Income Taxes (Narrative) (Details) - USD ($) $ in Millions  | 
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2023  | 
Sep. 30, 2022  | 
Sep. 30, 2023  | 
Sep. 30, 2022  | 
Dec. 31, 2022  | 
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| Income Tax Contingency [Line Items] | |||||
| Income tax expense | $ (34) | $ (101) | $ (173) | $ (251) | |
| Effective Income Tax Rate Reconciliation, Percent | 35.10% | (4.80%) | 29.00% | (15.50%) | |
| Effective Income Tax Rate Excluding Goodwill Impairment | 32.90% | 31.50% | |||
| QxH [Member] | |||||
| Income Tax Contingency [Line Items] | |||||
| Goodwill, Impairment Loss | $ 2,420 | ||||
| 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 | $ 3 | $ 3 | $ 23 | ||
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- Definition Effective Income Tax Rate Excluding Goodwill Impairment No definition available. 
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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 Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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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/disclosureRef 
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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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