Debt and Credit Facilities (Summary of Debt Issuances) (Details)	3 Months Ended
	Mar. 31, 2024 USD ($)
Debt Instrument [Line Items]
Debt issuances	$ 3,475,000,000
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
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
Maturities Due March 2024
Debt Instrument [Line Items]
Repayments of debt	1,000,000,000
Duke Energy (Parent)
Debt Instrument [Line Items]
Debt issuances	1,250,000,000
Duke Energy (Parent) | 4.85% January 2024 2024 Notes Due January 2027 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances	600,000,000
Duke Energy (Parent) | 4.85% January 2024 2024 Notes Due January 2029 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances	650,000,000
Duke Energy Carolinas
Debt Instrument [Line Items]
Debt issuances	1,000,000,000
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 | 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 Progress
Debt Instrument [Line Items]
Debt issuances	500,000,000
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 | 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 Ohio
Debt Instrument [Line Items]
Debt issuances	425,000,000
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 Indiana
Debt Instrument [Line Items]
Debt issuances	300,000,000
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