Subsidiary Debt - BHE Transmission (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Par value	$ 51,702
Subsidiary debt
Debt Instrument [Line Items]
Par value	37,501
Subsidiary debt	37,539	$ 36,659
Subsidiary debt | BHE Transmission
Debt Instrument [Line Items]
Par value	3,509
Subsidiary debt	3,495	3,906
Subsidiary debt | AltaLink Investments, L.P.
Debt Instrument [Line Items]
Par value	0
Subsidiary debt	0	158
Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Par value	3,504
Subsidiary debt	$ 3,490	3,742
Series 15-1 Senior Bonds, 2.244%, due 2022 | Subsidiary debt | AltaLink Investments, L.P.
Debt Instrument [Line Items]
Stated rate	2.244%
Par value	$ 0
Subsidiary debt	$ 0	158
Series 2012-2 Notes, 2.978%, due 2022 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	2.978%
Par value	$ 0
Subsidiary debt	$ 0	218
Series 2013-4 Notes, 3.668%, due 2023 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	3.668%
Par value	$ 369
Subsidiary debt	$ 369	395
Series 2014-1 Notes, 3.399%, due 2024 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	3.399%
Par value	$ 258
Subsidiary debt	$ 258	277
Series 2016-1 Notes, 2.747%, due 2026 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	2.747%
Par value	$ 258
Subsidiary debt	$ 258	276
Series 2020-1 Notes, 1.509%, due 2030 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	1.509%
Par value	$ 166
Subsidiary debt	$ 165	177
Series 2022-1 Notes, 4.692%, due 2032 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.692%
Par value	$ 203
Subsidiary debt	$ 202	0
Series 2006-1 Notes, 5.249%, due 2036 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	5.249%
Par value	$ 111
Subsidiary debt	$ 111	118
Series 2010-1 Notes, 5.381%, due 2040 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	5.381%
Par value	$ 92
Subsidiary debt	$ 92	99
Series 2010-2 Notes, 4.872%, due 2040 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.872%
Par value	$ 111
Subsidiary debt	$ 110	118
Series 2011-1 Notes, 4.462%, due 2041 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.462%
Par value	$ 203
Subsidiary debt	$ 202	217
Series 2012-1 Notes, 3.990%, due 2042 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	3.99%
Par value	$ 387
Subsidiary debt	$ 383	410
Series 2013-3 Notes, 4.922%, due 2043 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.922%
Par value	$ 258
Subsidiary debt	$ 258	276
Series 2014-3 Notes, 4.054%, due 2044 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.054%
Par value	$ 218
Subsidiary debt	$ 216	232
Series 2015-1 Notes, 4.090%, due 2045 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.09%
Par value	$ 258
Subsidiary debt	$ 257	275
Series 2016-2 Notes, 3.717%, due 2046 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	3.717%
Par value	$ 332
Subsidiary debt	$ 330	354
Series 2013-1 Notes, 4.446%, due 2053 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.446%
Par value	$ 184
Subsidiary debt	$ 184	197
Series 2014-2 Notes, 4.274%, due 2064 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.274%
Par value	$ 96
Subsidiary debt	$ 95	103
Construction Loan, 5.620%, due 2024 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	5.62%
Par value	$ 5
Subsidiary debt	$ 5	$ 6