Business Segments (Tables)

3 Months Ended

Mar. 31, 2014

Business Segments (Tables) [Abstract]

Reportable Segment Information

					Transmission
		Vertically			and		AEP		Generation					Corporate
		Integrated			Distribution		Transmission		&			AEP River		and Other		Reconciling
		Utilities			Utilities		Holdco		Marketing			Operations		(a)		Adjustments			Consolidated
		(in millions)
Three Months Ended March 31, 2014
Revenues from:
	External Customers	$	2,549	(b)	$	1,161	$	12	$	821	(b)	$	146	$	10	$	(51)	(c)	$	4,648
	Other Operating Segments		37	(b)		54		16		430	(b)		19		16		(572)			-
Total Revenues		$	2,586		$	1,215	$	28	$	1,251		$	165	$	26	$	(623)		$	4,648
Net Income (Loss)		$	279		$	97	$	24	$	163		$	3	$	(5)	$	-		$	561
					Transmission
		Vertically			and		AEP		Generation					Corporate
		Integrated			Distribution		Transmission		&			AEP River		and Other		Reconciling
		Utilities			Utilities		Holdco		Marketing			Operations		(a)		Adjustments			Consolidated
		(in millions)
Three Months Ended March 31, 2013
Revenues from:
	External Customers	$	2,356		$	1,090	$	3	$	258		$	128	$	5	$	(14)	(c)	$	3,826
	Other Operating Segments		159			44		5		662			5		13		(888)			-
Total Revenues		$	2,515		$	1,134	$	8	$	920		$	133	$	18	$	(902)		$	3,826
Net Income (Loss)		$	181		$	87	$	12	$	85		$	(2)	$	1	$	-		$	364

				Transmission
		Vertically		and		AEP		Generation				Corporate		Reconciling
		Integrated		Distribution		Transmission		&		AEP River		and Other		Adjustments
		Utilities		Utilities		Holdco		Marketing		Operations		(a)		(d)			Consolidated
		(in millions)
March 31, 2014
Total Property, Plant and Equipment		$	37,923	$	12,339	$	1,842	$	8,302	$	639	$	321	$	(272)		$	61,094
Accumulated Depreciation and
	Amortization		12,424		3,382		13		3,460		197		176		(88)			19,564
Total Property, Plant and
	Equipment - Net	$	25,499	$	8,957	$	1,829	$	4,842	$	442	$	145	$	(184)		$	41,530
Total Assets		$	32,997	$	13,899	$	2,460	$	6,354	$	659	$	20,275	$	(19,606)	(e)	$	57,038
				Transmission
		Vertically		and		AEP		Generation				Corporate		Reconciling
		Integrated		Distribution		Transmission		&		AEP River		and Other		Adjustments
		Utilities		Utilities		Holdco		Marketing		Operations		(a)		(d)			Consolidated
		(in millions)
December 31, 2013
Total Property, Plant and Equipment		$	37,545	$	12,143	$	1,636	$	8,277	$	638	$	315	$	(269)		$	60,285
Accumulated Depreciation and
	Amortization		12,250		3,342		10		3,409		189		173		(85)			19,288
Total Property, Plant and
	Equipment - Net	$	25,295	$	8,801	$	1,626	$	4,868	$	449	$	142	$	(184)		$	40,997
Total Assets		$	32,791	$	14,165	$	2,245	$	6,426	$	673	$	19,645	$	(19,531)	(e)	$	56,414

(a)Corporate and Otherprimarily includes management and professional services to AEP provided at cost to AEP subsidiaries and the purchasing of receivables from certain AEP utility subsidiaries. This segment also includes Parent's guarantee revenue received from affiliates, investment income, interest income and interest expense and other nonallocated costs.

(b)Includes the impact of the corporate separation of OPCo's generation assets and liabilities that took effect December 31, 2013, as well as the impact of the termination of the Interconnection Agreement effective January 1, 2014.

(c)Reconciling Adjustments for External Customers primarily include eliminations as a result of corporate separation.

(d)Includes eliminations due to an intercompany capital lease.

(e)Reconciling Adjustments for Total Assets primarily include the elimination of intercompany advances to affiliates and intercompany accounts receivable along with the elimination of AEP's investments in subsidiary companies.