Consolidated Statements of Operations (LLC) (MidAmerican Funding, LLC and Subsidiaries [Domain], USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Regulated electric	$ 512	$ 511	$ 1,338	$ 1,295
Regulated gas	98	87	555	441
Nonregulated	218	230	615	675
Total operating revenue	828	828	2,508	2,411
Regulated operating costs and expenses:
Cost of fuel, energy and capacity	145	136	382	345
Cost of gas sold	55	44	367	275
Other operating expenses	103	107	320	309
Maintenance	57	52	172	150
Depreciation and amortization	97	106	308	299
Property and other taxes	29	27	89	86
Total regulated operating costs and expenses	486	472	1,638	1,464
Nonregulated operating costs and expenses:
Cost of sales	203	207	568	612
Other	9	10	23	24
Total nonregulated operating costs and expenses	212	217	591	636
Total operating costs and expenses	698	689	2,229	2,100
Operating income	130	139	279	311
Non-operating income:
Interest income	0	0	1	1
Allowance for equity funds	4	5	12	10
Other, net	5	3	15	9
Total non-operating income	9	8	28	20
Fixed charges:
Interest on long-term debt	42	40	123	124
Other interest expense	0	1	1	2
Allowance for borrowed funds	(1)	(2)	(4)	(4)
Total fixed charges	41	39	120	122
Income before income tax (benefit) expense	98	108	187	209
Income tax (benefit) expense	(45)	(28)	(78)	(76)
Net income	143	136	265	285
Net income attributable to noncontrolling interests	0	0	1	1
Net income attributable to MidAmerican Funding member	$ 143	$ 136	$ 264	$ 284