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Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Dec. 31, 2017
Equity [Abstract]  
Components of Accumulated Other Comprehensive Loss
The changes in accumulated other comprehensive loss, net of tax, consist of:
 
Edison International
 
SCE
 
Years ended December 31,
(in millions)
2017
 
2016
 
2017
 
2016
Beginning balance
$
(53
)
 
$
(56
)
 
$
(20
)
 
$
(22
)
Pension and PBOP – net gain (loss):
 
 
 
 
 
 
 
Other comprehensive income (loss) before reclassifications
3

 
(4
)
 
(2
)
 
(2
)
Reclassified from accumulated other comprehensive loss1
7

 
6

 
3

 
3

Other
—

 
1

 
—

 
1

Change
10


3

 
1

 
2

Ending balance
$
(43
)
 
$
(53
)
 
$
(19
)
 
$
(20
)

1 
These items are included in the computation of net periodic pension and PBOP expenses. See Note 8 for additional information.