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Debt and Credit Facilities (Summary of Debt Issuances) (Details) € in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Jan. 31, 2025 USD ($) | Apr. 30, 2024 USD ($) | Apr. 30, 2024 EUR (€)
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | $ 7,740,000,000 | $ 9,825,000,000 |  |  |  |
Repayments of long-term debt |  | $ 3,357,000,000 | $ 4,737,000,000 | $ 4,396,000,000 |  |  |
4.85% January 2024 2024 Notes Due January 2027 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.85% |  |  |  |  |
Debt issuances |  | $ 600,000,000 |  |  |  |  |
4.85% January 2024 2024 Notes Due January 2029 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.85% |  |  |  |  |
Debt issuances |  | $ 650,000,000 |  |  |  |  |
April 2024 5.648% Notes Due April 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.648% |  |  |  |  |
Debt issuances |  | $ 815,000,000 |  |  |  | $ 815,000,000 |
June 2024 5.450% Notes Due June 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.45% |  |  |  |  |
Debt issuances |  | $ 750,000,000 |  |  |  |  |
June 2024 5.800% Notes Due June 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.80% |  |  |  |  |
Debt issuances |  | $ 750,000,000 |  |  |  |  |
June 2024 5.900% Notes Due June 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.90% |  |  |  |  |
Debt issuances |  | $ 80,000,000 |  |  |  |  |
June 2024 6.000% Notes Due July 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 6.00% |  |  |  |  |
Debt issuances |  | $ 95,000,000 |  |  |  |  |
June 2024 6.170% Notes Due July 2039 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 6.17% |  |  |  |  |
Debt issuances |  | $ 50,000,000 |  |  |  |  |
August 2024 5.100% Notes Due February 2035 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.10% |  |  |  |  |
Debt issuances |  | $ 375,000,000 |  |  |  |  |
August 2024 6.450% Notes Due September 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 6.45% |  |  |  |  |
Debt issuances |  | $ 1,000,000,000 |  |  |  |  |
Discount rate (as a percent) |  | 2.588% |  |  |  |  |
Interest rate reset period (in years) |  | 5 years |  |  |  |  |
Percentage of principal |  | 100.00% |  |  |  |  |
April 2024 5.404% Notes | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.404% |  |  |  |  |
Debt issuances |  | $ 177,000,000 |  |  |  |  |
4.85% January 2024 Notes Due January 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.85% |  |  |  |  |
Debt issuances |  | $ 575,000,000 |  |  |  |  |
5.40% January 2024 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.40% |  |  |  |  |
Debt issuances |  | $ 425,000,000 |  |  |  |  |
5.25% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.25% |  |  |  |  |
Debt issuances |  | $ 300,000,000 |  |  |  |  |
5.10% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.10% |  |  |  |  |
Debt issuances |  | $ 500,000,000 |  |  |  |  |
5.55% March 2024 Notes Due March 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.55% |  |  |  |  |
Debt issuances |  | $ 425,000,000 |  |  |  |  |
April 2024 Notes Due April 2074 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.91% |  |  |  |  |
Debt issuances |  | $ 173,000,000 |  |  |  |  |
Maturities Due March 2024 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of debt | $ 1,000,000,000 |  |  |  |  |  |
Senior Notes 3.75 Percent Due 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  | 3.75% | 3.75%
Debt issuances | € |  |  |  |  |  |  | € 750
Debt maturing April 2024 | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt repurchased |  |  |  |  |  | $ 1,000,000,000 |
4.125% April 2023 2023 Notes Due April 2026 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 4.125% |  |  |  |
Debt issuances |  |  | $ 1,725,000,000 |  |  |  |
5.400% June 2023 2023 Notes Due June 2023 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.40% |  |  |  |
Debt issuances |  |  | $ 350,000,000 |  |  |  |
Sept 2023 5.75% Notes Due Sept 2033 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.75% |  |  |  |
Debt issuances |  |  | $ 600,000,000 |  |  |  |
Sept 2023 4.300% Notes Due Sept 2053 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 6.10% |  |  |  |
Debt issuances |  |  | $ 750,000,000 |  |  |  |
4.95% January 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 4.95% |  |  |  |
Debt issuances |  |  | $ 900,000,000 |  |  |  |
4.950% June 2023 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 4.95% |  |  |  |
Debt issuances |  |  | $ 350,000,000 |  |  |  |
5.400% June 2023 2023 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.40% |  |  |  |
Debt issuances |  |  | $ 500,000,000 |  |  |  |
4.960% September 2023 Notes Due October 2073 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 4.91% |  |  |  |
Debt issuances |  |  | $ 200,000,000 |  |  |  |
November 2023 Notes Due November 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.875% |  |  |  |
Debt issuances |  |  | $ 600,000,000 |  |  |  |
5.350% January 2023 Notes Due January 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.35% |  |  |  |
Debt issuances |  |  | $ 900,000,000 |  |  |  |
5.250% March 2023 Notes Due March 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.25% |  |  |  |
Debt issuances |  |  | $ 500,000,000 |  |  |  |
5.350% March 2023 Notes Due March 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.35% |  |  |  |
Debt issuances |  |  | $ 500,000,000 |  |  |  |
5.250% March 2023 Notes Due April 2033 (2) | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.25% |  |  |  |
Debt issuances |  |  | $ 375,000,000 |  |  |  |
5.650% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.65% |  |  |  |
Debt issuances |  |  | $ 375,000,000 |  |  |  |
5.400% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 5.40% |  |  |  |
Debt issuances |  |  | $ 500,000,000 |  |  |  |
November 2023 Notes Due November 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 6.20% |  |  |  |
Debt issuances |  |  | $ 700,000,000 |  |  |  |
Maturities Due October 2023 (3) |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of debt |  |  | 45,000,000 |  |  |  |
Maturities Due October 2023 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of debt |  |  | 400,000,000 |  |  |  |
Maturities Due March 2023 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of debt |  |  | 1,000,000,000 |  |  |  |
Maturities Due September 2023 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of debt |  |  | 300,000,000 |  |  |  |
