Segment Information (Tables)

12 Months Ended

Dec. 31, 2015

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Information related to the Company's reportable segments is shown below (in millions):



	Years Ended December 31,
	2015			2014			2013
Operating revenue:
PacifiCorp	$	5,232		$	5,252		$	5,147
MidAmerican Funding	3,420			3,762			3,413
NV Energy	3,351			3,241			(20		)
Northern Powergrid	1,140			1,283			1,025
BHE Pipeline Group	1,016			1,078			952
BHE Transmission	592			62			—
BHE Renewables	728			623			355
HomeServices	2,526			2,144			1,809
BHE and Other⁽¹⁾	(125		)	(119		)	(46		)
Total operating revenue	$	17,880		$	17,326		$	12,635

Depreciation and amortization:
PacifiCorp	$	780		$	745		$	692
MidAmerican Funding	407			351			403
NV Energy	410			379			—
Northern Powergrid	202			198			180
BHE Pipeline Group	204			196			190
BHE Transmission	185			13			—
BHE Renewables	216			152			71
HomeServices	29			29			33
BHE and Other⁽¹⁾	(5		)	(6		)	(9		)
Total depreciation and amortization	$	2,428		$	2,057		$	1,560

Operating income:
PacifiCorp	$	1,344		$	1,308		$	1,275
MidAmerican Funding	473			423			357
NV Energy	812			791			(42		)
Northern Powergrid	593			674			501
BHE Pipeline Group	464			439			446
BHE Transmission	260			16			(5		)
BHE Renewables	255			314			223
HomeServices	184			125			129
BHE and Other⁽¹⁾	(57		)	(44		)	(49		)
Total operating income	4,328			4,046			2,835
Interest expense	(1,904		)	(1,711		)	(1,222		)
Capitalized interest	74			89			84
Allowance for equity funds	91			98			78
Interest and dividend income	107			38			15
Other, net	39			42			51
Total income before income tax expense and equity income (loss)	$	2,735		$	2,602		$	1,841



	Years Ended December 31,
	2015			2014			2013
Interest expense:
PacifiCorp	$	383		$	386		$	390
MidAmerican Funding	206			197			174
NV Energy	262			283			—
Northern Powergrid	145			151			141
BHE Pipeline Group	66			76			80
BHE Transmission	146			14			—
BHE Renewables	193			175			138
HomeServices	3			4			3
BHE and Other⁽¹⁾	500			425			296
Total interest expense	$	1,904		$	1,711		$	1,222

Income tax expense (benefit):
PacifiCorp	$	328		$	310		$	298
MidAmerican Funding	(144		)	(110		)	(110		)
NV Energy	207			195			(15		)
Northern Powergrid	35			110			23
BHE Pipeline Group	158			149			149
BHE Transmission	63			28			10
BHE Renewables	41			65			57
HomeServices	72			44			48
BHE and Other⁽¹⁾	(310		)	(202		)	(330		)
Total income tax expense (benefit)	$	450		$	589		$	130

Capital expenditures:
PacifiCorp	$	916		$	1,066		$	1,065
MidAmerican Funding	1,448			1,527			1,027
NV Energy	571			558			—
Northern Powergrid	674			675			675
BHE Pipeline Group	240			257			177
BHE Transmission	966			222			—
BHE Renewables	1,034			2,221			1,329
HomeServices	16			17			21
BHE and Other	10			12			13
Total capital expenditures	$	5,875		$	6,555		$	4,307



	As of December 31,
	2015			2014			2013
Property, plant and equipment, net:
PacifiCorp	$	19,039		$	18,755		$	18,563
MidAmerican Funding	11,737			10,535			9,353
NV Energy	9,767			9,648			9,623
Northern Powergrid	5,790			5,599			5,476
BHE Pipeline Group	4,345			4,286			4,147
BHE Transmission	5,301			5,567			—
BHE Renewables	4,805			4,897			3,020
HomeServices	70			68			61
BHE and Other	(85		)	(107		)	(124		)
Total property, plant and equipment, net	$	60,769		$	59,248		$	50,119

