Consolidated Statements of Operations - NPC - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Operating revenue	$ 5,637	$ 5,283	$ 15,070	$ 14,003
Cost of sales	1,271	1,212	3,565	3,380
Total operating expenses	4,114	3,643	11,704	10,351
Operating income	1,523	1,640	3,366	3,652
Interest expense	(453)	(464)	(1,380)	(1,379)
Allowance for equity funds	30	24	75	59
Other, net	19	(17)	50	8
Total other income (expense)	(100)	(408)	(1,462)	(1,185)
Income before income tax expense and equity income	1,423	1,232	1,904	2,467
Income tax expense (benefit)	23	184	(366)	319
Net income attributable to BHE shareholders	1,401	1,068	2,286	2,198
Nevada Power Company [Member]
Operating revenue	820	819	1,777	1,785
Cost of sales	331	318	740	721
Operations and maintenance	146	96	344	276
Depreciation and amortization	85	77	253	231
Property and other taxes	11	10	31	29
Total operating expenses	573	501	1,368	1,257
Operating income	247	318	409	528
Interest expense	(38)	(44)	(128)	(132)
Allowance for Funds Used During Construction, Capitalized Interest	0	1	1	1
Allowance for equity funds	1	0	2	1
Other, net	7	4	16	16
Total other income (expense)	(30)	(39)	(109)	(114)
Income before income tax expense and equity income	217	279	300	414
Income tax expense (benefit)	53	103	72	151
Net income attributable to BHE shareholders	$ 164	$ 176	$ 228	$ 263