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Organization and Basis of Presentation (Tables) | 9 Months Ended
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Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Cash Received and Allocated Losses from Subsidiaries, Noncontrolling Interest | The following table presents cash received for the sale of noncontrolling interest and allocated losses to noncontrolling interest for the three and nine months ended September 30, 2020, and 2019.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions) | 2020 |  | 2019 |  | 2020 |  | 2019
Noncontrolling Interest Capital Contributions |  |  |  |  |  |  |
Cash received for the sale of noncontrolling interest to tax equity members | $ | 239 |  |  | $ | 7 |  |  | $ | 402 |  |  | $ | 200 |
Cash received for the sale of noncontrolling interest to pro rata share members | — |  |  | — |  |  | — |  |  | 415 |
Total Noncontrolling Interest Capital Contributions | 239 |  |  | 7 |  |  | 402 |  |  | 615 |
Noncontrolling Interest Allocation of Income |  |  |  |  |  |  |
Allocated losses to noncontrolling tax equity members utilizing the HLBV method | 59 |  |  | 15 |  |  | 187 |  |  | 105 |
Allocated losses to noncontrolling members based on pro rata shares of ownership | 11 |  |  | 4 |  |  | 21 |  |  | 5 |
Total Noncontrolling Interest Allocated Losses | $ | 70 |  |  | $ | 19 |  |  | $ | 208 |  |  | $ | 110 |
Schedule of Cash, Cash Equivalents and Restricted Cash | The following table presents the components of cash, cash equivalents and restricted cash included in the Condensed Consolidated Balance Sheets.
| September 30, 2020 |  | December 31, 2019
|  |  | Duke |  |  |  |  | Duke |
| Duke |  | Progress |  | Energy |  |  | Duke |  | Progress |  | Energy |
| Energy |  | Energy |  | Florida |  |  | Energy |  | Energy |  | Florida |
Current Assets |  |  |  |  |  |  |
Cash and cash equivalents | $ | 308 |  | $ | 70 |  | $ | 19 |  |  | $ | 311 |  | $ | 48 |  | $ | 17 |
Other | 187 |  | 16 |  | 16 |  |  | 222 |  | 39 |  | 39 |
Other Noncurrent Assets |  |  |  |  |  |  |
Other | 105 |  | 102 |  | — |  |  | 40 |  | 39 |  | — |
Total cash, cash equivalents and restricted cash | $ | 600 |  | $ | 188 |  | $ | 35 |  |  | $ | 573 |  | $ | 126 |  | $ | 56 |
Schedule of Utility Inventory | The components of inventory are presented in the tables below.
| September 30, 2020
|  |  | Duke |  |  |  |  | Duke |  |  | Duke |  |  | Duke |  |  | Duke |  |  |
| Duke |  |  | Energy |  |  | Progress |  |  | Energy |  |  | Energy |  |  | Energy |  |  | Energy |  |  |
(in millions) | Energy |  |  | Carolinas |  |  | Energy |  |  | Progress |  |  | Florida |  |  | Ohio |  |  | Indiana |  |  | Piedmont |
Materials and supplies | $ | 2,341 |  |  | $ | 779 |  |  | $ | 1,021 |  |  | $ | 682 |  |  | $ | 340 |  |  | $ | 79 |  |  | $ | 314 |  |  | $ | 13 |
Coal | 546 |  |  | 173 |  |  | 168 |  |  | 120 |  |  | 48 |  |  | 12 |  |  | 192 |  |  | — |
Natural gas, oil and other fuel | 303 |  |  | 40 |  |  | 189 |  |  | 108 |  |  | 80 |  |  | 39 |  |  | 1 |  |  | 34 |
Total inventory | $ | 3,190 |  |  | $ | 992 |  |  | $ | 1,378 |  |  | $ | 910 |  |  | $ | 468 |  |  | $ | 130 |  |  | $ | 507 |  |  | $ | 47 |
| December 31, 2019
|  |  | Duke |  |  |  |  | Duke |  |  | Duke |  |  | Duke |  |  | Duke |  |  |
| Duke |  |  | Energy |  |  | Progress |  |  | Energy |  |  | Energy |  |  | Energy |  |  | Energy |  |  |
(in millions) | Energy |  |  | Carolinas |  |  | Energy |  |  | Progress |  |  | Florida |  |  | Ohio |  |  | Indiana |  |  | Piedmont |
Materials and supplies | $ | 2,297 |  |  | $ | 768 |  |  | $ | 1,038 |  |  | $ | 686 |  |  | $ | 351 |  |  | $ | 79 |  |  | $ | 318 |  |  | $ | 5 |
Coal | 586 |  |  | 187 |  |  | 186 |  |  | 138 |  |  | 48 |  |  | 15 |  |  | 198 |  |  | — |
Natural gas, oil and other fuel | 349 |  |  | 41 |  |  | 199 |  |  | 110 |  |  | 90 |  |  | 41 |  |  | 1 |  |  | 67 |
Total inventory | $ | 3,232 |  |  | $ | 996 |  |  | $ | 1,423 |  |  | $ | 934 |  |  | $ | 489 |  |  | $ | 135 |  |  | $ | 517 |  |  | $ | 72 |
Schedule of New Accounting Pronouncements | Duke Energy recorded an adjustment for the cumulative effect of a change in accounting principle due to the adoption of this standard on January 1, 2020, as shown in the table below:
| January 1, 2020
|  |  | Duke |  |  |  |  | Duke |  |  | Duke |  |  |
| Duke |  |  | Energy |  |  | Progress |  |  | Energy |  |  | Energy |  |  |
(in millions) | Energy |  |  | Carolinas |  |  | Energy |  |  | Progress |  |  | Florida |  |  | Piedmont |
Total pretax impact to Retained Earnings | $ | 120 |  |  | $ | 16 |  |  | $ | 2 |  |  | $ | 1 |  |  | $ | 1 |  |  | $ | 1 |

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- Definition A tabular presentation of the information summarizing investments in and advances to majority-owned subsidiaries, other controlled companies, and other affiliates, as prescribed by the SEC. It reflects specified information about ownership, financial results from, and financial position in such entities. Includes the tabular presentations that disaggregate investments in and advances to majority-owned subsidiaries, other controlled companies, and other affiliates. + References No definition available. + Details
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