Balance Sheets (MEC) (MidAmerican Energy Company [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
MidAmerican Energy Company [Member]
Utility plant, net:
Electric	$ 11,975	$ 11,936
Gas	1,370	1,365
Gross utility plant in service	13,345	13,301
Accumulated depreciation and amortization	(4,753)	(4,710)
Utility plant in service, net	8,592	8,591
Construction work in progress	786	737
Total utility plant, net	9,378	9,328
Current assets:
Cash and cash equivalents	113	194
Receivables, net	598	454
Income taxes receivable	69	50
Inventories	168	229
Other	97	64
Total current assets	1,045	991
Other assets:
Regulatory assets	798	748
Investments and nonregulated property, net	600	598
Other	191	204
Total other assets	1,589	1,550
Total assets	12,012	11,869
Capitalization:
MidAmerican Energy common shareholder's equity	4,017	3,845
Long-term debt, excluding current portion	3,203	3,202
Total capitalization	7,220	7,047
Current liabilities:
Current portion of long-term debt	350	350
Accounts payable	355	368
Taxes accrued	107	118
Interest accrued	30	37
Other	80	97
Total current liabilities	922	970
Other liabilities:
Deferred income taxes	2,332	2,294
Asset retirement obligations	435	430
Regulatory liabilities	880	875
Other	223	253
Total other liabilities	3,870	3,852
Total capitalization and liabilities	$ 12,012	$ 11,869