Consolidated Statements of Cash Flows (LLC) (MidAmerican Funding, LLC and Subsidiaries [Domain], USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
MidAmerican Funding, LLC and Subsidiaries [Domain]
Cash flows from operating activities:
Net income	$ 185	$ 122
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	170	211
Deferred income taxes and amortization of investment tax credits	16	16
Changes in other assets and liabilities	22	28
Other, net	(27)	0
Changes in other operating assets and liabilities:
Receivables, net	(1)	32
Inventories	50	24
Derivative collateral, net	(47)	5
Pension and other postretirement benefit plans	(1)	4
Accounts payable	(22)	(35)
Taxes accrued	33	(133)
Other current assets and liabilities	18	22
Net cash flows from operating activities	396	296
Cash flows from investing activities:
Utility construction expenditures	(432)	(327)
Purchases of available-for-sale securities	(47)	(44)
Proceeds from sales of available-for-sale securities	44	37
Other, net	6	18
Net cash flows from investing activities	(429)	(316)
Cash flows from financing activities:
Proceeds from long-term debt	847	0
Repayments of long-term debt	(356)	0
Redemption of preferred securities of subsidiary	0	(28)
Net change in note payable to affiliate	2	(119)
Other, net	(7)	0
Net cash flows from financing activities	486	(147)
Net change in cash and cash equivalents	453	(167)
Cash and cash equivalents at beginning of period	194	354
Cash and cash equivalents at end of period	$ 647	$ 187