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Debt and Credit Facilities (Summary of Debt Issuances) (Details) € in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 31, 2026 USD ($) | Dec. 31, 2025 USD ($) | Oct. 31, 2025 USD ($) | Sep. 30, 2025 USD ($) | Jun. 30, 2025 USD ($) | Apr. 30, 2025 USD ($) | Jan. 31, 2025 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) | Apr. 30, 2024 USD ($) | Apr. 30, 2024 EUR (€)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | $ 7,005,000,000 |  |  |  |  |  |  | $ 7,005,000,000 | $ 7,740,000,000 |  |
Repayments of debt |  | $ 500,000,000 | $ 95,000,000 | $ 650,000,000 | $ 150,000,000 |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Repayments of debt | $ 45,000,000 |  |  |  |  |  |  |  |  |  |  |
5.410% Unsecured Debt Due September 2030 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.41% |  |  |  |  |  |  | 5.41% |  |  |
Debt issuances |  | $ 68,000,000 |  |  |  |  |  |  | $ 68,000,000 |  |  |
6.010 Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 6.01% |  |  |  |  |  |  | 6.01% |  |  |
Debt issuances |  | $ 43,000,000 |  |  |  |  |  |  | $ 43,000,000 |  |  |
6.110% Unsecured Debt Due September 2037 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 6.11% |  |  |  |  |  |  | 6.11% |  |  |
Debt issuances |  | $ 40,000,000 |  |  |  |  |  |  | $ 40,000,000 |  |  |
4.950% Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.95% |  |  |  |  |  |  | 4.95% |  |  |
Debt issuances |  | $ 1,000,000,000 |  |  |  |  |  |  | $ 1,000,000,000 |  |  |
5.700 Unsecured Debt Due September 2055 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.70% |  |  |  |  |  |  | 5.70% |  |  |
Debt issuances |  | $ 750,000,000 |  |  |  |  |  |  | $ 750,000,000 |  |  |
4.226% Secured Debt due July 2037 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.226% |  |  |  |  |  |  | 4.226% |  |  |
Debt issuances |  | $ 200,000,000 |  |  |  |  |  |  | $ 200,000,000 |  |  |
5.070% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.07% |  |  |  |  |  |  | 5.07% |  |  |
Debt issuances |  | $ 382,000,000 |  |  |  |  |  |  | $ 382,000,000 |  |  |
4.890% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.89% |  |  |  |  |  |  | 4.89% |  |  |
Debt issuances |  | $ 461,000,000 |  |  |  |  |  |  | $ 461,000,000 |  |  |
4.898% Secured Debt due July 2046 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.898% |  |  |  |  |  |  | 4.898% |  |  |
Debt issuances |  | $ 561,000,000 |  |  |  |  |  |  | $ 561,000,000 |  |  |
First Mortgage Bonds Issued January 2025 Due March 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.85% |  |  |  |  |  |  | 4.85% |  |  |
Debt issuances |  | $ 400,000,000 |  |  |  |  |  |  | $ 400,000,000 |  |  |
First Mortgage Bonds Issued January 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.25% |  |  |  |  |  |  | 5.25% |  |  |
Debt issuances |  | $ 700,000,000 |  |  |  |  |  |  | $ 700,000,000 |  |  |
First Mortgage Bonds Issued March 2025 Due March 2027 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.35% |  |  |  |  |  |  | 4.35% |  |  |
Debt issuances |  | $ 500,000,000 |  |  |  |  |  |  | $ 500,000,000 |  |  |
First Mortgage Bonds Issued March 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.05% |  |  |  |  |  |  | 5.05% |  |  |
Debt issuances |  | $ 850,000,000 |  |  |  |  |  |  | $ 850,000,000 |  |  |
First Mortgage Bonds Issued March 2025 Due March 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.55% |  |  |  |  |  |  | 5.55% |  |  |
Debt issuances |  | $ 750,000,000 |  |  |  |  |  |  | $ 750,000,000 |  |  |
First Mortgage Bonds Issued May 2025 Due may 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.90% |  |  |  |  |  |  | 5.90% |  |  |
Debt issuances |  | $ 300,000,000 |  |  |  |  |  |  | $ 300,000,000 |  |  |
First Mortgage Bonds Issued June 2025 Due June 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.30% |  |  |  |  |  |  | 5.30% |  |  |
Debt issuances |  | $ 350,000,000 |  |  |  |  |  |  | $ 350,000,000 |  |  |
First Mortgage Bonds Issued November 2025 Due December 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.20% |  |  |  |  |  |  | 4.20% |  |  |
Debt issuances |  | $ 500,000,000 |  |  |  |  |  |  | $ 500,000,000 |  |  |
First Mortgage Bonds Issued November 2025 Due December 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.85% |  |  |  |  |  |  | 4.85% |  |  |
Debt issuances |  | $ 600,000,000 |  |  |  |  |  |  | $ 600,000,000 |  |  |
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% |  |  |  |  |  |  | 6.45% | 6.45% |  |
Debt issuances |  | $ 1,000,000,000 |  |  |  |  |  |  | $ 1,000,000,000 | $ 1,000,000,000 |  |
Interest rate reset period (in years) |  |  |  |  |  |  |  |  | 5 years |  |  |
Discount rate (as a percent) |  |  |  |  |  |  |  |  | 2.588% |  |  |
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) |  |  |  |  |  |  |  |  |  | 3.981% |  |
Debt issuances |  |  |  |  |  |  |  |  |  | $ 173,000,000 |  |
Maturities Due March 2024 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Repayments of debt |  |  |  |  |  |  |  | $ 1,000,000,000 |  |  |  |
3.75% Senior Notes 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 |
DERF Accounts Receivable Securitization Facility Maturing January 2025 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Repayments of debt |  |  |  |  |  |  | $ 500,000,000 |  |  |  |  |
DEPR Accounts Receivable Securitization Facility Maturing April 2025 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Repayments of debt |  |  |  |  |  | $ 400,000,000 |  |  |  |  |  |
Parent |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 1,750,000,000 |  |  |  |  |  |  | $ 1,750,000,000 | 4,565,000,000 |  |
Parent | 5.410% Unsecured Debt Due September 2030 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | 6.010 Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | 6.110% Unsecured Debt Due September 2037 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | 4.950% Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 1,000,000,000 |  |  |  |  |  |  | 1,000,000,000 |  |  |
Parent | 5.700 Unsecured Debt Due September 2055 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 750,000,000 |  |  |  |  |  |  | 750,000,000 |  |  |
