Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income	$ 463	$ 215	$ 689	$ 423
Other comprehensive income (loss), net of tax:
Net loss arising during the period, net of income tax benefit	0	0	(2)	(3)
Amortization of net loss included in net income, net of income tax expense	3	4	10	12
Unrealized loss on derivatives qualified as cash flow hedges:
Unrealized holding loss arising during the period, net of income tax benefit	0	(16)	0	(19)
Reclassification adjustments included in net income, net of income tax benefit	0	1	0	(19)
Other comprehensive income (loss), net of tax	3	(11)	8	(29)
Comprehensive income	466	204	697	394
Less: Comprehensive income attributable to noncontrolling interests	25	25	75	66
Comprehensive income attributable to Edison International	441	179	622	328
Southern California Edison
Net income	502	388	717	802
Other comprehensive income (loss), net of tax:
Net loss arising during the period, net of income tax benefit	0	0	(4)	(4)
Amortization of net loss included in net income, net of income tax expense	2	1	5	5
Unrealized loss on derivatives qualified as cash flow hedges:
Other comprehensive income (loss), net of tax	2	1	1	1
Comprehensive income	$ 504	$ 389	$ 718	$ 803