Statements of Operations - MEC - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating revenue:
Total operating revenue	$ 4,612	$ 4,894	$ 9,139	$ 9,504
Cost of sales	888	1,027	1,926	2,241
Operating expenses:
Total operating expenses	3,676	3,935	7,284	7,626
Operating income	936	959	1,855	1,878
Other income (expense):
Interest expense	(503)	(476)	(986)	(953)
Allowance for borrowed funds	19	17	36	33
Allowance for equity funds	38	38	72	70
Other, net	52	30	25	65
Total other income (expense)	209	(349)	(203)	(781)
Income before income tax (benefit) expense and equity income	1,145	610	1,652	1,097
Income tax benefit	(7)	(76)	(191)	(224)
Net Income (Loss) Attributable to Parent	1,116	684	1,786	1,306
MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	613	659	1,294	1,501
Operating expenses:
Operations and maintenance	182	204	347	411
Depreciation and amortization	175	179	351	356
Property and other taxes	35	29	69	63
Total operating expenses	505	565	1,088	1,292
Operating income	108	94	206	209
Other income (expense):
Interest expense	(74)	(70)	(150)	(139)
Allowance for borrowed funds	4	7	7	13
Allowance for equity funds	9	17	17	32
Other, net	21	10	16	30
Total other income (expense)	(40)	(36)	(110)	(64)
Income before income tax (benefit) expense and equity income	68	58	96	145
Income tax benefit	(141)	(98)	(264)	(204)
Net Income (Loss) Attributable to Parent	209	156	360	349
Regulated electric | MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	518	538	989	1,080
Cost of sales	71	91	151	205
Regulated natural gas and other | MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	95	121	305	421
Cost of sales	$ 42	$ 62	$ 170	$ 257