Segment Information Segment Information (Tables)

12 Months Ended

Dec. 31, 2015

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
Other	4			9			2
Total operating revenue	$	2,502		$	2,822		$	2,588
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
Total operating income	$	449		$	394		$	329
Interest expense:
Regulated electric	$	166		$	157		$	136
Regulated gas	17			17			15
Total interest expense	$	183		$	174		$	151
Income tax (benefit) expense of continuing operations:
Regulated electric	$	(163	)	$	(138	)	$	(136	)
Regulated gas	16			22			23
Other	—			—			(3		)
Total income tax (benefit) expense of continuing operations	$	(147	)	$	(116	)	$	(116	)
Earnings on common stock:
Regulated electric	$	413		$	361		$	292
Regulated gas	33			40			41
Other	—			—			2
Earnings on common stock from continuing operations	446			401			335
Income on discontinued operations	16			16			14
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
Other	164		167		131
Total assets	$	14,385	$	13,234	$	11,848