Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Operating revenue	$ 3,046	$ 2,653	$ 5,678	$ 5,068
Fuel	81	61	154	138
Purchased power	1,076	822	1,855	1,437
Operation and maintenance	967	951	1,840	1,899
Depreciation, decommissioning and amortization	418	400	832	788
Asset impairment and other	575	(1)	575	0
Asset impairment			575	0
Total operating expenses	3,117	2,233	5,256	4,262
Operating income (loss)	(71)	420	422	806
Interest and other income	34	40	63	73
Interest expense	(133)	(134)	(265)	(260)
Other expenses	(14)	(19)	(21)	(26)
Income (loss) from continuing operations before income taxes	(184)	307	199	593
Income tax expense (benefit)	(102)	100	(4)	192
Income (loss) from continuing operations	(82)	207	203	401
Income (loss) from discontinued operations, net of tax	12	(109)	24	(193)
Net income (loss)	(70)	98	227	208
Dividends on preferred and preference stock of utility	24	23	51	41
Other noncontrolling interests	0	1	0	0
Net income (loss) attributable to common shareholders	(94)	74	176	167
Amounts attributable to common shareholders:
Income (loss) from continuing operations, net of tax	(106)	183	152	360
Income (loss) from discontinued operations, net of tax	12	(109)	24	(193)
Net income (loss) attributable to common shareholders	(94)	74	176	167
Basic earnings (loss) per common share attributable to Edison International common shareholders:
Weighted-average shares of common stock outstanding (in shares)	326	326	326	326
Continuing operations (in dollars per share)	$ (0.33)	$ 0.56	$ 0.47	$ 1.10
Discontinued operations (in dollars per share)	$ 0.04	$ (0.33)	$ 0.07	$ (0.59)
Total (in dollars per share)	$ (0.29)	$ 0.23	$ 0.54	$ 0.51
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)	326	334	329	333
Continuing operations (in dollars per share)	$ (0.33)	$ 0.55	$ 0.47	$ 1.08
Discontinued operations (in dollars per share)	$ 0.04	$ (0.33)	$ 0.07	$ (0.58)
Total (in dollars per share)	$ (0.29)	$ 0.22	$ 0.54	$ 0.50
Dividends declared per common share (in dollars per share)	$ 0.3375	$ 0.325	$ 0.6750	$ 0.65
Southern California Edison
Operating revenue	3,045	2,651	5,674	5,063
Fuel	81	61	154	138
Purchased power	1,076	822	1,855	1,437
Operation and maintenance	879	866	1,665	1,717
Depreciation, decommissioning and amortization	417	399	832	788
Property and other taxes	72	73	151	156
Asset impairment	575	0	575	0
Total operating expenses	3,100	2,221	5,232	4,236
Operating income (loss)	(55)	430	442	827
Interest and other income	30	38	61	70
Interest expense	(127)	(127)	(253)	(249)
Other expenses	(14)	(19)	(21)	(26)
Income (loss) from continuing operations before income taxes	(166)	322	229	622
Income tax expense (benefit)	(99)	108	13	208
Net income (loss)	(67)	214	216	414
Dividends on preferred and preference stock of utility	24	23	51	41
Net income (loss) attributable to common shareholders	(91)	191	165	373
Amounts attributable to common shareholders:
Net income (loss) attributable to common shareholders	$ (91)	$ 191	$ 165	$ 373