Consolidated Statements of Operations - NPC - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Cost of sales	$ 1,187	$ 1,354	$ 3,252	$ 3,937
Total operating costs and expenses	3,507	3,533	9,862	10,265
Operating income	1,585	1,536	3,392	3,473
Interest expense	460	475	1,401	1,423
Allowance for equity funds	17	23	147	84
Other, net	15	(9)	26	27
Total other income (expense)	(375)	(416)	(1,007)	(1,164)
Income before income tax expense and equity income	1,210	1,120	2,385	2,309
Income tax expense	199	269	394	474
Net income attributable to BHE shareholders	1,036	874	2,062	1,901
Nevada Power Company [Member]
Electric Domestic Regulated Revenue	766	878	1,690	1,944
Cost of sales	251	362	618	879
Utilities Operating Expense, Maintenance and Operations	105	104	304	279
Utilities Operating Expense, Depreciation and Amortization	76	74	227	222
Utilities Operating Expense, Taxes	10	9	30	25
Total operating costs and expenses	442	549	1,179	1,405
Operating income	324	329	511	539
Interest expense	45	48	140	141
Allowance for Funds Used During Construction, Capitalized Interest	0	1	2	2
Allowance for equity funds	0	1	3	3
Other, net	7	4	17	15
Total other income (expense)	(38)	(42)	(118)	(121)
Income before income tax expense and equity income	286	287	393	418
Income tax expense	98	100	136	147
Net income attributable to BHE shareholders	$ 188	$ 187	$ 257	$ 271