Segment Information (Tables)

6 Months Ended

Jun. 30, 2018

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment

The Company's reportable segments with foreign operations include Northern Powergrid, whose business is principally in the United Kingdom, BHE Transmission, whose business includes operations in Canada, and BHE Renewables, whose business includes operations in the Philippines. Intersegment eliminations and adjustments, including the allocation of goodwill, have been made. Information related to the Company's reportable segments is shown below (in millions):

	Three-Month Periods				Six-Month Periods
	Ended June 30,				Ended June 30,
	2018		2017		2018		2017
Operating revenue:
PacifiCorp	$	1,193	$	1,245	$	2,377	$	2,526
MidAmerican Funding	718		659		1,465		1,355
NV Energy	750		753		1,367		1,337
Northern Powergrid	246		219		524		464
BHE Pipeline Group	236		192		612		507
BHE Transmission	177		158		357		324
BHE Renewables	246		220		400		364
HomeServices	1,273		956		2,034		1,541
BHE and Other(1)	154		152		297		302
Total operating revenue	$	4,993	$	4,554	$	9,433	$	8,720

Depreciation and amortization:
PacifiCorp	$	197		$	202	$	399		$	398
MidAmerican Funding	208			141		366			258
NV Energy	114			106		227			210
Northern Powergrid	64			52		127			101
BHE Pipeline Group	30			43		72			73
BHE Transmission	61			53		123			107
BHE Renewables	66			63		130			124
HomeServices	11			10		23			22
BHE and Other(1)	(1		)	—		(1		)	(1		)
Total depreciation and amortization	$	750		$	670	$	1,466		$	1,292

	Three-Month Periods						Six-Month Periods
	Ended June 30,						Ended June 30,
	2018			2017			2018			2017
Operating income:
PacifiCorp	$	284		$	333		$	531		$	672
MidAmerican Funding	87			131			166			233
NV Energy	144			192			233			290
Northern Powergrid	111			100			258			240
BHE Pipeline Group	57			54			283			262
BHE Transmission	81			73			162			150
BHE Renewables	104			84			132			99
HomeServices	108			110			100			112
BHE and Other(1)	(4		)	(32		)	(22		)	(46		)
Total operating income	972			1,045			1,843			2,012
Interest expense	(461		)	(457		)	(927		)	(915		)
Capitalized interest	15			10			27			20
Allowance for equity funds	24			18			45			35
Interest and dividend income	32			27			58			53
(Losses) gains on marketable securities, net	(387		)	2			(596		)	5
Other, net	1			(1		)	31			25
Total income before income tax expense and equity income	$	196		$	644		$	481		$	1,235

Interest expense:
PacifiCorp	$	96	$	95	$	192	$	190
MidAmerican Funding	61		59		124		118
NV Energy	59		58		117		116
Northern Powergrid	36		33		73		64
BHE Pipeline Group	10		10		20		22
BHE Transmission	42		39		85		80
BHE Renewables	49		52		101		102
HomeServices	6		1		10		2
BHE and Other(1)	102		110		205		221
Total interest expense	$	461	$	457	$	927	$	915

Operating revenue by country:
United States	$	4,570	$	4,177	$	8,548	$	7,924
United Kingdom	245		219		522		464
Canada	177		158		357		324
Philippines and other	1		—		6		8
Total operating revenue by country	$	4,993	$	4,554	$	9,433	$	8,720

Income before income tax expense and equity income by country:
United States	$	93	$	529	$	211	$	952
United Kingdom	49		62		161		164
Canada	41		38		82		80
Philippines and other	13		15		27		39
Total income before income tax expense and equity income by country	$	196	$	644	$	481	$	1,235

	As of
	June 30,		December 31,
	2018		2017
Assets:
PacifiCorp	$	23,124	$	23,086
MidAmerican Funding	18,998		18,444
NV Energy	14,311		13,903
Northern Powergrid	7,537		7,565
BHE Pipeline Group	5,194		5,134
BHE Transmission	8,644		9,009
BHE Renewables	8,343		7,687
HomeServices	3,213		2,722
BHE and Other(1)	1,577		2,658
Total assets	$	90,941	$	90,208

(1) The differences between the reportable segment amounts and the consolidated amounts, described as BHE and Other, relate principally to other entities, corporate functions and intersegment eliminations.

