XML 232 R178.htm IDEA: XBRL DOCUMENT
v3.25.4

Revenue (Disaggregation of Revenue) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | $ 31,741 | $ 30,050 | $ 28,674
Other revenue sources | 496 | 307 | 386
Total operating revenues | 32,237 | 30,357 | 29,060
Electric Utilities and Infrastructure |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 28,863 | 27,769 | 26,546
Total operating revenues | 29,297 | 28,020 | 26,846
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 13,756 | 12,901 | 12,098
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 8,337 | 8,207 | 7,895
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 3,423 | 3,427 | 3,416
Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 2,402 | 2,205 | 2,175
Electric Utilities and Infrastructure | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 945 | 1,029 | 962
Gas Utilities and Infrastructure |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 2,850 | 2,243 | 2,091
Total operating revenues | 2,912 | 2,299 | 2,177
Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 1,596 | 1,320 | 1,226
Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 808 | 639 | 605
Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 190 | 158 | 141
Gas Utilities and Infrastructure | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 256 | 126 | 119
Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 28 | 38 | 37
Duke Energy Carolinas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 9,501 | 9,615 | 8,223
Other revenue sources | 212 | 103 | 65
Total operating revenues | 9,713 | 9,718 | 8,288
Duke Energy Carolinas | Electric Utilities and Infrastructure |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 9,501 | 9,615 | 8,223
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 4,124 | 4,150 | 3,409
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 2,885 | 3,080 | 2,670
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 1,422 | 1,488 | 1,334
Duke Energy Carolinas | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 621 | 547 | 492
Duke Energy Carolinas | Electric Utilities and Infrastructure | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 449 | 350 | 318
Progress Energy |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 14,302 | 13,464 | 13,355
Other revenue sources | 207 | 169 | 189
Total operating revenues | 14,509 | 13,633 | 13,544
Progress Energy | Electric Utilities and Infrastructure |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 14,302 | 13,464 | 13,355
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 7,067 | 6,592 | 6,510
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 3,825 | 3,718 | 3,762
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 1,065 | 1,066 | 1,105
Progress Energy | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 1,475 | 1,414 | 1,388
Progress Energy | Electric Utilities and Infrastructure | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 870 | 674 | 590
Duke Energy Progress |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 7,312 | 6,979 | 6,426
Other revenue sources | 74 | 38 | 62
Total operating revenues | 7,386 | 7,017 | 6,488
Duke Energy Progress | Electric Utilities and Infrastructure |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 7,312 | 6,979 | 6,426
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 2,965 | 2,872 | 2,540
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 1,732 | 1,754 | 1,588
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 750 | 742 | 733
Duke Energy Progress | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 1,353 | 1,268 | 1,240
Duke Energy Progress | Electric Utilities and Infrastructure | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 512 | 343 | 325
Duke Energy Florida |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 6,990 | 6,485 | 6,929
Other revenue sources | 115 | 110 | 107
Total operating revenues | 7,105 | 6,595 | 7,036
Duke Energy Florida | Electric Utilities and Infrastructure |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 6,990 | 6,485 | 6,929
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 4,102 | 3,720 | 3,970
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 2,093 | 1,964 | 2,174
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 315 | 324 | 372
Duke Energy Florida | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 122 | 146 | 148
Duke Energy Florida | Electric Utilities and Infrastructure | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 358 | 331 | 265
Duke Energy Ohio |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 2,767 | 2,527 | 2,468
Other revenue sources | 30 | 18 | 39
Total operating revenues | 2,797 | 2,545 | 2,507
Duke Energy Ohio | Electric Utilities and Infrastructure |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 2,021 | 1,888 | 1,829
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 1,116 | 1,009 | 947
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 603 | 590 | 552
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 142 | 149 | 191
Duke Energy Ohio | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 92 | 51 | 46
Duke Energy Ohio | Electric Utilities and Infrastructure | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 68 | 89 | 93
Duke Energy Ohio | Gas Utilities and Infrastructure |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 746 | 639 | 639
Duke Energy Ohio | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 496 | 427 | 435
Duke Energy Ohio | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 181 | 153 | 154
Duke Energy Ohio | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 44 | 33 | 26
Duke Energy Ohio | Gas Utilities and Infrastructure | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 25 | 26 | 24
Duke Energy Indiana |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 3,511 | 2,992 | 3,335
Other revenue sources | 33 | 48 | 64
Total operating revenues | 3,544 | 3,040 | 3,399
Duke Energy Indiana | Electric Utilities and Infrastructure |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 3,511 | 2,992 | 3,335
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 1,450 | 1,149 | 1,233
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 1,024 | 818 | 911
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 794 | 724 | 786
Duke Energy Indiana | Electric Utilities and Infrastructure | Electric Utilities and Infrastructure | Wholesale |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 218 | 194 | 248
Duke Energy Indiana | Electric Utilities and Infrastructure | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 25 | 107 | 157
Piedmont |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 2,162 | 1,637 | 1,483
Other revenue sources | 75 | 92 | 145
Total operating revenues | 2,237 | 1,729 | 1,628
Piedmont | Gas Utilities and Infrastructure |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 2,162 | 1,637 | 1,483
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 1,100 | 893 | 792
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 627 | 486 | 450
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 146 | 125 | 115
Piedmont | Gas Utilities and Infrastructure | Gas Utilities and Infrastructure | Power Generation |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 34 | 33 | 31
Piedmont | Gas Utilities and Infrastructure | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | $ 255 | $ 100 | $ 95

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 8: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 9: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total amount of operating revenues recognized during the period. + References No definition available. + Details
Name: | us-gaap_RegulatedAndUnregulatedOperatingRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-7 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 6: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 7: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 924 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479941/924-10-S99-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-40 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-4 + Details
Name: | us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenue that is not accounted for under Topic 606. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_RevenueNotFromContractWithCustomer
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=duk_ElectricUtilitiesandInfrastructureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_ElectricityUsRegulatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=duk_ResidentialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=duk_CommercialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=duk_IndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=duk_WholesaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=duk_OtherRevenuesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=duk_GasUtilitiesandInfrastructureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_NaturalGasUsRegulatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_AllOtherSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyCarolinasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_ProgressEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyProgressMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyFloridaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyOhioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyIndianaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_PiedmontNaturalGasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=duk_PowerGenerationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |