Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (Unaudited)

Quarterly Financial Data (Unaudited)

	2011
(in millions, except per-share amounts)	Total			Fourth			Third		Second			First
Operating revenue	$	12,760		$	3,013		$	3,981	$	2,983		$	2,782
Operating income (loss)	320			(1,319		)	810		380			450
Income (loss) from continuing operations	24			(824		)	441		192			216
Income (loss) from discontinued operations – net	(3		)	—			—		(1		)	(2		)
Net income (loss) attributable to common shareholders	(37		)	(839		)	426		176			200
Basic earnings (loss) per share:
Continuing operations	(0.10		)	(2.57		)	1.31		0.54			0.62
Discontinued operations	(0.01		)	—			—		—			(0.01		)
Total	(0.11		)	(2.57		)	1.31		0.54			0.61
Diluted earnings (loss) per share1:
Continuing operations	(0.10		)	(2.57		)	1.30		0.54			0.62
Discontinued operations	(0.01		)	—			—		—			(0.01		)
Total	(0.11		)	(2.57		)	1.30		0.54			0.61
Dividends declared per share	1.285			0.325			0.320		0.320			0.320
Common stock prices:
High	41.57			41.57			39.25		40.15			39.20
Low	32.64			35.63			32.64		36.54			35.12
Close	41.40			41.40			38.25		38.75			36.59

	2010
(in millions, except per-share amounts)	Total		Fourth		Third			Second		First
Operating revenue	$	12,409	$	3,069	$	3,788		$	2,741	$	2,810
Operating income	2,126		414		862			351		498
Income from continuing operations	1,303		178		527			356		243
Income (loss) from discontinued operations – net	4		—		(4		)	1		6
Net income attributable to common shareholders	1,256		166		510			344		236
Basic earnings (loss) per share:
Continuing operations	3.83		0.51		1.57			1.05		0.70
Discontinued operations	0.01		—		(0.01		)	—		0.02
Total	3.84		0.51		1.56			1.05		0.72
Diluted earnings (loss) per share:
Continuing operations	3.81		0.51		1.57			1.05		0.70
Discontinued operations	0.01		—		(0.01		)	—		0.02
Total	3.82		0.51		1.56			1.05		0.72
Dividends declared per share	1.265		0.320		0.315			0.315		0.315
Common stock prices:
High	39.37		39.37		35.15			34.74		35.82
Low	30.37		34.38		31.06			30.37		31.88
Close	38.60		38.60		34.39			31.72		34.17

¹  Due to a loss for the three months and year ended December 31, 2011, there are no incremental shares in the diluted computation because such shares would be considered antidilutive.

Due to the seasonal nature of Edison International's business, a significant amount of revenue and earnings are recorded in the third quarter of each year. As a result of rounding, the total of the four quarters does not always equal the amount for the year.