Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2014		Dec. 31, 2013
Current Assets
Cash and Cash Equivalents	$ 194,000,000		$ 118,000,000
Other Temporary Investments	318,000,000		353,000,000
Accounts Receivable:
Customers	671,000,000		746,000,000
Accrued Unbilled Revenues	107,000,000		157,000,000
Pledged Accounts Receivable - AEP Credit	1,013,000,000		945,000,000
Miscellaneous	83,000,000		72,000,000
Allowance for Uncollectible Accounts	(19,000,000)		(60,000,000)
Total Accounts Receivable	1,855,000,000		1,860,000,000
Fuel	472,000,000		701,000,000
Materials and Supplies	733,000,000		722,000,000
Risk Management Assets	135,000,000		160,000,000
Regulatory Asset for Under-Recovered Fuel Costs	145,000,000		80,000,000
Margin Deposits	82,000,000		70,000,000
Prepayments and Other Current Assets	177,000,000		246,000,000
TOTAL CURRENT ASSETS	4,111,000,000		4,310,000,000
Property, Plant and Equipment
Generation	25,565,000,000		25,074,000,000
Transmission	11,649,000,000		10,893,000,000
Distribution	16,938,000,000		16,377,000,000
Other Property, Plant and Equipment	5,688,000,000		5,470,000,000
Construction Work in Progress	3,283,000,000		2,471,000,000
Total Property, Plant and Equipment	63,123,000,000		60,285,000,000
Accumulated Depreciation and Amortization	20,059,000,000		19,288,000,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	43,064,000,000		40,997,000,000
Other Noncurrent Assets
Regulatory Assets	4,308,000,000		4,376,000,000
Securitized Assets	2,159,000,000		2,373,000,000
Spent Nuclear Fuel and Decommissioning Trusts	2,020,000,000		1,932,000,000
Goodwill	91,000,000		91,000,000
Long-term Risk Management Assets	228,000,000		297,000,000
Deferred Charges and Other Noncurrent Assets	1,944,000,000		2,038,000,000
TOTAL OTHER NONCURRENT ASSETS	10,750,000,000		11,107,000,000
TOTAL ASSETS	57,925,000,000		56,414,000,000
Current Liabilities
Accounts Payable	1,259,000,000		1,266,000,000
Short-term Debt:
Securitized Debt for Receivables - AEP Credit	750,000,000	[1]	700,000,000	[1]
Other Short-term Debt	532,000,000		57,000,000
Total Short-term Debt	1,282,000,000		757,000,000
Long-term Debt Due Within One Year	2,381,000,000		1,549,000,000
Long-term Debt Due Within One Year - Affiliated	0		0
Risk Management Liabilities	60,000,000		90,000,000
Customer Deposits	315,000,000		299,000,000
Accrued Taxes	769,000,000		822,000,000
Accrued Interest	219,000,000		245,000,000
Regulatory Liability for Over-Recovered Fuel Costs	53,000,000		119,000,000
Other Current Liabilities	1,119,000,000		965,000,000
TOTAL CURRENT LIABILITIES	7,457,000,000		6,112,000,000
Noncurrent Liabilities
Long-term Debt	15,677,000,000		16,828,000,000
Long-term Debt - Affiliated	0		0
Long-term Risk Management Liabilities	120,000,000		177,000,000
Deferred Income Taxes	10,506,000,000		10,300,000,000
Regulatory Liabilities and Deferred Investment Tax Credits	3,837,000,000		3,694,000,000
Asset Retirement Obligations	1,923,000,000		1,835,000,000
Employee Benefits and Pension Obligations	414,000,000		415,000,000
Deferred Credits and Other Noncurrent Liabilities	1,119,000,000		967,000,000
TOTAL NONCURRENT LIABILITIES	33,596,000,000		34,216,000,000
TOTAL LIABILITIES	41,053,000,000		40,328,000,000
Rate Matters
Commitments and Contingencies
Equity
Common Stock	3,312,000,000		3,303,000,000
Paid-in Capital	6,191,000,000		6,131,000,000
Retained Earnings	7,470,000,000		6,766,000,000
Accumulated Other Comprehensive Income (Loss)	(105,000,000)		(115,000,000)
TOTAL COMMON SHAREHOLDER'S EQUITY	16,868,000,000		16,085,000,000
Noncontrolling Interests	4,000,000		1,000,000
TOTAL EQUITY	16,872,000,000		16,086,000,000
TOTAL LIABILITIES AND EQUITY	57,925,000,000		56,414,000,000
Appalachian Power Co [Member]
Current Assets
