Schedule I Condensed Financial Statements (Parent Company Only) - Notes - MidAmerican Funding (Details) - MidAmerican Funding LLC - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items]
Dividends declared and paid	$ 425	$ 1,025	$ 69
MHC, Inc.
Condensed Financial Statements, Captions [Line Items]
Accounts payable to affiliates	$ 436	$ 1,037	$ 81

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.

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