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v3.25.1

Debt and Credit Facilities (Summary of Current Maturities of Long-term Debt) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
Debt Instrument [Line Items] |  |
Current maturities of long-term debt | $ 4,180 | $ 4,349
Other debt securities |  |
Debt Instrument [Line Items] |  |
Current maturities of long-term debt | $ 292 |
Duke Energy (Parent) | Debt Maturing April 2025, 3.364% Coupon | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 3.364% |
Current maturities of long-term debt | $ 420 |
Duke Energy (Parent) | Debt Maturing April 2025, 3.950% Coupon | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 3.95% |
Current maturities of long-term debt | $ 250 |
Duke Energy (Parent) | Debt Maturing September 2025, 0.900% Coupon | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 0.90% |
Current maturities of long-term debt | $ 650 |
Duke Energy (Parent) | Debt Maturing December 2025, 5.000% Coupon | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 5.00% |
Current maturities of long-term debt | $ 500 |
Duke Energy Ohio |  |
Debt Instrument [Line Items] |  |
Current maturities of long-term debt | $ 290 | 245
Duke Energy Ohio | Debt Maturing June 2025, 6.900% Coupon | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 6.90% |
Current maturities of long-term debt | $ 150 |
Duke Energy Ohio | Debt Maturing October 2025, 3.230% Coupon | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 3.23% |
Current maturities of long-term debt | $ 95 |
Piedmont |  |
Debt Instrument [Line Items] |  |
Current maturities of long-term debt | $ 205 | 205
Piedmont | Debt Maturing September 2025, 3.600% Coupon | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 3.60% |
Current maturities of long-term debt | $ 150 |
Duke Energy Carolinas |  |
Debt Instrument [Line Items] |  |
Current maturities of long-term debt | 23 | 521
Duke Energy Progress |  |
Debt Instrument [Line Items] |  |
Current maturities of long-term debt | $ 581 | 983
Duke Energy Progress | 3.250% Notes Due August 2025 | First Mortgage Bonds |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 3.25% |
Current maturities of long-term debt | $ 500 |
Duke Energy Florida |  |
Debt Instrument [Line Items] |  |
Current maturities of long-term debt | $ 1,235 | $ 534
Duke Energy Florida | Debt Maturing October 2025, 5.303% Coupon | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 5.068% |
Current maturities of long-term debt | $ 800 |
Duke Energy Florida | 4.998% Notes Due October 2073 | First Mortgage Bonds |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 4.282% |
Current maturities of long-term debt | $ 200 |
Duke Energy Florida | 4.970% Notes Due April 2074 | First Mortgage Bonds |  |
Debt Instrument [Line Items] |  |
Interest rate (as a percent) | 4.282% |
Current maturities of long-term debt | $ 173 |
Duke Energy Florida | 4.998% Notes Due October 2073 And 4.970% Notes Due April 2074 | First Mortgage Bonds |  |
Debt Instrument [Line Items] |  |
Facility term (in years) | 12 months |

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