Consolidated Balance Sheets (LLC) (MidAmerican Funding, LLC and Subsidiaries [Domain], USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
MidAmerican Funding, LLC and Subsidiaries [Domain]
Utility plant, net:
Electric	$ 10,587	$ 9,403
Gas	1,255	1,214
Gross utility plant in service	11,842	10,617
Accumulated depreciation and amortization	(4,120)	(3,849)
Utility plant in service, net	7,722	6,768
Construction work in progress	173	151
Total utility plant, net	7,895	6,919
Current assets:
Cash and cash equivalents	1	203
Receivables, net	376	386
Income tax receivables	270	51
Inventories	201	159
Other	58	60
Total current assets	906	859
Other assets:
Investments and nonregulated property, net	528	516
Goodwill	1,270	1,270
Regulatory assets	831	578
Other	175	168
Total other assets	2,804	2,532
Total assets	11,605	10,310
Capitalization:
MidAmerican Funding member's equity	3,972	3,673
Noncontrolling interests	28	28
Long-term debt, excluding current portion	3,440	3,190
Total capitalization	7,440	6,891
Current liabilities:
Current portion of long-term debt	0	200
Note payable to affiliate	231	14
Accounts payable	314	250
Taxes accrued	107	103
Interest accrued	41	56
Other	120	114
Total current liabilities	813	737
Other liabilities:
Deferred income taxes	1,918	1,370
Asset retirement obligations	293	216
Regulatory liabilities	719	721
Other	422	375
Total other liabilities	3,352	2,682
Total capitalization and liabilities	$ 11,605	$ 10,310