Cash and Cash Equivalents	2,701,000		2,745,000
Advances to Affiliates	70,090,000		92,485,000
Accounts Receivable:
Customers	95,688,000		142,010,000
Affiliated Companies	60,436,000		113,793,000
Accrued Unbilled Revenues	38,861,000		55,930,000
Miscellaneous	778,000		412,000
Allowance for Uncollectible Accounts	(1,945,000)		(2,443,000)
Total Accounts Receivable	193,818,000		309,702,000
Fuel	111,120,000		191,811,000
Materials and Supplies	130,557,000		128,843,000
Risk Management Assets	21,819,000		21,171,000
Regulatory Asset for Under-Recovered Fuel Costs	68,782,000		39,811,000
Prepayments and Other Current Assets	25,048,000		16,472,000
TOTAL CURRENT ASSETS	623,935,000		803,040,000
Property, Plant and Equipment
Generation	6,828,543,000		6,745,172,000
Transmission	2,200,241,000		2,160,660,000
Distribution	3,218,405,000		3,139,150,000
Other Property, Plant and Equipment	374,940,000		357,517,000
Construction Work in Progress	253,928,000		184,701,000
Total Property, Plant and Equipment	12,876,057,000		12,587,200,000
Accumulated Depreciation and Amortization	3,797,663,000		3,617,990,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	9,078,394,000		8,969,210,000
Other Noncurrent Assets
Regulatory Assets	1,003,018,000		1,003,890,000
Securitized Assets	355,561,000		369,355,000
Long-term Risk Management Assets	6,501,000		16,948,000
Deferred Charges and Other Noncurrent Assets	133,058,000		148,205,000
TOTAL OTHER NONCURRENT ASSETS	1,498,138,000		1,538,398,000
TOTAL ASSETS	11,200,467,000		11,310,648,000
Current Liabilities
Accounts Payable	159,067,000		169,184,000
Affiliated Companies	71,302,000		120,789,000
Short-term Debt:
Long-term Debt Due Within One Year	652,211,000		342,360,000
Long-term Debt Due Within One Year - Affiliated	86,000,000		0
Risk Management Liabilities	6,371,000		8,892,000
Customer Deposits	66,923,000		66,040,000
Deferred Income Taxes	40,072,000		6,899,000
Accrued Taxes	61,316,000		114,699,000
Accrued Interest	63,519,000		51,899,000
Regulatory Liability for Over-Recovered Fuel Costs	13,696,000		107,048,000
Other Current Liabilities	94,732,000		97,566,000
TOTAL CURRENT LIABILITIES	1,315,209,000		1,085,376,000
Noncurrent Liabilities
Long-term Debt	3,241,896,000		3,765,997,000
Long-term Debt - Affiliated	0		86,000,000
Long-term Risk Management Liabilities	3,293,000		10,241,000
Deferred Income Taxes	2,334,399,000		2,232,441,000
Regulatory Liabilities and Deferred Investment Tax Credits	676,480,000		631,225,000
Employee Benefits and Pension Obligations	101,613,000		82,264,000
Deferred Credits and Other Noncurrent Liabilities	171,706,000		187,672,000
TOTAL NONCURRENT LIABILITIES	6,529,387,000		6,995,840,000
TOTAL LIABILITIES	7,844,596,000		8,081,216,000
Rate Matters
Commitments and Contingencies
Equity
Common Stock	260,458,000		260,458,000
Paid-in Capital	1,809,562,000		1,809,562,000
Retained Earnings	1,283,317,000		1,156,461,000
Accumulated Other Comprehensive Income (Loss)	2,534,000		2,951,000
TOTAL EQUITY	3,355,871,000		3,229,432,000
TOTAL LIABILITIES AND EQUITY	11,200,467,000		11,310,648,000
Indiana Michigan Power Co [Member]
Current Assets
Cash and Cash Equivalents	1,418,000		1,317,000
Advances to Affiliates	13,499,000		55,863,000
Accounts Receivable:
Customers	40,579,000		63,011,000
Affiliated Companies	60,313,000		78,282,000
Accrued Unbilled Revenues	1,536,000		17,293,000
Miscellaneous	1,483,000		5,064,000
Allowance for Uncollectible Accounts	(91,000)		(184,000)
Total Accounts Receivable	103,820,000		163,466,000
Fuel	45,891,000		53,807,000
Materials and Supplies	201,692,000		209,718,000
Risk Management Assets	16,330,000		15,388,000
Accrued Tax Benefits	7,460,000		48,832,000
Prepayments and Other Current Assets	25,404,000		38,103,000
