Commitments and Contingencies (Table)

6 Months Ended

Jun. 30, 2012

Commitments And Contingencies [Abstract]

Schedule of Litigation Reserves and Related Insurance Recoveries [Table Text Block]

(in millions)		June 30, 2012		December 31, 2011
Reserves for Legal Matters(a)
Duke Energy(b)		$	792	$	810
Duke Energy Carolinas(b)			776		801
Duke Energy Indiana			8		4
Probable Insurance Recoveries(c)
Duke Energy(d)		$	813	$	813
Duke Energy Carolinas(d)			813		813
(a)	Reserves are classified in the respective Condensed Consolidated Balance Sheets in Other within Deferred Credits and Other Liabilities and Other within Current Liabilities.
(b)	Includes reserves for aforementioned asbestos-related injuries and damages claims.
(c)	Insurance recoveries are classified in the respective Condensed Consolidated Balance Sheets in Other within Investments and Other Assets and Receivables.
(d)	Relates to recoveries associated with aforementioned asbestos-related injuries and damages claims.