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Income Taxes Income Taxes (Tables)
12 Months Ended
Dec. 31, 2013
Income Taxes [Abstract]  
Components of Income Tax Expense (Benefit) [Table Text Block]
Income tax expense (benefit) consists of the following for the years ended December 31 (in millions):
 
2013
 
2012
 
2011
 
 
 
 
 
 
Current:
 
 
 
 
 
Federal
$
54

 
$
(112
)
 
$
(151
)
State
13

 
(3
)
 
(10
)
Total
67

 
(115
)
 
(161
)
 
 
 
 
 
 
Deferred:
 
 
 
 
 
Federal
204

 
283

 
338

State
29

 
33

 
40

Total
233

 
316

 
378

 
 
 
 
 
 
Investment tax credits
(3
)
 
(4
)
 
(4
)
Total income tax expense
$
297

 
$
197

 
$
213

Effective Income Tax Rate Reconciliation [Table Text Block]
A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax expense is as follows for the years ended December 31:
 
2013
 
2012
 
2011
 
 
 
 
 
 
Federal statutory income tax rate
35
 %
 
35
 %
 
35
 %
State income taxes, net of federal income tax benefit
3

 
3

 
2

Federal income tax credits(1)
(7
)
 
(9
)
 
(10
)
Other
(1
)
 
(2
)
 
1

Effective income tax rate
30
 %
 
27
 %
 
28
 %

(1)
Primarily attributable to the impact of federal renewable electricity production tax credits for qualifying wind-powered generating facilities that extend 10 years from the date the facilities were placed in service.
Components of Net Deferred Income Tax Liability [Table Text Block]
The net deferred income tax liability consists of the following as of December 31 (in millions):
 
2013
 
2012
 
 
 
 
Deferred income tax assets:
 
 
 
Regulatory liabilities
$
355

 
$
346

Employee benefits
98

 
219

Derivative contracts and unamortized contract values
76

 
109

State carryforwards
68

 
69

Loss contingencies
67

 
61

Asset retirement obligations
48

 
46

Other
86

 
106

 
798

 
956

Deferred income tax liabilities:
 
 
 
Property, plant and equipment
(4,528
)
 
(4,269
)
Regulatory assets
(525
)
 
(695
)
Other
(38
)
 
(48
)
 
(5,091
)
 
(5,012
)
Net deferred income tax liability
$
(4,293
)
 
$
(4,056
)
 
 
 
 
Reflected as:
 
 
 
Deferred income taxes - current assets
$
66

 
$
112

Deferred income taxes - noncurrent liabilities
(4,359
)
 
(4,168
)
 
$
(4,293
)
 
$
(4,056
)


Summary of Operating Loss Carryforwards [Table Text Block]
The following table provides PacifiCorp's net operating loss and tax credit carryforwards and expiration dates as of December 31, 2013 (in millions):
 
 
State
 
 
 
Net operating loss carryforwards
 
$
1,451

Deferred income taxes on net operating loss carryforwards
 
$
52

Expiration dates
 
2014 - 2032

 
 
 
Tax credit carryforwards
 
$
16

Expiration dates
 
2014 - indefinite