Consolidated Balance Sheets - MEC - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 1,086	$ 1,108
Income taxes receivable	329	319
Inventories	902	882
Other current assets	796	814
Total current assets	4,972	5,243
Regulatory assets	4,182	4,155
Investments and restricted cash and investments	3,719	3,367
Other assets	1,076	1,008
Total assets	84,246	83,618
Current liabilities:
Accounts Payable, Current	1,246	1,564
Accrued interest	486	469
Accrued property, income and other taxes	377	372
Short-term debt	1,722	974
Other current liabilities	961	896
Total current liabilities	6,428	6,089
Deferred income taxes	12,797	12,685
Regulatory liabilities	2,676	2,631
Other long-term liabilities	2,843	2,854
Total liabilities	$ 61,122	$ 61,083
Commitments and contingencies
Equity:
Common stock	$ 0	$ 0
Additional paid-in capital	6,403	6,403
Retained earnings	17,396	16,906
Accumulated other comprehensive loss, net	(809)	(908)
Total shareholder's equity	22,990	22,401
Total liabilities and equity	84,246	83,618
MidAmerican Energy Company [Member]
Current assets:
Cash and cash equivalents	1	103
Receivables, Net, Current	198	342
Income taxes receivable	126	104
Inventories	239	238
Other current assets	28	58
Total current assets	592	845
Public Utilities, Property, Plant and Equipment, Net	11,759	11,723
Regulatory assets	1,078	1,044
Investments and restricted cash and investments	647	634
Other assets	138	139
Total assets	14,214	14,385
Current liabilities:
Accounts Payable, Current	197	426
Accrued interest	47	46
Accrued property, income and other taxes	100	125
Short-term debt	70	0
Long-term Debt and Capital Lease Obligations, Current	34	34
Other current liabilities	127	166
Total current liabilities	575	797
Long-term Debt and Capital Lease Obligations	4,234	4,237
Deferred income taxes	3,133	3,061
Regulatory liabilities	848	831
Asset Retirement Obligations, Noncurrent	484	488
Other long-term liabilities	248	266
Total liabilities	$ 9,522	$ 9,680
Commitments and contingencies
Equity:
Common stock	$ 0	$ 0
Additional paid-in capital	561	561
Retained earnings	4,133	4,174
Accumulated other comprehensive loss, net	(2)	(30)
Total shareholder's equity	4,692	4,705
Total liabilities and equity	$ 14,214	$ 14,385