Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2014		Dec. 31, 2013
Current Assets
Cash and Cash Equivalents	$ 190,000,000		$ 118,000,000
Other Temporary Investments	377,000,000		353,000,000
Accounts Receivable:
Customers	774,000,000		746,000,000
Accrued Unbilled Revenues	59,000,000		157,000,000
Pledged Accounts Receivable - AEP Credit	1,060,000,000		945,000,000
Miscellaneous	60,000,000		72,000,000
Allowance for Uncollectible Accounts	(27,000,000)		(60,000,000)
Total Accounts Receivable	1,926,000,000		1,860,000,000
Fuel	471,000,000		701,000,000
Materials and Supplies	748,000,000		722,000,000
Risk Management Assets	146,000,000		160,000,000
Regulatory Asset for Under-Recovered Fuel Costs	158,000,000		80,000,000
Margin Deposits	78,000,000		70,000,000
Prepayments and Other Current Assets	229,000,000		246,000,000
TOTAL CURRENT ASSETS	4,323,000,000		4,310,000,000
Property, Plant and Equipment
Generation	25,401,000,000		25,074,000,000
Transmission	11,420,000,000		10,893,000,000
Distribution	16,716,000,000		16,377,000,000
Other Property, Plant and Equipment	5,642,000,000		5,470,000,000
Construction Work in Progress	2,886,000,000		2,471,000,000
Total Property, Plant and Equipment	62,065,000,000		60,285,000,000
Accumulated Depreciation and Amortization	19,792,000,000		19,288,000,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	42,273,000,000		40,997,000,000
Other Noncurrent Assets
Regulatory Assets	4,390,000,000		4,376,000,000
Securitized Assets	2,244,000,000		2,373,000,000
Spent Nuclear Fuel and Decommissioning Trusts	2,019,000,000		1,932,000,000
Goodwill	91,000,000		91,000,000
Long-term Risk Management Assets	224,000,000		297,000,000
Deferred Charges and Other Noncurrent Assets	2,056,000,000		2,038,000,000
TOTAL OTHER NONCURRENT ASSETS	11,024,000,000		11,107,000,000
TOTAL ASSETS	57,620,000,000		56,414,000,000
Current Liabilities
Accounts Payable	1,228,000,000		1,266,000,000
Short-term Debt:
Securitized Debt for Receivable - AEP Credit	750,000,000	[1]	700,000,000	[1]
Other Short-term Debt	732,000,000		57,000,000
Total Short-term Debt	1,482,000,000		757,000,000
Long-term Debt Due Within One Year	2,524,000,000		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	306,000,000		299,000,000
Accrued Taxes	692,000,000		822,000,000
Accrued Interest	240,000,000		245,000,000
Regulatory Liability for Over-Recovered Fuel Costs	58,000,000		119,000,000
Other Current Liabilities	1,010,000,000		965,000,000
TOTAL CURRENT LIABILITIES	7,600,000,000		6,112,000,000
Noncurrent Liabilities
Long-term Debt	15,601,000,000		16,828,000,000
Long-term Debt - Affiliated	0		0
Long-term Risk Management Liabilities	115,000,000		177,000,000
Deferred Income Taxes	10,463,000,000		10,300,000,000
Regulatory Liabilities and Deferred Investment Tax Credits	3,840,000,000		3,694,000,000
Asset Retirement Obligations	1,908,000,000		1,835,000,000
Employee Benefits and Pension Obligations	411,000,000		415,000,000
Deferred Credits and Other Noncurrent Liabilities	1,097,000,000		967,000,000
TOTAL NONCURRENT LIABILITIES	33,435,000,000		34,216,000,000
TOTAL LIABILITIES	41,035,000,000		40,328,000,000
Rate Matters
Commitments and Contingencies
Equity
Common Stock	3,308,000,000		3,303,000,000
Paid-in Capital	6,155,000,000		6,131,000,000
Retained Earnings	7,222,000,000		6,766,000,000
Accumulated Other Comprehensive Income (Loss)	(104,000,000)		(115,000,000)
TOTAL COMMON SHAREHOLDER'S EQUITY	16,581,000,000		16,085,000,000
Noncontrolling Interests	4,000,000		1,000,000
TOTAL EQUITY	16,585,000,000		16,086,000,000
TOTAL LIABILITIES AND EQUITY	57,620,000,000		56,414,000,000
