Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net Income (Loss)	$ 561,000,000	$ 364,000,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	5,000,000	24,000,000
Securities Available for Sale, Net of Tax	0	1,000,000
Amortization of Pension and OPEB Deferred Costs, Net of Tax	1,000,000	6,000,000
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	6,000,000	31,000,000
TOTAL COMPREHENSIVE INCOME (LOSS)	567,000,000	395,000,000
Total Comprehensive Income Attributable to Noncontrolling Interest	1,000,000	1,000,000
TOTAL COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO COMMON SHAREHOLDERS	566,000,000	394,000,000
Appalachian Power Co [Member]
Net Income (Loss)	101,851,000	70,548,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	246,000	1,258,000
Amortization of Pension and OPEB Deferred Costs, Net of Tax	(333,000)	358,000
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	(87,000)	1,616,000
TOTAL COMPREHENSIVE INCOME (LOSS)	101,764,000	72,164,000
Indiana Michigan Power Co [Member]
Net Income (Loss)	87,089,000	43,457,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	425,000	3,123,000
Amortization of Pension and OPEB Deferred Costs, Net of Tax	43,000	176,000
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	468,000	3,299,000
TOTAL COMPREHENSIVE INCOME (LOSS)	87,557,000	46,756,000
Ohio Power Co [Member]
Net Income (Loss)	60,774,000	129,774,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	(448,000)	1,066,000
Amortization of Pension and OPEB Deferred Costs, Net of Tax	0	3,269,000
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	(448,000)	4,335,000
TOTAL COMPREHENSIVE INCOME (LOSS)	60,326,000	134,109,000
Public Service Co Of Oklahoma [Member]
Net Income (Loss)	8,448,000	13,693,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	(246,000)	(167,000)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	(246,000)	(167,000)
TOTAL COMPREHENSIVE INCOME (LOSS)	8,202,000	13,526,000
Southwestern Electric Power Co [Member]
Net Income (Loss)	22,962,000	11,548,000
OTHER COMPREHENSIVE INCOME
Cash Flow Hedges, Net of Tax	502,000	596,000
Amortization of Pension and OPEB Deferred Costs, Net of Tax	(234,000)	(63,000)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	268,000	533,000
TOTAL COMPREHENSIVE INCOME (LOSS)	23,230,000	12,081,000
Total Comprehensive Income Attributable to Noncontrolling Interest	1,102,000	1,090,000
TOTAL COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ 22,128,000	$ 10,991,000