Rate Matters (Tables)

12 Months Ended

Dec. 31, 2012

Appalachian Power Co [Member]

Recognized Gross Seams Elimination Cost Allocation Revenue [Text Block]

Company	(in millions)
APCo	$	70.2
I&M		41.3
OPCo		92.1

Indiana Michigan Power Co [Member]

Recognized Gross Seams Elimination Cost Allocation Revenue [Text Block]

Company	(in millions)
APCo	$	70.2
I&M		41.3
OPCo		92.1

Ohio Power Co [Member]

Recognized Gross Seams Elimination Cost Allocation Revenue [Text Block]

Company	(in millions)
APCo	$	70.2
I&M		41.3
OPCo		92.1