Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.21.2
Basis of Presentation (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Qurate Retail, Liberty TripAdvisor, Liberty Broadband, LMAC and GCI Liberty        
Basis of Presentation        
Related Party Transaction, Amounts of Transaction $ 8 $ 7 $ 13 $ 16