Consolidated Statements of Operations - MidAmerican Funding - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating revenue:
Total operating revenue	$ 5,644	$ 5,637	$ 15,148	$ 15,070
Cost of sales	1,230	1,271	3,471	3,565
Operating expenses:
Total operating expenses	4,194	4,114	11,820	11,704
Operating income	1,450	1,523	3,328	3,366
Other income (expense):
Other Interest and Dividend Income	(475)	(453)	(1,428)	(1,380)
Allowance for borrowed funds	23	17	56	44
Allowance for equity funds	56	30	126	75
Other, net	2	19	67	50
Total other income (expense)	(603)	(100)	(1,384)	(1,462)
Income before income tax (benefit) expense and equity income	847	1,423	1,944	1,904
Income tax (benefit) expense	(302)	23	(526)	(366)
Net Income (Loss) Attributable to Parent	1,137	1,401	2,443	2,286
MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	797	832	2,299	2,297
Operating expenses:
Operations and maintenance	190	201	602	599
Depreciation and amortization	184	133	540	499
Property and other taxes	31	30	94	92
Total operating expenses	563	554	1,855	1,853
Operating income	234	278	444	444
Other income (expense):
Other Interest and Dividend Income	(74)	(61)	(223)	(185)
Allowance for borrowed funds	7	6	20	14
Allowance for equity funds	27	16	59	39
Other, net	5	12	36	35
Total other income (expense)	(35)	(27)	(108)	(97)
Income before income tax (benefit) expense and equity income	199	251	336	347
Income tax (benefit) expense	(80)	(228)	(286)	(338)
Net Income (Loss) Attributable to Parent	279	479	622	685
Regulated electric | MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	712	727	1,792	1,785
Cost of sales	113	140	318	366
Regulated natural gas and other | MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	85	105	507	512
Cost of sales	$ 45	$ 50	$ 301	$ 297