Quarterly report pursuant to Section 13 or 15(d)

Information About Liberty's Operating Segments - Other Information (Details)

v3.10.0.1
Information About Liberty's Operating Segments - Other Information (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Operating Activities And Reporting Information By Segment [Line Items]      
Assets $ 41,807   $ 41,996
Investments in affiliates, accounted for using the equity method 1,659   1,750
Capital expenditures 191 $ 266  
Elimination      
Operating Activities And Reporting Information By Segment [Line Items]      
Assets (235)    
Liberty Sirius XM Group      
Operating Activities And Reporting Information By Segment [Line Items]      
Assets 28,514    
Investments in affiliates, accounted for using the equity method 642   672
Capital expenditures 174 119  
Liberty Sirius XM Group | SIRIUS XM      
Operating Activities And Reporting Information By Segment [Line Items]      
Assets 27,899    
Investments in affiliates, accounted for using the equity method 642    
Capital expenditures 174    
Liberty Sirius XM Group | Corporate And Other      
Operating Activities And Reporting Information By Segment [Line Items]      
Assets 615    
Braves Group      
Operating Activities And Reporting Information By Segment [Line Items]      
Assets 1,939    
Investments in affiliates, accounted for using the equity method 97   145
Capital expenditures 14 145  
Braves Group | Corporate And Other      
Operating Activities And Reporting Information By Segment [Line Items]      
Assets 1,939    
Investments in affiliates, accounted for using the equity method 97    
Capital expenditures 14    
Formula One Group      
Operating Activities And Reporting Information By Segment [Line Items]      
Assets 11,589    
Investments in affiliates, accounted for using the equity method 920   $ 933
Capital expenditures 3 $ 2  
Formula One Group | Formula 1      
Operating Activities And Reporting Information By Segment [Line Items]      
Assets 9,327    
Capital expenditures 1    
Formula One Group | Corporate And Other      
Operating Activities And Reporting Information By Segment [Line Items]      
Assets 2,262    
Investments in affiliates, accounted for using the equity method 920    
Capital expenditures $ 2