Schedule I MidAmerican Funding, LLC Condensed Financial Statements Condensed Statements of Comprehensive Income (MidAmerican Funding LLC [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
MidAmerican Funding LLC [Member]
Condensed Financial Statements, Captions [Line Items]
Net income	$ 340	$ 342	$ 304
Total other comprehensive income (loss), net of tax	13	10	(5)
Comprehensive income attributable to MidAmerican Funding	$ 353	$ 352	$ 299