Appalachian Power Co [Member]
Current Assets
Cash and Cash Equivalents	3,213,000		2,745,000
Advances to Affiliates	28,794,000		92,485,000
Accounts Receivable:
Customers	125,999,000		142,010,000
Affiliated Companies	52,876,000		113,793,000
Accrued Unbilled Revenues	37,911,000		55,930,000
Miscellaneous	608,000		412,000
Allowance for Uncollectible Accounts	(2,742,000)		(2,443,000)
Total Accounts Receivable	214,652,000		309,702,000
Fuel	119,973,000		191,811,000
Materials and Supplies	131,561,000		128,843,000
Risk Management Assets	24,819,000		21,171,000
Regulatory Asset for Under-Recovered Fuel Costs	76,364,000		39,811,000
Prepayments and Other Current Assets	37,111,000		16,472,000
TOTAL CURRENT ASSETS	636,487,000		803,040,000
Property, Plant and Equipment
Generation	6,805,605,000		6,745,172,000
Transmission	2,186,855,000		2,160,660,000
Distribution	3,192,082,000		3,139,150,000
Other Property, Plant and Equipment	369,950,000		357,517,000
Construction Work in Progress	222,129,000		184,701,000
Total Property, Plant and Equipment	12,776,621,000		12,587,200,000
Accumulated Depreciation and Amortization	3,739,411,000		3,617,990,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	9,037,210,000		8,969,210,000
Other Noncurrent Assets
Regulatory Assets	1,006,282,000		1,003,890,000
Securitized Assets	360,612,000		369,355,000
Long-term Risk Management Assets	8,110,000		16,948,000
Deferred Charges and Other Noncurrent Assets	146,418,000		148,205,000
TOTAL OTHER NONCURRENT ASSETS	1,521,422,000		1,538,398,000
TOTAL ASSETS	11,195,119,000		11,310,648,000
Current Liabilities
Accounts Payable	171,159,000		169,184,000
Affiliated Companies	74,714,000		120,789,000
Short-term Debt:
Long-term Debt Due Within One Year	653,400,000		342,360,000
Long-term Debt Due Within One Year - Affiliated	86,000,000		0
Risk Management Liabilities	4,226,000		8,892,000
Customer Deposits	65,167,000		66,040,000
Deferred Income Taxes	27,518,000		6,899,000
Accrued Taxes	95,917,000		114,699,000
Accrued Interest	54,906,000		51,899,000
Regulatory Liability for Over-Recovered Fuel Costs	31,776,000		107,048,000
Other Current Liabilities	84,470,000		97,566,000
TOTAL CURRENT LIABILITIES	1,349,253,000		1,085,376,000
Noncurrent Liabilities
Long-term Debt	3,253,217,000		3,765,997,000
Long-term Debt - Affiliated	0		86,000,000
Long-term Risk Management Liabilities	3,766,000		10,241,000
Deferred Income Taxes	2,315,231,000		2,232,441,000
Regulatory Liabilities and Deferred Investment Tax Credits	668,971,000		631,225,000
Employee Benefits and Pension Obligations	98,039,000		82,264,000
Deferred Credits and Other Noncurrent Liabilities	179,366,000		187,672,000
TOTAL NONCURRENT LIABILITIES	6,518,590,000		6,995,840,000
TOTAL LIABILITIES	7,867,843,000		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	1,254,559,000		1,156,461,000
Accumulated Other Comprehensive Income (Loss)	2,697,000		2,951,000
TOTAL EQUITY	3,327,276,000		3,229,432,000
TOTAL LIABILITIES AND EQUITY	11,195,119,000		11,310,648,000
Indiana Michigan Power Co [Member]
Current Assets
Cash and Cash Equivalents	1,658,000		1,317,000
Advances to Affiliates	13,506,000		55,863,000
Accounts Receivable:
Customers	60,633,000		63,011,000
Affiliated Companies	50,517,000		78,282,000
Accrued Unbilled Revenues	5,077,000		17,293,000
Miscellaneous	1,581,000		5,064,000
Allowance for Uncollectible Accounts	(8,000)		(184,000)
Total Accounts Receivable	117,800,000		163,466,000
Fuel	52,645,000		53,807,000
Materials and Supplies	206,577,000		209,718,000
Risk Management Assets	17,889,000		15,388,000
