Disposition Plant Severance (Tables)

9 Months Ended

Sep. 30, 2015

Disposition Plant Severance [Member]

Remaining Accrual

	Disposition Plant Severance Activity
	(in millions)
Balance as of December 31, 2014	$	29
Incurred	3
Settled	(21		)
Adjustments	—
Balance as of September 30, 2015	$	11

Appalachian Power Co [Member]

Total Cost Incurred

Company	Total Cost Incurred
	(in thousands)
APCo	$	7,112
I&M	8,185
OPCo	80
PSO	288
SWEPCo	289

Remaining Accrual

	Balance as of		Expense Allocation from			Incurred by Registrant									Remaining Balance as of
Company	December 31, 2014		AEPSC			Subsidiaries		Settled				Adjustments			September 30, 2015
	(in thousands)
APCo	$	9,304	$	(6	)	$	849	$	(6,385	)	(a)	$	(119	)	$	3,643
I&M	8,023		(2		)	351		(5,110		)		—			3,262
PSO	134		(3		)	415		(121		)		—			425
SWEPCo	84		(4		)	—		(79		)		—			1

(a) Settled includes amounts received from affiliates for expenses related to joint plant.

Indiana Michigan Power Co [Member]

Total Cost Incurred

Company	Total Cost Incurred
	(in thousands)
APCo	$	7,112
I&M	8,185
OPCo	80
PSO	288
SWEPCo	289

Remaining Accrual

	Balance as of		Expense Allocation from			Incurred by Registrant									Remaining Balance as of
Company	December 31, 2014		AEPSC			Subsidiaries		Settled				Adjustments			September 30, 2015
	(in thousands)
APCo	$	9,304	$	(6	)	$	849	$	(6,385	)	(a)	$	(119	)	$	3,643
I&M	8,023		(2		)	351		(5,110		)		—			3,262
PSO	134		(3		)	415		(121		)		—			425
SWEPCo	84		(4		)	—		(79		)		—			1

(a) Settled includes amounts received from affiliates for expenses related to joint plant.

Ohio Power Co [Member]

Total Cost Incurred

Company	Total Cost Incurred
	(in thousands)
APCo	$	7,112
I&M	8,185
OPCo	80
PSO	288
SWEPCo	289

Remaining Accrual

	Balance as of		Expense Allocation from			Incurred by Registrant									Remaining Balance as of
Company	December 31, 2014		AEPSC			Subsidiaries		Settled				Adjustments			September 30, 2015
	(in thousands)
APCo	$	9,304	$	(6	)	$	849	$	(6,385	)	(a)	$	(119	)	$	3,643
I&M	8,023		(2		)	351		(5,110		)		—			3,262
PSO	134		(3		)	415		(121		)		—			425
SWEPCo	84		(4		)	—		(79		)		—			1

(a) Settled includes amounts received from affiliates for expenses related to joint plant.

Public Service Co Of Oklahoma [Member]

Total Cost Incurred

Company	Total Cost Incurred
	(in thousands)
APCo	$	7,112
I&M	8,185
OPCo	80
PSO	288
SWEPCo	289

Remaining Accrual

	Balance as of		Expense Allocation from			Incurred by Registrant									Remaining Balance as of
Company	December 31, 2014		AEPSC			Subsidiaries		Settled				Adjustments			September 30, 2015
	(in thousands)
APCo	$	9,304	$	(6	)	$	849	$	(6,385	)	(a)	$	(119	)	$	3,643
I&M	8,023		(2		)	351		(5,110		)		—			3,262
PSO	134		(3		)	415		(121		)		—			425
SWEPCo	84		(4		)	—		(79		)		—			1

(a) Settled includes amounts received from affiliates for expenses related to joint plant.

Southwestern Electric Power Co [Member]

Total Cost Incurred

Company	Total Cost Incurred
	(in thousands)
APCo	$	7,112
I&M	8,185
OPCo	80
PSO	288
SWEPCo	289

Remaining Accrual

	Balance as of		Expense Allocation from			Incurred by Registrant									Remaining Balance as of
Company	December 31, 2014		AEPSC			Subsidiaries		Settled				Adjustments			September 30, 2015
	(in thousands)
APCo	$	9,304	$	(6	)	$	849	$	(6,385	)	(a)	$	(119	)	$	3,643
I&M	8,023		(2		)	351		(5,110		)		—			3,262
PSO	134		(3		)	415		(121		)		—			425
SWEPCo	84		(4		)	—		(79		)		—			1

(a) Settled includes amounts received from affiliates for expenses related to joint plant.