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Revenue (Disaggregation of Revenue) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | $ 6,473 | $ 6,529 | $ 13,574 | $ 13,520
Revenue from sources other than contracts with customers | 105 | 35 | 280 | 55
Total operating revenues | 6,578 | 6,564 | 13,854 | 13,575
Electric Utilities and Infrastructure |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 6,130 | 6,097 | 12,397 | 12,068
Total operating revenues | 6,232 | 6,126 | 12,613 | 12,121
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 2,740 | 2,625 | 5,591 | 5,392
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 1,876 | 1,817 | 3,707 | 3,421
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 827 | 824 | 1,718 | 1,596
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 498 | 629 | 1,048 | 1,255
Electric Utilities and Infrastructure | Other revenues |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 189 | 202 | 333 | 404
Gas Utilities and Infrastructure |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 334 | 424 | 1,161 | 1,437
Total operating revenues | 337 | 430 | 1,225 | 1,439
Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 179 | 197 | 686 | 769
Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Commercial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 100 | 127 | 333 | 396
Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 30 | 34 | 77 | 91
Gas Utilities and Infrastructure | Other revenues |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 25 | 66 | 65 | 181
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  |  | 16 |
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 9 | 8 |  | 15
Duke Energy Carolinas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 1,817 | 1,793 | 3,738 | 3,668
Revenue from sources other than contracts with customers | 11 | (12) | 24 | 1
Total operating revenues | 1,828 | 1,781 | 3,762 | 3,669
Duke Energy Carolinas | Electric Utilities and Infrastructure |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 1,817 | 1,793 | 3,738 | 3,668
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 715 | 736 | 1,539 | 1,567
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 607 | 566 | 1,195 | 1,110
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 320 | 296 | 616 | 572
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 126 | 103 | 261 | 216
Duke Energy Carolinas | Electric Utilities and Infrastructure | Other revenues |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 49 | 92 | 127 | 203
Progress Energy |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 3,181 | 3,199 | 6,184 | 6,185
Revenue from sources other than contracts with customers | 31 | 15 | 76 | 21
Total operating revenues | 3,212 | 3,214 | 6,260 | 6,206
Progress Energy | Electric Utilities and Infrastructure |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 3,181 | 3,199 | 6,184 | 6,185
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 1,555 | 1,400 | 2,976 | 2,768
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 914 | 889 | 1,755 | 1,615
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 274 | 274 | 546 | 544
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 294 | 389 | 642 | 800
Progress Energy | Electric Utilities and Infrastructure | Other revenues |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 144 | 247 | 265 | 458
Duke Energy Progress |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 1,417 | 1,575 | 2,946 | 3,206
Revenue from sources other than contracts with customers | 8 | 6 | 12 | 7
Total operating revenues | 1,425 | 1,581 | 2,958 | 3,213
Duke Energy Progress | Electric Utilities and Infrastructure |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 1,417 | 1,575 | 2,946 | 3,206
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 539 | 530 | 1,146 | 1,154
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 369 | 370 | 727 | 695
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 180 | 184 | 357 | 378
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 259 | 281 | 578 | 630
Duke Energy Progress | Electric Utilities and Infrastructure | Other revenues |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 70 | 210 | 138 | 349
Duke Energy Florida |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 1,764 | 1,624 | 3,238 | 2,979
Revenue from sources other than contracts with customers | 18 | 4 | 54 | 4
Total operating revenues | 1,782 | 1,628 | 3,292 | 2,983
Duke Energy Florida | Electric Utilities and Infrastructure |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 1,764 | 1,624 | 3,238 | 2,979
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 1,016 | 870 | 1,830 | 1,614
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 545 | 519 | 1,028 | 920
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 94 | 90 | 189 | 166
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 35 | 108 | 64 | 170
Duke Energy Florida | Electric Utilities and Infrastructure | Other revenues |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 74 | 37 | 127 | 109
Duke Energy Ohio |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 563 | 539 | 1,274 | 1,171
Revenue from sources other than contracts with customers | 26 | 6 | 24 | 12
Total operating revenues | 589 | 545 | 1,298 | 1,183
Duke Energy Ohio | Electric Utilities and Infrastructure |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 439 | 395 | 915 | 801
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 208 | 196 | 442 | 407
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 141 | 111 | 276 | 227
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 56 | 33 | 127 | 68
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 12 | 35 | 21 | 58
Duke Energy Ohio | Electric Utilities and Infrastructure | Other revenues |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 22 | 20 | 49 | 41
Duke Energy Ohio | Gas Utilities and Infrastructure |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 124 | 144 | 359 | 370
Duke Energy Ohio | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 82 | 94 | 244 | 243
Duke Energy Ohio | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Commercial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 31 | 38 | 89 | 102
Duke Energy Ohio | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 6 | 6 | 15 | 13
Duke Energy Ohio | Gas Utilities and Infrastructure | Other revenues |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 5 | 6 | 11 | 12
Duke Energy Indiana |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 749 | 892 | 1,715 | 1,699
Revenue from sources other than contracts with customers | 31 | 26 | 40 | 41
Total operating revenues | 780 | 918 | 1,755 | 1,740
Duke Energy Indiana | Electric Utilities and Infrastructure |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 749 | 892 | 1,715 | 1,699
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 262 | 296 | 634 | 650
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | General |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 212 | 251 | 482 | 469
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 177 | 220 | 428 | 412
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 66 | 102 | 124 | 181
Duke Energy Indiana | Electric Utilities and Infrastructure | Other revenues |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 32 | 23 | 47 | (13)
Piedmont |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 218 | 288 | 817 | 1,082
Revenue from sources other than contracts with customers | 18 | 22 | 94 | 33
Total operating revenues | 236 | 310 | 911 | 1,115
Piedmont | Gas Utilities and Infrastructure |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 218 | 288 | 817 | 1,082
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 97 | 103 | 442 | 526
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Commercial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 69 | 90 | 244 | 294
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 24 | 28 | 61 | 78
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Power Generation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 23 | 23 | 46 | 47
Piedmont | Gas Utilities and Infrastructure | Other revenues |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | $ 5 | $ 44 | $ 24 | $ 137

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