Schedule I Condensed Financial Statements (Parent Company Only) - Condensed Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,591	$ 1,096
Accounts receivable	2,876	2,468
Other current assets	1,345	1,583
Total current assets	11,002	8,248
Total investments	6,462	8,490
Goodwill	11,489	11,650	$ 11,506
Other assets	3,290	3,144
Total assets	133,840	132,065	127,316
Current liabilities:
Short-term debt	1,119	2,009
Total current liabilities	10,313	8,762
BHE senior debt	13,096	13,003
BHE junior subordinated debentures	100	100
Long-term debt	51,635	49,762
Other long-term liabilities	4,706	4,319
Total liabilities	83,201	81,476
Shareholders' equity:
Preferred stock	850	1,650
Common stock	0	0
Additional paid-in capital	6,298	6,374
Long-term income tax receivable	0	744
Retained earnings	41,833	40,754
Accumulated other comprehensive loss, net	(2,149)	(1,340)
Total shareholder's equity	46,832	46,694
Noncontrolling interest	3,807	3,895
Total equity	50,639	50,589	$ 46,977	$ 32,578
Total liabilities and shareholder's equity	133,840	132,065
Parent Company
Current assets:
Cash and cash equivalents	32	18
Accounts receivable	4	0
Receivables from affiliates	263	117
Notes receivable - affiliate	10	189
Income tax receivable	28	23
Other current assets	12	13
Total current assets	349	360
Investments in subsidiaries	59,944	58,190
Total investments	205	237
Goodwill	1,221	1,221
Other assets	1,152	1,101
Total assets	62,871	61,109
Current liabilities:
Accounts payable and other current liabilities	429	397
Note payable to affiliate	287	353
Short-term debt	245	0
Current portion of senior debt	900	0
Total current liabilities	1,861	750
BHE senior debt	13,096	13,003
BHE junior subordinated debentures	100	100
Notes payable - affiliate	477	2
Other long-term liabilities	505	560
Total liabilities	16,039	14,415
Shareholders' equity:
Preferred stock	850	1,650
Common stock	0	0
Additional paid-in capital	6,298	6,374
Long-term income tax receivable	0	744
Retained earnings	41,833	40,754
Accumulated other comprehensive loss, net	(2,149)	(1,340)
Total shareholder's equity	46,832	46,694
Noncontrolling interest	0	0
Total equity	46,832	46,694
Total liabilities and shareholder's equity	62,871	61,109
MidAmerican Funding LLC
Current assets:
Receivables from affiliates	1	1
Investments in subsidiaries	10,959	10,070
Total assets	10,960	10,071
Current liabilities:
Other accrued current liabilities	5	5
Notes payable - affiliate	36	25
Long-term debt	240	240
Total liabilities	281	270
Shareholders' equity:
Paid-in capital	1,679	1,679
Retained earnings	9,000	8,122
Total shareholder's equity	10,679	9,801
Total liabilities and shareholder's equity	$ 10,960	$ 10,071