Consolidated Statements of Operations - NPC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cost of sales	$ 1,168	$ 1,119
Total operating costs and expenses	3,569	3,199
Operating income	871	967
Interest expense	(466)	(458)
Allowance for equity funds	21	17
Other, net	30	26
Total other income (expense)	(586)	(376)
Income before income tax expense and equity income	285	591
Income tax (benefit) expense	(221)	52
Net income attributable to BHE shareholders	513	556
Nevada Power Company [Member]
Electric Domestic Regulated Revenue	395	392
Cost of sales	170	165
Utilities Operating Expense, Maintenance and Operations	91	88
Utilities Operating Expense, Depreciation and Amortization	84	76
Utilities Operating Expense, Taxes	10	10
Total operating costs and expenses	355	339
Operating income	40	53
Interest expense	(45)	(44)
Allowance for equity funds	1	1
Other, net	4	5
Total other income (expense)	(40)	(38)
Income before income tax expense and equity income	0	15
Income tax (benefit) expense	0	5
Net income attributable to BHE shareholders	$ 0	$ 10