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Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011

Organization and Summary of Significant Accounting Policies (Tables) [Abstract]

Consolidated Assets and Liabilities of Variable Interest Entities

AMERICAN ELECTRIC POWER COMPANY, INC. AND SUBSIDIARY COMPANIES
VARIABLE INTEREST ENTITIES
December 31, 2011
(in millions)

									TCC
	SWEPCo		I&M		Protected Cell				Transition
	Sabine		DCC Fuel		of EIS		AEP Credit		Funding
ASSETS
Current Assets	$	48	$	118	$	121	$	910	$	220
Net Property, Plant and Equipment		154		188		-		-		-
Other Noncurrent Assets		42		118		6		1		1,580
Total Assets	$	244	$	424	$	127	$	911	$	1,800

LIABILITIES AND EQUITY
Current Liabilities	$	68	$	103	$	40	$	864	$	229
Noncurrent Liabilities		176		321		71		1		1,557
Equity		-		-		16		46		14
Total Liabilities and Equity	$	244	$	424	$	127	$	911	$	1,800

AMERICAN ELECTRIC POWER COMPANY, INC. AND SUBSIDIARY COMPANIES
VARIABLE INTEREST ENTITIES
December 31, 2010
(in millions)

									TCC
	SWEPCo		I&M		Protected Cell				Transition
	Sabine		DCC Fuel		of EIS		AEP Credit		Funding
ASSETS
Current Assets	$	50	$	92	$	131	$	924	$	214
Net Property, Plant and Equipment		139		173		-		-		-
Other Noncurrent Assets		34		112		1		10		1,746
Total Assets	$	223	$	377	$	132	$	934	$	1,960

LIABILITIES AND EQUITY
Current Liabilities	$	33	$	79	$	33	$	886	$	221
Noncurrent Liabilities		190		298		85		1		1,725
Equity		-		-		14		47		14
Total Liabilities and Equity	$	223	$	377	$	132	$	934	$	1,960

Target Asset Allocations

Pension Plan Assets	Target
Equity	45.0	%
Fixed Income	45.0	%
Other Investments	10.0	%

OPEB Plans Assets	Target
Equity	66.0	%
Fixed Income	33.0	%
Cash	1.0	%

Accumulated Other Comprehensive Income (Loss)(AOCI)

	December 31,
Components	2011		2010
	(in millions)
Cash Flow Hedges, Net of Tax	$	(23)	$	11
Securities Available for Sale, Net of Tax		2		4
Amortization of Pension and OPEB Deferred Costs, Net of Tax		81		57
Pension and OPEB Funded Status, Net of Tax		(530)		(453)
Total	$	(470)	$	(381)

Basic and Diluted EPS Calculations

	Years Ended December 31,
Amounts Attributable to AEP Common Shareholders	2011		2010		2009
	(in millions)
Income Before Extraordinary Items	$	1,568	$	1,211	$	1,362
Extraordinary Items, Net of Tax		373		-		(5)
Net Income	$	1,941	$	1,211	$	1,357

			Years Ended December 31,
			2011				2010				2009
			(in millions, except per share data)
					$/share				$/share				$/share
Earnings Attributable to AEP Common
	Shareholders		$	1,941			$	1,211			$	1,357

Weighted Average Number of Basic Shares
	Outstanding			482.2	$	4.02		479.4	$	2.53		458.7	$	2.96
Weighted Average Dilutive Effect of:
		Performance Share Units		-		-		0.1		-		0.3		-
		Stock Options		0.1		-		-		-		-		-
		Restricted Stock Units		0.2		-		0.1		-		-		-
Weighted Average Number of Diluted Shares
	Outstanding			482.5	$	4.02		479.6	$	2.53		459.0	$	2.96

Supplementary Information

Supplementary Information

				Years Ended December 31,
	Related Party Transactions			2011			2010			2009

				(in millions)
	AEP Consolidated Revenues – Utility Operations:
		Ohio Valley Electric Corporation (43.47% owned)		$	-		$	(20)	(a)	$	-
	AEP Consolidated Revenues – Other Revenues:
		Ohio Valley Electric Corporation – Barging and Other
			Transportation Services (43.47% Owned)		37			29			31
	AEP Consolidated Expenses – Purchased Electricity
	for Resale:
		Ohio Valley Electric Corporation (43.47% Owned)			383	(b)		302	(b)		286

(a) The AEP Power Pool purchased power from OVEC to serve off-system sales through an agreement that began in January 2010 and ended in June 2010.

(b) The AEP Power Pool purchased power from OVEC to serve retail sales in 2011 and 2010. The total amount reported in 2011 and 2010 includes $66 million and $10 million, respectively, related to these agreements.

		Years Ended December 31,
Cash Flow Information		2011		2010		2009
		(in millions)
Cash Paid (Received) for:
	Interest, Net of Capitalized Amounts	$	900	$	958	$	924
	Income Taxes		(118)		(268)		(98)
Noncash Investing and Financing Activities:
Acquisitions Under Capital Leases			54		225		86
Construction Expenditures Included in Current Liabilities at December 31,			380		267		348

Dolet Hills Lignite Co, LLC [Member]

Organization and Summary of Significant Accounting Policies (Tables) [Abstract]

Companys Investment In Joint Venture

	December 31,
	2011				2010
	As Reported on		Maximum		As Reported on		Maximum
	the Balance Sheet		Exposure		the Balance Sheet		Exposure
	(in millions)
Capital Contribution from SWEPCo	$	8	$	8	$	6	$	6
Retained Earnings		1		1		2		2
SWEPCo's Guarantee of Debt		-		52		-		48

Total Investment in DHLC	$	9	$	61	$	8	$	56

PATH West Virginia Transmission Co, LLC [Member]

Organization and Summary of Significant Accounting Policies (Tables) [Abstract]

Companys Investment In Joint Venture

	December 31,
	2011					2010
	As Reported on			Maximum		As Reported on		Maximum
	the Balance Sheet			Exposure		the Balance Sheet		Exposure
			(in millions)
Capital Contribution from AEP	$	19		$	19	$	18	$	18
Retained Earnings		10			10		6		6

Total Investment in PATH-WV	$	29		$	29	$	24	$	24

- Definition

The entire disclosure for earnings per share.

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- Definition

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 167

-Appendix D

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-Name FASB Interpretation (FIN)

-Number 46R

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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