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Income Taxes (Tables)
 3 Months Ended
Mar. 31, 2020
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:
 
Edison International
 
SCE
 
Three months ended March 31,
(in millions)
2020
 
2019
 
2020
 
2019
Income from operations before income taxes
$
129

 
$
196

 
$
174

 
$
218

Provision for income tax at federal statutory rate of 21%
27

 
41

 
37

 
46

Decrease in income tax from:
 

 
 
 
 
 
 
State tax, net of federal benefit
(13
)
 
(7
)
 
(12
)
 
(5
)
Property-related
(78
)
 
(69
)
 
(78
)
 
(69
)
Change related to uncertain tax position1
(15
)
 
—

 
(17
)
 
—

Deferred tax re-measurement2
—

 
(69
)
 
—

 
(69
)
Other
(5
)
 
(8
)
 
(5
)
 
(8
)
Total income tax benefit
$
(84
)
 
$
(112
)
 
$
(75
)
 
$
(105
)
Effective tax rate
(65.1
)%
 
(57.1
)%
 
(43.1
)%
 
(48.2
)%

1 
Primarily relates to the re-measurement of uncertain tax positions related to the 2010 – 2012 California state tax filings currently under audit.
2  
Relates to changes in the allocation of deferred tax re-measurement between customers and shareholders as a result of a CPUC resolution issued in February 2019 to provide guidance on the implementation of Tax Reform. The resolution determined that customers are only entitled to excess deferred taxes which were included when setting rates, while other deferred tax re-measurement belongs to the shareholders.