Accrued Tax Benefits	28,758,000		48,832,000
Prepayments and Other Current Assets	28,376,000		38,103,000
TOTAL CURRENT ASSETS	467,209,000		586,494,000
Property, Plant and Equipment
Generation	3,606,655,000		3,577,906,000
Transmission	1,328,541,000		1,304,225,000
Distribution	1,657,901,000		1,625,057,000
Other Property, Plant and Equipment	1,454,312,000		1,421,361,000
Construction Work in Progress	518,635,000		427,164,000
Total Property, Plant and Equipment	8,566,044,000		8,355,713,000
Accumulated Depreciation and Amortization	3,371,379,000		3,299,349,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	5,194,665,000		5,056,364,000
Other Noncurrent Assets
Regulatory Assets	506,770,000		524,114,000
Spent Nuclear Fuel and Decommissioning Trusts	2,018,506,000		1,931,610,000
Long-term Risk Management Assets	5,407,000		11,495,000
Deferred Charges and Other Noncurrent Assets	130,542,000		143,657,000
TOTAL OTHER NONCURRENT ASSETS	2,661,225,000		2,610,876,000
TOTAL ASSETS	8,323,099,000		8,253,734,000
Current Liabilities
Advances from Affiliates	47,353,000		0
Accounts Payable	163,598,000		142,219,000
Affiliated Companies	67,241,000		93,773,000
Short-term Debt:
Long-term Debt Due Within One Year	260,728,000		294,845,000
Risk Management Liabilities	3,477,000		7,029,000
Customer Deposits	32,966,000		31,103,000
Accrued Taxes	67,151,000		73,292,000
Accrued Interest	26,961,000		27,686,000
Obligations Under Capital Leases	46,420,000		46,210,000
Other Current Liabilities	137,383,000		139,088,000
TOTAL CURRENT LIABILITIES	853,278,000		855,245,000
Noncurrent Liabilities
Long-term Debt	1,718,313,000		1,744,171,000
Long-term Risk Management Liabilities	2,554,000		6,946,000
Deferred Income Taxes	1,184,067,000		1,183,350,000
Regulatory Liabilities and Deferred Investment Tax Credits	1,170,362,000		1,112,645,000
Asset Retirement Obligations	1,284,364,000		1,255,184,000
Deferred Credits and Other Noncurrent Liabilities	147,724,000		174,040,000
TOTAL NONCURRENT LIABILITIES	5,507,384,000		5,476,336,000
TOTAL LIABILITIES	6,360,662,000		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	939,605,000		900,182,000
Accumulated Other Comprehensive Income (Loss)	(14,648,000)		(15,509,000)
TOTAL EQUITY	1,962,437,000		1,922,153,000
TOTAL LIABILITIES AND EQUITY	8,323,099,000		8,253,734,000
Ohio Power Co [Member]
Current Assets
Cash and Cash Equivalents	4,475,000		3,004,000
Restricted Cash for Securitized Funding	43,003,000		19,387,000
Advances to Affiliates	0		339,070,000
Accounts Receivable:
Customers	58,336,000		67,054,000
Affiliated Companies	65,704,000		74,771,000
Accrued Unbilled Revenues	22,230,000		36,353,000
Miscellaneous	607,000		1,559,000
Allowance for Uncollectible Accounts	(170,000)		(34,984,000)
Total Accounts Receivable	146,707,000		144,753,000
Notes Receivable Due Within One Year - Affiliated	125,130,000		178,580,000
Materials and Supplies	57,916,000		53,711,000
Risk Management Assets	9,299,000		3,082,000
Deferred Income Tax Benefits	17,190,000		36,105,000
Accrued Tax Benefits	5,164,000		7,109,000
Prepayments and Other Current Assets	6,063,000		22,312,000
TOTAL CURRENT ASSETS	414,947,000		807,113,000
Property, Plant and Equipment
Transmission	2,054,005,000		2,011,289,000
Distribution	3,953,298,000		3,877,532,000
Other Property, Plant and Equipment	384,803,000		364,573,000
Construction Work in Progress	200,658,000		185,428,000
Total Property, Plant and Equipment	6,592,764,000		6,438,822,000
Accumulated Depreciation and Amortization	1,999,165,000		1,973,042,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	4,593,599,000		4,465,780,000
