Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.19.2
Basis of Presentation (Details)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 31, 2018
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Mar. 09, 2018
item
Basic of presentation            
Number Of Tracking Stock | item           2
LMC            
Basic of presentation            
Related Party Transaction, Amounts of Transaction   $ 1 $ 2 $ 3 $ 4  
GCI Liberty            
Basic of presentation            
Tax sharing payable   82   82    
Retained Earnings            
Basic of presentation            
Reclassification   $ (68) $ (255) (265) $ (3,785)  
Liberty Ventures common stock | Common Class A            
Basic of presentation            
Share exchange ratio           1
Liberty Ventures common stock | Common Class B            
Basic of presentation            
Share exchange ratio           1
Transfer to entity under common control | QVC Group            
Basic of presentation            
Ownership interest transferred 100          
Reclassification Of Working Capital Categories In Operating Activities Of Statement Of Cash Flows            
Basic of presentation            
Reclassification of prior period immaterial error       $ 281