Organization and Basis of Presentation (Tables)

3 Months Ended

Mar. 31, 2017

Organization And Basis Of Presentation [Line Items]

Schedule Of Unbilled Revenues With Restricted Receivables

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

(in millions)	March 31, 2017		December 31, 2016
Duke Energy	$	724	$	831
Duke Energy Carolinas	296		313
Progress Energy	151		161
Duke Energy Progress	84		102
Duke Energy Florida	67		59
Duke Energy Ohio	2		2
Duke Energy Indiana	27		32
Piedmont	38		77

Schedule Of Net Income Amounts Attributable To Controlling Interests

The following table presents Net Income Attributable to Duke Energy Corporation for continuing operations and discontinued operations.

	Three Months Ended
(in millions)	March 31, 2016
Income from Continuing Operations	$	577
Income from Continuing Operations Attributable to Noncontrolling Interests	3
Income from Continuing Operations Attributable to Duke Energy Corporation	$	574
Income from Discontinued Operations, net of tax	$	122
Income from Discontinued Operations Attributable to Noncontrolling Interests, net of tax	2
Income from Discontinued Operations Attributable to Duke Energy Corporation, net of tax	$	120
Net Income	$	699
Net Income Attributable to Noncontrolling Interests	5
Net Income Attributable to Duke Energy Corporation	$	694

Schedule of Utility Inventory

The components of inventory are presented in the tables below.

	March 31, 2017
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Materials and supplies	$	2,328	$	766	$	1,122	$	780	$	341	$	85	$	315	$	2
Coal	724		248		297		162		135		17		161		—
Natural gas, oil and other fuel	314		37		233		111		123		16		2		27
Total inventory	$	3,366	$	1,051	$	1,652	$	1,053	$	599	$	118	$	478	$	29

	December 31, 2016
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Materials and supplies	$	2,374	$	767	$	1,167	$	813	$	354	$	84	$	312	$	1
Coal	774		251		314		148		166		19		190		—
Natural gas, oil and other fuel	374		37		236		115		121		34		2		65
Total inventory	$	3,522	$	1,055	$	1,717	$	1,076	$	641	$	137	$	504	$	66

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)	2017		2016
Duke Energy	$	91	$	91
Duke Energy Carolinas	9		8
Progress Energy	46		47
Duke Energy Progress	5		5
Duke Energy Florida	41		42
Duke Energy Ohio	28		28
Duke Energy Indiana	7		8
Piedmont	1		1

Duke Energy Ohio [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, 2017		December 31, 2016
Duke Energy Ohio	$	69	$	97
Duke Energy Indiana	106		123

Duke Energy Indiana [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, 2017		December 31, 2016
Duke Energy Ohio	$	69	$	97
Duke Energy Indiana	106		123