Consolidated Statements of Cash Flows - MidAmerican Funding - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Net Income (Loss) Attributable to Parent	$ 1,026	$ 1,027
Deferred income taxes and amortization of investment tax credits	291	390
Other Noncash Income (Expense)	72	(13)
Increase (Decrease) in Counterparty Collateral, Net	(23)	(5)
Pension and other postretirement benefit plans	(9)	(7)
Accrued property, income and other taxes	557	1,199
Net cash flows from operating activities	2,771	3,533
Payments to Acquire Property, Plant, and Equipment	2,103	2,624
Payments to Acquire Available-for-sale Securities	55	102
Proceeds from sales of available-for-sale securities	88	95
Payments for (Proceeds from) Other Investing Activities	46	(43)
Net cash flows from investing activities	(2,455)	(2,645)
Net proceeds from (repayments of) short-term debt	465	(405)
Other, net	(39)	(43)
Net cash flows from financing activities	(642)	(373)
Net change in cash and cash equivalents	(330)	515
Cash and cash equivalents at beginning of period	1,108	617
Cash and cash equivalents at end of period	778	1,132
MidAmerican Funding, LLC and Subsidiaries [Domain]
Net Income (Loss) Attributable to Parent	200	228
Utilities Operating Expense, Depreciation and Amortization	220	199
Deferred income taxes and amortization of investment tax credits	45	4
Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net	(21)	(24)
Other Noncash Income (Expense)	23	9
Increase (Decrease) in Accounts and Other Receivables	30	(42)
Increase (Decrease) in Inventories	18	(4)
Increase (Decrease) in Counterparty Collateral, Net	(3)	(35)
Pension and other postretirement benefit plans	(3)	(4)
Increase (Decrease) in Accounts Payable	(33)	(103)
Accrued property, income and other taxes	213	310
Increase (Decrease) in Other Current Assets and Liabilities, Net	(9)	(16)
Net cash flows from operating activities	604	746
Payments to Acquire Property, Plant, and Equipment	506	428
Payments to Acquire Available-for-sale Securities	54	61
Proceeds from sales of available-for-sale securities	55	56
Proceeds from Sale of Other Assets, Investing Activities	0	13
Payments for (Proceeds from) Other Investing Activities	0	(3)
Net cash flows from investing activities	(505)	(417)
Repayments of Long-term Debt	4	0
Increase (Decrease) in Notes Payable, Related Parties, Current	6	(6)
Net proceeds from (repayments of) short-term debt	0	(50)
Net cash flows from financing activities	2	(56)
Net change in cash and cash equivalents	101	273
Cash and cash equivalents at beginning of period	103	30
Cash and cash equivalents at end of period	$ 204	$ 303