Consolidated Statements of Operations (LLC) (MidAmerican Funding, LLC and Subsidiaries [Domain], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Regulated electric	$ 450	$ 415
Regulated gas	511	315
Nonregulated	269	191
Total operating revenue	1,230	921
Regulated operating costs and expenses:
Cost of fuel, energy and capacity	146	123
Cost of gas sold	409	224
Other operating expenses	109	106
Maintenance	44	45
Depreciation and amortization	85	107
Property and other taxes	32	30
Total regulated operating costs and expenses	825	635
Nonregulated operating costs and expenses:
Cost of sales	241	174
Other	11	6
Total nonregulated operating costs and expenses	252	180
Total operating costs and expenses	1,077	815
Operating income	153	106
Non-operating income:
Allowance for equity funds	9	4
Other, net	5	6
Total non-operating income	14	10
Fixed charges:
Interest on long-term debt	46	41
Allowance for borrowed funds	(4)	(1)
Total fixed charges	42	40
Income before income tax (benefit) expense	125	76
Income tax (benefit) expense	(30)	(24)
Net income	155	100
Net income attributable to noncontrolling interests	0	0
Net income attributable to MidAmerican Funding member	$ 155	$ 100