Summary of Significant Accounting Policies - BHE - Schedule of Allowance for Credit Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 108	$ 77	$ 44
Charged to operating costs and expenses, net	43	81	56
Acquisitions	0	0	5
Write-offs, net	(45)	(50)	(28)
Ending balance	$ 106	$ 108	$ 77