Segment Information

9 Months Ended

Sep. 30, 2020

Segment Reporting Information [Line Items]

Segment Reporting Disclosure [Text Block]

Segment Information

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				Nine-Month Periods
	Ended September 30,				Ended September 30,
	2020		2019		2020		2019
Operating revenue:
PacifiCorp	$	1,479	$	1,367	$	3,829	$	3,793
MidAmerican Funding	812		797		2,114		2,299
NV Energy	1,042		1,054		2,359		2,389
Northern Powergrid	246		230		733		736
BHE Pipeline Group	264		226		890		809
BHE Transmission	175		184		516		527
BHE Renewables	309		329		731		745
HomeServices	1,742		1,307		3,828		3,419
BHE and Other(1)	124		150		332		431
Total operating revenue	$	6,193	$	5,644	$	15,332	$	15,148

Depreciation and amortization:
PacifiCorp	$	234	$	272	$	696	$	686
MidAmerican Funding	179		184		530		540
NV Energy	128		121		377		361
Northern Powergrid	69		60		195		186
BHE Pipeline Group	45		28		134		85
BHE Transmission	61		59		176		177
BHE Renewables	72		71		214		210
HomeServices	11		11		34		35
BHE and Other(1)	1		—		1		(2		)
Total depreciation and amortization	$	800	$	806	$	2,357	$	2,278

	Three-Month Periods						Nine-Month Periods
	Ended September 30,						Ended September 30,
	2020			2019			2020			2019
Operating income:
PacifiCorp	$	361		$	333		$	851		$	885
MidAmerican Funding	232			234			444			444
NV Energy	347			313			587			547
Northern Powergrid	106			98			327			337
BHE Pipeline Group	101			87			442			398
BHE Transmission	79			91			236			244
BHE Renewables	143			183			244			298
HomeServices	239			113			336			209
BHE and Other(1)	(61		)	(2		)	(65		)	(34		)
Total operating income	1,547			1,450			3,402			3,328
Interest expense	(504		)	(475		)	(1,490		)	(1,428		)
Capitalized interest	24			23			60			56
Allowance for equity funds	50			56			122			126
Interest and dividend income	17			25			57			91
Gains (losses) on marketable securities, net	1,797			(234		)	2,407			(296		)
Other, net	36			2			61			67
Total income before income tax expense (benefit) and equity loss	$	2,967		$	847		$	4,619		$	1,944

Interest expense:
PacifiCorp	$	107	$	101	$	319	$	299
MidAmerican Funding	79		74		238		223
NV Energy	56		55		171		173
Northern Powergrid	34		33		97		102
BHE Pipeline Group	15		14		44		38
BHE Transmission	38		40		111		118
BHE Renewables	41		44		125		132
HomeServices	1		6		9		20
BHE and Other(1)	133		108		376		323
Total interest expense	$	504	$	475	$	1,490	$	1,428

Operating revenue by country:
United States	$	5,773	$	5,222	$	14,086	$	13,875
United Kingdom	246		229		733		734
Canada	174		183		512		526
Philippines and other	—		10		1		13
Total operating revenue by country	$	6,193	$	5,644	$	15,332	$	15,148

Income before income tax expense (benefit) and equity loss by country:
United States	$	2,839	$	728	$	4,220	$	1,546
United Kingdom	82		49		250		228
Canada	44		55		130		134
Philippines and other	2		15		19		36
Total income before income tax expense (benefit) and equity loss by country	$	2,967	$	847	$	4,619	$	1,944

	As of
	September 30,		December 31,
	2020		2019
Assets:
PacifiCorp	$	26,686	$	24,861
MidAmerican Funding	23,372		22,664
NV Energy	14,705		14,128
Northern Powergrid	8,491		8,385
BHE Pipeline Group	6,313		6,100
BHE Transmission	8,799		8,776
BHE Renewables	11,630		9,961
HomeServices	5,366		3,846
BHE and Other(1)	3,824		1,330
Total assets	$	109,186	$	100,051

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

The following table shows the change in the carrying amount of goodwill by reportable segment for the nine-month period endedSeptember 30, 2020 (in millions):

										BHE Pipeline Group
	PacifiCorp		MidAmerican Funding		NV Energy		Northern Powergrid					BHE Transmission			BHE Renewables		HomeServices
																			Total
December 31, 2019	$	1,129	$	2,102	$	2,369	$	978		$	73	$	1,520		$	95	$	1,456	$	9,722
Foreign currency translation	—		—		—		(18		)	—		(37		)	—		—		(55		)
September 30, 2020	$	1,129	$	2,102	$	2,369	$	960		$	73	$	1,483		$	95	$	1,456	$	9,667

MidAmerican Energy Company [Member]

Segment Reporting Information [Line Items]

Segment Reporting Disclosure [Text Block]

Segment Information

MidAmerican Energy has identified two reportable segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by regulatory agencies; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance. Common operating costs, interest income, interest expense and income tax expense are allocated to each segment based on certain factors, which primarily relate to the nature of the cost.

