Consolidated Statements of Operations - NPC - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Cost of sales	$ 970	$ 1,229	$ 2,065	$ 2,583
Total operating costs and expenses	3,267	3,441	6,355	6,732
Operating income	854	1,007	1,807	1,937
Interest expense	468	476	941	948
Allowance for equity funds	115	30	130	61
Other, net	1	10	11	36
Total other income (expense)	(222)	(388)	(632)	(748)
Income before income tax expense and equity income	632	619	1,175	1,189
Income tax expense	121	82	195	205
Net income attributable to BHE shareholders	536	558	1,026	1,027
Nevada Power Company [Member]
Electric Domestic Regulated Revenue	525	607	924	1,066
Cost of sales	199	291	367	517
Utilities Operating Expense, Maintenance and Operations	100	97	199	175
Utilities Operating Expense, Depreciation and Amortization	76	74	151	148
Utilities Operating Expense, Taxes	9	9	20	16
Total operating costs and expenses	384	471	737	856
Operating income	141	136	187	210
Interest expense	47	47	95	93
Allowance for Funds Used During Construction, Capitalized Interest	1	0	2	1
Allowance for equity funds	2	1	3	2
Other, net	5	4	10	11
Total other income (expense)	(39)	(42)	(80)	(79)
Income before income tax expense and equity income	102	94	107	131
Income tax expense	36	34	38	47
Net income attributable to BHE shareholders	$ 66	$ 60	$ 69	$ 84