Maturities Due October 2023, Portion |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of debt |  |  | 100,000,000 |  |  |  |
Maturities Due October 2023 (2) |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of debt |  |  | 300,000,000 |  |  |  |
Term Loan Due April 2024 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of debt |  |  | 800,000,000 |  |  |  |
Parent |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 4,565,000,000 | 3,075,000,000 |  |  |  |
Parent | 4.85% January 2024 2024 Notes Due January 2027 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 600,000,000 |  |  |  |  |
Parent | 4.85% January 2024 2024 Notes Due January 2029 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 650,000,000 |  |  |  |  |
Parent | April 2024 5.648% Notes Due April 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 815,000,000 |  |  |  |  |
Parent | June 2024 5.450% Notes Due June 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 750,000,000 |  |  |  |  |
Parent | June 2024 5.800% Notes Due June 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 750,000,000 |  |  |  |  |
Parent | June 2024 5.900% Notes Due June 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | June 2024 6.000% Notes Due July 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | June 2024 6.170% Notes Due July 2039 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | August 2024 5.100% Notes Due February 2035 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | August 2024 6.450% Notes Due September 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 1,000,000,000 |  |  |  |  |
Parent | April 2024 5.404% Notes | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | 4.85% January 2024 Notes Due January 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | 5.40% January 2024 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | 5.25% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | 5.10% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | 5.55% March 2024 Notes Due March 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | April 2024 Notes Due April 2074 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Parent | 4.125% April 2023 2023 Notes Due April 2026 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 1,725,000,000 |  |  |  |
Parent | 5.400% June 2023 2023 Notes Due June 2023 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | Sept 2023 5.75% Notes Due Sept 2033 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 600,000,000 |  |  |  |
Parent | Sept 2023 4.300% Notes Due Sept 2053 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 750,000,000 |  |  |  |
Parent | 4.95% January 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | 4.950% June 2023 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | 5.400% June 2023 2023 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | 4.960% September 2023 Notes Due October 2073 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | November 2023 Notes Due November 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | 5.350% January 2023 Notes Due January 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | 5.250% March 2023 Notes Due March 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | 5.350% March 2023 Notes Due March 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | 5.250% March 2023 Notes Due April 2033 (2) | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | 5.650% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | 5.400% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Parent | November 2023 Notes Due November 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Carolinas |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 1,000,000,000 | 2,650,000,000 |  |  |  |
Repayments of long-term debt |  | 19,000,000 | 1,042,000,000 | 436,000,000 |  |  |
Duke Energy Carolinas | First Mortgage Bonds | Subsequent Event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  |  |  | $ 1,100,000,000 |  |
Duke Energy Carolinas | 4.85% January 2024 2024 Notes Due January 2027 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | 4.85% January 2024 2024 Notes Due January 2029 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | April 2024 5.648% Notes Due April 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | June 2024 5.450% Notes Due June 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | June 2024 5.800% Notes Due June 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | June 2024 5.900% Notes Due June 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | June 2024 6.000% Notes Due July 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | June 2024 6.170% Notes Due July 2039 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | August 2024 5.100% Notes Due February 2035 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | August 2024 6.450% Notes Due September 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | April 2024 5.404% Notes | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | 4.85% January 2024 Notes Due January 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 575,000,000 |  |  |  |  |
Duke Energy Carolinas | 5.40% January 2024 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 425,000,000 |  |  |  |  |
Duke Energy Carolinas | 5.25% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | 5.10% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | 5.55% March 2024 Notes Due March 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | April 2024 Notes Due April 2074 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Carolinas | 4.95% January 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 900,000,000 |  |  |  |
Duke Energy Carolinas | 4.950% June 2023 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 350,000,000 |  |  |  |
Duke Energy Carolinas | 5.400% June 2023 2023 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 500,000,000 |  |  |  |
Duke Energy Carolinas | 4.960% September 2023 Notes Due October 2073 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Carolinas | November 2023 Notes Due November 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Carolinas | 5.350% January 2023 Notes Due January 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 900,000,000 |  |  |  |
