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v3.22.2

Debt and Credit Facilities (Summary of Current Maturities of Long-term Debt) (Details) - USD ($) | 1 Months Ended |  |
--- | --- | --- | ---
May 31, 2022 | Jun. 30, 2022 | Dec. 31, 2021
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | $ 3,171,000,000 | $ 3,387,000,000
Other debt securities |  |  |
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | 821,000,000 |
Progress Energy |  |  |
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | $ 393,000,000 | 1,082,000,000
Duke Energy (Parent) | Debt Maturing August 2022, 2.400% interest rate | Unsecured Debt |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate |  | 2.40% |
Current maturities of long-term debt |  | $ 500,000,000 |
Amount of debt retired | $ 500,000,000 |  |
Duke Energy (Parent) | Debt Maturing April 2023, 2.875% Coupon | Unsecured Debt |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate |  | 2.875% |
Current maturities of long-term debt |  | $ 350,000,000 |
Duke Energy (Parent) | Debt Maturing June 2023, 1.938% Coupon | Unsecured Debt |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate |  | 1.938% |
Current maturities of long-term debt |  | $ 500,000,000 |
Duke Energy Carolinas |  |  |
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | $ 1,018,000,000 | 362,000,000
Duke Energy Carolinas | Debt Maturing March 2023, 2.500% Coupon | First Mortgage Bonds |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate |  | 2.50% |
Current maturities of long-term debt |  | $ 500,000,000 |
Duke Energy Carolinas | Debt Maturing March 2023, 3.050% Coupon | First Mortgage Bonds |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate |  | 3.05% |
Current maturities of long-term debt |  | $ 500,000,000 |
Duke Energy Progress |  |  |
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt |  | $ 66,000,000 | $ 556,000,000

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