Consolidated Statements of Income (USD $) In Millions, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Electric utility	$ 2,445	$ 2,246	$ 4,676	$ 4,405
Competitive power generation	538	495	1,090	1,147
Total operating revenue	2,983	2,741	5,766	5,552
Fuel	256	254	515	549
Purchased power	649	612	1,158	1,220
Operations and maintenance	1,263	1,144	2,412	2,183
Depreciation, decommissioning and amortization	435	380	852	749
Total operating expenses	2,603	2,390	4,937	4,701
Operating income	380	351	829	851
Interest and dividend income	30	4	34	23
Equity in income from unconsolidated affiliates - net	18	20	12	39
Other income	42	36	83	70
Interest expense	(203)	(175)	(398)	(343)
Other expenses	(13)	(16)	(25)	(28)
Income from continuing operations before income taxes	254	220	535	612
Income tax expense (benefit)	62	(136)	127	14
Income from continuing operations	192	356	408	598
Income (loss) from discontinued operations, net of tax	(1)	1	(3)	8
Net income	191	357	405	606
Dividends on preferred and preference stock of utility	15	13	29	26
Net income attributable to Edison International common shareholders	176	344	376	580
Amounts attributable to Edison International common shareholders:
Income from continuing operations, net of tax	177	343	379	572
Income (loss) from discontinued operations, net of tax	(1)	1	(3)	8
Net income attributable to Edison International common shareholders	$ 176	$ 344	$ 376	$ 580
Basic earnings 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)	$ 0.54	$ 1.05	$ 1.16	$ 1.75
Discontinued operations (in dollars per share)			$ (0.01)	$ 0.02
Total (in dollars per share)	$ 0.54	$ 1.05	$ 1.15	$ 1.77
Diluted earnings per common share attributable to Edison International common shareholders:
Weighted-average shares of common stock outstanding, including effect of dilutive securities (in shares)	329	327	328	327
Continuing operations (in dollars per share)	$ 0.54	$ 1.05	$ 1.16	$ 1.75
Discontinued operations (in dollars per share)			$ (0.01)	$ 0.02
Total (in dollars per share)	$ 0.54	$ 1.05	$ 1.15	$ 1.77
Dividends declared per common share (in dollars per share)	$ 0.320	$ 0.315	$ 0.640	$ 0.630