Statements of Operations - MEC - 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 Energy Company [Member]
Operating revenue:
Total operating revenue	812	796	2,106	2,297
Operating expenses:
Operations and maintenance	212	189	559	600
Depreciation and amortization	180	184	531	540
Property and other taxes	33	31	102	94
Total operating expenses	580	562	1,668	1,854
Operating income	232	234	438	443
Other income (expense):
Interest expense	(74)	(68)	(224)	(207)
Allowance for borrowed funds	5	7	12	20
Allowance for equity funds	16	27	33	59
Other, net	14	4	30	34
Total other income (expense)	(39)	(30)	(149)	(94)
Income before income tax (benefit) expense and equity income	193	204	289	349
Income tax expense (benefit)	(147)	(78)	(411)	(282)
Net Income (Loss) Attributable to Parent	340	282	700	631
Regulated electric | MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	728	712	1,717	1,792
Cost of sales	115	113	266	318
Regulated natural gas and other | MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	84	84	389	505
Cost of sales	$ 40	$ 45	$ 210	$ 302