Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Data (Unaudited) [Abstract]

Quarterly Financial Data (Unaudited)

Quarterly Financial Data (Unaudited)

(in millions)	Total		Fourth		Third		Second		First
	2011
Operating revenue	$	10,577	$	2,514	$	3,386	$	2,446	$	2,232
Operating income	2,123		474		764		443		443
Net income	1,144		262		421		226		236
Net income available for common stock	1,085		247		406		211		222
Common dividends declared	461		116		115		115		115

(in millions)	Total		Fourth		Third		Second		First
	2010
Operating revenue	$	9,983	$	2,479	$	3,098	$	2,247	$	2,159
Operating income	1,864		383		696		404		380
Net income	1,092		194		407		314		177
Net income available for common stock	1,040		181		394		301		164
Common dividends declared	200		100		100		—		—

Due to the seasonal nature of SCE'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.