| Cover | Nov. 24, 2021 |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Amendment Description | Duke Energy Carolinas, LLC and Duke Energy Carolinas NC Storm Funding LLC furnished a Current Report on Form 8-K on November 24, 2021 and inadvertently attached an incorrect Exhibit 5.1 to such report. Duke Energy Carolinas, LLC and Duke Energy Carolinas NC Storm Funding LLC are furnishing this Current Report on Form 8-K/A to attach the correct Opinion of Hunton Andrews Kurth LLP with respect to legality as Exhibit 5.1. For convenience, Duke Energy Carolinas, LLC and Duke Energy Carolinas NC Storm Funding LLC are including hyperlinks to the other exhibits and repeating the text of the original report, except that references to Form 8-K have been replaced by references to this Form 8-K/A. |
| Document Period End Date | Nov. 24, 2021 |
| Entity File Number | 1-4928 |
| Entity Registrant Name | DUKE ENERGY CAROLINAS, LLC |
| Entity Central Index Key | 0000030371 |
| Entity Tax Identification Number | 56-0205520 |
| Entity Incorporation, State or Country Code | NC |
| Entity Address, Address Line One | 526 South Church Street |
| Entity Address, City or Town | Charlotte |
| Entity Address, State or Province | NC |
| Entity Address, Postal Zip Code | 28202-1803 |
| City Area Code | 704 |
| Local Phone Number | 382-3853 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Duke Energy Carolinas Nc Storm Funding [Member] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Document Period End Date | Nov. 24, 2021 |
| Entity File Number | 333-259314-01 |
| Entity Registrant Name | DUKE ENERGY CAROLINAS NC STORM FUNDING LLC |
| Entity Central Index Key | 0001881226 |
| Entity Tax Identification Number | 87-2284895 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 526 South Church Street |
| Entity Address, City or Town | Charlotte |
| Entity Address, State or Province | NC |
| Entity Address, Postal Zip Code | 28202-1803 |
| City Area Code | 704 |
| Local Phone Number | 382-3853 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
