |  | $ | 44 |  | $ | 36 |  | $ | 6 |  | $ | 4 |  | $ | 14 |
Financing Receivable, Past Due | The aging of trade receivables is presented in the table below.
| December 31, 2022
|  | Duke |  | Duke | Duke | Duke | Duke |
| Duke | Energy | Progress | Energy | Energy | Energy | Energy |
(in millions) | Energy | Carolinas | Energy | Progress | Florida | Ohio | Indiana | Piedmont
Unbilled Receivables(a)(b) | $ | 1,457 |  | $ | 486 |  | $ | 355 |  | $ | 232 |  | $ | 123 |  | $ | 20 |  | $ | 28 |  | $ | 160 |
Current | 2,347 |  | 577 |  | 1,059 |  | 637 |  | 417 |  | 15 |  | 52 |  | 265 |
1-30 days past due | 261 |  | 96 |  | 60 |  | 15 |  | 45 |  | 5 |  | 17 |  | 15 |
31-60 days past due | 123 |  | 23 |  | 61 |  | 49 |  | 12 |  | 6 |  | 2 |  | 3 |
61-90 days past due | 74 |  | 25 |  | 18 |  | 9 |  | 9 |  | 3 |  | 11 |  | 2 |
91+ days past due | 209 |  | 70 |  | 74 |  | 27 |  | 47 |  | 26 |  | 6 |  | 4 |
Deferred Payment Arrangements(c) | 160 |  | 57 |  | 62 |  | 35 |  | 27 |  | 4 |  | — |  | 1 |
Trade and Other Receivables | $ | 4,631 |  | $ | 1,334 |  | $ | 1,689 |  | $ | 1,004 |  | $ | 680 |  | $ | 79 |  | $ | 116 |  | $ | 450 |
| December 31, 2021
|  | Duke |  | Duke | Duke | Duke | Duke |
| Duke | Energy | Progress | Energy | Energy | Energy | Energy |
(in millions) | Energy | Carolinas | Energy | Progress | Florida | Ohio | Indiana | Piedmont
Unbilled Receivables(a)(b) | $ | 922 |  | $ | 316 |  | $ | 266 |  | $ | 193 |  | $ | 73 |  | $ | 4 |  | $ | 27 |  | $ | 106 |
Current | 1,941 |  | 592 |  | 716 |  | 405 |  | 311 |  | 42 |  | 50 |  | 202 |
1-30 days past due | 288 |  | 77 |  | 128 |  | 44 |  | 82 |  | 4 |  | 5 |  | 12 |
31-60 days past due | 98 |  | 30 |  | 49 |  | 21 |  | 28 |  | 1 |  | 10 |  | 2 |
61-90 days past due | 118 |  | 32 |  | 48 |  | 28 |  | 20 |  | 23 |  | 5 |  | 4 |
91+ days past due | 161 |  | 84 |  | 37 |  | 9 |  | 28 |  | 24 |  | 6 |  | 3 |
Deferred Payment Arrangements(c) | 115 |  | 55 |  | 45 |  | 22 |  | 23 |  | 2 |  | — |  | 4 |
Trade and Other Receivables | $ | 3,643 |  | $ | 1,186 |  | $ | 1,289 |  | $ | 722 |  | $ | 565 |  | $ | 100 |  | $ | 103 |  | $ | 333 |
(a) Unbilled revenues are recognized by applying customer billing rates to the estimated volumes of energy or natural gas delivered but not yet billed and are included within Receivables and Receivables of VIEs on the Consolidated Balance Sheets. (b) Duke Energy Ohio and Duke Energy Indiana sell, on a revolving basis, nearly all of their retail accounts receivable, including receivables for unbilled revenues, to an affiliate, CRC, and account for the transfers of receivables as sales. Accordingly, the receivables sold are not reflected on the Consolidated Balance Sheets of Duke Energy Ohio and Duke Energy Indiana. See Note 18 for further information. These receivables for unbilled revenues are $148 million and $260 million for Duke Energy Ohio and Duke Energy Indiana, respectively, as of December 31, 2022, and $82 million and $121 million for Duke Energy Ohio and Duke Energy Indiana, respectively, as of December 31, 2021. (c) Due to ongoing financial hardships impacting customers, Duke Energy has permitted customers to defer payment of past-due amounts through installment payment plans.

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