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Compensation and Benefit Plans (Tables)
 9 Months Ended
Sep. 30, 2014
Pension Plans
  
Pension and Other Postretirement Benefits  
Expense Components for Plans
Pension expense components for continuing operations are:
 
Three months ended
September 30,
 
Nine months ended
September 30,
(in millions)
2014
 
2013
 
2014
 
2013
Edison International:
 
 
 
 
 
 
 
Service cost
$
30

 
$
38

 
$
89

 
$
114

Interest cost
48

 
42

 
141

 
126

Expected return on plan assets
(61
)
 
(58
)
 
(178
)
 
(172
)
Settlement costs1
35

 
24

 
35

 
73

Amortization of prior service cost
1

 
1

 
4

 
3

Amortization of net loss2
1

 
15

 
3

 
45

Expense under accounting standards
$
54

 
$
62

 
$
94

 
$
189

Regulatory adjustment (deferred)
(2
)
 
(7
)
 
59

 
(21
)
Total expense recognized
$
52

 
$
55

 
$
153

 
$
168

SCE:
 
 
 
 
 
 
 
Service cost
$
29

 
$
37

 
$
87

 
$
111

Interest cost
44

 
41

 
132

 
123

Expected return on plan assets
(56
)
 
(57
)
 
(168
)
 
(171
)
Settlement costs1
33

 
24

 
33

 
72

Amortization of prior service cost
1

 
1

 
3

 
3

Amortization of net loss2
—

 
14

 
1

 
42

Expense under accounting standards
$
51

 
$
60

 
$
88

 
$
180

Regulatory adjustment (deferred)
(2
)
 
(7
)
 
59

 
(21
)
Total expense recognized
$
49

 
$
53

 
$
147

 
$
159


1 
Relates to lump-sum payments made to employees who retired from the SCE Retirement Plan (primarily due to workforce reductions described below). Includes the amount of net loss reclassified from other comprehensive loss. The amount reclassified for Edison International was $2 million for the three and nine months ended September 30, 2014 and zero and $2 million for the three and nine months ended September 30, 2013, respectively.
2 
Includes the amount of net loss reclassified from other comprehensive loss. The amount reclassified for Edison International and SCE was $2 million and $1 million, respectively, for the three months ended September 30, 2014, and $5 million and $3 million, respectively, for the nine months ended September 30, 2014. The amount reclassified for Edison International and SCE was $4 million and $3 million, respectively, for the three months ended September 30, 2013, and $11 million and $8 million, respectively, for the nine months ended September 30, 2013.
Postretirement Benefits Other Than Pensions
  
Pension and Other Postretirement Benefits  
Expense Components for Plans
PBOP expense components for continuing operations are:
 
Three months ended
September 30,
 
Nine months ended
September 30,
(in millions)
2014
 
2013
 
2014
 
2013
Edison International:
 
 
 
 
 
 
 
Service cost
$
10

 
$
14

 
$
32

 
$
42

Interest cost
28

 
26

 
82

 
78

Expected return on plan assets
(28
)
 
(30
)
 
(84
)
 
(90
)
Special termination benefits1
—

 
—

 
—

 
10

Amortization of prior service credit
(9
)
 
(9
)
 
(27
)
 
(27
)
Amortization of net loss
—

 
7

 
—

 
21

Total expense
$
1

 
$
8

 
$
3

 
$
34

SCE:
 
 
 
 
 
 
 
Service cost
$
10

 
$
14

 
$
32

 
$
41

Interest cost
27

 
26

 
81

 
78

Expected return on plan assets
(28
)
 
(30
)
 
(84
)
 
(90
)
Special termination benefits1
—

 
—

 
—

 
10

Amortization of prior service credit
(9
)
 
(9
)
 
(27
)
 
(27
)
Amortization of net loss
—

 
7

 
—

 
21

Total expense
$
—

 
$
8

 
$
2

 
$
33


1 
Due to the reduction in workforce, SCE has incurred costs for extended retiree health care coverage.
Southern California Edison
  
Workforce Reductions [Abstract]  
Workforce reductions
The following table provides a summary of changes in the accrued severance liability associated with these reductions:
(in millions)
 
 
Balance at January 1, 2014
 
$
54

Additions
 
9

Payments
 
(17
)
Other
 
(1
)
Balance at September 30, 2014
 
$
45