Other Noncurrent Assets
Notes Receivable - Affiliated	32,245,000		118,245,000
Regulatory Assets	1,412,717,000		1,378,697,000
Securitized Assets	121,613,000		131,582,000
Deferred Charges and Other Noncurrent Assets	160,460,000		260,141,000
TOTAL OTHER NONCURRENT ASSETS	1,727,035,000		1,888,665,000
TOTAL ASSETS	6,735,581,000		7,161,558,000
Current Liabilities
Advances from Affiliates	34,723,000		0
Accounts Payable	124,119,000		146,307,000
Affiliated Companies	155,441,000		222,889,000
Short-term Debt:
Long-term Debt Due Within One Year	182,335,000		438,595,000
Customer Deposits	49,620,000		49,140,000
Accrued Taxes	276,729,000		429,260,000
Accrued Interest	36,184,000		40,853,000
Other Current Liabilities	93,008,000		95,194,000
TOTAL CURRENT LIABILITIES	952,159,000		1,422,238,000
Noncurrent Liabilities
Long-term Debt	2,188,617,000		2,296,580,000
Deferred Income Taxes	1,362,794,000		1,330,711,000
Regulatory Liabilities and Deferred Investment Tax Credits	477,139,000		435,499,000
Employee Benefits and Pension Obligations	22,724,000		28,329,000
Deferred Credits and Other Noncurrent Liabilities	25,365,000		22,936,000
TOTAL NONCURRENT LIABILITIES	4,076,639,000		4,114,055,000
TOTAL LIABILITIES	5,028,798,000		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	715,512,000		633,203,000
Accumulated Other Comprehensive Income (Loss)	6,288,000		7,079,000
TOTAL EQUITY	1,706,783,000		1,625,265,000
TOTAL LIABILITIES AND EQUITY	6,735,581,000		7,161,558,000
Public Service Co Of Oklahoma [Member]
Current Assets
Cash and Cash Equivalents	1,627,000		1,277,000
Accounts Receivable:
Customers	42,342,000		32,314,000
Affiliated Companies	23,901,000		30,392,000
Miscellaneous	3,763,000		3,102,000
Allowance for Uncollectible Accounts	(278,000)		(462,000)
Total Accounts Receivable	69,728,000		65,346,000
Fuel	11,742,000		15,191,000
Materials and Supplies	52,826,000		52,707,000
Risk Management Assets	522,000		1,167,000
Deferred Income Tax Benefits	0		7,333,000
Accrued Tax Benefits	34,491,000		21,665,000
Regulatory Asset for Under-Recovered Fuel Costs	41,852,000		3,298,000
Prepayments and Other Current Assets	6,886,000		6,194,000
TOTAL CURRENT ASSETS	219,674,000		174,178,000
Property, Plant and Equipment
Generation	1,243,810,000		1,203,221,000
Transmission	768,291,000		731,312,000
Distribution	2,032,961,000		1,986,032,000
Other Property, Plant and Equipment	417,407,000		393,026,000
Construction Work in Progress	129,655,000		175,890,000
Total Property, Plant and Equipment	4,592,124,000		4,489,481,000
Accumulated Depreciation and Amortization	1,318,667,000		1,323,522,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	3,273,457,000		3,165,959,000
Other Noncurrent Assets
Regulatory Assets	162,026,000		156,690,000
Employee Benefits and Pension Assets	27,436,000		22,629,000
Deferred Charges and Other Noncurrent Assets	22,596,000		7,238,000
TOTAL OTHER NONCURRENT ASSETS	212,058,000		186,557,000
TOTAL ASSETS	3,705,189,000		3,526,694,000
Current Liabilities
Advances from Affiliates	124,800,000		36,772,000
Accounts Payable	115,000,000		150,184,000
Affiliated Companies	60,888,000		45,427,000
Short-term Debt:
Long-term Debt Due Within One Year	421,000		34,115,000
Risk Management Liabilities	102,000		85,000
Customer Deposits	47,789,000		45,379,000
Accrued Taxes	34,607,000		23,442,000
Accrued Interest	12,226,000		12,646,000
Other Current Liabilities	50,868,000		58,992,000
TOTAL CURRENT LIABILITIES	446,701,000		407,042,000
Noncurrent Liabilities
Long-term Debt	1,040,654,000		965,695,000
Deferred Income Taxes	852,598,000		836,556,000