Parent | 4.226% Secured Debt due July 2037 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | 5.070% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | 4.890% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | 4.898% Secured Debt due July 2046 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | First Mortgage Bonds Issued January 2025 Due March 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | First Mortgage Bonds Issued January 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | First Mortgage Bonds Issued March 2025 Due March 2027 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | First Mortgage Bonds Issued March 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | First Mortgage Bonds Issued March 2025 Due March 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | First Mortgage Bonds Issued May 2025 Due may 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | First Mortgage Bonds Issued June 2025 Due June 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | First Mortgage Bonds Issued November 2025 Due December 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Parent | First Mortgage Bonds Issued November 2025 Due December 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
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 |  |
Duke Energy Carolinas |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 2,243,000,000 |  |  |  |  |  |  | 2,243,000,000 | 1,000,000,000 |  |
Duke Energy Carolinas | 5.410% Unsecured Debt Due September 2030 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | 6.010 Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | 6.110% Unsecured Debt Due September 2037 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | 4.950% Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | 5.700 Unsecured Debt Due September 2055 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | 4.226% Secured Debt due July 2037 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 200,000,000 |  |  |  |  |  |  | 200,000,000 |  |  |
Duke Energy Carolinas | 5.070% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 382,000,000 |  |  |  |  |  |  | 382,000,000 |  |  |
Duke Energy Carolinas | 4.890% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | 4.898% Secured Debt due July 2046 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 561,000,000 |  |  |  |  |  |  | 561,000,000 |  |  |
Duke Energy Carolinas | First Mortgage Bonds Issued January 2025 Due March 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 400,000,000 |  |  |  |  |  |  | 400,000,000 |  |  |
Duke Energy Carolinas | First Mortgage Bonds Issued January 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 700,000,000 |  |  |  |  |  |  | 700,000,000 |  |  |
Duke Energy Carolinas | First Mortgage Bonds Issued March 2025 Due March 2027 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | First Mortgage Bonds Issued March 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | First Mortgage Bonds Issued March 2025 Due March 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | First Mortgage Bonds Issued May 2025 Due may 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | First Mortgage Bonds Issued June 2025 Due June 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | First Mortgage Bonds Issued November 2025 Due December 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Carolinas | First Mortgage Bonds Issued November 2025 Due December 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
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 Progress |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 2,561,000,000 |  |  |  |  |  |  | 2,561,000,000 | 677,000,000 |  |
Duke Energy Progress | 5.410% Unsecured Debt Due September 2030 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | 6.010 Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | 6.110% Unsecured Debt Due September 2037 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | 4.950% Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | 5.700 Unsecured Debt Due September 2055 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | 4.226% Secured Debt due July 2037 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | 5.070% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | 4.890% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 461,000,000 |  |  |  |  |  |  | 461,000,000 |  |  |
Duke Energy Progress | 4.898% Secured Debt due July 2046 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | First Mortgage Bonds Issued January 2025 Due March 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | First Mortgage Bonds Issued January 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | First Mortgage Bonds Issued March 2025 Due March 2027 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 500,000,000 |  |  |  |  |  |  | 500,000,000 |  |  |
Duke Energy Progress | First Mortgage Bonds Issued March 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 850,000,000 |  |  |  |  |  |  | 850,000,000 |  |  |
Duke Energy Progress | First Mortgage Bonds Issued March 2025 Due March 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 750,000,000 |  |  |  |  |  |  | 750,000,000 |  |  |
Duke Energy Progress | First Mortgage Bonds Issued May 2025 Due may 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | First Mortgage Bonds Issued June 2025 Due June 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | First Mortgage Bonds Issued November 2025 Due December 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Progress | First Mortgage Bonds Issued November 2025 Due December 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
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 Florida |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 1,100,000,000 |  |  |  |  |  |  | 1,100,000,000 | 173,000,000 |  |
Duke Energy Florida | 5.410% Unsecured Debt Due September 2030 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | 6.010 Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | 6.110% Unsecured Debt Due September 2037 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | 4.950% Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | 5.700 Unsecured Debt Due September 2055 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | 4.226% Secured Debt due July 2037 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | 5.070% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | 4.890% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | 4.898% Secured Debt due July 2046 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | First Mortgage Bonds Issued January 2025 Due March 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | First Mortgage Bonds Issued January 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | First Mortgage Bonds Issued March 2025 Due March 2027 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | First Mortgage Bonds Issued March 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | First Mortgage Bonds Issued March 2025 Due March 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | First Mortgage Bonds Issued May 2025 Due may 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | First Mortgage Bonds Issued June 2025 Due June 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Florida | First Mortgage Bonds Issued November 2025 Due December 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 500,000,000 |  |  |  |  |  |  | 500,000,000 |  |  |
