Significant Accounting Matters (Tables)

6 Months Ended

Jun. 30, 2017

Basic and Diluted EPS Calculations

	Three Months Ended June 30,
	2017				2016
	(in millions, except per share data)
			$/share				$/share
Income from Continuing Operations	$	376.2			$	506.4
Less: Net Income Attributable to Noncontrolling Interests	1.2				1.8
Earnings Attributable to AEP Common Shareholders from Continuing Operations	$	375.0			$	504.6
Weighted Average Number of Basic Shares Outstanding	491.8		$	0.76	491.5		$	1.03
Weighted Average Dilutive Effect of Stock-Based Awards	0.8		—		0.1		—
Weighted Average Number of Diluted Shares Outstanding	492.6		$	0.76	491.6		$	1.03

	Six Months Ended June 30,
	2017					2016
	(in millions, except per share data)
			$/share					$/share
Income from Continuing Operations	$	970.4				$	1,009.5
Less: Net Income Attributable to Noncontrolling Interests	3.2					3.7
Earnings Attributable to AEP Common Shareholders from Continuing Operations	$	967.2				$	1,005.8
Weighted Average Number of Basic Shares Outstanding	491.8		$	1.97		491.3		$	2.05
Weighted Average Dilutive Effect of Stock-Based Awards	0.5		(0.01		)	0.2		—
Weighted Average Number of Diluted Shares Outstanding	492.3		$	1.96		491.5		$	2.05

Supplementary Information [Text Block]

	Six Months Ended June 30,
Cash Flow Information	2017			2016
	(in millions)
Cash Paid (Received) for:
Interest, Net of Capitalized Amounts	$	442.3		$	425.4
Income Taxes	(21.2		)	26.2
Noncash Investing and Financing Activities:
Acquisitions Under Capital Leases	23.6			52.7
Construction Expenditures Included in Current Liabilities as of June 30,	597.9			554.2
Construction Expenditures Included in Noncurrent Liabilities as of June 30,	71.8			—
Acquisition of Nuclear Fuel Included in Current Liabilities as of June 30,	26.0			41.5
Expected Reimbursement for Spent Nuclear Fuel Dry Cask Storage	2.4			—