Debt and Credit Facilities (Narrative) (Details)				1 Months Ended								2 Months Ended		3 Months Ended	12 Months Ended
	Nov. 07, 2024 USD ($)	Jun. 30, 2023 day	Apr. 03, 2023	Jan. 31, 2025 USD ($)	Apr. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Jan. 31, 2024 USD ($)	Apr. 30, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Feb. 27, 2025 USD ($)	Dec. 31, 2024 USD ($) $ / shares	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($) $ / shares	Mar. 31, 2023 USD ($)	Mar. 30, 2022 USD ($)
Debt Instrument [Line Items]
Debt issuances													$ 7,740,000,000		$ 9,825,000,000
Common stock, par value (in usd per share) | $ / shares													$ 0.001		$ 0.001
Demand notes, maximum amount available for sale										$ 4,000,000,000
Demand notes, maximum amount outstanding										$ 2,000,000,000
Principal amount of demand notes													$ 1,070,000,000		$ 985,000,000
Current maturities of long-term debt													4,349,000,000		2,800,000,000
Other loans outstanding against cash surrender value of life insurance policies													$ 903,000,000		873,000,000
Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower													0.65
Revolving Credit Facility
Debt Instrument [Line Items]
Facility size													$ 9,000,000,000			$ 9,000,000,000
Letters of Credit Outstanding, Amount													18,000,000
June 2017 Three Year Revolving Credit Facility
Debt Instrument [Line Items]
Term (in years)										3 years	3 years
4.25% Convertible Senior notes Due April 2026
Debt Instrument [Line Items]
Interest rate (as a percent)								4.125%
4.25% Convertible Senior notes Due April 2026 | Convertible Debt | Debt Conversion Terms One
Debt Instrument [Line Items]
Trading days (in days) | day		20
Consecutive trading days (in days) | day		30
Debt conversion rate (as a percent)		130.00%
4.25% Convertible Senior notes Due April 2026 | Convertible Debt | Debt Conversion Terms Two
Debt Instrument [Line Items]
Trading days (in days) | day		5
Consecutive trading days (in days) | day		10
Debt conversion rate (as a percent)		98.00%
Term Loan Due April 2024
Debt Instrument [Line Items]
Repayments of debt															800,000,000
Duke Energy Term Loan Facility | Line of Credit
Debt Instrument [Line Items]
Term (in years)	2 years
Duke Energy Carolinas
Debt Instrument [Line Items]
Debt issuances													1,000,000,000		2,650,000,000
Current maturities of long-term debt													$ 521,000,000		19,000,000
Duke Energy Carolinas | Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower													0.65
Duke Energy Carolinas | Revolving Credit Facility
Debt Instrument [Line Items]
Facility size													$ 1,400,000,000
Letters of Credit Outstanding, Amount													4,000,000
Duke Energy Carolinas | First Mortgage Bonds | Subsequent Event
Debt Instrument [Line Items]
Debt issuances				$ 1,100,000,000
Duke Energy Carolinas | January 2025 First Mortgage Loans, Five Year Tranche | First Mortgage Bonds | Subsequent Event
Debt Instrument [Line Items]
Debt issuances				$ 400,000,000
Term (in years)				5 years
Interest rate (as a percent)				4.85%
Duke Energy Carolinas | January 2025 First Mortgage Loans, Ten Year Tranche | First Mortgage Bonds | Subsequent Event
Debt Instrument [Line Items]
Debt issuances				$ 700,000,000
Term (in years)				10 years
Interest rate (as a percent)				5.25%
Duke Energy Carolinas | Maturities Due January 2025 | Subsequent Event
Debt Instrument [Line Items]
Repayments of debt				$ 500,000,000
Duke Energy Carolinas | Duke Energy Term Loan Facility | Line of Credit
Debt Instrument [Line Items]
Facility size	$ 700,000,000
Drawings on credit facility													455,000,000
Facility increase	$ 300,000,000
Duke Energy Carolinas | Duke Energy Term Loan Facility | Line of Credit | Subsequent Event
Debt Instrument [Line Items]
Drawings on credit facility												$ 145,000,000
Parent
Debt Instrument [Line Items]
Debt issuances													4,565,000,000		3,075,000,000
Parent | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Repayments of debt							$ 1,000,000,000		$ 400,000,000
Facility size											$ 1,400,000,000						$ 1,000,000,000