Total assets:
PacifiCorp	$	23,550		$	23,404		$	22,781
MidAmerican Funding	16,499			15,346			13,970
NV Energy	14,656			14,256			14,016
Northern Powergrid	7,317			7,059			6,852
BHE Pipeline Group	4,953			4,951			4,891
BHE Transmission	7,553			7,979			465
BHE Renewables	5,892			6,082			3,832
HomeServices	1,705			1,622			1,375
BHE and Other	1,493			1,117			1,409
Total assets	$	83,618		$	81,816		$	69,591

	Years Ended December 31,
	2015			2014			2013
Operating revenue by country:
United States	$	16,121		$	15,857		$	11,465
United Kingdom	1,140			1,281			1,023
Canada	600			78			16
Philippines and other	19			110			131
Total operating revenue by country	$	17,880		$	17,326		$	12,635

Income before income tax expense and equity income (loss) by country:
United States	$	2,034		$	2,001		$	1,388
United Kingdom	472			557			373
Canada	165			4			—
Philippines and other	64			40			80
Total income before income tax expense and equity income (loss) by country:	$	2,735		$	2,602		$	1,841



	As of December 31,
	2015		2014		2013
Property, plant and equipment, net by country:
United States	$	49,680	$	47,918	$	44,460
United Kingdom	5,757		5,563		5,439
Canada	5,298		5,570		3
Philippines and other	34		197		217
Total property, plant and equipment, net by country	$	60,769	$	59,248	$	50,119


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

Schedule of Goodwill [Table Text Block]

The following table shows the change in the carrying amount of goodwill by reportable segment for the years ended December 31, 2015 and 2014 (in millions):



										BHE
			MidAmerican		NV		Northern			Pipeline			BHE			BHE		Home-
	PacifiCorp		Funding		Energy		Powergrid			Group			Transmission			Renewables		Services		Other			Total

December 31, 2013	$	1,129	$	2,102	$	2,280	$	1,149		$	153		$	—		$	15	$	695	$	4		$	7,527
Acquisitions	—		—		89		—			—			1,700			80		66		—			1,935
Foreign currency translation	—		—		—		(49		)	—			(43		)	—		—		(1		)	(93		)
Other	—		—		—		—			(26		)	—			—		—		—			(26		)
December 31, 2014	1,129		2,102		2,369		1,100			127			1,657			95		761		3			9,343
Acquisitions	—		—		—		—			—			44			—		33		—			77
Foreign currency translation	—		—		—		(44		)	—			(273		)	—		—		(1		)	(318		)
Other	—		—		—		—			(26		)	—			—		—		—			(26		)
December 31, 2015	$	1,129	$	2,102	$	2,369	$	1,056		$	101		$	1,428		$	95	$	794	$	2		$	9,076

MidAmerican Energy Company [Member]

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

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



	Years Ended December 31,
	2015			2014			2013
Operating revenue:
Regulated electric	$	1,837		$	1,817		$	1,762
Regulated gas	661			996			824
Nonregulated energy	909			927			817
Total operating revenue	$	3,407		$	3,740		$	3,403

Depreciation and amortization:
Regulated electric	$	366		$	312		$	366
Regulated gas	41			39			37
Total depreciation and amortization	$	407		$	351		$	403

Operating income:
Regulated electric	$	385		$	319		$	255
Regulated gas	64			75			74
Nonregulated energy	22			28			27
Total operating income	$	471		$	422		$	356

Interest expense:
Regulated electric	$	166		$	157		$	136
Regulated gas	17			17			15
Total interest expense	$	183		$	174		$	151

Income tax (benefit) expense:
Regulated electric	$	(163	)	$	(138	)	$	(136	)
Regulated gas	16			22			23
Nonregulated energy	6			12			10
Total income tax (benefit) expense	$	(141	)	$	(104	)	$	(103	)

Earnings on common stock:
Regulated electric	$	413		$	361		$	292
Regulated gas	33			40			41
Nonregulated energy	16			16			16
Total earnings on common stock	$	462		$	417		$	349



	Years Ended December 31,
	2015		2014		2013
Utility construction expenditures:
Regulated electric	$	1,365	$	1,429	$	945
Regulated gas	81		97		81
Total utility construction expenditures	$	1,446	$	1,526	$	1,026

