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Cost Reduction Programs (Tables)

12 Months Ended

Dec. 31, 2012

	Total
	(in millions)
Incurred	$	47
Settled		(22)
Balance as of December 31, 2012	$	25

Appalachian Power Co [Member] | 2012 Sustainable Cost Reductions

Remaining Accrual

	Expense		Incurred for				Remaining
	Allocation from		Registrant				Balance as of
	AEPSC		Subsidiaries		Settled		December 31, 2012
	(in thousands)
APCo	$	6,452	$	2,020	$	(7,151)	$	1,321
I&M		4,167		1,511		(4,321)		1,357
OPCo		9,225		4,273		(10,048)		3,450
PSO		3,020		655		(3,023)		652
SWEPCo		4,199		1,510		(5,082)		627

Appalachian Power Co [Member] | 2010 Cost Reduction Initiatives

Remaining Accrual

	Balance as of						Balance as of
Company	December 31, 2011		Settled		Adjustments		December 31, 2012
	(in thousands)
APCo	$	92	$	-	$	(92)	$	-
OPCo		138		(138)		-		-

Schedule of Restructuring and Related Costs

Company	Total Cost Incurred
	(in thousands)
APCo	$	56,925
I&M		45,036
OPCo		85,400
PSO		24,005
SWEPCo		29,662

Indiana Michigan Power Co [Member] | 2012 Sustainable Cost Reductions

Remaining Accrual

	Expense		Incurred for				Remaining
	Allocation from		Registrant				Balance as of
	AEPSC		Subsidiaries		Settled		December 31, 2012
	(in thousands)
APCo	$	6,452	$	2,020	$	(7,151)	$	1,321
I&M		4,167		1,511		(4,321)		1,357
OPCo		9,225		4,273		(10,048)		3,450
PSO		3,020		655		(3,023)		652
SWEPCo		4,199		1,510		(5,082)		627

Indiana Michigan Power Co [Member] | 2010 Cost Reduction Initiatives

Schedule of Restructuring and Related Costs

Company	Total Cost Incurred
	(in thousands)
APCo	$	56,925
I&M		45,036
OPCo		85,400
PSO		24,005
SWEPCo		29,662

Ohio Power Co [Member] | 2012 Sustainable Cost Reductions

Remaining Accrual

	Expense		Incurred for				Remaining
	Allocation from		Registrant				Balance as of
	AEPSC		Subsidiaries		Settled		December 31, 2012
	(in thousands)
APCo	$	6,452	$	2,020	$	(7,151)	$	1,321
I&M		4,167		1,511		(4,321)		1,357
OPCo		9,225		4,273		(10,048)		3,450
PSO		3,020		655		(3,023)		652
SWEPCo		4,199		1,510		(5,082)		627

Ohio Power Co [Member] | 2010 Cost Reduction Initiatives

Remaining Accrual

	Balance as of						Balance as of
Company	December 31, 2011		Settled		Adjustments		December 31, 2012
	(in thousands)
APCo	$	92	$	-	$	(92)	$	-
OPCo		138		(138)		-		-

Schedule of Restructuring and Related Costs

Company	Total Cost Incurred
	(in thousands)
APCo	$	56,925
I&M		45,036
OPCo		85,400
PSO		24,005
SWEPCo		29,662

Public Service Co of Oklahoma [Member] | 2012 Sustainable Cost Reductions

Remaining Accrual

	Expense		Incurred for				Remaining
	Allocation from		Registrant				Balance as of
	AEPSC		Subsidiaries		Settled		December 31, 2012
	(in thousands)
APCo	$	6,452	$	2,020	$	(7,151)	$	1,321
I&M		4,167		1,511		(4,321)		1,357
OPCo		9,225		4,273		(10,048)		3,450
PSO		3,020		655		(3,023)		652
SWEPCo		4,199		1,510		(5,082)		627

Public Service Co of Oklahoma [Member] | 2010 Cost Reduction Initiatives

Schedule of Restructuring and Related Costs

Company	Total Cost Incurred
	(in thousands)
APCo	$	56,925
I&M		45,036
OPCo		85,400
PSO		24,005
SWEPCo		29,662

Southwestern Electric Power Co [Member] | 2012 Sustainable Cost Reductions

Remaining Accrual

	Expense		Incurred for				Remaining
	Allocation from		Registrant				Balance as of
	AEPSC		Subsidiaries		Settled		December 31, 2012
	(in thousands)
APCo	$	6,452	$	2,020	$	(7,151)	$	1,321
I&M		4,167		1,511		(4,321)		1,357
OPCo		9,225		4,273		(10,048)		3,450
PSO		3,020		655		(3,023)		652
SWEPCo		4,199		1,510		(5,082)		627

Southwestern Electric Power Co [Member] | 2010 Cost Reduction Initiatives

Schedule of Restructuring and Related Costs

Company	Total Cost Incurred
	(in thousands)
APCo	$	56,925
I&M		45,036
OPCo		85,400
PSO		24,005
SWEPCo		29,662

- Definition

Tabular disclosure of restructuring and related costs by type of restructuring including the description of the restructuring costs, such as the expected cost; the costs incurred during the period; the cumulative costs incurred as of the balance sheet date; the income statement caption within which the restructuring charges recognized for the period are included; and changes to an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost.

+ References+ Details

- Definition

Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period.

+ References+ Details