Revenue from Contract with Customer - Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total operating revenue	$ 25,150	$ 20,952	$ 19,844
Energy
Disaggregation of Revenue [Line Items]
Customer revenue	18,308	15,081	14,837
Other revenue	627	475	534
Total operating revenue	18,935	15,556	15,371
Energy | PAC
Disaggregation of Revenue [Line Items]
Customer revenue	5,255	5,243	4,986
Other revenue	41	98	82
Total operating revenue	5,296	5,341	5,068
Energy | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Customer revenue	3,514	2,704	2,904
Other revenue	33	24	23
Total operating revenue	3,547	2,728	2,927
Energy | NV Energy
Disaggregation of Revenue [Line Items]
Customer revenue	3,083	2,824	3,007
Other revenue	24	30	30
Total operating revenue	3,107	2,854	3,037
Energy | Northern Powergrid
Disaggregation of Revenue [Line Items]
Customer revenue	1,066	913	912
Other revenue	122	109	101
Total operating revenue	1,188	1,022	1,013
Energy | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Customer revenue	3,416	1,548	1,122
Other revenue	128	30	9
Total operating revenue	3,544	1,578	1,131
Energy | BHE Transmission
Disaggregation of Revenue [Line Items]
Customer revenue	737	659	707
Other revenue	(6)	0	0
Total operating revenue	731	659	707
Energy | BHE Renewables
Disaggregation of Revenue [Line Items]
Customer revenue	796	817	744
Other revenue	185	119	188
Total operating revenue	981	936	932
Energy | BHE and other
Disaggregation of Revenue [Line Items]
Customer revenue	441	373	455
Other revenue	100	65	101
Total operating revenue	541	438	556
Energy | Regulated assets
Disaggregation of Revenue [Line Items]
Customer revenue	15,884	13,553	13,433
Energy | Regulated assets | PAC
Disaggregation of Revenue [Line Items]
Customer revenue	5,255	5,243	4,986
Energy | Regulated assets | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Customer revenue	3,499	2,688	2,874
Energy | Regulated assets | NV Energy
Disaggregation of Revenue [Line Items]
Customer revenue	3,080	2,822	3,007
Energy | Regulated assets | Northern Powergrid
Disaggregation of Revenue [Line Items]
Customer revenue	1,023	887	876
Energy | Regulated assets | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Customer revenue	2,460	1,414	1,122
Energy | Regulated assets | BHE Transmission
Disaggregation of Revenue [Line Items]
Customer revenue	702	641	690
Energy | Regulated assets | BHE Renewables
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Energy | Regulated assets | BHE and other
Disaggregation of Revenue [Line Items]
Customer revenue	(135)	(142)	(122)
Energy | Nonregulated assets
Disaggregation of Revenue [Line Items]
Customer revenue	2,424	1,528	1,404
Energy | Nonregulated assets | PAC
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Energy | Nonregulated assets | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Customer revenue	15	16	30
Energy | Nonregulated assets | NV Energy
Disaggregation of Revenue [Line Items]
Customer revenue	3	2	0
Energy | Nonregulated assets | Northern Powergrid
Disaggregation of Revenue [Line Items]
Customer revenue	43	26	36
Energy | Nonregulated assets | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Customer revenue	956	134	0
Energy | Nonregulated assets | BHE Transmission
Disaggregation of Revenue [Line Items]
Customer revenue	35	18	17
Energy | Nonregulated assets | BHE Renewables
Disaggregation of Revenue [Line Items]
Customer revenue	796	817	744
Energy | Nonregulated assets | BHE and other
Disaggregation of Revenue [Line Items]
Customer revenue	576	515	577
Retail Electric | Regulated assets
Disaggregation of Revenue [Line Items]
Customer revenue	9,801	9,421	9,465
Retail Electric | Regulated assets | PAC
Disaggregation of Revenue [Line Items]
Customer revenue	4,847	4,932	4,789
Retail Electric | Regulated assets | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Customer revenue	2,128	1,924	1,938
Retail Electric | Regulated assets | NV Energy
Disaggregation of Revenue [Line Items]
Customer revenue	2,828	2,566	2,740
Retail Electric | Regulated assets | Northern Powergrid
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Retail Electric | Regulated assets | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Retail Electric | Regulated assets | BHE Transmission
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Retail Electric | Regulated assets | BHE Renewables
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Retail Electric | Regulated assets | BHE and other
Disaggregation of Revenue [Line Items]
Customer revenue	(2)	(1)	(2)
Retail Gas | Regulated assets
Disaggregation of Revenue [Line Items]
Customer revenue	974	619	686
Retail Gas | Regulated assets | PAC
