Annual report pursuant to Section 13 and 15(d)

Information About Liberty's Operating Segments (Details)

v3.10.0.1
Information About Liberty's Operating Segments (Details)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2018
USD ($)
Sep. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Sep. 30, 2017
USD ($)
Jun. 30, 2017
USD ($)
Mar. 31, 2017
USD ($)
Dec. 31, 2018
USD ($)
item
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Operating Activities And Reporting Information By Segment [Line Items]                      
Revenue $ 2,009 $ 2,315 $ 2,199 $ 1,517 $ 1,994 $ 2,065 $ 2,140 $ 1,395 $ 8,040 $ 7,594 $ 5,276
Adjusted OIBDA                 $ 2,677 2,493 1,773
SIRIUS XM                      
Operating Activities And Reporting Information By Segment [Line Items]                      
Number of satellite systems | item                 2    
Formula 1                      
Operating Activities And Reporting Information By Segment [Line Items]                      
Duration of World Championship                 9 months    
Liberty Sirius XM Group                      
Operating Activities And Reporting Information By Segment [Line Items]                      
Revenue                 $ 5,771 5,425 5,014
Adjusted OIBDA                 2,214 2,094 1,838
Liberty Sirius XM Group | SIRIUS XM                      
Operating Activities And Reporting Information By Segment [Line Items]                      
Revenue                 5,771 5,425 5,014
Adjusted OIBDA                 2,230 2,109 1,853
Liberty Sirius XM Group | Corporate And Other                      
Operating Activities And Reporting Information By Segment [Line Items]                      
Adjusted OIBDA                 (16) (15) (15)
Braves Group                      
Operating Activities And Reporting Information By Segment [Line Items]                      
Revenue                 442 386 262
Adjusted OIBDA                 88 2 (20)
Braves Group | Corporate And Other                      
Operating Activities And Reporting Information By Segment [Line Items]                      
Revenue                 442 386 262
Adjusted OIBDA                 88 2 (20)
Formula One Group                      
Operating Activities And Reporting Information By Segment [Line Items]                      
Revenue                 1,827 1,783  
Adjusted OIBDA                 375 397 (45)
Formula One Group | Formula 1                      
Operating Activities And Reporting Information By Segment [Line Items]                      
Revenue                 1,827 1,783  
Adjusted OIBDA                 400 438  
Formula One Group | Corporate And Other                      
Operating Activities And Reporting Information By Segment [Line Items]                      
Adjusted OIBDA                 $ (25) $ (41) $ (45)