TOTAL CURRENT ASSETS	415,514,000		586,494,000
Property, Plant and Equipment
Generation	3,655,966,000		3,577,906,000
Transmission	1,332,551,000		1,304,225,000
Distribution	1,676,964,000		1,625,057,000
Other Property, Plant and Equipment	1,441,401,000		1,421,361,000
Construction Work in Progress	561,440,000		427,164,000
Total Property, Plant and Equipment	8,668,322,000		8,355,713,000
Accumulated Depreciation and Amortization	3,403,540,000		3,299,349,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	5,264,782,000		5,056,364,000
Other Noncurrent Assets
Regulatory Assets	513,387,000		524,114,000
Spent Nuclear Fuel and Decommissioning Trusts	2,020,248,000		1,931,610,000
Long-term Risk Management Assets	4,409,000		11,495,000
Deferred Charges and Other Noncurrent Assets	111,641,000		143,657,000
TOTAL OTHER NONCURRENT ASSETS	2,649,685,000		2,610,876,000
TOTAL ASSETS	8,329,981,000		8,253,734,000
Current Liabilities
Advances from Affiliates	95,899,000		0
Accounts Payable	146,361,000		142,219,000
Affiliated Companies	65,270,000		93,773,000
Short-term Debt:
Long-term Debt Due Within One Year	238,698,000		294,845,000
Risk Management Liabilities	3,625,000		7,029,000
Customer Deposits	34,263,000		31,103,000
Accrued Taxes	58,676,000		73,292,000
Accrued Interest	12,992,000		27,686,000
Obligations Under Capital Leases	42,500,000		46,210,000
Other Current Liabilities	167,754,000		139,088,000
TOTAL CURRENT LIABILITIES	866,038,000		855,245,000
Noncurrent Liabilities
Long-term Debt	1,710,233,000		1,744,171,000
Long-term Risk Management Liabilities	2,032,000		6,946,000
Deferred Income Taxes	1,195,401,000		1,183,350,000
Regulatory Liabilities and Deferred Investment Tax Credits	1,145,699,000		1,112,645,000
Asset Retirement Obligations	1,299,178,000		1,255,184,000
Deferred Credits and Other Noncurrent Liabilities	146,885,000		174,040,000
TOTAL NONCURRENT LIABILITIES	5,499,428,000		5,476,336,000
TOTAL LIABILITIES	6,365,466,000		6,331,581,000
Rate Matters
Commitments and Contingencies
Equity
Common Stock	56,584,000		56,584,000
Paid-in Capital	980,896,000		980,896,000
Retained Earnings	941,231,000		900,182,000
Accumulated Other Comprehensive Income (Loss)	(14,196,000)		(15,509,000)
TOTAL EQUITY	1,964,515,000		1,922,153,000
TOTAL LIABILITIES AND EQUITY	8,329,981,000		8,253,734,000
Ohio Power Co [Member]
Current Assets
Cash and Cash Equivalents	3,889,000		3,004,000
Restricted Cash for Securitized Funding	17,734,000		19,387,000
Advances to Affiliates	23,745,000		339,070,000
Accounts Receivable:
Customers	47,423,000		67,054,000
Affiliated Companies	85,462,000		74,771,000
Accrued Unbilled Revenues	31,181,000		36,353,000
Miscellaneous	959,000		1,559,000
Allowance for Uncollectible Accounts	(179,000)		(34,984,000)
Total Accounts Receivable	164,846,000		144,753,000
Notes Receivable Due Within One Year - Affiliated	86,000,000		178,580,000
Materials and Supplies	54,958,000		53,711,000
Risk Management Assets	7,917,000		3,082,000
Deferred Income Tax Benefits	19,387,000		36,105,000
Accrued Tax Benefits	1,888,000		7,109,000
Prepayments and Other Current Assets	6,449,000		22,312,000
TOTAL CURRENT ASSETS	386,813,000		807,113,000
Property, Plant and Equipment
Transmission	2,064,599,000		2,011,289,000
Distribution	3,995,070,000		3,877,532,000
Other Property, Plant and Equipment	389,392,000		364,573,000
Construction Work in Progress	238,195,000		185,428,000
Total Property, Plant and Equipment	6,687,256,000		6,438,822,000
Accumulated Depreciation and Amortization	2,011,530,000		1,973,042,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	4,675,726,000		4,465,780,000
Other Noncurrent Assets
Notes Receivable - Affiliated	32,245,000		118,245,000
Regulatory Assets	1,370,561,000		1,378,697,000
Securitized Assets	115,806,000		131,582,000