Duke Energy Florida | First Mortgage Bonds Issued November 2025 Due December 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 600,000,000 |  |  |  |  |  |  | 600,000,000 |  |  |
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 Ohio |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 501,000,000 |  |  |  |  |  |  | 501,000,000 | 650,000,000 |  |
Duke Energy Ohio | 5.410% Unsecured Debt Due September 2030 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 68,000,000 |  |  |  |  |  |  | 68,000,000 |  |  |
Duke Energy Ohio | 6.010 Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 43,000,000 |  |  |  |  |  |  | 43,000,000 |  |  |
Duke Energy Ohio | 6.110% Unsecured Debt Due September 2037 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 40,000,000 |  |  |  |  |  |  | 40,000,000 |  |  |
Duke Energy Ohio | 4.950% Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | 5.700 Unsecured Debt Due September 2055 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | 4.226% Secured Debt due July 2037 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | 5.070% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | 4.890% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | 4.898% Secured Debt due July 2046 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | First Mortgage Bonds Issued January 2025 Due March 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | First Mortgage Bonds Issued January 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | First Mortgage Bonds Issued March 2025 Due March 2027 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | First Mortgage Bonds Issued March 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | First Mortgage Bonds Issued March 2025 Due March 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | First Mortgage Bonds Issued May 2025 Due may 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | First Mortgage Bonds Issued June 2025 Due June 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 350,000,000 |  |  |  |  |  |  | 350,000,000 |  |  |
Duke Energy Ohio | First Mortgage Bonds Issued November 2025 Due December 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Ohio | First Mortgage Bonds Issued November 2025 Due December 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 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 Indiana |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 300,000,000 |  |  |  |  |  |  | 300,000,000 | 300,000,000 |  |
Duke Energy Indiana | 5.410% Unsecured Debt Due September 2030 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | 6.010 Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | 6.110% Unsecured Debt Due September 2037 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | 4.950% Unsecured Debt Due September 2035 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | 5.700 Unsecured Debt Due September 2055 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | 4.226% Secured Debt due July 2037 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | 5.070% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | 4.890% Secured Debt due July 2048 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | 4.898% Secured Debt due July 2046 | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | First Mortgage Bonds Issued January 2025 Due March 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | First Mortgage Bonds Issued January 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | First Mortgage Bonds Issued March 2025 Due March 2027 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | First Mortgage Bonds Issued March 2025 Due March 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | First Mortgage Bonds Issued March 2025 Due March 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | First Mortgage Bonds Issued May 2025 Due may 2055 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 300,000,000 |  |  |  |  |  |  | 300,000,000 |  |  |
Duke Energy Indiana | First Mortgage Bonds Issued June 2025 Due June 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | First Mortgage Bonds Issued November 2025 Due December 2030 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | 0 |  |  |  |  |  |  | 0 |  |  |
Duke Energy Indiana | First Mortgage Bonds Issued November 2025 Due December 2035 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  | $ 0 |  |  |  |  |  |  | $ 0 |  |  |
Duke Energy Indiana | 4.85% January 2024 2024 Notes Due January 2027 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  |  |  |  |  |  |  |  |  | 0 |  |
Duke Energy Indiana | 4.85% January 2024 2024 Notes Due January 2029 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |
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 |  |
Duke Energy Indiana | 4.85% January 2024 Notes Due January 2034 | First Mortgage Bonds |  |  |  |  |  |  |  |  |  |  |  |
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 |  |
Piedmont |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt issuances |  |  |  |  |  |  |  |  |  | 375,000,000 |  |
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 |  |

X
- Definition Debt Instrument, Interest Rate Reset Period + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482949/835-30-55-8 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69B -Publisher FASB -URI https://asc.fasb.org/1943274/2147481568/470-20-55-69B Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69C -Publisher FASB -URI https://asc.fasb.org/1943274/2147481568/470-20-55-69C Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482900/835-30-50-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482925/835-30-45-2 + Details
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