Organization And Basis Of Presentation (Tables)

3 Months Ended

Mar. 31, 2013

Organization And Basis Of Presentation [Line Items]

Schedule Of Unbilled Revenues With Restricted Receivables

(in millions)	March 31, 2013		December 31, 2012
Duke Energy	$	899	$	920
Duke Energy Carolinas		314		315
Progress Energy		193		187
Duke Energy Progress		115		112
Duke Energy Florida		78		74
Duke Energy Ohio		49		47
Duke Energy Indiana		3		3

Schedule of Net Income Amounts Attributable to Controlling Interests

(in millions)		Duke Energy		Progress Energy
Net Income Amounts Attributable to Controlling Interests
Three Months Ended March 31, 2013
Income from continuing operations, net of tax / Net income attributable to controlling interests		$	634	$	153
Three Months Ended March 31, 2012
Income from continuing operations, net of tax		$	293	$	139
Discontinued operations, net of tax			2		11
	Net income attributable to controlling interests	$	295	$	150

Progress Energy [Member]

Organization And Basis Of Presentation [Line Items]

Schedule of Net Income Amounts Attributable to Controlling Interests

(in millions)		Duke Energy		Progress Energy
Net Income Amounts Attributable to Controlling Interests
Three Months Ended March 31, 2013
Income from continuing operations, net of tax / Net income attributable to controlling interests		$	634	$	153
Three Months Ended March 31, 2012
Income from continuing operations, net of tax		$	293	$	139
Discontinued operations, net of tax			2		11
	Net income attributable to controlling interests	$	295	$	150

Duke Energy Ohio [Member]

Organization And Basis Of Presentation [Line Items]

Schedule of Unbilled Revenues Sold to CRC

(in millions)	March 31, 2013		December 31, 2012
Duke Energy Ohio	$	74	$	90
Duke Energy Indiana		122		132

Duke Energy Indiana [Member]

Organization And Basis Of Presentation [Line Items]

Schedule of Unbilled Revenues Sold to CRC

(in millions)	March 31, 2013		December 31, 2012
Duke Energy Ohio	$	74	$	90
Duke Energy Indiana		122		132