Organization and Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2015

Organization And Basis Of Presentation [Line Items]

Amounts Attributable to Controlling Interests [Table Text Block]

The following table presents Net Income Attributable to Duke Energy Corporation for continuing operations and discontinued operations for the three and nine months ended September 30, 2014.

	Three Months Ended					Nine Months Ended
	September 30, 2014					September 30, 2014
	Duke			Progress		Duke			Progress
(in millions)	Energy			Energy		Energy			Energy
Income From Continuing Operations	$	891		$	330	$	2,367		$	741
Income From Continuing Operations Attributable to Noncontrolling Interests	3			1		11			2
Income From Continuing Operations Attributable to Duke Energy Corporation	$	888		$	329	$	2,356		$	739
Income (Loss) From Discontinued Operations, net of tax	$	378		$	—	$	(578	)	$	(6	)
Loss From Discontinued Operations Attributable to Noncontrolling Interests, net of tax	(8		)	—		(8		)	—
Income (Loss) From Discontinued Operations Attributable to Duke Energy Corporation, net of tax	$	386		$	—	$	(570	)	$	(6	)
Net income	$	1,269		$	330	$	1,789		$	735
Net (Loss) Income Attributable to Noncontrolling Interests	(5		)	1		3			2
Net Income Attributable to Duke Energy Corporation	$	1,274		$	329	$	1,786		$	733

Schedule of Excise Taxes

Excise taxes recognized on a gross basis are recorded as Operating Revenues and Property and other taxes on the Condensed Consolidated Statements of Operations. The following table provides the amount of excise taxes accounted for on a gross basis.

	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2015		2014		2015		2014
Duke Energy	$	109	$	101	$	308	$	416
Duke Energy Carolinas	9		4		27		93
Progress Energy	67		63		174		214
Duke Energy Progress	4		—		12		56
Duke Energy Florida	63		63		162		158
Duke Energy Ohio	24		24		80		80
Duke Energy Indiana	9		10		27		29

Unbilled Revenues [Member]

Organization And Basis Of Presentation [Line Items]

Schedule Of Unbilled Revenues With Restricted Receivables

Unbilled revenues are included within Receivables and Restricted receivables of variable interest entities on the Condensed Consolidated Balance Sheets as shown in the following table.

(in millions)	September 30, 2015		December 31, 2014
Duke Energy	$	748	$	827
Duke Energy Carolinas	247		295
Progress Energy	220		217
Duke Energy Progress	123		135
Duke Energy Florida	97		82
Duke Energy Ohio	6		—
Duke Energy Indiana	25		27

Duke Energy Ohio [Member] | Unbilled Revenues [Member]

Organization And Basis Of Presentation [Line Items]

Schedule Of Unbilled Revenues With Restricted Receivables

These receivables for unbilled revenues are shown in the table below.

(in millions)	September 30, 2015		December 31, 2014
Duke Energy Ohio	$	64	$	79
Duke Energy Indiana	93		112

Duke Energy Indiana [Member] | Unbilled Revenues [Member]

Organization And Basis Of Presentation [Line Items]

Schedule Of Unbilled Revenues With Restricted Receivables

These receivables for unbilled revenues are shown in the table below.

(in millions)	September 30, 2015		December 31, 2014
Duke Energy Ohio	$	64	$	79
Duke Energy Indiana	93		112