Duke Energy Carolinas | 5.250% March 2023 Notes Due March 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Carolinas | 5.350% March 2023 Notes Due March 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Carolinas | 5.250% March 2023 Notes Due April 2033 (2) | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Carolinas | 5.650% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Carolinas | 5.400% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Carolinas | November 2023 Notes Due November 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Progress |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 677,000,000 | 1,000,000,000 |  |  |  |
Repayments of long-term debt |  | 72,000,000 | 369,000,000 | 645,000,000 |  |  |
Duke Energy Progress | 4.85% January 2024 2024 Notes Due January 2027 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | 4.85% January 2024 2024 Notes Due January 2029 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | April 2024 5.648% Notes Due April 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | June 2024 5.450% Notes Due June 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | June 2024 5.800% Notes Due June 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | June 2024 5.900% Notes Due June 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | June 2024 6.000% Notes Due July 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | June 2024 6.170% Notes Due July 2039 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | August 2024 5.100% Notes Due February 2035 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | August 2024 6.450% Notes Due September 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | April 2024 5.404% Notes | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 177,000,000 |  |  |  |  |
Duke Energy Progress | 4.85% January 2024 Notes Due January 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | 5.40% January 2024 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | 5.25% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | 5.10% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 500,000,000 |  |  |  |  |
Duke Energy Progress | 5.55% March 2024 Notes Due March 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | April 2024 Notes Due April 2074 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Progress | 4.95% January 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Progress | 4.950% June 2023 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Progress | 5.400% June 2023 2023 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Progress | 4.960% September 2023 Notes Due October 2073 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Progress | November 2023 Notes Due November 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Progress | 5.350% January 2023 Notes Due January 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Progress | 5.250% March 2023 Notes Due March 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 500,000,000 |  |  |  |
Duke Energy Progress | 5.350% March 2023 Notes Due March 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 500,000,000 |  |  |  |
Duke Energy Progress | 5.250% March 2023 Notes Due April 2033 (2) | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Progress | 5.650% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Progress | 5.400% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Progress | November 2023 Notes Due November 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Florida |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 173,000,000 | 1,500,000,000 |  |  |  |
Repayments of long-term debt |  | 395,000,000 | 879,000,000 | 77,000,000 |  |  |
Duke Energy Florida | 4.85% January 2024 2024 Notes Due January 2027 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | 4.85% January 2024 2024 Notes Due January 2029 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | April 2024 5.648% Notes Due April 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | June 2024 5.450% Notes Due June 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | June 2024 5.800% Notes Due June 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | June 2024 5.900% Notes Due June 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | June 2024 6.000% Notes Due July 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | June 2024 6.170% Notes Due July 2039 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | August 2024 5.100% Notes Due February 2035 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | August 2024 6.450% Notes Due September 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | April 2024 5.404% Notes | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | 4.85% January 2024 Notes Due January 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | 5.40% January 2024 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | 5.25% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | 5.10% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | 5.55% March 2024 Notes Due March 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Florida | April 2024 Notes Due April 2074 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 173,000,000 |  |  |  |  |
Duke Energy Florida | 4.960% September 2023 Notes Due October 2073 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 200,000,000 |  |  |  |
Duke Energy Florida | November 2023 Notes Due November 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 600,000,000 |  |  |  |
Duke Energy Florida | November 2023 Notes Due November 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 700,000,000 |  |  |  |
Piedmont |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 375,000,000 | 350,000,000 |  |  |  |
Repayments of long-term debt |  | 40,000,000 | 45,000,000 | 0 |  |  |
Piedmont | 4.85% January 2024 2024 Notes Due January 2027 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | 4.85% January 2024 2024 Notes Due January 2029 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | April 2024 5.648% Notes Due April 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | June 2024 5.450% Notes Due June 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | June 2024 5.800% Notes Due June 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | June 2024 5.900% Notes Due June 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | June 2024 6.000% Notes Due July 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | June 2024 6.170% Notes Due July 2039 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | August 2024 5.100% Notes Due February 2035 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 375,000,000 |  |  |  |  |
