Organization and Basis of Presentation (Tables)

3 Months Ended

Mar. 31, 2016

Organization And Basis Of Presentation [Line Items]

Schedule of Excise Taxes

Excise taxes accounted for on a gross basis as both operating revenues and property and other taxes on the Condensed Consolidated Statements of Operations were as follows.

	Three Months Ended March 31,
(in millions)	2016		2015
Duke Energy	$	91	$	100
Duke Energy Carolinas	8		9
Progress Energy	47		49
Duke Energy Progress	5		4
Duke Energy Florida	42		45
Duke Energy Ohio	28		32
Duke Energy Indiana	8		10

Unbilled Revenues [Member]

Organization And Basis Of Presentation [Line Items]

Schedule Of Unbilled Revenues With Restricted Receivables

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

(in millions)	March 31, 2016		December 31, 2015
Duke Energy	$	715	$	748
Duke Energy Carolinas	288		283
Progress Energy	158		172
Duke Energy Progress	85		102
Duke Energy Florida	73		70
Duke Energy Ohio	2		3
Duke Energy Indiana	33		31

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)	March 31, 2016		December 31, 2015
Duke Energy Ohio	$	61	$	71
Duke Energy Indiana	88		97

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)	March 31, 2016		December 31, 2015
Duke Energy Ohio	$	61	$	71
Duke Energy Indiana	88		97