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Asset Retirement Obligations (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]  
Asset Retirement Obligation Disclosure [Text Block]
(11)
Asset Retirement Obligations

Refer to Note 11 of MidAmerican Energy's Notes to Consolidated Financial Statements.