Parent | 4.25% Convertible Senior notes Due April 2026
Debt Instrument [Line Items]
Debt issuances								$ 1,700,000,000
Debt conversion rate (as a percent)			25.00%
Common stock, par value (in usd per share) | $ / shares								$ 0.001
Conversion ratio								0.0084131
Parent | Duke Energy Term Loan Facility | Line of Credit
Debt Instrument [Line Items]
Term (in years)						364 days
Repayments of debt														$ 500,000,000
Facility size						$ 700,000,000
Drawings on credit facility					$ 500,000,000
Duke Energy Florida
Debt Instrument [Line Items]
Debt issuances													173,000,000		1,500,000,000
Current maturities of long-term debt													$ 534,000,000		$ 589,000,000
Duke Energy Florida | Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower													0.65
Duke Energy Florida | Revolving Credit Facility
Debt Instrument [Line Items]
Facility size													$ 875,000,000
Letters of Credit Outstanding, Amount													7,000,000
Duke Energy Florida | Duke Energy Term Loan Facility | Line of Credit
Debt Instrument [Line Items]
Term (in years)	364 days
Facility size	$ 800,000,000
Drawings on credit facility													$ 100,000,000
Facility increase	400,000,000
Duke Energy Florida | Duke Energy Term Loan Facility | Line of Credit | Subsequent Event
Debt Instrument [Line Items]
Drawings on credit facility												700,000,000
Progress Energy
Debt Instrument [Line Items]
Common stock, par value (in usd per share) | $ / shares													$ 0.01		$ 0.01
Current maturities of long-term debt													$ 1,517,000,000		$ 661,000,000
Progress Energy | Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower													0.65
Progress Energy | Line of Credit | Revolving Credit Facility | Progress Energy
Debt Instrument [Line Items]
Facility size											$ 2,500,000,000
Duke Energy Ohio
Debt Instrument [Line Items]
Debt issuances													$ 650,000,000		$ 750,000,000
Common stock, par value (in usd per share) | $ / shares													$ 8.50		$ 8.50
Current maturities of long-term debt													$ 245,000,000		$ 0
Duke Energy Ohio | Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower													0.65
Duke Energy Ohio | Revolving Credit Facility
Debt Instrument [Line Items]
Facility size													$ 1,050,000,000
Duke Energy Indiana
Debt Instrument [Line Items]
Debt issuances													300,000,000		500,000,000
Current maturities of long-term debt													$ 4,000,000		4,000,000
Duke Energy Indiana | Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower													0.65
Duke Energy Indiana | Revolving Credit Facility
Debt Instrument [Line Items]
Facility size													$ 950,000,000
Duke Energy Progress
Debt Instrument [Line Items]
Debt issuances													677,000,000		1,000,000,000
Current maturities of long-term debt													983,000,000		72,000,000
Other loans outstanding against cash surrender value of life insurance policies													$ 32,000,000		32,000,000
Duke Energy Progress | Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower													0.65
Duke Energy Progress | Revolving Credit Facility
Debt Instrument [Line Items]
Facility size													$ 1,500,000,000
Letters of Credit Outstanding, Amount													1,000,000
Duke Energy Progress | Duke Energy Term Loan Facility | Line of Credit
Debt Instrument [Line Items]
Facility size	250,000,000
Drawings on credit facility													185,000,000
Facility increase	$ 150,000,000
Duke Energy Progress | Duke Energy Term Loan Facility | Line of Credit | Subsequent Event
Debt Instrument [Line Items]
Drawings on credit facility												$ 65,000,000
Piedmont
Debt Instrument [Line Items]
Debt issuances													$ 375,000,000		$ 350,000,000
Common stock, par value (in usd per share) | $ / shares													$ 0		$ 0
Current maturities of long-term debt													$ 205,000,000		$ 40,000,000
Piedmont | Maximum
Debt Instrument [Line Items]
Debt to total capitalization percentage, for each borrower													0.70
Piedmont | Revolving Credit Facility
Debt Instrument [Line Items]
Facility size													$ 950,000,000