Significant Accounting Matters (Tables)

3 Months Ended

Mar. 31, 2017

Basic and Diluted EPS Calculations

	Three Months Ended March 31,
	2017				2016
	(in millions, except per share data)
			$/share				$/share
Earnings Attributable to AEP Common Shareholders	$	592.2			$	501.2
Weighted Average Number of Basic Shares Outstanding	491.7		$	1.20	491.1		$	1.02
Weighted Average Dilutive Effect of Stock-Based Awards	0.3		—		0.2		—
Weighted Average Number of Diluted Shares Outstanding	492.0		$	1.20	491.3		$	1.02