Unaudited Quarterly Financial Information (Tables)

12 Months Ended

Dec. 31, 2011

Unaudited Quarterly Financial Information (Tables) [Abstract]

Unaudited Quarterly Financial Information

			2011 Quarterly Periods Ended
			March 31		June 30		September 30			December 31
			(in millions - except per share amounts)
Total Revenues			$	3,730	$	3,609	$	4,333		$	3,444
Operating Income				832		717		890	(a)		343	(b)
Income Before Extraordinary Items				355		353		657	(a) (c)		211	(b) (c)
Extraordinary Items, Net of Tax				-		-		273	(c)		100	(c)
Net Income				355		353		930	(a) (c)		311	(b) (c)
Amounts Attributable to AEP Common Shareholders:
		Income Before Extraordinary Items		353		352		655	(a) (c)		208	(b) (c)
		Extraordinary Items, Net of Tax		-		-		273	(c)		100	(c)
		Net Income		353		352		928	(a) (c)		308	(b) (c)
Basic Earnings per Share Attributable to AEP
	Common Shareholders:
		Earnings per Share Before Extraordinary Items		0.73		0.73		1.35			0.43
		Extraordinary Items per Share		-		-		0.57			0.20
		Earnings per Share (f)		0.73		0.73		1.92			0.63
Diluted Earnings per Share Attributable to AEP
	Common Shareholders:
		Earnings per Share Before Extraordinary Items		0.73		0.73		1.35			0.43
		Extraordinary Items per Share		-		-		0.57			0.20
		Earnings per Share (f)		0.73		0.73		1.92			0.63

			2010 Quarterly Periods Ended
			March 31		June 30			September 30		December 31
			(in millions - except per share amounts)
Total Revenues			$	3,569	$	3,360		$	4,064	$	3,434
Operating Income				758		394	(d)		1,025		486	(e)
Net Income				346		137	(d)		557		178	(e)
Amounts Attributable to AEP Common Shareholders:
		Net Income		344		136	(d)		555		176	(e)
Basic Earnings per Share Attributable to AEP
	Common Shareholders:
		Earnings per Share (f)		0.72		0.28			1.16		0.37
Diluted Earnings per Share Attributable to AEP
	Common Shareholders:
		Earnings per Share (f)		0.72		0.28			1.16		0.37

(a)       Includes pretax write-offs for plant impairments (see Note 6) and a provision for refund of POLR charges in Ohio (see Note 3).

(b)       Includes a refund of POLR charges in Ohio(see Note 3) and OPCo adjustments for fuel disallowances, the 2010 SEETand the obligation to contribute to Partnership with Ohio and Ohio Growth Fund. Also includes a write-off for SWEPCo's Turk Plant (see Note 6).

(c)       See "TCC Texas Restructuring" section of Note 2 and "Texas Restructuring" section of Note 3 for discussion of gains recorded in the third and fourth quarters of 2011.

(d)       See Note 16 for discussion of expenses related to cost reduction initiatives in 2010.

(e)        Includes a $43 million refund provision for the 2009 SEET in addition to various other provisions for certain regulatory and legal matters.

(f)       Quarterly Earnings per Share amounts are meant to be stand-alone calculations and are not always additive to full-year amount due to rounding.