Debt and Credit Facilities (Tables)

6 Months Ended

Jun. 30, 2016

Debt Disclosure [Abstract]

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

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

				Six Months Ended
				June 30, 2016
						Duke		Duke		Duke		Duke		Duke
	Maturity	Interest		Duke		Energy		Energy		Energy		Energy		Energy
Issuance Date	Date	Rate		Energy		(Parent)		Carolinas		Florida		Ohio		Indiana
Unsecured
April 2016(a)	April 2023	2.875	%	$	350	$	350	$	—	$	—	$	—	$	—
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		—
Secured Debt
June 2016(d)	March 2020	1.196	%	183		—		—		183		—		—
June 2016(d)	September 2022	1.731	%	150		—		—		150		—		—
June 2016(d)	September 2029	2.538	%	436		—		—		436		—		—
June 2016(d)	March 2033	2.858	%	250		—		—		250		—		—
June 2016(d)	September 2036	3.112	%	275		—		—		275		—		—
Total issuances				$	3,394	$	350	$	1,000	$	1,294	$	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 from the nuclear asset recovery bonds issued by DEFPF, a bankruptcy remote subsidiary of Duke Energy Florida, were used to acquire nuclear asset-recovery property from its parent, Duke Energy Florida. The nuclear asset-recovery bonds are payable only from and secured by the nuclear asset-recovery property. DEFPF is consolidated for financial reporting purposes; however, the nuclear asset-recovery bonds do not constitute a debt, liability or other legal obligation of, or interest in, Duke Energy Florida or any of its affiliates other than DEFPF. The assets of DEFPF, including the nuclear asset-recovery property, are not available to pay creditors of Duke Energy Florida or any of its affiliates. Duke Energy Florida used the proceeds from the sale to repay short-term borrowings under the intercompany money pool borrowing arrangement and make an equity distribution of $649 million to the ultimate parent, Duke Energy (Parent), which repaid short-term borrowings. The nuclear asset-recovery bonds are sequential pay amortizing bonds. The maturity date above represents the scheduled final maturity date for the bonds. See Notes 4 and 12 for additional information.

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		June 30, 2016
Unsecured Debt
Duke Energy (Parent)	November 2016	2.150	%	$	500
Duke Energy (Parent)	April 2017	1.009	%	400
Duke Energy	May 2017	15.530	%	56
Secured Debt
Duke Energy	June 2017	2.075	%	45
First Mortgage Bonds
Duke Energy Indiana	July 2016	0.979	%	150
Duke Energy Carolinas	December 2016	1.750	%	350
Duke Energy Progress	March 2017	0.880	%	250
Tax-exempt Bonds
Duke Energy Carolinas	February 2017	3.600	%	77
Duke Energy Ohio(a)	August 2027	1.280	%	50
Duke Energy Indiana(b)	May 2035	1.092	%	44
Other(c)				420
Current maturities of long-term debt				$	2,342

(a) Represents Duke Energy Kentucky's bonds with a mandatory put in December 2016.

(b) The bonds have a mandatory put in December 2016.

(c) 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.

	June 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		$	3,475		$	800		$	1,000		$	1,200		$	425		$	600
Reduction to backstop issuances
Commercial paper(b)	(1,673		)	(992		)	(300		)	(159		)	(47		)	(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	$	5,134		$	2,413		$	211		$	589		$	1,152		$	400		$	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.