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, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Contingency [Line Items]      
Deferred Tax Assets, Gross $ 35    
Deferred Tax Liabilities, Domestic Jurisdiction (724)    
Deferred Tax Liabilities, Gross $ 937 $ 897  
Provision at statutory rate 21.00% 21.00% 35.00%
Tax Cuts and Jobs Act, Income Tax Expense (Benefit)   $ 282  
Unrecognized tax benefits that would impact effective tax rate $ 48    
Federal tax effect on unrecognized tax benefits 12    
Significant change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit 2    
UNITED STATES      
Income Tax Contingency [Line Items]      
Provision at statutory rate   21.00% 35.00%
Liberty | Tax Agreement      
Income Tax Contingency [Line Items]      
Cash dividends paid to parent company for taxes 11    
Capital contribution paid to parent company for taxes   $ 2 $ 31
Qurate | Tax Agreement      
Income Tax Contingency [Line Items]      
Due from Affiliates $ 7    
Current tax payments due to related parties   $ (26)