Related Party Transactions - MidAmerican Funding (Details)	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Related Party Transaction [Line Items]
Credit facilities	$ 10,873,000,000	$ 11,281,000,000
Related party, cash received (paid) for income taxes	1,961,000,000	1,441,000,000	$ 1,504,000,000
MidAmerican Funding, LLC
Related Party Transaction [Line Items]
Note payable to affiliate	$ 0	189,000,000
Maximum debt to capitalization ratio	0.67
Minimum interest coverage ratio	2.2
MidAmerican Funding, LLC | Affiliated entity
Related Party Transaction [Line Items]
Expense reimbursement	$ 77,000,000	65,000,000	46,000,000
Receivables from affiliates	10,000,000	11,000,000
Accounts payable to affiliates	22,000,000	17,000,000
Affiliated notes receivable	79,000,000	124,000,000
Due to affiliate, noncurrent	40,000,000	63,000,000
MidAmerican Funding, LLC | BHE
Related Party Transaction [Line Items]
Related party expense	79,000,000	72,000,000	15,000,000
Income tax receivable (payable), related parties current	43,000,000	80,000,000
Related party, cash received (paid) for income taxes	845,000,000	751,000,000	715,000,000
MidAmerican Funding, LLC | Northern Natural Gas and BNSF Railway Company
Related Party Transaction [Line Items]
Purchases from related party	141,000,000	132,000,000	$ 129,000,000
MidAmerican Funding, LLC | BHE Renewables
Related Party Transaction [Line Items]
Purchases from related party		7,000,000
MHC, Inc. | Affiliated entity | MEC
Related Party Transaction [Line Items]
Proceeds from dividends received	275,000,000
MHC, Inc. | Revolving Credit Arrangement, $300 million | Line of credit | BHE
Related Party Transaction [Line Items]
Maximum amount available	300,000,000
Note payable to affiliate	0	$ 189,000,000
Weighted average interest rate		0.353%
MHC, Inc. | Revolving Credit Arrangement, $100 million | Line of credit | BHE
Related Party Transaction [Line Items]
Credit facilities	100,000,000
Notes receivable - affiliate	$ 0	$ 0