Consolidated Statements of Cash Flows (LLC) (MidAmerican Funding, LLC and Subsidiaries [Domain], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
MidAmerican Funding, LLC and Subsidiaries [Domain]
Cash flows from operating activities:
Net income	$ 155	$ 100
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	85	107
Deferred income taxes and amortization of investment tax credits	(16)	7
Changes in other assets and liabilities	12	13
Other, net	(5)	(3)
Changes in other operating assets and liabilities:
Receivables, net	(155)	(17)
Inventories	61	35
Derivative collateral, net	(32)	3
Pension and other postretirement benefit plans	0	3
Accounts payable	44	(2)
Taxes accrued	(32)	(212)
Other current assets and liabilities	(25)	(8)
Net cash flows from operating activities	92	26
Cash flows from investing activities:
Utility construction expenditures	(179)	(163)
Purchases of available-for-sale securities	(23)	(29)
Proceeds from sales of available-for-sale securities	22	26
Other, net	6	1
Net cash flows from investing activities	(174)	(165)
Cash flows from financing activities:
Net change in note payable to affiliate	2	(118)
Net cash flows from financing activities	2	(118)
Net change in cash and cash equivalents	(80)	(257)
Cash and cash equivalents at beginning of period	194	354
Cash and cash equivalents at end of period	$ 114	$ 97