Debt and Credit Facilities (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

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

				Nine Months Ended September 30, 2016
						Duke		Duke		Duke		Duke		Duke		Duke
	Maturity	Interest		Duke		Energy		Energy		Energy		Energy		Energy		Energy
Issuance Date	Date	Rate		Energy		(Parent)		Carolinas		Progress		Florida		Ohio		Indiana
Unsecured
April 2016(a)	April 2023	2.875	%	$	350	$	350	$	—	$	—	$	—	$	—	$	—
August 2016	September 2021	1.800	%	750		750		—		—		—		—		—
August 2016	September 2026	2.650	%	1,500		1,500		—		—		—		—		—
August 2016	September 2046	3.750	%	1,500		1,500		—		—		—		—		—
First Mortgage Bonds
March 2016(b)	March 2023	2.500	%	500		—		500		—		—		—		—
March 2016(b)	March 2046	3.875	%	500		—		500		—		—		—		—
May 2016(c)	May 2046	3.750	%	500		—		—		—		—		—		500
June 2016(b)	June 2046	3.700	%	250		—		—		—		—		250		—
September 2016(d)	October 2046	3.400	%	600		—		—		—		600		—		—
September 2016(b)	October 2046	3.700	%	450		—		—		450		—		—		—
Secured Debt
June 2016(e)	March 2020	1.196	%	183		—		—		—		183		—		—
June 2016(e)	September 2022	1.731	%	150		—		—		—		150		—		—
June 2016(e)	September 2029	2.538	%	436		—		—		—		436		—		—
June 2016(e)	March 2033	2.858	%	250		—		—		—		250		—		—
June 2016(e)	September 2036	3.112	%	275		—		—		—		275		—		—
August 2016	June 2034	2.747	%	228		—		—		—		—		—		—
August 2016	June 2020	2.747	%	105		—		—		—		—		—		—
Total issuances				$	8,527	$	4,100	$	1,000	$	450	$	1,894	$	250	$	500

(a) Proceeds were used to pay down outstanding commercial paper and for general corporate purposes.

(b) Proceeds were used to fund capital expenditures for ongoing construction, capital maintenance and for general corporate purposes.

(c) Proceeds were used to repay $325 million of unsecured debt due June 2016, $150 million of first mortgage bonds due July 2016 and for general corporate purposes.

(d) Proceeds were used to fund capital expenditures for ongoing construction, capital maintenance, to repay short-term borrowings under the intercompany money pool borrowing arrangement and for general corporate purposes.

(e) The nuclear asset-recovery bonds are sequential pay amortizing bonds. The maturity date above represents the scheduled final maturity date for the bonds.

Schedule Of Debt

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, 2016
Unsecured Debt
Duke Energy (Parent)	November 2016	2.150	%	$	500
Duke Energy (Parent)	April 2017	1.034	%	400
Duke Energy(a)	May 2017	15.681	%	56
Duke Energy (Parent)	August 2017	1.625	%	700
Secured Debt
Duke Energy	June 2017	2.155	%	45
First Mortgage Bonds
Duke Energy Carolinas	December 2016	1.750	%	350
Duke Energy Progress	March 2017	1.035	%	250
Duke Energy Florida	September 2017	5.800	%	250
Tax-exempt Bonds
Duke Energy Carolinas	February 2017	3.600	%	77
Other(b)				573
Current maturities of long-term debt				$	3,201

(a) The interest rate includes country-specific risk premiums.

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

Schedule Of Line Of Credit Facilities

Duke Energy has a Master Credit Facility with a capacity of $7.5 billion through January 2020. The Duke Energy Registrants, excluding Progress Energy (Parent), have borrowing capacity under the Master Credit Facility up to a specified sublimit for each borrower. Duke Energy has the unilateral ability at any time to increase or decrease the borrowing sublimits of each borrower, subject to a maximum sublimit for each borrower. The amount available under the Master Credit Facility has been reduced to backstop issuances of commercial paper, certain letters of credit and variable-rate demand tax-exempt bonds that may be put to the Duke Energy Registrants at the option of the holder. Duke Energy Carolinas and Duke Energy Progress are also required to each maintain $250 million of available capacity under the Master Credit Facility as security to meet obligations under plea agreements reached with the U.S. Department of Justice in 2015 related to violations at North Carolina facilities with ash basins. The table below includes the current borrowing sublimits and available capacity under the Master Credit Facility.

	September 30, 2016
				Duke			Duke			Duke			Duke			Duke			Duke
	Duke			Energy			Energy			Energy			Energy			Energy			Energy
(in millions)	Energy			(Parent)			Carolinas			Progress			Florida			Ohio			Indiana
Facility size(a)	$	7,500		$	3,400		$	1,100		$	1,000		$	950		$	450		$	600
Reduction to backstop issuances
Commercial paper(b)	(1,652		)	(1,027		)	(300		)	(150		)	—			(25		)	(150		)
Outstanding letters of credit	(77		)	(70		)	(4		)	(2		)	(1		)	—			—
Tax-exempt bonds	(116		)	—			(35		)	—			—			—			(81		)
Coal ash set-aside	(500		)	—			(250		)	(250		)	—			—			—
Available capacity	$	5,155		$	2,303		$	511		$	598		$	949		$	425		$	369

(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 in the Condensed Consolidated Balance Sheets.