Debt and Credit Facilities (Summary of Debt Issuances) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Debt issuances	$ 9,186,000,000	$ 8,107,000,000
Repayments of long-term debt	$ 4,396,000,000	$ 5,294,000,000	$ 4,506,000,000
May 2022 Notes Due May 2052 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate	5.05%
Debt issuances	$ 400,000,000
June 2022 Notes Due June 2028 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate	4.75%
Debt issuances	$ 645,000,000
June 2022 Notes Due June 2034 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate	5.306%
Debt issuances	$ 537,000,000
August 2022 Notes Due March 2028 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate	4.30%
Debt issuances	$ 900,000,000
August 2022 Notes Due August 2032 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate	4.50%
Debt issuances	$ 1,150,000,000
August 2022 Notes Due August 2052 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate	5.00%
Debt issuances	$ 1,150,000,000
December 2022 Notes Due December 2025 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate	5.00%
Debt issuances	$ 500,000,000
December 2022 Notes Due December 2027 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate	5.00%
Debt issuances	$ 500,000,000
March 2022 Notes Due 2032 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate	2.85%
Debt issuances	$ 500,000,000
March 2022 Notes Due March 2052 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate	3.55%
Debt issuances	$ 650,000,000
March 2022 Notes Due April 2032 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate	3.40%
Debt issuances	$ 500,000,000
March 2022 Notes Due April 2052 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate	4.00%
Debt issuances	$ 400,000,000
November 2022 Notes Due November 2052 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate	5.95%
Debt issuances	$ 500,000,000
June 2022 Notes Due September 2030 | Tax Exempt Bonds
Debt Instrument [Line Items]
Interest Rate	4.00%
Debt issuances	$ 168,000,000
June 2022 Notes Due November 2039 | Tax Exempt Bonds
Debt Instrument [Line Items]
Interest Rate	4.25%
Debt issuances	$ 234,000,000
September 2022 Notes Due September 2036 | Tax Exempt Bonds
Debt Instrument [Line Items]
Interest Rate	3.30%
Debt issuances	$ 200,000,000
September 2022 Notes Due September 2030 (1) | Tax Exempt Bonds
Debt Instrument [Line Items]
Interest Rate	3.70%
Debt issuances	$ 210,000,000
September 2022 Notes Due September 2030 (2) | Tax Exempt Bonds
Debt Instrument [Line Items]
Interest Rate	4.00%
Debt issuances	$ 42,000,000
June 2022 Notes Due June 2028 And 2034 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate	3.10%
Debt issuances	$ 600,000,000
Repayments of long-term debt	500,000,000
March 2021 Notes Due March 2031 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate		2.50%
Debt issuances		$ 350,000,000
June 2021 Notes Due June 2023 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate		0.299%
Debt issuances		$ 500,000,000
June 2021 Notes Due June 2031 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate		2.55%
Debt issuances		$ 1,000,000,000
June 2021 Notes Due June 2041 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate		3.30%
Debt issuances		$ 750,000,000
June 2021 Notes Due June 2051 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate		3.50%
Debt issuances		$ 750,000,000
September 2021 Notes Due January 2082 | Unsecured Debt
Debt Instrument [Line Items]
Interest Rate		3.25%
Debt issuances		$ 500,000,000
Repayments of long-term debt		$ 500,000,000
Interest rate reset period (in years)		5 years
November 2021 Notes Due July 2031 | Secured Debt
Debt Instrument [Line Items]
Interest Rate		1.679%
Debt issuances		$ 100,000,000
November 2021 Notes Due July 2041 | Secured Debt
Debt Instrument [Line Items]
Interest Rate		2.617%
Debt issuances		$ 137,000,000
November 2021 Notes Due July 2028 | Secured Debt
Debt Instrument [Line Items]
Interest Rate		1.295%
Debt issuances		$ 221,000,000
November 2021 Notes Due July 2037 | Secured Debt
Debt Instrument [Line Items]
Interest Rate		2.387%
Debt issuances		$ 352,000,000
November 2021 Notes Due July 2041 (2) | Secured Debt
Debt Instrument [Line Items]
Interest Rate		2.799%
Debt issuances		$ 197,000,000
April 2021 Notes Due April 2031 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate		2.55%
Debt issuances		$ 550,000,000
April 2021 Notes Due April 2051 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate		3.45%
Debt issuances		$ 450,000,000
August 2021 Notes Due August 2031 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate		2.00%
Debt issuances		$ 650,000,000
August 2021 Notes Due August 2051 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate		2.90%
Debt issuances		$ 450,000,000
December 2021 Notes Due December 2031 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate		2.40%
Debt issuances		$ 650,000,000
December 2021 Notes Due December 2051 | First Mortgage Bonds
Debt Instrument [Line Items]
Interest Rate		3.00%
Debt issuances		$ 500,000,000
Parent Company
Debt Instrument [Line Items]
Debt issuances	5,784,000,000	3,500,000,000
Duke Energy (Parent)
Debt Instrument [Line Items]
Repayments of long-term debt		1,750,000,000
Duke Energy (Parent) | June 2022 Notes Due June 2028 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances	645,000,000
Duke Energy (Parent) | June 2022 Notes Due June 2034 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances	537,000,000