T

Schedule of Goodwill

e following table shows the change in the carrying amount of goodwill by reportable segment for the six-month period endedJune 30, 2018 (in millions):

										BHE Pipeline Group
			MidAmerican Funding		NV Energy		Northern Powergrid					BHE Transmission			BHE Renewables		HomeServices
	PacifiCorp																		Total
December 31, 2017	$	1,129	$	2,102	$	2,369	$	991		$	73	$	1,571		$	95	$	1,348	$	9,678
Acquisitions	—		—		—		—			—		—			—		75		75
Foreign currency translation	—		—		—		(16		)	—		(67		)	—		—		(83		)
June 30, 2018	$	1,129	$	2,102	$	2,369	$	975		$	73	$	1,504		$	95	$	1,423	$	9,670

MidAmerican Energy Company [Member]

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment

The following tables provide information on a reportable segment basis (in millions):

	Three-Month Periods						Six-Month Periods
	Ended June 30,						Ended June 30,
	2018			2017			2018			2017
Operating revenue:
Regulated electric	$	589		$	537		$	1,058		$	970
Regulated gas	127			120			402			382
Other	1			1			3			1
Total operating revenue	$	717		$	658		$	1,463		$	1,353
Operating income:
Regulated electric	$	78		$	125		$	114		$	188
Regulated gas	8			5			51			44
Other	1			—			1			—
Total operating income	87			130			166			232
Interest expense	(56		)	(53		)	(114		)	(106		)
Allowance for borrowed funds	4			3			8			5
Allowance for equity funds	13			8			23			14
Other, net	12			7			21			18
Income before income tax benefit	$	60		$	95		$	104		$	163

	As of
	June 30, 2018		December 31, 2017
Assets:
Regulated electric	$	15,612	$	14,914
Regulated gas	1,274		1,403
Other	—		1
Total assets	$	16,886	$	16,318

MidAmerican Funding, LLC and Subsidiaries [Domain]

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment

The following tables provide information on a reportable segment basis (in millions):

	Three-Month Periods						Six-Month Periods
	Ended June 30,						Ended June 30,
	2018			2017			2018			2017
Operating revenue:
Regulated electric	$	589		$	537		$	1,058		$	970
Regulated gas	127			120			402			382
Other	2			2			5			3
Total operating revenue	$	718		$	659		$	1,465		$	1,355
Operating income:
Regulated electric	$	78		$	125		$	114		$	188
Regulated gas	8			5			51			44
Other	1			1			1			1
Total operating income	87			131			166			233
Interest expense	(61		)	(59		)	(124		)	(118		)
Allowance for borrowed funds	4			3			8			5
Allowance for equity funds	13			8			23			14
Other, net	13			7			23			18
Income before income tax benefit	$	56		$	90		$	96		$	152

	As of
	June 30, 2018		December 31, 2017
Assets(1):
Regulated electric	$	16,803	$	16,105
Regulated gas	1,353		1,482
Other	16		34
Total assets	$	18,172	$	17,621

(1) Assets by reportable segment reflect the assignment of goodwill to applicable reporting units.

Sierra Pacific Power Company [Member]

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment

The following tables provide information on a reportable segment basis (in millions):

	Three-Month Periods						Six-Month Periods
	Ended June 30,						Ended June 30,
	2018			2017			2018			2017
Operating revenue:
Regulated electric	$	169		$	160		$	350		$	319
Regulated natural gas	19			17			60			51
Total operating revenue	$	188		$	177		$	410		$	370
Operating income:
Regulated electric	$	18		$	34		$	55		$	70
Regulated natural gas	1			2			11			12
Total operating income	19			36			66			82
Interest expense	(11		)	(11		)	(21		)	(22		)
Allowance for borrowed funds	1			—			1			—
Allowance for equity funds	1			—			2			1
Other, net	3			1			5			2
Income before income tax expense	$	13		$	26		$	53		$	63

	As of
	June 30,		December 31,
	2018		2017
Assets:
Regulated electric	$	3,089	$	3,103
Regulated natural gas	301		300
Regulated common assets(1)	78		10
Total assets	$	3,468	$	3,413

(1) Consists principally of cash and cash equivalents not included in either the regulated electric or regulated natural gas segments.