Consolidated Statements of Operations - SPPC - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Total operating revenue	$ 4,554	$ 4,121	$ 8,720	$ 8,162
Cost of sales	1,049	970	2,168	2,065
Total operating costs and expenses	3,505	3,267	6,700	6,355
Operating income	1,049	854	2,020	1,807
Interest expense	457	468	915	941
Allowance for equity funds	18	115	35	130
Other, net	(3)	1	22	11
Total other income (expense)	(405)	(222)	(785)	(632)
Income before income tax expense and equity income	644	632	1,235	1,175
Income tax expense	83	121	135	195
Net income attributable to BHE shareholders	574	536	1,130	1,026
Sierra Pacific Power Company [Member]
Electric Domestic Regulated Revenue	160	162	319	332
Gas Domestic Regulated Revenue	17	19	51	66
Total operating revenue	177	181	370	398
Cost of sales	61	65	117	135
Cost of Purchased Oil and Gas	6	7	22	37
Utilities Operating Expense, Maintenance and Operations	40	45	81	86
Utilities Operating Expense, Depreciation and Amortization	28	29	56	58
Utilities Operating Expense, Taxes	6	7	12	13
Total operating costs and expenses	141	153	288	329
Operating income	36	28	82	69
Interest expense	11	14	22	30
Allowance for Funds Used During Construction, Capitalized Interest	0	1	0	1
Allowance for equity funds	0	0	1	1
Other, net	1	0	2	1
Total other income (expense)	(10)	(13)	(19)	(27)
Income before income tax expense and equity income	26	15	63	42
Income tax expense	9	5	22	15
Net income attributable to BHE shareholders	$ 17	$ 10	$ 41	$ 27