Debt and Credit Facilities (Narrative) (Details)			1 Months Ended	3 Months Ended
	Jun. 30, 2023 USD ($) day $ / shares	Mar. 09, 2022 USD ($)	Apr. 30, 2023 USD ($) $ / shares	Mar. 31, 2022	Mar. 31, 2023 USD ($)	Dec. 31, 2022 $ / shares
Debt Instrument [Line Items]
Sale of debt	$ 6,975,000,000
Common stock, par value (in usd per share) | $ / shares	$ 0.001					$ 0.001
4.25% Convertible Senior notes Due April 2026
Debt Instrument [Line Items]
Interest rate			4.125%
Duke Energy (Parent)
Debt Instrument [Line Items]
Sale of debt	$ 1,725,000,000
Duke Energy (Parent) | 4.25% Convertible Senior notes Due April 2026
Debt Instrument [Line Items]
Sale of debt			$ 1,700,000,000
Common stock, par value (in usd per share) | $ / shares			$ 0.001
Conversion ratio			0.0084131
Debt conversion rate (as a percent)				25.00%
Progress Energy
Debt Instrument [Line Items]
Common stock, par value (in usd per share) | $ / shares	$ 0.01					$ 0.01
Convertible Debt | 4.25% Convertible Senior notes Due April 2026 | Debt Conversion Terms One
Debt Instrument [Line Items]
Trading days | day	20
Consecutive trading days | day	30
Debt conversion rate (as a percent)	130.00%
Convertible Debt | 4.25% Convertible Senior notes Due April 2026 | Debt Conversion Terms Two
Debt Instrument [Line Items]
Trading days | day	5
Consecutive trading days | day	10
Debt conversion rate (as a percent)	98.00%
Master Credit Facility
Debt Instrument [Line Items]
Facility size	$ 9,000,000,000				$ 9,000,000,000
Master Credit Facility | Duke Energy Florida
Debt Instrument [Line Items]
Facility size	$ 1,350,000,000
Master Credit Facility | Term Loan Facility | Duke Energy (Parent)
Debt Instrument [Line Items]
Facility size		$ 1,400,000,000
Extension period (in years)		2 years
June 2017 Three Year Revolving Credit Facility
Debt Instrument [Line Items]
Facility term (in years)		3 years