Organization and Basis of Presentation (Tables)

3 Months Ended

Mar. 31, 2014

Organization And Basis Of Presentation [Line Items]

Schedule Of Unbilled Revenues With Restricted Receivables

(in millions)	March 31, 2014		December 31, 2013
Duke Energy	$	816	$	937
Duke Energy Carolinas		312		323
Progress Energy		203		189
Duke Energy Progress		120		120
Duke Energy Florida		83		69
Duke Energy Ohio		1		55
Duke Energy Indiana		28		5

Schedule of Excise Taxes

	Three Months Ended March 31,
(in millions)			2014		2013
Duke Energy		$	167	$	149
Duke Energy Carolinas			46		42
Progress Energy			77		67
Duke Energy Progress			32		28
Duke Energy Florida			45		39
Duke Energy Ohio			34		31
Duke Energy Indiana			10		9

Duke Energy Ohio [Member]

Organization And Basis Of Presentation [Line Items]

Schedule of Unbilled Revenues Sold to CRC

(in millions)	March 31, 2014		December 31, 2013
Duke Energy Ohio	$	65	$	89
Duke Energy Indiana		95		144

Duke Energy Indiana [Member]

Organization And Basis Of Presentation [Line Items]

Schedule of Unbilled Revenues Sold to CRC

(in millions)	March 31, 2014		December 31, 2013
Duke Energy Ohio	$	65	$	89
Duke Energy Indiana		95		144