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Revenue (Disaggregation of Revenue) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | $ 7,042 | $ 6,094
Revenue from sources other than contracts with customers | 90 | 56
Total operating revenues | 7,132 | 6,150
Electric Utilities and Infrastructure |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 5,971 | 5,273
Total operating revenues | 5,995 | 5,273
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 2,767 | 2,462
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,604 | 1,419
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 772 | 662
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 626 | 504
Electric Utilities and Infrastructure | Other revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 202 | 226
Gas Utilities and Infrastructure |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,013 | 761
Total operating revenues | 1,009 | 752
Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Residential |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 572 | 460
Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Commercial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 269 | 204
Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Industrial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 57 | 50
Gas Utilities and Infrastructure | Other revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 115 | 47
Commercial Renewables |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 51 | 54
Total operating revenues | 121 | 119
Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 7 | 6
Total operating revenues | 7 | 6
Duke Energy Carolinas |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,875 | 1,739
Revenue from sources other than contracts with customers | 13 | (23)
Total operating revenues | 1,888 | 1,716
Duke Energy Carolinas | Electric Utilities and Infrastructure |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,875 | 1,739
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 831 | 793
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 544 | 502
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 276 | 256
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 113 | 114
Duke Energy Carolinas | Electric Utilities and Infrastructure | Other revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 111 | 74
Progress Energy |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 2,986 | 2,479
Revenue from sources other than contracts with customers | 6 | 26
Total operating revenues | 2,992 | 2,505
Progress Energy | Electric Utilities and Infrastructure |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 2,986 | 2,479
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,368 | 1,162
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 726 | 624
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 270 | 207
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 411 | 326
Progress Energy | Electric Utilities and Infrastructure | Other revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 211 | 160
Duke Energy Progress |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,631 | 1,386
Revenue from sources other than contracts with customers | 1 | 15
Total operating revenues | 1,632 | 1,401
Duke Energy Progress | Electric Utilities and Infrastructure |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,631 | 1,386
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 624 | 560
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 325 | 306
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 194 | 145
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 349 | 292
Duke Energy Progress | Electric Utilities and Infrastructure | Other revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 139 | 83
Duke Energy Florida |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,355 | 1,093
Revenue from sources other than contracts with customers |  | 8
Total operating revenues | 1,355 | 1,101
Duke Energy Florida | Electric Utilities and Infrastructure |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,355 | 1,093
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 744 | 602
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 401 | 318
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 76 | 62
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 62 | 34
Duke Energy Florida | Electric Utilities and Infrastructure | Other revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 72 | 77
Duke Energy Ohio |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 632 | 535
Revenue from sources other than contracts with customers | 6 | (3)
Total operating revenues | 638 | 532
Duke Energy Ohio | Electric Utilities and Infrastructure |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 406 | 365
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 211 | 195
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 116 | 104
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 35 | 31
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 23 | 13
Duke Energy Ohio | Electric Utilities and Infrastructure | Other revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 21 | 22
Duke Energy Ohio | Gas Utilities and Infrastructure |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 226 | 170
Duke Energy Ohio | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Residential |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 149 | 110
Duke Energy Ohio | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Commercial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 64 | 48
Duke Energy Ohio | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Industrial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 7 | 7
Duke Energy Ohio | Gas Utilities and Infrastructure | Other revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 6 | 5
Duke Energy Indiana |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 807 | 737
Revenue from sources other than contracts with customers | 15 | 8
Total operating revenues | 822 | 745
Duke Energy Indiana | Electric Utilities and Infrastructure |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 807 | 737
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 354 | 313
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 218 | 189
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 192 | 167
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 79 | 50
Duke Energy Indiana | Electric Utilities and Infrastructure | Other revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | (36) | 18
Piedmont |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 794 | 598
Revenue from sources other than contracts with customers | 11 | 8
Total operating revenues | 805 | 606
Piedmont | Gas Utilities and Infrastructure |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 794 | 598
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Residential |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 423 | 351
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Commercial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 204 | 156
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Industrial |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 50 | 43
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Power Generation |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 24 | 22
Piedmont | Gas Utilities and Infrastructure | Other revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | $ 93 | $ 26

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