Subsidiary Debt - BHE Transmission (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Par value	$ 52,313
Subsidiary debt
Debt Instrument [Line Items]
Par value	39,012
Subsidiary debt	38,971	$ 37,539
Subsidiary debt | BHE Transmission
Debt Instrument [Line Items]
Par value	3,591
Subsidiary debt	3,574	3,495
Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Par value	3,586
Subsidiary debt	$ 3,569	3,490
Series 2013-4 Notes, 3.668%, due 2023 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	3.668%
Par value	$ 0
Subsidiary debt	$ 0	369
Series 2014-1 Notes, 3.399%, due 2024 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	3.399%
Par value	$ 264
Subsidiary debt	$ 264	258
Series 2016-1 Notes, 2.747%, due 2026 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	2.747%
Par value	$ 264
Subsidiary debt	$ 264	258
Series 2020-1 Notes, 1.509%, due 2030 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	1.509%
Par value	$ 170
Subsidiary debt	$ 169	165
Series 2022-1 Notes, 4.692%, due 2032 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.692%
Par value	$ 208
Subsidiary debt	$ 207	202
Series 2006-1 Notes, 5.249%, due 2036 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	5.249%
Par value	$ 113
Subsidiary debt	$ 113	111
Series 2010-1 Notes, 5.381%, due 2040 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	5.381%
Par value	$ 94
Subsidiary debt	$ 94	92
Series 2010-2 Notes, 4.872%, due 2040 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.872%
Par value	$ 113
Subsidiary debt	$ 113	110
Series 2011-1 Notes, 4.462%, due 2041 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.462%
Par value	$ 208
Subsidiary debt	$ 207	202
Series 2012-1 Notes, 3.990%, due 2042 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	3.99%
Par value	$ 396
Subsidiary debt	$ 391	383
Series 2013-3 Notes, 4.922%, due 2043 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.922%
Par value	$ 264
Subsidiary debt	$ 263	258
Series 2014-3 Notes, 4.054%, due 2044 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.054%
Par value	$ 223
Subsidiary debt	$ 222	216
Series 2015-1 Notes, 4.090%, due 2045 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.09%
Par value	$ 264
Subsidiary debt	$ 263	257
Series 2016-2 Notes, 3.717%, due 2046 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	3.717%
Par value	$ 340
Subsidiary debt	$ 338	330
Series 2013-1 Notes, 4.446%, due 2053 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.446%
Par value	$ 189
Subsidiary debt	$ 188	184
Series 2023-1 Notes, 5.463%, due 2055 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	5.463%
Par value	$ 378
Subsidiary debt	$ 375	0
Series 2014-2 Notes, 4.274%, due 2064 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	4.274%
Par value	$ 98
Subsidiary debt	$ 98	95
Construction Loan, 5.620%, due 2024 | Subsidiary debt | AltaLink
Debt Instrument [Line Items]
Stated rate	5.62%
Par value	$ 5
Subsidiary debt	$ 5	$ 5