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Preferred Securities of Subsidiary (LLC) (MidAmerican Funding, LLC and Subsidiaries [Domain])
12 Months Ended
Dec. 31, 2011
MidAmerican Funding, LLC and Subsidiaries [Domain]
 
Notes to Consolidated Financial Statements [Line Items]  
Preferred Stock [Text Block]
(8)
Preferred Securities of Subsidiary

Refer to Note 8 of MidAmerican Energy's Notes to Consolidated Financial Statements. Preferred securities of subsidiary are included in noncontrolling interests on the Consolidated Balance Sheets.