Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Other Intangible Assets (Tables) [Abstract]

Changes in Carrying Amount of Goodwill

	Vertically				Generation
	Integrated		AEP River			and	AEP
	Utilities		Operations		Marketing		Consolidated
	(in millions)
Balance as of December 31, 2011	$	37	$	39	$	-	$	76
Acquired Goodwill		-		-		15		15
Impairment Losses		-		-		-		-
Balance as of December 31, 2012		37		39		15		91
Impairment Losses		-		-		-		-
Balance as of December 31, 2013	$	37	$	39	$	15	$	91

Amortization Life, Gross Carrying Amount and Accumulated Amortization by Major Asset Class

		December 31,
		2013				2012
		Gross				Gross
	Amortization	Carrying		Accumulated		Carrying		Accumulated
	Life	Amount		Amortization		Amount		Amortization
	(in years)	(in millions)
Acquired Customer Contracts	5	$	58	$	48	$	58	$	34