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Income Taxes (Tables)
 6 Months Ended
Jun. 30, 2014
Income Tax Disclosure [Abstract]  
Reconciliation of income tax expense
The table below provides a reconciliation of income tax expense computed at the federal statutory income tax rate to the income tax provision:
 
Three months ended June 30,
 
Six months ended June 30,
(in millions)
2014
 
2013
 
2014
 
2013
Edison International:
 
 
 
 
 
 
 
Income (loss) from continuing operations before income taxes
$
466

 
$
(184
)
 
$
671

 
$
199

Provision for income tax at federal statutory rate of 35%
164

 
(64
)
 
235

 
70

Increase (decrease) in income tax from:
 
 
 
 
 
 
 
State tax, net of federal benefit
6

 
(20
)
 
7

 
(17
)
Property-related
(55
)
 
(22
)
 
(106
)
 
(64
)
Change related to uncertain tax positions
(21
)
 
11

 
(14
)
 
18

San Onofre OII settlement
—

 
—

 
(40
)
 
—

Other
(10
)
 
(7
)
 
(17
)
 
(11
)
Total income tax expense (benefit) from continuing operations
$
84

 
$
(102
)
 
$
65

 
$
(4
)
Effective tax rate
18.0
%
 
*

 
9.7
%
 
*

SCE:
 
 
 
 
 
 
 
Income (loss) from continuing operations before income taxes
$
490

 
$
(166
)
 
$
712

 
$
229

Provision for income tax at federal statutory rate of 35%
171

 
(58
)
 
249

 
80

Increase (decrease) in income tax from:
 
 
 
 
 
 
 
State tax, net of federal benefit
9

 
(23
)
 
10

 
(9
)
Property-related
(55
)
 
(22
)
 
(106
)
 
(64
)
Change related to uncertain tax positions
(17
)
 
11

 
(10
)
 
17

San Onofre OII settlement
—

 
—

 
(40
)
 
—

Other
(10
)
 
(7
)
 
(17
)
 
(11
)
Total income tax expense (benefit) from continuing operations
$
98

 
$
(99
)
 
$
86

 
$
13

Effective tax rate
20.0
%
 
*

 
12.1
%
 
5.7
%
* 
Not meaningful