Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.10.0.1
Basis of Presentation (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Qurate Retail, TripCo, Liberty Broadband, Expedia Holdings and GCI Liberty        
Entity Information [Line Items]        
Related Party Transaction, Amounts of Transaction $ 5 $ 7 $ 13 $ 11