Duke Energy (Parent) | August 2022 Notes Due March 2028 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances	900,000,000
Duke Energy (Parent) | August 2022 Notes Due August 2032 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances	1,150,000,000
Duke Energy (Parent) | August 2022 Notes Due August 2052 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances	1,150,000,000
Duke Energy (Parent) | December 2022 Notes Due December 2025 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances	500,000,000
Duke Energy (Parent) | December 2022 Notes Due December 2027 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances	500,000,000
Duke Energy (Parent) | June 2022 Notes Due September 2030 | Tax Exempt Bonds
Debt Instrument [Line Items]
Debt issuances	168,000,000
Duke Energy (Parent) | June 2022 Notes Due November 2039 | Tax Exempt Bonds
Debt Instrument [Line Items]
Debt issuances	234,000,000
Duke Energy (Parent) | June 2021 Notes Due June 2023 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances		500,000,000
Duke Energy (Parent) | June 2021 Notes Due June 2031 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances		1,000,000,000
Duke Energy (Parent) | June 2021 Notes Due June 2041 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances		750,000,000
Duke Energy (Parent) | June 2021 Notes Due June 2051 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances		750,000,000
Duke Energy (Parent) | September 2021 Notes Due January 2082 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances		500,000,000
Duke Energy Carolinas
Debt Instrument [Line Items]
Debt issuances	1,150,000,000	1,237,000,000
Repayments of long-term debt	436,000,000	617,000,000	813,000,000
Duke Energy Carolinas | March 2022 Notes Due 2032 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances	500,000,000
Duke Energy Carolinas | March 2022 Notes Due March 2052 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances	650,000,000
Duke Energy Carolinas | November 2021 Notes Due July 2031 | Secured Debt
Debt Instrument [Line Items]
Debt issuances		100,000,000
Duke Energy Carolinas | November 2021 Notes Due July 2041 | Secured Debt
Debt Instrument [Line Items]
Debt issuances		137,000,000
Duke Energy Carolinas | April 2021 Notes Due April 2031 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances		550,000,000
Duke Energy Carolinas | April 2021 Notes Due April 2051 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances		450,000,000
Duke Energy Carolinas | Bonds Maturing June 2021, 3.900% Coupon | First Mortgage Bonds
Debt Instrument [Line Items]
Repayments of long-term debt		500,000,000
Duke Energy Progress
Debt Instrument [Line Items]
Debt issuances	1,352,000,000	1,870,000,000
Repayments of long-term debt	645,000,000	1,308,000,000	1,085,000,000
Duke Energy Progress | First Mortgage Bonds
Debt Instrument [Line Items]
Repayments of long-term debt		600,000,000
Duke Energy Progress | March 2022 Notes Due April 2032 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances	500,000,000
Duke Energy Progress | March 2022 Notes Due April 2052 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances	400,000,000
Duke Energy Progress | September 2022 Notes Due September 2036 | Tax Exempt Bonds
Debt Instrument [Line Items]
Debt issuances	200,000,000
Duke Energy Progress | September 2022 Notes Due September 2030 (1) | Tax Exempt Bonds
Debt Instrument [Line Items]
Debt issuances	210,000,000
Duke Energy Progress | September 2022 Notes Due September 2030 (2) | Tax Exempt Bonds
Debt Instrument [Line Items]
Debt issuances	42,000,000
Duke Energy Progress | November 2021 Notes Due July 2028 | Secured Debt
Debt Instrument [Line Items]
Debt issuances		221,000,000
Duke Energy Progress | November 2021 Notes Due July 2037 | Secured Debt
Debt Instrument [Line Items]
Debt issuances		352,000,000
Duke Energy Progress | November 2021 Notes Due July 2041 (2) | Secured Debt
Debt Instrument [Line Items]
Debt issuances		197,000,000
Duke Energy Progress | August 2021 Notes Due August 2031 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances		650,000,000
Duke Energy Progress | August 2021 Notes Due August 2051 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances		450,000,000
Duke Energy Florida
Debt Instrument [Line Items]
Debt issuances	500,000,000	1,150,000,000
Repayments of long-term debt	77,000,000	575,000,000	572,000,000
Duke Energy Florida | November 2022 Notes Due November 2052 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances	500,000,000
Duke Energy Florida | December 2021 Notes Due December 2031 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances		650,000,000
Duke Energy Florida | December 2021 Notes Due December 2051 | First Mortgage Bonds
Debt Instrument [Line Items]
Debt issuances		500,000,000
Piedmont
Debt Instrument [Line Items]
Debt issuances	400,000,000	350,000,000
Repayments of long-term debt		160,000,000
Piedmont | Unsecured Debt
Debt Instrument [Line Items]
Repayments of long-term debt		160,000,000
Piedmont | May 2022 Notes Due May 2052 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances	400,000,000
Piedmont | March 2021 Notes Due March 2031 | Unsecured Debt
Debt Instrument [Line Items]
Debt issuances		350,000,000
Duke Energy Ohio
Debt Instrument [Line Items]
Repayments of long-term debt		50,000,000
Duke Energy Indiana
Debt Instrument [Line Items]
Repayments of long-term debt	$ 84,000,000	$ 70,000,000	$ 513,000,000