Income Taxes (Narrative) (Details) - USD ($) $ in Millions  | 
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2025  | 
Mar. 31, 2024  | 
Dec. 31, 2024  | 
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| Income Tax Contingency [Line Items] | |||
| Income tax (expense) benefit | $ (2) | $ 32 | |
| Effective Income Tax Rate Reconciliation, Percent | 5.70% | 34.00% | |
| UNITED STATES | |||
| Income Tax Contingency [Line Items] | |||
| Effective income tax rate reconciliation, at federal statutory income tax rate, percent | 21.00% | ||
| Liberty | Tax Agreement | |||
| Income Tax Contingency [Line Items] | |||
| Taxes Payable | $ 19 | $ 32 | |
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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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. No definition available. 
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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