Unaudited Quarterly Operating Results

12 Months Ended

Dec. 31, 2015

MidAmerican Energy Company [Member]

Quarterly Operating Results [Line Items]

Quarterly Financial Information [Text Block]

Unaudited Quarterly Operating Results

	2015
	1st Quarter		2nd Quarter		3rd Quarter		4th Quarter
	(In millions)
Operating revenue	$	722	$	572	$	680	$	528
Operating income	100		112		208		29
Income from continuing operations	90		126		233		(3		)
Income on discontinued operations	4		5		1		6
Net income	94		131		234		3
	2014
	1st Quarter		2nd Quarter		3rd Quarter		4th Quarter
	(In millions)
Operating revenue	$	966	$	564	$	638	$	654
Operating income	140		46		156		52
Income from continuing operations	149		30		168		54
Income on discontinued operations	8		2		2		4
Net income	157		32		170		58

Quarterly data reflect seasonal variations common to a Midwest utility.