Variable Interest Entities (Tables)

12 Months Ended

Dec. 31, 2017

Variable Interest Entity, Primary Beneficiary [Member]

Variable Interest Entity [Line Items]

The following table outlines amounts and expiration dates of the credit facilities described above.



	Duke Energy
			Duke Energy		Duke Energy		Duke Energy
			Carolinas		Progress		Florida
	CRC		DERF		DEPR		DEFR
Expiration date	December 2020		December 2020		February 2019		April 2019
Credit facility amount (in millions)	$	325	$	450	$	300	$	225
Amounts borrowed at December 31, 2017	325		450		300		225
Amounts borrowed at December 31, 2016	325		425		300		225

Variable Interest Entity, Not Primary Beneficiary [Member]

Variable Interest Entity [Line Items]

Schedule Of Variable Interest Entities

The following tables summarize the impact of non-consolidated VIEs on the Consolidated Balance Sheets.



	December 31, 2017
	Duke Energy										Duke		Duke
	Pipeline			Commercial		Other					Energy		Energy
(in millions)	Investments			Renewables		VIEs^(a)		Total			Ohio		Indiana
Receivables from affiliated companies	$	—		$	—	$	—	$	—		$	87	$	106
Investments in equity method unconsolidated affiliates	697			180		42		919			—		—
Other noncurrent assets	17			—		—		17			—		—
Total assets	$	714		$	180	$	42	$	936		$	87	$	106
Taxes accrued	(29		)	—		—		(29		)	—		—
Other current liabilities	—			—		4		4			—		—
Deferred income taxes	42			—		—		42			—		—
Other noncurrent liabilities	—			—		12		12			—		—
Total liabilities	$	13		$	—	$	16	$	29		$	—	$	—
Net assets	$	701		$	180	$	26	$	907		$	87	$	106

(a)

Duke Energy holds a 50 percent equity interest in Duke-American Transmission Company, LLC (DATC). As of December 31, 2016, DATC was considered a VIE due to having insufficient equity to finance its own activities without subordinated financial support. However, DATC is no longer considered a VIE based on sufficient equity to finance its own activities, and, therefore, is no longer considered a VIE as of December 31, 2017. Duke Energy's investment in DATC was $46 million at December 31, 2017.



	December 31, 2016
	Duke Energy								Duke		Duke
	Pipeline		Commercial						Energy		Energy
(in millions)	Investments		Renewables		Other		Total		Ohio		Indiana		Piedmont ^(a)
Receivables from affiliated companies	$	—	$	—	$	—	$	—	$	82	$	101	$	—
Investments in equity method unconsolidated affiliates	487		174		90		751		—		—		139
Other noncurrent assets	12		—		—		12		—		—		—
Total assets	$	499	$	174	$	90	$	763	$	82	$	101	$	139
Other current liabilities	—		—		3		3		—		—		—
Other noncurrent liabilities	—		—		13		13		—		—		4
Total liabilities	$	—	$	—	$	16	$	16	$	—	$	—	$	4
Net assets	$	499	$	174	$	74	$	747	$	82	$	101	$	135


(a)	In April 2017, Piedmont transferred its non-consolidated VIE investments to a wholly owned subsidiary of Duke Energy. See Note 12 and the "Pipeline Investments" section below for additional detail.

DEFPF [Member] | Variable Interest Entity, Primary Beneficiary [Member]

Variable Interest Entity [Line Items]

Schedule Of Variable Interest Entities

The following table summarizes the impact of DEFPF on Duke Energy Florida's Consolidated Balance Sheets.



(in millions)	December 31, 2017		December 31, 2016
Receivables of VIEs	$	4	$	6
Regulatory Assets: Current	51		50
Current Assets: Other	40		53
Other Noncurrent Assets: Regulatory assets	1,091		1,142
Current Liabilities: Other	10		17
Current maturities of long-term debt	53		62
Long-Term Debt	1,164		1,217

Commercial Renewables [Member] | Variable Interest Entity, Primary Beneficiary [Member]

Variable Interest Entity [Line Items]

Schedule Of Variable Interest Entities

Duke Energy consolidates the entities as it is responsible for all of these decisions.

The table below presents material balances reported on Duke Energy's Consolidated Balance Sheets related to renewables VIEs.



(in millions)	December 31, 2017			December 31, 2016
Current Assets: Other	$	174		$	223
Property, plant and equipment, cost	3,923			3,419
Accumulated depreciation and amortization	(591		)	(453		)
Current maturities of long-term debt	170			198
Long-Term Debt	1,700			1,097
Other Noncurrent Liabilities: Deferred income taxes	(148		)	275
Other Noncurrent Liabilities: Other	241			252

Pipeline Investments [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]

Variable Interest Entity [Line Items]

Schedule Of Variable Interest Entities

The table below presents Duke Energy's ownership interest and investment balance in in these joint ventures.



			Investment Amount (in millions)
	Ownership		December 31,		December 31,
Entity Name	Interest		2017		2016
ACP	47	%	$	397	$	265
Sabal Trail	7.5	%	219		140
Constitution	24	%	81		82
Total			$	697	$	487

Cinergy Receivables [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]

Variable Interest Entity [Line Items]

Schedule Of Variable Interest Entities

Key assumptions used in estimating fair value are detailed in the following table.



	Duke Energy Ohio				Duke Energy Indiana
	2017		2016		2017		2016
Anticipated credit loss ratio	0.5	%	0.5	%	0.3	%	0.3	%
Discount rate	2.1	%	1.5	%	2.1	%	1.5	%
Receivable turnover rate	13.5	%	13.3	%	10.7	%	10.6	%

The following table shows the gross and net receivables sold.



	Duke Energy Ohio				Duke Energy Indiana
(in millions)	2017		2016		2017		2016
Receivables sold	$	273	$	267	$	312	$	306
Less: Retained interests	87		82		106		101
Net receivables sold	$	186	$	185	$	206	$	205

The following table shows sales and cash flows related to receivables sold.



	Duke Energy Ohio						Duke Energy Indiana
	Years Ended December 31,						Years Ended December 31,
(in millions)	2017		2016		2015		2017		2016		2015
Sales
Receivables sold	$	1,879	$	1,926	$	1,963	$	2,711	$	2,635	$	2,627
Loss recognized on sale	10		9		9		12		11		11
Cash Flows
Cash proceeds from receivables sold	1,865		1,882		1,995		2,694		2,583		2,670
Collection fees received	1		1		1		1		1		1
Return received on retained interests	3		2		3		7		5		5

- Definition

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

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