Short-term Debt and Revolving Credit Facilities (MEC) (MidAmerican Energy Company [Member])

12 Months Ended

Dec. 31, 2013

MidAmerican Energy Company [Member]

Line of Credit Facility [Line Items]

Short-term Debt [Text Block]

(9)Short-Term Debt and Revolving Credit Facilities

Interim financing of working capital needs and the construction program is obtained from unaffiliated parties through the sale of commercial paper or short-term borrowing from banks. In March 2013, MidAmerican Energy replaced its $530 million unsecured revolving credit facility, which had been set to expire in July 2013, with a $600 million unsecured revolving credit facility expiring in March 2018. The new credit facility, which supports MidAmerican Energy's commercial paper program and its variable-rate tax-exempt bond obligations and provides for the issuance of letters of credit, has a variable interest rate based on the London Interbank Offered Rate ("LIBOR") or a base rate, at MidAmerican Energy's option, plus a spread that varies based on MidAmerican Energy's credit ratings for senior unsecured long-term debt securities. In addition, MidAmerican Energy has a $5 million unsecured credit facility, which expires in June 2014 and has a variable interest rate based on LIBOR plus a spread. The $600 million credit facility requires that MidAmerican Energy's ratio of consolidated debt, including current maturities, to total capitalization not exceed 0.65 to 1.0 as of the last day of any quarter. As of December 31, 2013, MidAmerican Energy was in compliance with the covenants of its credit facilities. MidAmerican Energy has authority from the FERC to issue commercial paper and bank notes aggregating $600 million through October 30, 2014.

The following table summarizes MidAmerican Energy's availability under its two unsecured revolving credit facilities as of December 31 (in millions):

	2013			2012
Revolving credit facilities	$	605		$	535
Less:
Variable-rate tax-exempt bond support	(195		)	(195		)
Net revolving credit facilities	$	410		$	340