Schedule I Condensed Balance Sheets (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents		$ 1,040	$ 627
Accounts receivable		1,910	2,038
Other current assets		839	943
Total current assets		5,913	5,147
Goodwill		9,722	9,595	$ 9,678
Other assets		2,090	1,561
Total assets		100,051	92,189	90,208
Current liabilities:
Short-term debt	[1]	3,214	2,516
Total current liabilities		10,257	8,770
BHE senior debt		8,231	8,577
BHE junior subordinated debentures		100	100
Long-term Debt		39,353	36,774
Other long-term liabilities		3,649	3,134
Total liabilities		67,473	62,466
Shareholders' equity:
Common stock		0	0
Additional paid-in capital		6,389	6,371
Long-term income tax receivable		(530)	(457)
Retained earnings		28,296	25,624
Accumulated other comprehensive loss, net		(1,706)	(1,945)
Total shareholders' equity		32,449	29,593
Noncontrolling interest		129	130
Total equity		32,578	29,723	28,308	$ 24,463
Total liabilities and shareholder's equity		100,051	92,189
Parent Company [Member]
Current assets:
Cash and cash equivalents		13	9	346	33
Accounts Receivable, Related Parties		87	100
Due from Affiliates		181	156
Income tax receivable		3	103
Other current assets		8	15
Total current assets		292	383
Investments in subsidiaries		40,204	36,602
Other Investments		1,300	1,579
Goodwill		1,221	1,221
Other assets		695	546
Total assets		43,712	40,331
Current liabilities:
Accounts payable and other current liabilities		194	183
Notes Payable, Related Parties, Current		240	328
Short-term debt		1,590	983
Current portion of senior debt		350	0
Total current liabilities		2,374	1,494
BHE senior debt		8,231	8,577
BHE junior subordinated debentures		100	100
Notes payable - affiliate		2	1
Other long-term liabilities		530	543
Total liabilities		11,237	10,715
Shareholders' equity:
Common stock		0	0
Additional paid-in capital		6,389	6,371
Retained earnings		28,296	25,624
Accumulated other comprehensive loss, net		(1,706)	(1,945)
Total shareholders' equity		32,449	29,593
Noncontrolling interest		26	23
Total equity		32,475	29,616
Total liabilities and shareholder's equity		43,712	40,331
MidAmerican Funding LLC [Member]
Current assets:
Cash and cash equivalents		0	0	$ 0	$ 0
Due from Affiliates		2	2
Total current assets		2	2
Investments in subsidiaries		8,346	8,002
Total assets		8,348	8,004
Current liabilities:
Other accrued current liabilities		6	6
Long-term Debt		240	240
Notes payable - affiliate		1	429
Total liabilities		247	675
Shareholders' equity:
Paid-in capital		1,679	1,679
Retained earnings		6,422	5,650
Total shareholders' equity		8,101	7,329
Total liabilities and shareholder's equity		$ 8,348	$ 8,004

[1] (1)The table does not include unused credit facilities and letters of credit for investments that are accounted for under the equity method.