Long-term Debt - MidAmerican Funding LLC (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Par value	$ 55,471
BHE restricted net assets	23,300
MidAmerican Funding, LLC
Debt Instrument [Line Items]
BHE restricted net assets	6,000
MidAmerican Funding LLC \| 6.927% Senior Bonds, due 2029 \| MidAmerican Funding, LLC
Debt Instrument [Line Items]
Par value	$ 239
Stated rate	6.927%
Subsidiary debt	$ 240	$ 240

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details