Consolidated Statements of Operations - MidAmerican Funding - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating revenue:
Total operating revenue	$ 6,193	$ 5,644	$ 15,332	$ 15,148
Cost of sales	1,169	1,230	3,095	3,471
Operating expenses:
Total operating expenses	4,646	4,194	11,930	11,820
Operating income	1,547	1,450	3,402	3,328
Other income (expense):
Interest expense	(504)	(475)	(1,490)	(1,428)
Allowance for borrowed funds	24	23	60	56
Allowance for equity funds	50	56	122	126
Other, net	36	2	61	67
Total other income (expense)	1,420	(603)	1,217	(1,384)
Income before income tax (benefit) expense and equity income	2,967	847	4,619	1,944
Income tax expense (benefit)	80	(302)	(111)	(526)
Net Income (Loss) Attributable to Parent	2,842	1,137	4,628	2,443
MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	812	797	2,114	2,299
Operating expenses:
Operations and maintenance	212	190	560	602
Depreciation and amortization	180	184	531	540
Property and other taxes	33	31	102	94
Total operating expenses	580	563	1,670	1,855
Operating income	232	234	444	444
Other income (expense):
Interest expense	(79)	(74)	(238)	(223)
Allowance for borrowed funds	5	7	12	20
Allowance for equity funds	16	27	33	59
Other, net	15	5	30	36
Total other income (expense)	(43)	(35)	(163)	(108)
Income before income tax (benefit) expense and equity income	189	199	281	336
Income tax expense (benefit)	(148)	(80)	(414)	(286)
Net Income (Loss) Attributable to Parent	337	279	695	622
Regulated electric | MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	728	712	1,717	1,792
Cost of sales	115	113	266	318
Regulated natural gas and other | MidAmerican Funding, LLC and Subsidiaries [Domain]
Operating revenue:
Total operating revenue	84	85	397	507
Cost of sales	$ 40	$ 45	$ 211	$ 301