Consolidated Statements of Operations - SPPC - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Total operating revenue	$ 4,993	$ 4,554	$ 9,433	$ 8,720
Cost of fuel and energy	1,126	1,049	2,294	2,168
Total operating expenses	4,021	3,509	7,590	6,708
Operating income	972	1,045	1,843	2,012
Interest expense	(461)	(457)	(927)	(915)
Allowance for equity funds	24	18	45	35
Other, net	1	(1)	31	25
Total other income (expense)	(776)	(401)	(1,362)	(777)
Income before income tax expense and equity income	196	644	481	1,235
Income tax (benefit) expense	(168)	83	(389)	135
Net income attributable to BHE shareholders	372	574	885	1,130
Sierra Pacific Power Company [Member]
Electric Domestic Regulated Revenue	169	160	350	319
Gas Domestic Regulated Revenue	19	17	60	51
Total operating revenue	188	177	410	370
Cost of fuel and energy	78	61	155	117
Cost of natural gas purchased for resale	8	6	31	22
Utilities Operating Expense, Maintenance and Operations	48	40	87	81
Utilities Operating Expense, Depreciation and Amortization	29	28	59	56
Utilities Operating Expense, Taxes	6	6	12	12
Total operating expenses	169	141	344	288
Operating income	19	36	66	82
Interest expense	(11)	(11)	(21)	(22)
Allowance for Funds Used During Construction, Capitalized Interest	1	0	1	0
Allowance for equity funds	1	0	2	1
Other, net	3	1	5	2
Total other income (expense)	(6)	(10)	(13)	(19)
Income before income tax expense and equity income	13	26	53	63
Income tax (benefit) expense	6	9	12	22
Net income attributable to BHE shareholders	$ 7	$ 17	$ 41	$ 41