Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Contingency [Line Items]      
Deferred Tax Assets, Gross $ 34 $ 35  
Deferred Tax Liabilities, Domestic Jurisdiction 711 (724)  
Deferred Tax Liabilities, Gross $ 917 $ 937  
Provision at statutory rate 21.00% 21.00% 21.00%
Unrecognized tax benefits that would impact effective tax rate $ 53 $ 48  
Federal tax effect on unrecognized tax benefits 14 12  
Significant change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit 3    
Qurate | Tax Agreement      
Income Tax Contingency [Line Items]      
Cash dividends paid to parent company for taxes   11  
Capital contribution paid to parent company for taxes 1   $ 2
Due from Affiliates   $ (7)  
Current tax payments due to related parties $ 47