Investments and Nonregulated Property, Net (LLC) (Tables) (MidAmerican Funding, LLC and Subsidiaries [Domain])

12 Months Ended

Dec. 31, 2012

MidAmerican Funding, LLC and Subsidiaries [Domain]

Investments and Nonregulated Property, Net [Line Items]

Investments and Nonregulated Property, Net [Table Text Block]

Investments and nonregulated property, net consists of the following amounts as of December 31 (in millions):

	2012		2011
Nuclear decommissioning trust	$	337	$	306
Rabbi trusts	173		161
Auction rate securities	21		16
Nonregulated property, net of accumulated depreciation of $14 and $13, respectively	22		28
Coal transportation property, net of accumulated depreciation of $- and $4, respectively	—		8
Other	8		9
Total	$	561	$	528