Risk Management and Hedging Activities (LLC) (MidAmerican Funding, LLC and Subsidiaries [Domain])

12 Months Ended

Dec. 31, 2012

MidAmerican Funding, LLC and Subsidiaries [Domain]

Derivatives, Fair Value [Line Items]

Derivative Instruments and Hedging Activities Disclosure [Text Block]

(13) Risk Management and Hedging Activities

Refer to Note 13 of MidAmerican Energy's Notes to Consolidated Financial Statements.