Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Narrative) (Details)

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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Income Tax Contingency [Line Items]      
Income tax expense $ (85) $ (60)  
Effective Income Tax Rate Reconciliation, Percent 26.30% 29.90%  
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]      
Current tax payments due to related parties $ 87   $ 47