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Preferred Securities (MEC) Preferred Securities (MEC) (MidAmerican Energy Company [Member])
6 Months Ended
Jun. 30, 2013
MidAmerican Energy Company [Member]
 
Class of Stock [Line Items]  
Preferred Stock [Text Block]
(4)
Preferred Securities

In April 2013, MidAmerican Energy redeemed all of the outstanding shares of its preferred securities at the stated redemption prices, which in aggregate totaled $28 million, plus accrued dividends.