Statements of Operations - MEC - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating revenue:
Total operating revenue	$ 4,527	$ 4,610
Cost of sales	1,038	1,214
Operating expenses:
Total operating expenses	3,608	3,691
Operating income	919	919
Other income (expense):
Interest expense	(483)	(477)
Allowance for borrowed funds	17	16
Allowance for equity funds	34	32
Other, net	(27)	35
Total other income (expense)	(412)	(432)
Income before income tax (benefit) expense and equity income	507	487
Income tax benefit	(184)	(148)
Net Income (Loss) Attributable to Parent	670	622
MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	681	842
Operating expenses:
Operations and maintenance	165	207
Depreciation and amortization	176	177
Property and other taxes	34	34
Total operating expenses	583	727
Operating income	98	115
Other income (expense):
Interest expense	(76)	(69)
Allowance for borrowed funds	3	6
Allowance for equity funds	8	15
Other, net	(5)	20
Total other income (expense)	(70)	(28)
Income before income tax (benefit) expense and equity income	28	87
Income tax benefit	(123)	(106)
Net Income (Loss) Attributable to Parent	151	193
Regulated electric | MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	471	542
Cost of sales	80	114
Regulated natural gas and other | MidAmerican Energy Company [Member]
Operating revenue:
Total operating revenue	210	300
Cost of sales	$ 128	$ 195