Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.21.1
Basis of Presentation (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Qurate Retail, Liberty TripAdvisor, Liberty Broadband, LMAC and GCI Liberty    
Basis of Presentation    
Related Party Transaction, Amounts of Transaction $ 8 $ 10