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

	Three-Month Periods						Nine-Month Periods
	Ended September 30,						Ended September 30,
	2020			2019			2020			2019
Operating revenue:
Regulated electric	$	728		$	712		$	1,717		$	1,792
Regulated natural gas	80			76			384			482
Other	4			8			5			23
Total operating revenue	$	812		$	796		$	2,106		$	2,297
Operating income:
Regulated electric	$	238		$	243		$	398		$	396
Regulated natural gas	(6		)	(8		)	40			45
Other	—			(1		)	—			2
Total operating income	232			234			438			443
Interest expense	(74		)	(68		)	(224		)	(207		)
Allowance for borrowed funds	5			7			12			20
Allowance for equity funds	16			27			33			59
Other, net	14			4			30			34
Income before income tax benefit	$	193		$	204		$	289		$	349

	As of
	September 30, 2020		December 31, 2019
Assets:
Regulated electric	$	19,782	$	19,093
Regulated natural gas	1,479		1,468
Other	7		3
Total assets	$	21,268	$	20,564

MidAmerican Funding, LLC and Subsidiaries [Domain]

Segment Reporting Information [Line Items]

Segment Reporting Disclosure [Text Block]

Segment Information

MidAmerican Funding has identified two reportable segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by regulatory agencies; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance. Common operating costs, interest income, interest expense and income tax expense are allocated to each segment based on certain factors, which primarily relate to the nature of the cost. "Other" in the tables below consists of the financial results and assets of nonregulated operations, MHC and MidAmerican Funding.

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

	Three-Month Periods						Nine-Month Periods
	Ended September 30,						Ended September 30,
	2020			2019			2020			2019
Operating revenue:
Regulated electric	$	728		$	712		$	1,717		$	1,792
Regulated natural gas	80			76			384			482
Other	4			9			13			25
Total operating revenue	$	812		$	797		$	2,114		$	2,299
Operating income:
Regulated electric	$	238		$	243		$	398		$	396
Regulated natural gas	(6		)	(8		)	40			45
Other	—			(1		)	6			3
Total operating income	232			234			444			444
Interest expense	(79		)	(74		)	(238		)	(223		)
Allowance for borrowed funds	5			7			12			20
Allowance for equity funds	16			27			33			59
Other, net	15			5			30			36
Income before income tax benefit	$	189		$	199		$	281		$	336

	As of
	September 30, 2020		December 31, 2019
Assets(1):
Regulated electric	$	20,973	$	20,284
Regulated natural gas	1,558		1,547
Other	17		9
Total assets	$	22,548	$	21,840

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

Sierra Pacific Power Company [Member]

Segment Reporting Information [Line Items]

Segment Reporting Disclosure [Text Block]

Segment Information

Sierra Pacific has identified two reportable operating segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by the PUCN; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance.

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

	Three-Month Periods						Nine-Month Periods
	Ended September 30,						Ended September 30,
	2020			2019			2020			2019
Operating revenue:
Regulated electric	$	220		$	232		$	569		$	586
Regulated natural gas	15			16			83			75
Total operating revenue	$	235		$	248		$	652		$	661
Operating income:
Regulated electric	$	66		$	67		$	119		$	119
Regulated natural gas	2			—			12			12
Total operating income	68			67			131			131
Interest expense	(14		)	(12		)	(42		)	(36		)
Allowance for borrowed funds	—			—			1			1
Allowance for equity funds	1			—			3			2
Other, net	3			1			7			4
Income before income tax expense	$	58		$	56		$	100		$	102

	As of
	September 30,		December 31,
	2020		2019
Assets:
Regulated electric	$	3,515	$	3,319
Regulated natural gas	318		308
Other(1)	36		44
Total assets	$	3,869	$	3,671

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