Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net Income (Loss)	$ 434,000,000	$ 488,000,000	$ 1,137,000,000	$ 1,241,000,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	(1,000,000)	13,000,000	13,000,000	(8,000,000)
Securities Available for Sale, Net of Tax	1,000,000	1,000,000	2,000,000	2,000,000
Amortization of Pension and OPEB Deferred Costs, Net of Tax	7,000,000	7,000,000	16,000,000	22,000,000
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	7,000,000	21,000,000	31,000,000	16,000,000
TOTAL COMPREHENSIVE INCOME (LOSS)	441,000,000	509,000,000	1,168,000,000	1,257,000,000
Total Comprehensive Income Attributable to Noncontrolling Interest	1,000,000	1,000,000	3,000,000	3,000,000
TOTAL COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO COMMON SHAREHOLDERS	440,000,000	508,000,000	1,165,000,000	1,254,000,000
Appalachian Power Co [Member]
Net Income (Loss)	62,625,000	63,191,000	163,035,000	200,834,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	22,000	1,719,000	1,369,000	1,746,000
Amortization of Pension and OPEB Deferred Costs, Net of Tax	359,000	899,000	1,075,000	2,698,000
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	381,000	2,618,000	2,444,000	4,444,000
TOTAL COMPREHENSIVE INCOME (LOSS)	63,006,000	65,809,000	165,479,000	205,278,000
Indiana Michigan Power Co [Member]
Net Income (Loss)	57,880,000	39,254,000	142,091,000	108,285,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	244,000	(404,000)	3,688,000	(5,381,000)
Amortization of Pension and OPEB Deferred Costs, Net of Tax	174,000	278,000	525,000	835,000
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	418,000	(126,000)	4,213,000	(4,546,000)
TOTAL COMPREHENSIVE INCOME (LOSS)	58,298,000	39,128,000	146,304,000	103,739,000
Ohio Power Co [Member]
Net Income (Loss)	178,901,000	151,510,000	329,731,000	403,763,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	(675,000)	1,776,000	(154,000)	205,000
Amortization of Pension and OPEB Deferred Costs, Net of Tax	2,985,000	3,240,000	9,524,000	9,721,000
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	2,310,000	5,016,000	9,370,000	9,926,000
TOTAL COMPREHENSIVE INCOME (LOSS)	181,211,000	156,526,000	339,101,000	413,689,000
Public Service Co Of Oklahoma [Member]
Net Income (Loss)	51,096,000	58,103,000	93,221,000	105,962,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	(172,000)	(53,000)	(593,000)	(465,000)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	(172,000)		(593,000)	(465,000)
TOTAL COMPREHENSIVE INCOME (LOSS)	50,924,000	58,050,000	92,628,000	105,497,000
Southwestern Electric Power Co [Member]
Net Income (Loss)	7,920,000	89,218,000	49,695,000	180,515,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	589,000	697,000	1,675,000	(682,000)
Amortization of Pension and OPEB Deferred Costs, Net of Tax	(64,000)	167,000	(191,000)	499,000
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	525,000	864,000	1,484,000	(183,000)
TOTAL COMPREHENSIVE INCOME (LOSS)	8,445,000	90,082,000	51,179,000	180,332,000
Total Comprehensive Income Attributable to Noncontrolling Interest	1,058,000	955,000	3,204,000	3,099,000
TOTAL COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ 7,387,000	$ 89,127,000	$ 47,975,000	$ 177,233,000