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Debt and Credit Facilities (Summary of Current Maturities of Long-term Debt) (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | $ 4,349 | $ 2,800
Duke Energy Florida |  |  |
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | 534 | 589
Duke Energy Ohio |  |  |
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | 245 | 0
Piedmont |  |  |
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | 205 | 40
Duke Energy Carolinas |  |  |
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | 521 | 19
Duke Energy Carolinas | Maturities Due January 2025 | Subsequent Event |  |  |
Debt Instrument [Line Items] |  |  |
Repayments of debt | $ 500 |  |
Duke Energy Progress |  |  |
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | $ 983 | $ 72
Unsecured Debt | Parent | Debt Maturing April 2025, 3.364% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 3.364% |
Current maturities of long-term debt |  | $ 420 |
Unsecured Debt | Parent | Debt Maturing April 2025, 3.950% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 3.95% |
Current maturities of long-term debt |  | $ 250 |
Unsecured Debt | Parent | Debt Maturing September 2025, 0.900% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 0.90% |
Current maturities of long-term debt |  | $ 650 |
Unsecured Debt | Parent | Debt Maturing December 2025, 5.000% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 5.00% |
Current maturities of long-term debt |  | $ 500 |
Unsecured Debt | Duke Energy Florida | Debt Maturing October 2025, 5.303% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 5.303% |
Current maturities of long-term debt |  | $ 100 |
Unsecured Debt | Duke Energy Ohio | Debt Maturing June 2025, 6.900% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 6.90% |
Current maturities of long-term debt |  | $ 150 |
Unsecured Debt | Duke Energy Ohio | Debt Maturing October 2025, 3.230% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 3.23% |
Current maturities of long-term debt |  | $ 95 |
Unsecured Debt | Piedmont | Debt Maturing September 2025, 3.600% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 3.60% |
Current maturities of long-term debt |  | $ 150 |
Secured Debt | Duke Energy Carolinas | Debt Maturing January 2025, 5.378% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 5.378% |
Current maturities of long-term debt |  | $ 305 |
Secured Debt | Duke Energy Carolinas | Debt Maturing January 2025, 5.423% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 5.423% |
Current maturities of long-term debt |  | $ 195 |
Secured Debt | Duke Energy Progress | Debt Maturing April 2025, 5.456% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 5.456% |
Current maturities of long-term debt |  | $ 240 |
Secured Debt | Duke Energy Progress | Debt Maturing April 2025, 5.467% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 5.467% |
Current maturities of long-term debt |  | $ 160 |
First Mortgage Bonds | Duke Energy Florida | Debt Maturing October 2073, 4.910% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 4.91% |
Current maturities of long-term debt |  | $ 200 |
First Mortgage Bonds | Duke Energy Florida | Debt Maturing April 2074, 4.910% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 4.91% |
Current maturities of long-term debt |  | $ 173 |
First Mortgage Bonds | Duke Energy Progress | Debt Maturing August 2025, 3.250% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate (as a percent) |  | 3.25% |
Current maturities of long-term debt |  | $ 500 |
Other |  |  |
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | $ 261 |
First Mortgage Bonds | Duke Energy Florida | Debt Maturing October 2073, 4.910% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Term (in years) |  | 12 months |
First Mortgage Bonds | Duke Energy Florida | Debt Maturing April 2074, 4.910% Coupon |  |  |
Debt Instrument [Line Items] |  |  |
Term (in years) |  | 12 months |

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