Consolidated Statements of Operations - SPPC - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Total 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
Sierra Pacific Power Company [Member]
Total operating revenue	239	230	649	600
Operations and maintenance	53	41	140	122
Depreciation and amortization	30	29	89	85
Property and other taxes	6	6	18	18
Total operating expenses	183	156	527	444
Operating income	56	74	122	156
Interest expense	(12)	(11)	(33)	(33)
Allowance for Funds Used During Construction, Capitalized Interest	0	1	1	1
Allowance for equity funds	1	1	3	2
Other, net	3	3	8	5
Total other income (expense)	(8)	(6)	(21)	(25)
Income before income tax expense and equity income	48	68	101	131
Income tax expense (benefit)	13	24	25	46
Net income attributable to BHE shareholders	35	44	76	85
Regulated electric | Sierra Pacific Power Company [Member]
Total operating revenue	225	215	575	534
Cost of sales	90	76	245	193
Regulated natural gas | Sierra Pacific Power Company [Member]
Total operating revenue	14	15	74	66
Cost of sales	$ 4	$ 4	$ 35	$ 26