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Employee Benefit Plans (LLC)
 6 Months Ended
Jun. 30, 2015
MidAmerican Funding, LLC and Subsidiaries [Domain]  
Defined Benefit Plan Disclosure [Line Items]  
Pension and Other Postretirement Benefits Disclosure [Text Block]
(5)
Employee Benefit Plans

Refer to Note 5 of MidAmerican Energy's Notes to Financial Statements.