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Risk Management and Hedging Activities (LLC) (MidAmerican Funding, LLC and Subsidiaries [Domain])
6 Months Ended
Jun. 30, 2013
MidAmerican Funding, LLC and Subsidiaries [Domain]
 
Derivatives, Fair Value [Line Items]  
Derivative Instruments and Hedging Activities Disclosure [Text Block]
(8)
Risk Management and Hedging Activities

Refer to Note 8 of MidAmerican Energy's Notes to Financial Statements.