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Retail Gas | Regulated assets | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Customer revenue	859	505	570
Retail Gas | Regulated assets | NV Energy
Disaggregation of Revenue [Line Items]
Customer revenue	115	114	116
Retail Gas | Regulated assets | Northern Powergrid
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Retail Gas | Regulated assets | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Retail Gas | Regulated assets | BHE Transmission
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Retail Gas | Regulated assets | BHE Renewables
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Retail Gas | Regulated assets | BHE and other
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Wholesale | Regulated assets
Disaggregation of Revenue [Line Items]
Customer revenue	727	366	457
Wholesale | Regulated assets | PAC
Disaggregation of Revenue [Line Items]
Customer revenue	157	107	99
Wholesale | Regulated assets | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Customer revenue	454	199	309
Wholesale | Regulated assets | NV Energy
Disaggregation of Revenue [Line Items]
Customer revenue	62	45	51
Wholesale | Regulated assets | Northern Powergrid
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Wholesale | Regulated assets | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Customer revenue	57	17	0
Wholesale | Regulated assets | BHE Transmission
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Wholesale | Regulated assets | BHE Renewables
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Wholesale | Regulated assets | BHE and other
Disaggregation of Revenue [Line Items]
Customer revenue	(3)	(2)	(2)
Transmission and distribution | Regulated assets
Disaggregation of Revenue [Line Items]
Customer revenue	2,000	1,779	1,819
Transmission and distribution | Regulated assets | PAC
Disaggregation of Revenue [Line Items]
Customer revenue	143	96	98
Transmission and distribution | Regulated assets | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Customer revenue	58	60	57
Transmission and distribution | Regulated assets | NV Energy
Disaggregation of Revenue [Line Items]
Customer revenue	74	95	98
Transmission and distribution | Regulated assets | Northern Powergrid
Disaggregation of Revenue [Line Items]
Customer revenue	1,023	887	876
Transmission and distribution | Regulated assets | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Transmission and distribution | Regulated assets | BHE Transmission
Disaggregation of Revenue [Line Items]
Customer revenue	702	641	690
Transmission and distribution | Regulated assets | BHE Renewables
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Transmission and distribution | Regulated assets | BHE and other
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Interstate pipeline | Regulated assets
Disaggregation of Revenue [Line Items]
Customer revenue	2,273	1,258	1,004
Interstate pipeline | Regulated assets | PAC
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Interstate pipeline | Regulated assets | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Interstate pipeline | Regulated assets | NV Energy
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Interstate pipeline | Regulated assets | Northern Powergrid
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Interstate pipeline | Regulated assets | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Customer revenue	2,404	1,397	1,122
Interstate pipeline | Regulated assets | BHE Transmission
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Interstate pipeline | Regulated assets | BHE Renewables
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Interstate pipeline | Regulated assets | BHE and other
Disaggregation of Revenue [Line Items]
Customer revenue	(131)	(139)	(118)
Other | Regulated assets
Disaggregation of Revenue [Line Items]
Customer revenue	109	110	2
Other | Regulated assets | PAC
Disaggregation of Revenue [Line Items]
Customer revenue	108	108	0
Other | Regulated assets | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Other | Regulated assets | NV Energy
Disaggregation of Revenue [Line Items]
Customer revenue	1	2	2
Other | Regulated assets | Northern Powergrid
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Other | Regulated assets | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Customer revenue	(1)	0	0
Other | Regulated assets | BHE Transmission
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Other | Regulated assets | BHE Renewables
Disaggregation of Revenue [Line Items]
Customer revenue	0	0	0
Other | Regulated assets | BHE and other
Disaggregation of Revenue [Line Items]
Customer revenue	$ 1	$ 0	$ 0