Schedule I MidAmerican Funding, LLC Condensed Financial Statements Condensed Statements of Cash Flows (Details) (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 cash flows from operating activities	$ (13)	$ (13)	$ (18)
Net cash flows from investing activities:
Net cash flows from investing activities	0	0	0
Net cash flows from financing activities:
Repayments of long-term debt	0	0	(200)
Net change in amounts payable to subsidiary	13	13	218
Net cash flows from financing activities	13	13	18
Net change in cash and cash equivalents	0	0	0
Cash and cash equivalents at beginning of year	0	0	0
Cash and cash equivalents at end of year	$ 0	$ 0	$ 0