	As of December 31,
	2015		2014		2013
Total assets:
Regulated electric	$	12,970	$	11,850	$	10,521
Regulated gas	1,251		1,217		1,196
Nonregulated energy	164		167		131
Total assets	$	14,385	$	13,234	$	11,848

MidAmerican Funding, LLC and Subsidiaries [Domain]

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

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



	Years Ended December 31,
	2015			2014			2013
Operating revenue:
Regulated electric	$	1,837		$	1,817		$	1,762
Regulated gas	661			996			824
Nonregulated energy	910			927			817
Other	12			22			10
Total operating revenue	$	3,420		$	3,762		$	3,413

Depreciation and amortization:
Regulated electric	$	366		$	312		$	366
Regulated gas	41			39			37
Total depreciation and amortization	$	407		$	351		$	403

Operating income:
Regulated electric	$	385		$	319		$	255
Regulated gas	64			75			74
Nonregulated energy	22			28			27
Other	2			1			1
Total operating income	$	473		$	423		$	357

Interest expense:
Regulated electric	$	166		$	157		$	136
Regulated gas	17			17			15
Other	23			23			23
Total interest expense	$	206		$	197		$	174

Income tax (benefit) expense:
Regulated electric	$	(163	)	$	(138	)	$	(136	)
Regulated gas	16			22			23
Nonregulated energy	6			12			10
Other	(3		)	(6		)	(7		)
Total income tax (benefit) expense	$	(144	)	$	(110	)	$	(110	)

Net income attributable to MidAmerican Funding:
Regulated electric	$	413		$	361		$	292
Regulated gas	33			40			41
Nonregulated energy	16			16			16
Other	(4		)	(8		)	(9		)
Total net income attributable to MidAmerican Funding	$	458		$	409		$	340

Utility construction expenditures:
Regulated electric	$	1,365		$	1,429		$	945
Regulated gas	81			97			81
Total utility construction expenditures	$	1,446		$	1,526		$	1,026



	As of December 31,
	2015		2014		2013
Total assets:
Regulated electric	$	14,161	$	13,041	$	11,712
Regulated gas	1,330		1,296		1,275
Nonregulated energy	164		167		131
Other	19		18		28
Total assets	$	15,674	$	14,522	$	13,146

Schedule of Goodwill [Table Text Block]

Goodwill by reportable segment as of December 31, 2015 and 2014, was as follows (in millions):



Regulated electric	$	1,191
Regulated gas	79
Total	$	1,270

Sierra Pacific Power Company [Member]

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The following tables provide information on a reportable segment basis for the years ended December 31 (in millions):



	Years Ended December 31,
	2015		2014		2013
Operating revenue:
Regulated electric	$	810	$	779	$	747
Regulated gas	137		125		106
Total operating revenue	$	947	$	904	$	853

Cost of sales:
Regulated electric	$	374	$	361	$	292
Regulated gas	84		76		56
Total cost of sales	$	458	$	437	$	348

Gross margin:
Regulated electric	$	436	$	418	$	455
Regulated gas	53		49		50
Total gross margin	$	489	$	467	$	505

Operating and maintenance:
Regulated electric	$	146	$	140	$	176
Regulated gas	17		18		21
Total operating and maintenance	$	163	$	158	$	197

Depreciation and amortization:
Regulated electric	$	96	$	90	$	106
Regulated gas	17		15		17
Total depreciation and amortization	$	113	$	105	$	123

Operating income:
Regulated electric	$	168	$	165	$	134
Regulated gas	16		13		6
Total operating income	$	184	$	178	$	140

Interest expense:
Regulated electric	$	56	$	57	$	56
Regulated gas	5		4		5
Total interest expense	$	61	$	61	$	61

Income tax expense:
Regulated electric	$	43	$	43	$	32
Regulated gas	4		4		1
Total income tax expense	$	47	$	47	$	33



	Years Ended December 31,
	2015		2014		2013
Capital expenditures:
Regulated electric	$	229	$	168	$	125
Regulated gas	23		18		14
Total capital expenditures	$	252	$	186	$	139

	As of December 31,
Total assets:	2015		2014		2013
Regulated electric	$	3,060	$	2,984	$	2,905
Regulated gas	316		322		329
Regulated common assets⁽¹⁾	111		30		77
Total assets	$	3,487	$	3,336	$	3,311


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