Consolidated Balance Sheets - NPC - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 1,086	$ 1,108
Trade receivables, net	1,613	1,785
Inventories	902	882
Other current assets	796	814
Total current assets	4,972	5,243
Regulatory assets	4,182	4,155
Other assets	1,076	1,008
Total assets	84,246	83,618
Current liabilities:
Accounts payable	1,246	1,564
Accrued interest	486	469
Accrued property, income and other taxes	377	372
Regulatory Liability, Current	434	402
Other current liabilities	961	896
Total current liabilities	6,428	6,089
Regulatory liabilities	2,676	2,631
Deferred income taxes	12,797	12,685
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
Nevada Power Company [Member]
Current assets:
Cash and cash equivalents	347	536
Trade receivables, net	205	265
Inventories	80	80
Other current assets	51	46
Total current assets	683	927
Public Utilities, Property, Plant and Equipment, Net	6,996	6,996
Regulatory assets	1,051	1,057
Other assets	39	37
Total assets	8,769	9,017
Current liabilities:
Accounts payable	179	214
Accrued interest	38	54
Accrued property, income and other taxes	29	30
Regulatory Liability, Current	181	173
Long-term Debt and Financial and Capital Lease Obligations, Current	13	225
Customer Deposits, Current	58	58
Other current liabilities	38	28
Total current liabilities	536	782
Long-term Debt and Financial and Capital Lease Obligations	3,058	3,060
Regulatory liabilities	306	304
Deferred income taxes	1,407	1,405
Other long-term liabilities	296	303
Total liabilities	$ 5,603	$ 5,854
Commitments and contingencies
Equity:
Common stock	$ 0	$ 0
Additional paid-in capital	2,308	2,308
Retained earnings	861	858
Accumulated other comprehensive loss, net	(3)	(3)
Total shareholder's equity	3,166	3,163
Total liabilities and equity	$ 8,769	$ 9,017