Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Narrative) (Details)

v3.8.0.1
Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Income Tax Contingency [Line Items]      
Income tax expense $ (79) $ (77)  
Effective income tax rate reconciliation, percent 27.60% 36.30%  
UNITED STATES      
Income Tax Contingency [Line Items]      
Effective income tax rate reconciliation, at federal statutory income tax rate, percent 21.00% 35.00%  
Liberty | Tax Agreement      
Income Tax Contingency [Line Items]      
Current tax payments due to related parties $ 109   $ 60