BHE Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
BHE Debt [Line Items]
Par value	$ 55,471
Noncurrent senior debt	11,457	$ 13,101
BHE junior subordinated debentures	0	100
Senior notes | BHE
BHE Debt [Line Items]
Par value	13,201
Senior Notes, Total	13,107	13,101
Current senior debt	1,650	0
Noncurrent senior debt	$ 11,457	13,101
Senior notes | BHE | 3.5% Senior Notes, due 2025
BHE Debt [Line Items]
Stated rate	3.50%
Par value	$ 400
Senior Notes, Total	$ 400	399
Senior notes | BHE | 4.05% Senior Notes, due 2025
BHE Debt [Line Items]
Stated rate	4.05%
Par value	$ 1,250
Senior Notes, Total	$ 1,250	1,248
Senior notes | BHE | 3.25% Senior Notes, due 2028
BHE Debt [Line Items]
Stated rate	3.25%
Par value	$ 600
Senior Notes, Total	$ 597	593
Senior notes | BHE | 8.48% Senior Notes, due 2028
BHE Debt [Line Items]
Stated rate	8.48%
Par value	$ 256
Senior Notes, Total	$ 257	264
Senior notes | BHE | 3.7% Senior Notes, due 2030
BHE Debt [Line Items]
Stated rate	3.70%
Par value	$ 1,100
Senior Notes, Total	$ 1,097	1,096
Senior notes | BHE | 1.65% Senior Notes, due 2031
BHE Debt [Line Items]
Stated rate	1.65%
Par value	$ 500
Senior Notes, Total	$ 498	498
Senior notes | BHE | 6.125% Senior Bonds, due 2036
BHE Debt [Line Items]
Stated rate	6.125%
Par value	$ 1,670
Senior Notes, Total	$ 1,663	1,663
Senior notes | BHE | 5.95% Senior Bonds, due 2037
BHE Debt [Line Items]
Stated rate	5.95%
Par value	$ 550
Senior Notes, Total	$ 548	548
Senior notes | BHE | 6.5% Senior Bonds, due 2037
BHE Debt [Line Items]
Stated rate	6.50%
Par value	$ 225
Senior Notes, Total	$ 223	223
Senior notes | BHE | 5.15% Senior Notes, due 2043
BHE Debt [Line Items]
Stated rate	5.15%
Par value	$ 750
Senior Notes, Total	$ 741	741
Senior notes | BHE | 4.5% Senior Notes, due 2045
BHE Debt [Line Items]
Stated rate	4.50%
Par value	$ 750
Senior Notes, Total	$ 739	739
Senior notes | BHE | 3.8% Senior Notes, due 2048
BHE Debt [Line Items]
Stated rate	3.80%
Par value	$ 750
Senior Notes, Total	$ 738	736
Senior notes | BHE | 4.45% Senior Notes, due 2049
BHE Debt [Line Items]
Stated rate	4.45%
Par value	$ 1,000
Senior Notes, Total	$ 991	990
Senior notes | BHE | 4.25% Senior Notes, due 2050
BHE Debt [Line Items]
Stated rate	4.25%
Par value	$ 900
Senior Notes, Total	$ 889	889
Senior notes | BHE | 2.85% Senior Notes, due 2051
BHE Debt [Line Items]
Stated rate	2.85%
Par value	$ 1,500
Senior Notes, Total	$ 1,489	1,488
Senior notes | BHE | 4.6% Senior Notes, due 2053
BHE Debt [Line Items]
Stated rate	4.60%
Par value	$ 1,000
Senior Notes, Total	987	986
Junior subordinated debt | BHE
BHE Debt [Line Items]
Par value	0
BHE junior subordinated debentures	$ 0	100
Junior subordinated debt | BHE | 5.00% Junior subordinated debentures, due 2057
BHE Debt [Line Items]
Stated rate	5.00%
Par value	$ 0
BHE junior subordinated debentures	0	100
Interest expense	$ 4	$ 5	$ 5