Segment Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Operating revenue		$ 6,193	$ 5,644	$ 15,332	$ 15,148
Depreciation and amortization - energy operations		(789)	(795)	(2,323)	(2,243)
Depreciation and amortization		800	806	2,357	2,278
Operating income		1,547	1,450	3,402	3,328
Interest expense		504	475	1,490	1,428
Capitalized interest		24	23	60	56
Interest Costs Capitalized				60	56
Allowance for equity funds		50	56	122	126
Interest and dividend income		17	25	57	91
Gains (losses) on marketable securities, net		1,797	(234)	2,407	(296)
Other, net		36	2	61	67
Income before income tax expense and equity income		2,967	847	4,619	1,944
Assets		109,186		109,186		$ 100,051
PacifiCorp [Member]
Segment Reporting Information [Line Items]
Operating revenue		1,479	1,367	3,829	3,793
Depreciation and amortization - energy operations		(234)	(272)	(696)	(686)
Operating income		361	333	851	885
Interest expense		107	101	319	299
Assets		26,686		26,686		24,861
MidAmerican Funding [Member]
Segment Reporting Information [Line Items]
Operating revenue		812	797	2,114	2,299
Depreciation and amortization - energy operations		(179)	(184)	(530)	(540)
Operating income		232	234	444	444
Interest expense		79	74	238	223
Assets		23,372		23,372		22,664
NV Energy, Inc. [Member]
Segment Reporting Information [Line Items]
Operating revenue		1,042	1,054	2,359	2,389
Depreciation and amortization - energy operations		(128)	(121)	(377)	(361)
Operating income		347	313	587	547
Interest expense		56	55	171	173
Assets		14,705		14,705		14,128
Northern Powergrid Holdings [Member]
Segment Reporting Information [Line Items]
Operating revenue		246	230	733	736
Depreciation and amortization - energy operations		(69)	(60)	(195)	(186)
Operating income		106	98	327	337
Interest expense		34	33	97	102
Assets		8,491		8,491		8,385
BHE Pipeline Group [Member]
Segment Reporting Information [Line Items]
Operating revenue		264	226	890	809
Depreciation and amortization - energy operations		(45)	(28)	(134)	(85)
Operating income		101	87	442	398
Interest expense		15	14	44	38
Assets		6,313		6,313		6,100
BHE Transmission [Member]
Segment Reporting Information [Line Items]
Operating revenue		175	184	516	527
Depreciation and amortization - energy operations		(61)	(59)	(176)	(177)
Operating income		79	91	236	244
Interest expense		38	40	111	118
Assets		8,799		8,799		8,776
Berkshire Hathaway Energy Renewables [Member]
Segment Reporting Information [Line Items]
Operating revenue		309	329	731	745
Depreciation and amortization - energy operations		(72)	(71)	(214)	(210)
Operating income		143	183	244	298
Interest expense		41	44	125	132
Assets		11,630		11,630		9,961
HomeServices [Member]
Segment Reporting Information [Line Items]
Operating revenue		1,742	1,307	3,828	3,419
Depreciation and amortization		11	11	34	35
Operating income		239	113	336	209
Interest expense		1	6	9	20
Assets		5,366		5,366		3,846
Berkshire Hathaway Energy And Other [Member]
Segment Reporting Information [Line Items]
Operating revenue	[1],[2]	124	150	332	431
Depreciation and amortization - energy operations	[2]	(1)	0	(1)	(2)
Operating income	[2]	(61)	(2)	(65)	(34)
Interest expense	[2]	133	108	376	323
Assets	[2]	3,824		3,824		$ 1,330
UNITED STATES
Segment Reporting Information [Line Items]
Operating revenue		5,773	5,222	14,086	13,875
Income before income tax expense and equity income		2,839	728	4,220	1,546
UNITED KINGDOM
Segment Reporting Information [Line Items]
Operating revenue		246	229	733	734
Income before income tax expense and equity income		82	49	250	228
CANADA
Segment Reporting Information [Line Items]
Operating revenue		174	183	512	526
Income before income tax expense and equity income		44	55	130	134
The Philippines and other [Member]
Segment Reporting Information [Line Items]
Operating revenue		0	10	1	13
Income before income tax expense and equity income		$ 2	$ 15	$ 19	$ 36

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

[2] e 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.T