Long-term Risk Management Assets	5,000		0
Deferred Charges and Other Noncurrent Assets	113,477,000		260,141,000
TOTAL OTHER NONCURRENT ASSETS	1,632,094,000		1,888,665,000
TOTAL ASSETS	6,694,633,000		7,161,558,000
Current Liabilities
Accounts Payable	128,400,000		146,307,000
Affiliated Companies	142,052,000		222,889,000
Short-term Debt:
Long-term Debt Due Within One Year	131,496,000		438,595,000
Customer Deposits	52,113,000		49,140,000
Accrued Taxes	238,481,000		429,260,000
Accrued Interest	45,895,000		40,853,000
Other Current Liabilities	143,091,000		95,194,000
TOTAL CURRENT LIABILITIES	881,528,000		1,422,238,000
Noncurrent Liabilities
Long-term Debt	2,165,508,000		2,296,580,000
Deferred Income Taxes	1,357,930,000		1,330,711,000
Regulatory Liabilities and Deferred Investment Tax Credits	479,704,000		435,499,000
Employee Benefits and Pension Obligations	23,958,000		28,329,000
Deferred Credits and Other Noncurrent Liabilities	25,505,000		22,936,000
TOTAL NONCURRENT LIABILITIES	4,052,605,000		4,114,055,000
TOTAL LIABILITIES	4,934,133,000		5,536,293,000
Rate Matters
Commitments and Contingencies
Equity
Common Stock	321,201,000		321,201,000
Paid-in Capital	663,782,000		663,782,000
Retained Earnings	769,572,000		633,203,000
Accumulated Other Comprehensive Income (Loss)	5,945,000		7,079,000
TOTAL EQUITY	1,760,500,000		1,625,265,000
TOTAL LIABILITIES AND EQUITY	6,694,633,000		7,161,558,000
Public Service Co Of Oklahoma [Member]
Current Assets
Cash and Cash Equivalents	1,828,000		1,277,000
Accounts Receivable:
Customers	32,464,000		32,314,000
Affiliated Companies	26,770,000		30,392,000
Miscellaneous	5,907,000		3,102,000
Allowance for Uncollectible Accounts	(128,000)		(462,000)
Total Accounts Receivable	65,013,000		65,346,000
Fuel	10,524,000		15,191,000
Materials and Supplies	51,619,000		52,707,000
Risk Management Assets	563,000		1,167,000
Deferred Income Tax Benefits	0		7,333,000
Accrued Tax Benefits	12,298,000		21,665,000
Regulatory Asset for Under-Recovered Fuel Costs	36,544,000		3,298,000
Prepayments and Other Current Assets	9,226,000		6,194,000
TOTAL CURRENT ASSETS	187,615,000		174,178,000
Property, Plant and Equipment
Generation	1,248,341,000		1,203,221,000
Transmission	770,613,000		731,312,000
Distribution	2,062,942,000		1,986,032,000
Other Property, Plant and Equipment	426,221,000		393,026,000
Construction Work in Progress	158,716,000		175,890,000
Total Property, Plant and Equipment	4,666,833,000		4,489,481,000
Accumulated Depreciation and Amortization	1,333,626,000		1,323,522,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	3,333,207,000		3,165,959,000
Other Noncurrent Assets
Regulatory Assets	143,123,000		156,690,000
Long-term Risk Management Assets	3,000		0
Employee Benefits and Pension Assets	27,272,000		22,629,000
Deferred Charges and Other Noncurrent Assets	15,184,000		7,238,000
TOTAL OTHER NONCURRENT ASSETS	185,582,000		186,557,000
TOTAL ASSETS	3,706,404,000		3,526,694,000
Current Liabilities
Advances from Affiliates	100,867,000		36,772,000
Accounts Payable	98,911,000		150,184,000
Affiliated Companies	40,599,000		45,427,000
Short-term Debt:
Long-term Debt Due Within One Year	424,000		34,115,000
Risk Management Liabilities	0		85,000
Customer Deposits	48,126,000		45,379,000
Accrued Taxes	45,850,000		23,442,000
Accrued Interest	14,904,000		12,646,000
Other Current Liabilities	50,342,000		58,992,000
TOTAL CURRENT LIABILITIES	400,023,000		407,042,000
Noncurrent Liabilities
Long-term Debt	1,040,632,000		965,695,000
Deferred Income Taxes	853,893,000		836,556,000
Regulatory Liabilities and Deferred Investment Tax Credits	326,048,000		327,673,000
Employee Benefits and Pension Obligations	10,772,000		10,561,000
