Employee Benefit Plans (LLC) (Tables) (MidAmerican Funding, LLC and Subsidiaries [Domain])

12 Months Ended

Dec. 31, 2012

MidAmerican Funding, LLC and Subsidiaries [Domain]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

Pension and postretirement costs allocated by MidAmerican Funding to its parent and other affiliates in each of the years ended December 31, were as follows (in millions):

	2012			2011			2010
Pension costs	$	5		$	5		$	7
Other postretirement costs	(2		)	(1		)	(1		)