Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2010
Electric utility	$ 11,848		$ 10,574	$ 9,980
Other	14		14	16
Total operating revenue	11,862		10,588	9,996
Fuel	308		367	363
Purchased power	3,831		2,989	2,930
Operation and maintenance	3,904		3,718	3,608
Depreciation, decommissioning and amortization	1,562		1,427	1,274
(Gain) loss on sale of assets, disallowances and other	(28)		26	2
Total operating expenses	9,577		8,527	8,177
Operating income	2,285		2,061	1,819
Interest and dividend income	10		6	10
Equity in income from unconsolidated affiliates, net	1		0	2
Other income	138		141	141
Interest expense	(521)		(485)	(440)
Other expenses	(52)		(55)	(53)
Income from continuing operations before income taxes	1,861		1,668	1,479
Income tax expense	267		568	335
Income from continuing operations	1,594	[1],[2]	1,100	1,144
Income (loss) from discontinued operations, net of tax	(1,686)	[3]	(1,078)	164
Net income (loss)	(92)		22	1,308
Dividends on preferred and preference stock of utility	91		59	52
Net income attributable to common shareholders	(183)		(37)	1,256
Amounts attributable to common shareholders:
Income from continuing operations, net of tax	1,503		1,041	1,092
Income (loss) from discontinued operations, net of tax	(1,686)	[3]	(1,078)	164
Net income attributable to common shareholders	(183)		(37)	1,256
Basic earnings (loss) per common share attributable to Edison International common shareholders:
Weighted-average shares of common stock outstanding (in shares)	326		326	326
Continuing operations (in dollars per share)	$ 4.61		$ 3.20	$ 3.34
Discontinued operations (in dollars per share)	$ (5.17)		$ (3.31)	$ 0.50
Total (in dollars per share)	$ (0.56)		$ (0.11)	$ 3.84
Diluted earnings (loss) per common share attributable to Edison International common shareholders:
Weighted-average shares of common stock outstanding, including effect of dilutive securities (in shares)	330		329	329
Continuing operations (in dollars per share)	$ 4.55		$ 3.17	$ 3.32
Discontinued operations (in dollars per share)	$ (5.11)		$ (3.28)	$ 0.50
Total (in dollars per share)	$ (0.56)		$ (0.11)	$ 3.82
Dividends declared per common share (in dollars per share)	$ 1.3125		$ 1.285	$ 1.265
Southern California Edison
Total operating revenue	11,851		10,577	9,983
Fuel	308		367	363
Purchased power	3,831		2,989	2,930
Operation and maintenance	3,544		3,387	3,291
Depreciation, decommissioning and amortization	1,562		1,426	1,273
Property and other taxes	295		285	263
Disallowances and other	32		0	(1)
Total operating expenses	9,572		8,454	8,119
Operating income	2,279		2,123	1,864
Interest and dividend income	7		5	7
Other income	137		135	141
Interest expense	(499)		(463)	(429)
Other expenses	(50)		(55)	(51)
Income from continuing operations before income taxes	1,874		1,745	1,532
Income tax expense	214		601	440
Net income (loss)	1,660	[1],[2]	1,144	1,092
Dividends on preferred and preference stock of utility	91		59	52
Net income attributable to common shareholders	1,569		1,085	1,040
Amounts attributable to common shareholders:
Net income attributable to common shareholders	$ 1,569		$ 1,085	$ 1,040

[1] During the fourth quarter of 2012, SCE corrected errors, primarily related to deferred taxes, that resulted in a net earnings benefit of $33 million which were not considered material to the current and prior period consolidated financial statements.

[2] During the fourth quarter of 2012, SCE implemented the 2012 GRC Decision which resulted in an earnings impact of approximately $500 million.

[3] During the fourth quarter of 2012, Edison International recorded a full impairment of its $1.2 billion investment in EME. See Note 17 for further information.