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Transfer of Nonregulated Energy Operations (LLC)
6 Months Ended
Jun. 30, 2015
MidAmerican Funding, LLC and Subsidiaries [Domain]  
Notes to Consolidated Financial Statements [Line Items]  
Property, Plant and Equipment Disclosure [Text Block]
(10)
Transfer of Nonregulated Energy Operations

Refer to Note 10 of MidAmerican Energy's Notes to Financial Statements.