Organization and Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 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 June 30,				Six Months Ended June 30,
(in millions)	2016		2015		2016		2015
Duke Energy	$	87	$	97	$	178	$	197
Duke Energy Carolinas	7		9		15		18
Progress Energy	50		57		96		106
Duke Energy Progress	4		4		9		8
Duke Energy Florida	46		53		87		98
Duke Energy Ohio	22		23		51		55
Duke Energy Indiana	8		8		16		18

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 Receivables of variable interest entities (VIEs) on the Condensed Consolidated Balance Sheets, are presented in the following table.

(in millions)	June 30, 2016		December 31, 2015
Duke Energy	$	840	$	748
Duke Energy Carolinas	330		283
Progress Energy	209		172
Duke Energy Progress	104		102
Duke Energy Florida	105		70
Duke Energy Ohio	2		3
Duke Energy Indiana	38		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)	June 30, 2016		December 31, 2015
Duke Energy Ohio	$	70	$	71
Duke Energy Indiana	109		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)	June 30, 2016		December 31, 2015
Duke Energy Ohio	$	70	$	71
Duke Energy Indiana	109		97