Deferred Credits and Other Noncurrent Liabilities	57,578,000		37,066,000
TOTAL NONCURRENT LIABILITIES	2,288,923,000		2,177,551,000
TOTAL LIABILITIES	2,688,946,000		2,584,593,000
Rate Matters
Commitments and Contingencies
Equity
Common Stock	157,230,000		157,230,000
Paid-in Capital	364,037,000		364,037,000
Retained Earnings	491,059,000		415,076,000
Accumulated Other Comprehensive Income (Loss)	5,132,000		5,758,000
TOTAL EQUITY	1,017,458,000		942,101,000
TOTAL LIABILITIES AND EQUITY	3,706,404,000		3,526,694,000
Southwestern Electric Power Co [Member]
Current Assets
Cash and Cash Equivalents	23,986,000		17,241,000
Accounts Receivable:
Customers	38,932,000		86,263,000
Affiliated Companies	28,296,000		22,389,000
Miscellaneous	30,855,000		27,175,000
Allowance for Uncollectible Accounts	(296,000)		(1,418,000)
Total Accounts Receivable	97,787,000		134,409,000
Fuel	100,176,000		122,026,000
Materials and Supplies	74,212,000		74,862,000
Risk Management Assets	408,000		1,179,000
Deferred Income Tax Benefits	4,729,000		177,297,000
Accrued Tax Benefits	106,744,000		158,000
Regulatory Asset for Under-Recovered Fuel Costs	30,221,000		17,949,000
Prepayments and Other Current Assets	26,020,000		20,931,000
TOTAL CURRENT ASSETS	464,283,000		566,052,000
Property, Plant and Equipment
Generation	3,844,042,000		3,764,429,000
Transmission	1,265,646,000		1,165,167,000
Distribution	1,887,635,000		1,843,912,000
Other Property, Plant and Equipment	876,552,000		869,230,000
Construction Work in Progress	395,740,000		281,849,000
Total Property, Plant and Equipment	8,269,615,000		7,924,587,000
Accumulated Depreciation and Amortization	2,485,292,000		2,391,652,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	5,784,323,000		5,532,935,000
Other Noncurrent Assets
Regulatory Assets	364,968,000		369,905,000
Long-term Risk Management Assets	3,000		0
Deferred Charges and Other Noncurrent Assets	110,552,000		92,890,000
TOTAL OTHER NONCURRENT ASSETS	475,523,000		462,795,000
TOTAL ASSETS	6,724,129,000		6,561,782,000
Current Liabilities
Advances from Affiliates	6,329,000		9,180,000
Accounts Payable	175,572,000		152,653,000
Affiliated Companies	44,666,000		56,923,000
Short-term Debt:
Long-term Debt Due Within One Year	306,750,000		3,250,000
Risk Management Liabilities	131,000		0
Customer Deposits	58,595,000		56,375,000
Accrued Taxes	70,222,000		41,508,000
Accrued Interest	19,589,000		43,996,000
Obligations Under Capital Leases	18,006,000		17,899,000
Regulatory Liability for Over-Recovered Fuel Costs	0		7,275,000
Other Current Liabilities	76,030,000		79,622,000
TOTAL CURRENT LIABILITIES	775,890,000		468,681,000
Noncurrent Liabilities
Long-term Debt	1,833,598,000		2,040,082,000
Deferred Income Taxes	1,285,125,000		1,271,478,000
Regulatory Liabilities and Deferred Investment Tax Credits	470,748,000		472,128,000
Asset Retirement Obligations	90,929,000		87,630,000
Employee Benefits and Pension Obligations	17,319,000		14,602,000
Obligations Under Capital Leases	95,036,000		105,086,000
Deferred Credits and Other Noncurrent Liabilities	46,786,000		46,178,000
TOTAL NONCURRENT LIABILITIES	3,839,541,000		4,037,184,000
TOTAL LIABILITIES	4,615,431,000		4,505,865,000
Rate Matters
Commitments and Contingencies
Equity
Common Stock	135,660,000		135,660,000
Paid-in Capital	674,606,000		674,606,000
Retained Earnings	1,305,612,000		1,253,617,000
Accumulated Other Comprehensive Income (Loss)	(7,512,000)		(8,444,000)
TOTAL COMMON SHAREHOLDER'S EQUITY	2,108,366,000		2,055,439,000
Noncontrolling Interests	332,000		478,000
TOTAL EQUITY	2,108,698,000		2,055,917,000
TOTAL LIABILITIES AND EQUITY	$ 6,724,129,000		$ 6,561,782,000

[1] Amount of securitized debt for receivables as accounted for under the ''Transfers and Servicing'' accounting guidance