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v3.24.1.u1

Debt and Credit Facilities (Narrative) (Details) € in Millions |  |  | 1 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Apr. 24, 2024 USD ($) | Mar. 26, 2024 USD ($) | Apr. 30, 2024 USD ($) | Apr. 30, 2023 | Apr. 30, 2024 EUR (€) | Apr. 25, 2024 USD ($) | Mar. 31, 2024 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale of debt |  |  |  |  |  |  | $ 3,475,000,000
Master Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Facility size |  |  |  |  |  |  | 9,000,000,000
Duke Energy (Parent) |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale of debt |  |  |  |  |  |  | 1,250,000,000
Duke Energy (Parent) | 4.25% Convertible Senior notes Due April 2026 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Conversion ratio |  |  |  | 0.0084131 |  |  |
Duke Energy Florida | Master Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Facility size |  |  |  |  |  |  | 950,000,000
Duke Energy Progress |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale of debt |  |  |  |  |  |  | 500,000,000
Duke Energy Progress | Master Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Facility size |  |  |  |  |  |  | $ 1,575,000,000
Term Loan Facility | Duke Energy (Parent) | Duke Energy Term Loan Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Facility size |  | $ 700,000,000 |  |  |  |  |
Extension period (in years) |  | 30 days |  |  |  |  |
Facility term (in years) |  | 364 days |  |  |  |  |
Term Loan Facility | Duke Energy (Parent) | Duke Energy Term Loan Facility | Subsequent event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Borrowing amount | $ 500,000,000 |  |  |  |  |  |
Unsecured Debt | Senior Notes 3.75% Due 2031 | Subsequent event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale of debt |  |  | $ 815,000,000 |  | € 750 |  |
Interest rate (as a percent) |  |  | 3.75% |  | 3.75% |  |
Unsecured Debt | Duke Energy (Parent) | Senior Notes 3.75% Due 2031 | Subsequent event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale of debt | € |  |  |  |  | € 750 |  |
Secured Debt | Variable Rate Term Loan Due March 2024 | Subsequent event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayment of debt |  |  | $ 1,000,000,000 |  |  |  |
First Mortgage Bonds | Duke Energy Florida | First Mortgage Bonds due April 2074 | Subsequent event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale of debt |  |  | $ 173,000,000 |  |  |  |
Facility term (in years) |  |  | 12 months |  |  |  |
First Mortgage Bonds | Duke Energy Florida | First Mortgage Bonds due April 2074 | Subsequent event | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 0.35% |  |  |  |
Storm Recovery Bonds | Duke Energy Progress | Subsequent event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale of debt |  |  |  |  |  | $ 177,000,000 |
Storm Recovery Bonds | Duke Energy Progress | 5.404% Storm Recovery Bonds | Subsequent event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Sale of debt |  |  | $ 177,000,000 |  |  |  |
Interest rate (as a percent) |  |  | 5.404% |  | 5.404% |  |

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