Employee Benefit Plans - EGTS (Details) - USD ($) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
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| Other Postretirement Plans | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Employer contributions | $ 0 | ||
| EGTS | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Employee benefit plan liability, noncurrent | 35 | $ 35 | |
| EGTS | MidAmerican Energy Company Retirement Plan | Pension Plan | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Employer contributions | $ 1 | $ 1 | |
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition 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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- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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