Schedule I Condensed Financial Statements (Parent Company Only) - Condensed Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 1,565	$ 1,591
Accounts receivable	2,667	2,876
Other current assets	1,355	1,345
Total current assets	10,198	11,002
Total investments	4,039	6,462
Goodwill	11,547	11,489	$ 11,650
Other assets	3,170	3,290
Total assets	137,840	133,840	132,065
Current liabilities:
Short-term debt	4,148	1,119
Total current liabilities	13,421	10,313
BHE senior debt	13,101	13,096
BHE junior subordinated debentures	100	100
Other long-term liabilities	6,166	4,706
Total liabilities	88,100	83,201
Shareholders' equity:
Preferred stock	0	850
Common stock	0	0
Additional paid-in capital	5,573	6,298
Retained earnings	44,765	41,833
Accumulated other comprehensive loss, net	(1,904)	(2,149)
Total shareholder's equity	48,434	46,832
Total equity	49,740	50,639	$ 50,589	$ 46,977
Total liabilities and shareholder's equity	137,840	133,840
Parent Company
Current assets:
Cash and cash equivalents	166	32
Notes receivable - affiliate	$ 19	$ 10
Note receivable from affiliate, related party type	Affiliated entity	Affiliated entity
Income tax receivable	$ 44	$ 28
Other current assets	15	12
Total current assets	1,105	349
Investments in subsidiaries	61,032	59,944
Total investments	248	205
Goodwill	1,221	1,221
Other assets	1,291	1,152
Total assets	64,897	62,871
Current liabilities:
Accounts payable and other current liabilities	613	429
Notes payable to affiliates	$ 202	$ 287
Notes payable to affiliates, related party type	Affiliated entity	Affiliated entity
Short-term debt	$ 1,935	$ 245
Current portion of senior debt	0	900
Total current liabilities	2,750	1,861
BHE senior debt	13,101	13,096
BHE junior subordinated debentures	100	100
Notes payable - affiliate	0	477
Other long-term liabilities	512	505
Total liabilities	16,463	16,039
Shareholders' equity:
Preferred stock	0	850
Common stock	0	0
Additional paid-in capital	5,573	6,298
Retained earnings	44,765	41,833
Accumulated other comprehensive loss, net	(1,904)	(2,149)
Total shareholder's equity	48,434	46,832
Total equity	48,434	46,832
Total liabilities and shareholder's equity	64,897	62,871
Parent Company | Nonrelated Party
Current assets:
Accounts receivable	0	4
Parent Company | Related party
Current assets:
Accounts receivable	861	263
MidAmerican Funding LLC
Current assets:
Other receivables	$ 1	$ 1
Other receivable, related party type	Affiliated entity	Affiliated entity
Investments in subsidiaries	$ 10,925	$ 10,959
Total assets	10,926	10,960
Current liabilities:
Notes payable to affiliates	$ 48	$ 36
Notes payable to affiliates, related party type	Affiliated entity	Affiliated entity
Other accrued current liabilities	$ 5	$ 5
Long-term debt	240	240
Total liabilities	293	281
Shareholders' equity:
Paid-in capital	1,679	1,679
Retained earnings	8,954	9,000
Total shareholder's equity	10,633	10,679
Total liabilities and shareholder's equity	$ 10,926	$ 10,960