Revenue from Contracts with Customers (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Total Customer Revenue		$ 4,712	$ 3,516
Operating revenue		6,081	4,527
Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		137	118
Electricity and natural gas [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		4,849	3,634
PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		1,229	1,170
Operating revenue		1,242	1,206
PacifiCorp [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		13	36
NV Energy, Inc. [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		585	615
Operating revenue		591	622
NV Energy, Inc. [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		6	7
Northern Powergrid Holdings [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		273	240
Operating revenue		300	266
Northern Powergrid Holdings [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		27	26
BHE Pipeline Group [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		1,071	400
Operating revenue		1,093	401
BHE Pipeline Group [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		22	1
BHE Transmission [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		180	172
Operating revenue		180	172
BHE Transmission [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		0	0
BHE Renewables [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		166	159
Operating revenue		190	178
BHE Renewables [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		24	19
Berkshire Hathaway Energy And Other [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue	[1]	146	78
Operating revenue	[1],[2]	186	103
Berkshire Hathaway Energy And Other [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	[1]	40	25
MidAmerican Funding [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		1,062	682
Operating revenue		1,067	686
MidAmerican Funding [Member] | Non-contracts with customer revenue [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		5	4
Regulated Operation [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		4,094	3,213
Regulated Operation [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		2,108	2,061
Regulated Operation [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		498	234
Regulated Operation [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		193	77
Regulated Operation [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		496	462
Regulated Operation [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		774	352
Regulated Operation [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		25	27
Regulated Operation [Member] | PacifiCorp [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		1,229	1,170
Regulated Operation [Member] | PacifiCorp [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		1,145	1,122
Regulated Operation [Member] | PacifiCorp [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | PacifiCorp [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		36	0
Regulated Operation [Member] | PacifiCorp [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		25	22
Regulated Operation [Member] | PacifiCorp [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | PacifiCorp [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		23	26
Regulated Operation [Member] | NV Energy, Inc. [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		585	614
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		511	529
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		38	47
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		15	14
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		21	23
Regulated Operation [Member] | NV Energy, Inc. [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | NV Energy, Inc. [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	1
Regulated Operation [Member] | Northern Powergrid Holdings [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		263	233
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		263	233
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | Northern Powergrid Holdings [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Pipeline Group [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		834	400
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		17	0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Pipeline Group [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		815	400
Regulated Operation [Member] | BHE Pipeline Group [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		2	0
Regulated Operation [Member] | BHE Transmission [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		172	169
Regulated Operation [Member] | BHE Transmission [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Transmission [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Transmission [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Transmission [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		172	169
Regulated Operation [Member] | BHE Transmission [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Transmission [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Renewables [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | BHE Renewables [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue	[1]	(41)	(49)
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue	[1]	0	0
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue	[1]	0	0
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue	[1]	0	(1)
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue	[1]	0	0
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue	[1]	(41)	(48)
Regulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue	[1]	0	0
Regulated Operation [Member] | MidAmerican Funding [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		1,052	676
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated retail electric [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		452	410
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated retail gas [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		460	187
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated wholesale [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		125	64
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated transmission and distribution [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		15	15
Regulated Operation [Member] | MidAmerican Funding [Member] | Regulated interstate pipeline [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Regulated Operation [Member] | MidAmerican Funding [Member] | Other customer revenue [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Unregulated Operation [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		618	303
Unregulated Operation [Member] | PacifiCorp [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	0
Unregulated Operation [Member] | NV Energy, Inc. [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		0	1
Unregulated Operation [Member] | Northern Powergrid Holdings [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		10	7
Unregulated Operation [Member] | BHE Pipeline Group [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		237	0
Unregulated Operation [Member] | BHE Transmission [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		8	3
Unregulated Operation [Member] | BHE Renewables [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		166	159
Unregulated Operation [Member] | Berkshire Hathaway Energy And Other [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue	[1]	187	127
Unregulated Operation [Member] | MidAmerican Funding [Member] | Nonregulated products and services [Member]
Disaggregation of Revenue [Line Items]
Total Customer Revenue		$ 10	$ 6

[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.