Revenue from Contracts with Customers - BHE (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 5,138	$ 4,357	$ 14,049	$ 11,190
Operating revenue	6,968	6,193	19,113	15,332
Energy
Disaggregation of Revenue [Line Items]
Operating revenue	5,225	4,451	14,375	11,504
Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	87	94	326	314
PAC
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,491	1,478	4,006	3,775
Operating revenue	1,491	1,479	4,031	3,829
PAC | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	1,491	1,479	4,031	3,829
PAC | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	0	1	25	54
MidAmerican Funding
Disaggregation of Revenue [Line Items]
Total Customer Revenue	950	806	2,702	2,098
Operating revenue	966	812	2,726	2,114
MidAmerican Funding | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	966	812	2,726	2,114
MidAmerican Funding | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	16	6	24	16
NV Energy
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,078	1,034	2,425	2,336
Operating revenue	1,085	1,042	2,443	2,359
NV Energy | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	1,085	1,042	2,443	2,359
NV Energy | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	7	8	18	23
Northern Powergrid
Disaggregation of Revenue [Line Items]
Total Customer Revenue	249	214	773	650
Operating revenue	277	246	857	733
Northern Powergrid | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	277	246	857	733
Northern Powergrid | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	28	32	84	83
BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Total Customer Revenue	783	264	2,543	885
Operating revenue	785	264	2,584	890
BHE Pipeline Group | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	785	264	2,584	890
BHE Pipeline Group | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	2	0	41	5
BHE Transmission
Disaggregation of Revenue [Line Items]
Total Customer Revenue	187	175	552	516
Operating revenue	185	175	547	516
BHE Transmission | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	185	175	547	516
BHE Transmission | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	(2)	0	(5)	0
BHE Renewables
Disaggregation of Revenue [Line Items]
Total Customer Revenue	288	270	693	641
BHE Renewables | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	316	309	773	731
BHE Renewables | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	28	39	80	90
BHE and Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	112	116	355	289
Operating revenue	120	124	414	332
BHE and Other | Energy
Disaggregation of Revenue [Line Items]
Operating revenue	120	124	414	332
BHE and Other | Other revenue
Disaggregation of Revenue [Line Items]
Operating revenue	8	8	59	43
Regulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	4,430	3,927	12,111	10,109
Regulated | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	3,096	2,981	7,615	7,214
Regulated | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	100	84	707	422
Regulated | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	203	130	504	266
Regulated | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	521	455	1,512	1,336
Regulated | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	486	235	1,693	782
Regulated | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	24	42	80	89
Regulated | PAC
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,491	1,478	4,006	3,775
Regulated | PAC | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,352	1,344	3,685	3,532
Regulated | PAC | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | PAC | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	58	59	124	76
Regulated | PAC | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	55	33	117	79
Regulated | PAC | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | PAC | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	26	42	80	88
Regulated | MidAmerican Funding
Disaggregation of Revenue [Line Items]
Total Customer Revenue	948	802	2,689	2,085
Regulated | MidAmerican Funding | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	736	661	1,704	1,539
Regulated | MidAmerican Funding | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	84	70	633	341
Regulated | MidAmerican Funding | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	113	56	307	157
Regulated | MidAmerican Funding | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	15	15	45	48
Regulated | MidAmerican Funding | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | MidAmerican Funding | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | NV Energy
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,078	1,035	2,424	2,335
Regulated | NV Energy | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	1,008	977	2,227	2,144
Regulated | NV Energy | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	16	14	74	81
Regulated | NV Energy | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	19	14	44	34
Regulated | NV Energy | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	35	30	78	75
Regulated | NV Energy | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | NV Energy | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	1	1
Regulated | Northern Powergrid
Disaggregation of Revenue [Line Items]
Total Customer Revenue	241	208	747	632
Regulated | Northern Powergrid | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | Northern Powergrid | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | Northern Powergrid | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | Northern Powergrid | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	241	208	747	632
Regulated | Northern Powergrid | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | Northern Powergrid | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Pipeline Group
Disaggregation of Revenue [Line Items]
Total Customer Revenue	526	264	1,817	885
Regulated | BHE Pipeline Group | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Pipeline Group | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Pipeline Group | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	14	0	31	0
Regulated | BHE Pipeline Group | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Pipeline Group | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	514	264	1,787	885
Regulated | BHE Pipeline Group | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	(2)	0	(1)	0
Regulated | BHE Transmission
Disaggregation of Revenue [Line Items]
Total Customer Revenue	175	169	525	502
Regulated | BHE Transmission | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Transmission | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Transmission | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Transmission | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	175	169	525	502
Regulated | BHE Transmission | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Transmission | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Renewables
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Renewables | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Renewables | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Renewables | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Renewables | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Renewables | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE Renewables | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE and Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	(29)	(29)	(97)	(105)
Regulated | BHE and Other | Retail electric
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	(1)	(1)	(1)
Regulated | BHE and Other | Retail gas
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE and Other | Wholesale
Disaggregation of Revenue [Line Items]
Total Customer Revenue	(1)	1	(2)	(1)
Regulated | BHE and Other | Transmission and distribution
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Regulated | BHE and Other | Interstate pipeline
Disaggregation of Revenue [Line Items]
Total Customer Revenue	(28)	(29)	(94)	(103)
Regulated | BHE and Other | Other
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Nonregulated | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	708	430	1,938	1,081
Nonregulated | PAC | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	0	0	0
Nonregulated | MidAmerican Funding | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	2	4	13	13
Nonregulated | NV Energy | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	0	(1)	1	1
Nonregulated | Northern Powergrid | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	8	6	26	18
Nonregulated | BHE Pipeline Group | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	257	0	726	0
Nonregulated | BHE Transmission | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	12	6	27	14
Nonregulated | BHE Renewables | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	288	270	693	641
Nonregulated | BHE and Other | Nonregulated
Disaggregation of Revenue [Line Items]
Total Customer Revenue	$ 141	$ 145	$ 452	$ 394