Piedmont | August 2024 6.450% Notes Due September 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | April 2024 5.404% Notes | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | 4.85% January 2024 Notes Due January 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | 5.40% January 2024 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | 5.25% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | 5.10% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | 5.55% March 2024 Notes Due March 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | April 2024 Notes Due April 2074 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Piedmont | 4.125% April 2023 2023 Notes Due April 2026 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | 5.400% June 2023 2023 Notes Due June 2023 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 350,000,000 |  |  |  |
Piedmont | 4.95% January 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | 4.950% June 2023 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | 5.400% June 2023 2023 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | 4.960% September 2023 Notes Due October 2073 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | November 2023 Notes Due November 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | 5.350% January 2023 Notes Due January 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | 5.250% March 2023 Notes Due March 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | 5.350% March 2023 Notes Due March 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | 5.250% March 2023 Notes Due April 2033 (2) | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | 5.650% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | 5.400% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Piedmont | November 2023 Notes Due November 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Ohio |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 650,000,000 | 750,000,000 |  |  |  |
Repayments of long-term debt |  | 0 | 500,000,000 | 0 |  |  |
Duke Energy Ohio | 4.85% January 2024 2024 Notes Due January 2027 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | 4.85% January 2024 2024 Notes Due January 2029 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | April 2024 5.648% Notes Due April 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | June 2024 5.450% Notes Due June 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | June 2024 5.800% Notes Due June 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | June 2024 5.900% Notes Due June 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 80,000,000 |  |  |  |  |
Duke Energy Ohio | June 2024 6.000% Notes Due July 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 95,000,000 |  |  |  |  |
Duke Energy Ohio | June 2024 6.170% Notes Due July 2039 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 50,000,000 |  |  |  |  |
Duke Energy Ohio | August 2024 5.100% Notes Due February 2035 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | August 2024 6.450% Notes Due September 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | April 2024 5.404% Notes | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | 4.85% January 2024 Notes Due January 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | 5.40% January 2024 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | 5.25% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | 5.10% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | 5.55% March 2024 Notes Due March 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 425,000,000 |  |  |  |  |
Duke Energy Ohio | April 2024 Notes Due April 2074 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Ohio | 5.250% March 2023 Notes Due April 2033 (2) | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 375,000,000 |  |  |  |
Duke Energy Ohio | 5.650% March 2023 Notes Due April 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 375,000,000 |  |  |  |
Duke Energy Indiana |  |  |  |  |  |  |
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Repayments of long-term debt |  | 4,000,000 | 303,000,000 | $ 84,000,000 |  |  |
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Debt Instrument [Line Items] |  |  |  |  |  |  |
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Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | April 2024 5.648% Notes Due April 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | June 2024 5.450% Notes Due June 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | June 2024 5.800% Notes Due June 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | June 2024 5.900% Notes Due June 2031 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | June 2024 6.000% Notes Due July 2034 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | June 2024 6.170% Notes Due July 2039 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | August 2024 5.100% Notes Due February 2035 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | August 2024 6.450% Notes Due September 2054 | Unsecured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | April 2024 5.404% Notes | Secured Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
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Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | 5.40% January 2024 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | 5.25% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 300,000,000 |  |  |  |  |
Duke Energy Indiana | 5.10% March 2024 Notes Due March 2034 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | 5.55% March 2024 Notes Due March 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |
Duke Energy Indiana | April 2024 Notes Due April 2074 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  | $ 0 |  |  |  |  |
Duke Energy Indiana | 4.95% January 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Indiana | 4.950% June 2023 2023 Notes Due January 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Indiana | 5.400% June 2023 2023 Notes Due January 2054 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Indiana | 4.960% September 2023 Notes Due October 2073 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Indiana | November 2023 Notes Due November 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Indiana | 5.350% January 2023 Notes Due January 2053 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuances |  |  | 0 |  |  |  |
Duke Energy Indiana | 5.250% March 2023 Notes Due March 2033 | First Mortgage Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
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