Segment Information

12 Months Ended

Dec. 31, 2011

Segment Information [Abstract]

Segment Reporting Disclosure [Text Block]

(22)Segment Information

MEHC's reportable segments were determined based on how the Company's strategic units are managed. Effective December 31, 2011, the Company changed its reportable segments. Northern Natural Gas and Kern River have been aggregated in the reportable segment called MidAmerican Energy Pipeline Group, and CalEnergy Philippines and MidAmerican Renewables, LLC (formerly CalEnergy U.S.) have been aggregated in the reportable segment called MidAmerican Renewables. Prior year amounts have been changed to conform to the current presentation. The Company's reportable segments with foreign operations include Northern Powergrid Holdings, whose business is principally in Great Britain, and MidAmerican Renewables, whose business includes operations in the Philippines. Intersegment eliminations and adjustments, including the allocation of goodwill, have been made. Income tax expense reflects the impact of tax method changes discussed in Note 15. Information related to the Company's reportable segments is shown below (in millions):

	Years Ended December 31,
	2011			2010			2009
Operating revenue:
PacifiCorp	$	4,586		$	4,432		$	4,457
MidAmerican Funding	3,503			3,815			3,699
MidAmerican Energy Pipeline Group	977			981			1,061
Northern Powergrid Holdings	1,014			802			825
MidAmerican Renewables	161			137			178
HomeServices	992			1,020			1,037
MEHC and Other(1)	(60		)	(60		)	(53		)
Total operating revenue	$	11,173		$	11,127		$	11,204
Depreciation and amortization:
PacifiCorp	$	623		$	572		$	558
MidAmerican Funding	337			345			336
MidAmerican Energy Pipeline Group	184			173			164
Northern Powergrid Holdings	169			157			165
MidAmerican Renewables	30			31			31
HomeServices	12			14			18
MEHC and Other(1)	(14		)	(16		)	(16		)
Total depreciation and amortization	$	1,341		$	1,276		$	1,256
Operating income:
PacifiCorp	$	1,099		$	1,055		$	1,079
MidAmerican Funding	428			460			469
MidAmerican Energy Pipeline Group	468			472			558
Northern Powergrid Holdings	615			474			394
MidAmerican Renewables	106			88			128
HomeServices	24			17			11
MEHC and Other(1)	(56		)	(64		)	(174		)
Total operating income	2,684			2,502			2,465
Interest expense	(1,196		)	(1,225		)	(1,275		)
Capitalized interest	40			54			41
Interest and dividend income	14			24			38
Other, net	51			110			146
Total income before income tax expense and equity income	$	1,593		$	1,465		$	1,415

	Years Ended December 31,
	2011			2010			2009
Interest expense:
PacifiCorp	$	406		$	403		$	412
MidAmerican Funding	183			192			197
MidAmerican Energy Pipeline Group	101			111			116
Northern Powergrid Holdings	151			146			153
MidAmerican Renewables	18			20			20
MEHC and Other(1)	337			353			377
Total interest expense	$	1,196		$	1,225		$	1,275
Income tax expense:
PacifiCorp	$	215		$	212		$	236
MidAmerican Funding	(26		)	(62		)	(43		)
MidAmerican Energy Pipeline Group	152			152			181
Northern Powergrid Holdings	76			51			66
MidAmerican Renewables	36			35			49
HomeServices	16			13			17
MEHC and Other(1)	(175		)	(203		)	(224		)
Total income tax expense	$	294		$	198		$	282
Capital expenditures:
PacifiCorp	$	1,506		$	1,607		$	2,328
MidAmerican Funding	566			338			439
MidAmerican Energy Pipeline Group	289			293			250
Northern Powergrid Holdings	309			349			387
MidAmerican Renewables	4			1			1
HomeServices	7			5			6
MEHC and Other	3			—			2
Total capital expenditures	$	2,684		$	2,593		$	3,413

	As of December 31,
	2011			2010
Property, plant and equipment, net:
PacifiCorp	$	17,460		$	16,491
MidAmerican Funding	7,935			6,960
MidAmerican Energy Pipeline Group	4,126			3,957
Northern Powergrid Holdings	4,332			4,164
MidAmerican Renewables	413			439
HomeServices	47			51
MEHC and Other	(146		)	(163		)
Total property, plant and equipment, net	$	34,167		$	31,899
Total assets:
PacifiCorp	$	22,364		$	21,410
MidAmerican Funding	12,430			11,134
MidAmerican Energy Pipeline Group	4,854			4,744
Northern Powergrid Holdings	5,690			5,512
MidAmerican Renewables	890			905
HomeServices	649			649
MEHC and Other	841			1,314
Total assets	$	47,718		$	45,668

(1) The remaining differences between the segment amounts and the consolidated amounts described as "MEHC and Other" relate principally to intersegment eliminations for operating revenue and, for the other items presented, to (a) corporate functions, including administrative costs, interest expense, corporate cash and investments and related interest income and (b) intersegment eliminations.

The following table shows the change in the carrying amount of goodwill by reportable segment for the years ended December 31, 2011 and 2010 (in millions):

					MidAmerican
					Energy			Northern
			MidAmerican		Pipeline			Powergrid			MidAmerican		Home-
	PacifiCorp		Funding		Group			Holdings			Renewables		Services		Total
Balance, December 31, 2009	$	1,126	$	2,102	$	257		$	1,130		$	71	$	392	$	5,078
Foreign currency translation	—		—		—			(29		)	—		—		(29		)
Other	—		—		(26		)	—			—		2		(24		)
Balance, December 31, 2010	1,126		2,102		231			1,101			71		394		5,025
Foreign currency translation	—		—		—			(4		)	—		—		(4		)
Other	—		—		(26		)	—			—		1		(25		)
Balance, December 31, 2011	$	1,126	$	2,102	$	205		$	1,097		$	71	$	395	$	4,996