Debt and Credit Facilities (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

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, 2018
Unsecured Debt
Progress Energy	March 2019	7.050	%		$	450
Duke Energy (Parent)	September 2019	5.050	%		500
Piedmont	September 2019	2.848	%	(b)	350
First Mortgage Bonds
Duke Energy Carolinas	November 2018	7.000	%		500
Duke Energy Progress	January 2019	5.300	%		600
Duke Energy Ohio	April 2019	5.450	%		450
Other(a)					605
Current maturities of long-term debt					$	3,455

(a)    Includes capital lease obligations, amortizing debt and small bullet maturities.

(b)    Debt issuance has a floating interest rate.

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

				Nine Months Ended September 30, 2018
						Duke		Duke		Duke		Duke
	Maturity	Interest		Duke		Energy		Energy		Energy		Energy
Issuance Date	Date	Rate		Energy		(Parent)		Carolinas		Progress		Florida
Unsecured Debt
March 2018(a)	April 2025	3.950	%	$	250	$	250	$	—	$	—	$	—
May 2018(b)	May 2021	2.819	%	500		500		—		—		—
September 2018(c)	September 2078	5.625	%	500		500		—		—		—
First Mortgage Bonds
March 2018(d)	March 2023	3.050	%	500		—		500		—		—
March 2018(d)	March 2048	3.950	%	500		—		500		—		—
June 2018(e)	July 2028	3.800	%	600		—		—		—		600
June 2018(e)	July 2048	4.200	%	400		—		—		—		400
August 2018(f)	September 2023	3.375	%	300		—		—		300		—
August 2018(f)	September 2028	3.700	%	500		—		—		500		—
Total issuances				$	4,050	$	1,250	$	1,000	$	800	$	1,000

(a) Debt issued to pay down short-term debt.

(b) Debt issued to pay down short-term debt. Debt issuance has a floating interest rate.

(c) Callable after September 2023 at par. Debt issued to pay down short-term debt and for general corporate purposes.

(d) Debt issued to repay at maturity a $300 million first mortgage bond due April 2018, pay down intercompany short-term debt and for general corporate purposes.

(e) Debt issued to repay a portion of intercompany short-term debt under money-pool borrowing arrangement and for general corporate purposes.

(f) Debt issued to repay short-term debt and for general corporate purposes.

Schedule Of Line Of Credit Facilities

The table below includes the current borrowing sublimits and available capacity under the Master Credit Facility.

	September 30, 2018
				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		$	1,750		$	1,400		$	650	$	450		$	600		$	500
Reduction to backstop issuances
Commercial paper(b)	(2,519		)	(988		)	(872		)	(150		)	—		(216		)	(293		)	—
Outstanding letters of credit	(55		)	(47		)	(4		)	(2		)	—		—			—			(2		)
Tax-exempt bonds	(81		)	—			—			—			—		—			(81		)	—
Coal ash set-aside	(500		)	—			(250		)	(250		)	—		—			—			—
Available capacity under the Master Credit Facility	$	4,845		$	1,615		$	624		$	998		$	650	$	234		$	226		$	498

(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.