Debt and Credit Facilities (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

The following table summarizes significant debt issuances (in millions).

				Nine Months Ended September 30, 2021
						Duke		Duke		Duke
	Maturity	Interest		Duke		Energy		Energy		Energy
Issuance Date	Date	Rate		Energy		(Parent)		Carolinas		Progress		Piedmont
Unsecured Debt
March 2021(a)	March 2031	2.500	%	$	350	$	—	$	—	$	—	$	350
June 2021(b)(c)	June 2023	2.500	%	500		500		—		—		—
June 2021(c)	June 2031	2.550	%	1,000		1,000		—		—		—
June 2021(c)	June 2041	3.300	%	750		750		—		—		—
June 2021(c)	June 2051	3.500	%	750		750		—		—		—
September 2021(d)	January 2082	3.250	%	500		500		—		—		—
First Mortgage Bonds
April 2021(e)	April 2031	2.550	%	550		—		550		—		—
April 2021(e)	April 2051	3.450	%	450		—		450		—		—
August 2021(f)	August 2031	2.000	%	650		—		—		650		—
August 2021(f)	August 2051	2.900	%	450		—		—		450		—
Total issuances				$	5,950	$	3,500	$	1,000	$	1,100	$	350

(a)Debt issued to repay at maturity $160 million senior unsecured notes due June 2021, pay down short-term debt and for general corporate purposes.

(b)Debt issuance has a floating interest rate.

(c)Debt issued to repay $1.75 billion of Duke Energy (Parent) 2021 debt maturities, to repay a portion of short-term debt and for general corporate purposes.

(d)Debt issued to repay in October 2021 $500 million of Duke Energy (Parent) unsecured notes. The interest rate resets every five years.

(e)Debt issued to repay at maturity $500 million first mortgage bonds due June 2021, pay down short-term debt and for general company purposes.

(f)Debt issued to repay at maturity a total of $600 million first mortgage bonds due September 2021, pay down short-term debt and for general company purposes.

The following table shows the significant components of Current maturities of long-term debt on the Condensed Consolidated Balance Sheets. The Duke Energy Registrants currently anticipate satisfying these obligations with cash on hand and proceeds from additional borrowings.

(in millions)	Maturity Date	Interest Rate		September 30, 2021
Unsecured Debt
Duke Energy (Parent)(a)	October 2021	5.125	%	500
Duke Energy Florida(b)	November 2021	0.372	%	200
Duke Energy Progress(b)	February 2022	0.305	%	700
Duke Energy (Parent)	March 2022	3.227	%	300
Duke Energy (Parent)(b)	March 2022	0.764	%	300
Progress Energy	April 2022	3.150	%	450
Duke Energy (Parent)	August 2022	3.050	%	500
Duke Energy (Parent)	August 2022	2.400	%	500
First Mortgage Bonds
Duke Energy Indiana	January 2022	8.850	%	53
Duke Energy Carolinas	May 2022	3.350	%	350
Duke Energy Progress	May 2022	2.800	%	500
Other(c)				520
Current maturities of long-term debt				$	4,873

(a)Junior unsecured notes due January 2073 were redeemed on October 7, 2021.

(b)Debt has a floating interest rate.

(c)Includes finance lease obligations, amortizing debt, tax-exempt bonds with mandatory put options and small bullet maturities.

Schedule Of Line Of Credit Facilities

The table below includes the current borrowing sublimits and available capacity under these credit facilities.

	September 30, 2021
			Duke		Duke		Duke		Duke		Duke		Duke
	Duke		Energy		Energy		Energy		Energy		Energy		Energy
(in millions)	Energy		(Parent)		Carolinas		Progress		Florida		Ohio		Indiana		Piedmont
Facility size(a)	$	8,000	$	2,650	$	1,275	$	1,150	$	850	$	775	$	600	$	700
Reduction to backstop issuances
Commercial paper(b)	(1,611)		389		(375)		(253)		(527)		(419)		(150)		(276)
Outstanding letters of credit	(31)		(25)		(4)		(2)		—		—		—		—
Tax-exempt bonds	(81)		—		—		—		—		—		(81)		—
Available capacity under the Master Credit Facility	$	6,277	$	3,014	$	896	$	895	$	323	$	356	$	369	$	424

(a)Represents the sublimit of each borrower.

(b)Duke Energy issued $625 million of commercial paper and loaned the proceeds through the money pool to Duke Energy Carolinas, Duke Energy Progress, Duke Energy Ohio and Duke Energy Indiana. The balances are classified as Long-Term Debt Payable to Affiliated Companies on the Condensed Consolidated Balance Sheets.

	September 30, 2021
(in millions)	Facility size		Amount drawn
Duke Energy (Parent) Three-Year Revolving Credit Facility(a)	$	1,000	$	500

(a)During March 2021, Duke Energy extended the maturity date of the Three-Year Revolving Credit Facility from May 2022 to May 2024.