Regulatory Liabilities and Deferred Investment Tax Credits	326,133,000		327,673,000
Employee Benefits and Pension Obligations	10,633,000		10,561,000
Deferred Credits and Other Noncurrent Liabilities	55,908,000		37,066,000
TOTAL NONCURRENT LIABILITIES	2,285,926,000		2,177,551,000
TOTAL LIABILITIES	2,732,627,000		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	445,973,000		415,076,000
Accumulated Other Comprehensive Income (Loss)	5,322,000		5,758,000
TOTAL EQUITY	972,562,000		942,101,000
TOTAL LIABILITIES AND EQUITY	3,705,189,000		3,526,694,000
Southwestern Electric Power Co [Member]
Current Assets
Cash and Cash Equivalents	16,971,000		17,241,000
Accounts Receivable:
Customers	70,873,000		86,263,000
Affiliated Companies	18,641,000		22,389,000
Miscellaneous	24,022,000		27,175,000
Allowance for Uncollectible Accounts	(321,000)		(1,418,000)
Total Accounts Receivable	113,215,000		134,409,000
Fuel	98,076,000		122,026,000
Materials and Supplies	75,898,000		74,862,000
Risk Management Assets	506,000		1,179,000
Deferred Income Tax Benefits	4,841,000		177,297,000
Accrued Tax Benefits	139,864,000		158,000
Regulatory Asset for Under-Recovered Fuel Costs	29,499,000		17,949,000
Prepayments and Other Current Assets	21,677,000		20,931,000
TOTAL CURRENT ASSETS	500,547,000		566,052,000
Property, Plant and Equipment
Generation	3,790,118,000		3,764,429,000
Transmission	1,242,567,000		1,165,167,000
Distribution	1,872,030,000		1,843,912,000
Other Property, Plant and Equipment	881,351,000		869,230,000
Construction Work in Progress	342,719,000		281,849,000
Total Property, Plant and Equipment	8,128,785,000		7,924,587,000
Accumulated Depreciation and Amortization	2,456,059,000		2,391,652,000
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET	5,672,726,000		5,532,935,000
Other Noncurrent Assets
Regulatory Assets	365,527,000		369,905,000
Deferred Charges and Other Noncurrent Assets	123,220,000		92,890,000
TOTAL OTHER NONCURRENT ASSETS	488,747,000		462,795,000
TOTAL ASSETS	6,662,020,000		6,561,782,000
Current Liabilities
Advances from Affiliates	79,098,000		9,180,000
Accounts Payable	145,830,000		152,653,000
Affiliated Companies	73,442,000		56,923,000
Short-term Debt:
Long-term Debt Due Within One Year	156,750,000		3,250,000
Risk Management Liabilities	17,000		0
Customer Deposits	58,445,000		56,375,000
Accrued Taxes	71,928,000		41,508,000
Accrued Interest	43,291,000		43,996,000
Obligations Under Capital Leases	18,263,000		17,899,000
Regulatory Liability for Over-Recovered Fuel Costs	0		7,275,000
Other Current Liabilities	68,460,000		79,622,000
TOTAL CURRENT LIABILITIES	715,524,000		468,681,000
Noncurrent Liabilities
Long-term Debt	1,885,135,000		2,040,082,000
Deferred Income Taxes	1,281,275,000		1,271,478,000
Regulatory Liabilities and Deferred Investment Tax Credits	471,225,000		472,128,000
Asset Retirement Obligations	89,701,000		87,630,000
Employee Benefits and Pension Obligations	14,157,000		14,602,000
Obligations Under Capital Leases	98,823,000		105,086,000
Deferred Credits and Other Noncurrent Liabilities	46,187,000		46,178,000
TOTAL NONCURRENT LIABILITIES	3,886,503,000		4,037,184,000
TOTAL LIABILITIES	4,602,027,000		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	1,257,174,000		1,253,617,000
Accumulated Other Comprehensive Income (Loss)	(7,844,000)		(8,444,000)
TOTAL COMMON SHAREHOLDER'S EQUITY	2,059,596,000		2,055,439,000
Noncontrolling Interests	397,000		478,000
TOTAL EQUITY	2,059,993,000		2,055,917,000
TOTAL LIABILITIES AND EQUITY	$ 6,662,020,000		$ 6,561,782,000

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