Segment Information (Details) $ in Millions		3 Months Ended
		Mar. 31, 2021 USD ($) OperatingSegments	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Operating revenue		$ 6,081	$ 4,527
Depreciation and amortization - energy operations		(915)	(809)
Depreciation and amortization		927	821
Operating income		1,333	919
Interest expense		530	483
Interest Costs Capitalized		14	17
Allowance for equity funds		26	34
Interest and dividend income		21	20
(Losses) gains on marketable securities, net		(1,118)	27
Other, net		8	(27)
Income before income tax expense and equity income		(246)	507
Net Income (Loss) Attributable to Parent		4	670
Undistributed Earnings (Loss) Available to Common Shareholders, Diluted		(34)	670
Assets		$ 127,522		$ 127,316
Number of reportable segments | OperatingSegments		8
PacifiCorp [Member]
Segment Reporting Information [Line Items]
Operating revenue		$ 1,242	1,206
Depreciation and amortization - energy operations		(264)	(252)
Operating income		234	234
Interest expense		107	102
Net Income (Loss) Attributable to Parent		169	176
Assets		26,956		26,862
MidAmerican Funding [Member]
Segment Reporting Information [Line Items]
Operating revenue		1,067	686
Depreciation and amortization - energy operations		(207)	(176)
Operating income		48	102
Interest expense		78	81
Net Income (Loss) Attributable to Parent		144	150
Assets		24,098		23,530
NV Energy, Inc. [Member]
Segment Reporting Information [Line Items]
Operating revenue		591	622
Depreciation and amortization - energy operations		(136)	(124)
Operating income		70	79
Interest expense		52	58
Net Income (Loss) Attributable to Parent		34	20
Assets		14,594		14,501
Northern Powergrid Holdings [Member]
Segment Reporting Information [Line Items]
Operating revenue		300	266
Depreciation and amortization - energy operations		(71)	(63)
Operating income		151	132
Interest expense		33	32
Net Income (Loss) Attributable to Parent		104	87
Assets		8,980		8,782
BHE Pipeline Group [Member]
Segment Reporting Information [Line Items]
Operating revenue		1,093	401
Depreciation and amortization - energy operations		(118)	(64)
Operating income		618	249
Interest expense		38	14
Net Income (Loss) Attributable to Parent		383	179
Assets		19,651		19,541
BHE Transmission [Member]
Segment Reporting Information [Line Items]
Operating revenue		180	172
Depreciation and amortization - energy operations		(58)	(60)
Operating income		81	76
Interest expense		38	38
Net Income (Loss) Attributable to Parent		59	55
Assets		9,341		9,208
Berkshire Hathaway Energy Renewables [Member]
Segment Reporting Information [Line Items]
Operating revenue		190	178
Depreciation and amortization - energy operations		(60)	(71)
Operating income		33	17
Interest expense		40	42
Net Income (Loss) Attributable to Parent		16	95
Assets		11,935		12,004
HomeServices [Member]
Segment Reporting Information [Line Items]
Operating revenue		1,232	893
Depreciation and amortization		11	11
Operating income		112	20
Interest expense		1	5
Net Income (Loss) Attributable to Parent		84	10
Assets		5,186		4,955
Berkshire Hathaway Energy And Other [Member]
Segment Reporting Information [Line Items]
Operating revenue	[1],[2]	186	103
Depreciation and amortization - energy operations	[2]	(2)	0
Operating income	[2]	(14)	10
Interest expense	[2]	143	111
Net Income (Loss) Attributable to Parent		(1,027)	(102)
Assets	[2]	6,781		$ 7,933
UNITED STATES
Segment Reporting Information [Line Items]
Operating revenue		5,597	4,089
Income before income tax expense and equity income		(423)	354
UNITED KINGDOM
Segment Reporting Information [Line Items]
Operating revenue		300	266
Income before income tax expense and equity income		132	109
CANADA
Segment Reporting Information [Line Items]
Operating revenue		177	171
Income before income tax expense and equity income		39	40
The Philippines and other [Member]
Segment Reporting Information [Line Items]
Operating revenue		7	1
Income before income tax expense and equity income		$ 6	$ 4

[1] The BHE and Other reportable segment represents amounts related principally to other entities, corporate functions and intersegment eliminations.

[2] The differences between the reportable segment amounts and the consolidated amounts, described as BHE and Other, relate principally to other entities, including MidAmerican Energy Services, LLC, corporate functions and intersegment eliminations.