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Income Taxes
 3 Months Ended
Mar. 31, 2013
Income Tax Disclosure [Abstract]  
Income Tax Disclosure [Text Block]
(6)
Income Taxes

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:
 
Three-Month Periods
 
Ended March 31,
 
2013
 
2012
 
 
 
 
Federal statutory income tax rate
35
 %
 
35
 %
Income tax credits
(13
)
 
(10
)
State income tax, net of federal income tax benefit
2

 
1

Income tax effect of foreign income
(3
)
 
(3
)
Effects of ratemaking
(1
)
 
(1
)
Effective income tax rate
20
 %
 
22
 %


Income tax credits relate to production tax credits at MidAmerican Energy, PacifiCorp and Bishop Hill Energy II, LLC. Wind-powered generating facilities are eligible for federal renewable electricity production tax credits for 10 years from the date the facilities were placed in service.

Berkshire Hathaway includes the Company in its United States federal income tax return. For the three-month periods ended March 31, 2013 and 2012, the Company received net cash payments for income taxes from Berkshire Hathaway totaling $323 million and $- million, respectively.