Subsidiary Debt - PacifiCorp (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Par value	$ 55,471
PAC
Debt Instrument [Line Items]
Subsidiary debt	13,588	$ 10,410
Additional debt with regulatory authority to issue	5,000
Eligible property subject to lien of mortgages	39,000
Subsidiary debt
Debt Instrument [Line Items]
Par value	42,270
Subsidiary debt	42,150	38,971
Subsidiary debt | PAC
Debt Instrument [Line Items]
Par value	13,702
Subsidiary debt	$ 13,588	$ 10,410
Subsidiary debt | Minimum | PAC
Debt Instrument [Line Items]
Variable rate	3.20%	4.60%
Subsidiary debt | Maximum | PAC
Debt Instrument [Line Items]
Variable rate	4.45%	5.60%
Subsidiary debt | 3.60%, due 2024 | PAC
Debt Instrument [Line Items]
Stated rate	3.60%
Par value	$ 0
Subsidiary debt	$ 0	$ 425
Subsidiary debt | 3.35%, due 2025 | PAC
Debt Instrument [Line Items]
Stated rate	3.35%
Par value	$ 250
Subsidiary debt	$ 250	250
Subsidiary debt | 6.71%, due 2026 | PAC
Debt Instrument [Line Items]
Stated rate	6.71%
Par value	$ 100
Subsidiary debt	$ 100	99
Subsidiary debt | 5.10%, due 2029 | PAC
Debt Instrument [Line Items]
Stated rate	5.10%
Par value	$ 500
Subsidiary debt	$ 498	0
Subsidiary debt | 3.50%, due 2029 | PAC
Debt Instrument [Line Items]
Stated rate	3.50%
Par value	$ 400
Subsidiary debt	$ 399	399
Subsidiary debt | 2.70%, due 2030 | PAC
Debt Instrument [Line Items]
Stated rate	2.70%
Par value	$ 400
Subsidiary debt	$ 398	398
Subsidiary debt | 5.30%, due 2031 | PAC
Debt Instrument [Line Items]
Stated rate	5.30%
Par value	$ 700
Subsidiary debt	$ 696	0
Subsidiary debt | 7.70%, due 2031 | PAC
Debt Instrument [Line Items]
Stated rate	7.70%
Par value	$ 300
Subsidiary debt	$ 299	299
Subsidiary debt | 5.45%, due 2034 | PAC
Debt Instrument [Line Items]
Stated rate	5.45%
Par value	$ 1,100
Subsidiary debt	$ 1,093	0
Subsidiary debt | 5.90%, due 2034 | PAC
Debt Instrument [Line Items]
Stated rate	5.90%
Par value	$ 200
Subsidiary debt	$ 199	199
Subsidiary debt | 5.25%, due 2035 | PAC
Debt Instrument [Line Items]
Stated rate	5.25%
Par value	$ 300
Subsidiary debt	$ 299	299
Subsidiary debt | 6.10%, due 2036 | PAC
Debt Instrument [Line Items]
Stated rate	6.10%
Par value	$ 350
Subsidiary debt	$ 348	348
Subsidiary debt | 5.75%, due 2037 | PAC
Debt Instrument [Line Items]
Stated rate	5.75%
Par value	$ 600
Subsidiary debt	$ 600	600
Subsidiary debt | 6.25%, due 2037 | PAC
Debt Instrument [Line Items]
Stated rate	6.25%
Par value	$ 600
Subsidiary debt	$ 598	597
Subsidiary debt | 6.35%, due 2038 | PAC
Debt Instrument [Line Items]
Stated rate	6.35%
Par value	$ 300
Subsidiary debt	$ 298	298
Subsidiary debt | 6.00%, due 2039 | PAC
Debt Instrument [Line Items]
Stated rate	6.00%
Par value	$ 650
Subsidiary debt	$ 644	644
Subsidiary debt | 4.10%, due 2042 | PAC
Debt Instrument [Line Items]
Stated rate	4.10%
Par value	$ 300
Subsidiary debt	$ 298	298
Subsidiary debt | 4.125%, due 2049 | PAC
Debt Instrument [Line Items]
Stated rate	4.125%
Par value	$ 600
Subsidiary debt	$ 594	594
Subsidiary debt | 4.15%, due 2050 | PAC
Debt Instrument [Line Items]
Stated rate	4.15%
Par value	$ 600
Subsidiary debt	$ 594	593
Subsidiary debt | 3.30%, due 2051 | PAC
Debt Instrument [Line Items]
Stated rate	3.30%
Par value	$ 600
Subsidiary debt	$ 591	591
Subsidiary debt | 2.90%, due 2052 | PAC
Debt Instrument [Line Items]
Stated rate	2.90%
Par value	$ 1,000
Subsidiary debt	$ 985	985
Subsidiary debt | 5.35%, due 2053 | PAC
Debt Instrument [Line Items]
Stated rate	5.35%
Par value	$ 1,100
Subsidiary debt	$ 1,088	1,087
Subsidiary debt | 5.50%, due 2054 | PAC
Debt Instrument [Line Items]
Stated rate	5.50%
Par value	$ 1,200
Subsidiary debt	$ 1,189	1,189
Subsidiary debt | 5.80%, due 2055 | PAC
Debt Instrument [Line Items]
Stated rate	5.80%
Par value	$ 1,500
Subsidiary debt	1,478	0
Subsidiary debt | Secured, due 2024 | PAC
Debt Instrument [Line Items]
Par value	0
Subsidiary debt	0	166
Subsidiary debt | Secured, due 2025 | PAC
Debt Instrument [Line Items]
Par value	27
Subsidiary debt	27	27
Subsidiary debt | Unsecured, due 2025 | PAC
Debt Instrument [Line Items]
Par value	25
Subsidiary debt	$ 25	$ 25