v3.19.3
Document And Entity Information - shares
9 Months Ended
Sep. 30, 2019
Oct. 31, 2019
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2019  
Document Transition Report false  
Entity File Number 001-35707  
Entity Registrant Name LIBERTY MEDIA CORPORATION  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 37-1699499  
Entity Address, Address Line One 12300 Liberty Boulevard  
Entity Address, City or Town Englewood  
Entity Address, State or Province CO  
Entity Address, Postal Zip Code 80112  
City Area Code 720  
Local Phone Number 875-5400  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Entity Central Index Key 0001560385  
Amendment Flag false  
Liberty Sirius XM Group Common Class A    
Title of 12(b) Security Series A Liberty SiriusXM Common Stock  
Trading Symbol LSXMA  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   102,945,936
Liberty Sirius XM Group Common Class B    
Title of 12(b) Security Series B Liberty SiriusXM Common Stock  
Trading Symbol LSXMB  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   9,810,777
Liberty Sirus XM Group Common Class C    
Title of 12(b) Security Series C Liberty SiriusXM Common Stock  
Trading Symbol LSXMK  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   203,451,287
Liberty Braves Group Common Class A    
Title of 12(b) Security Series A Liberty Braves Common Stock  
Trading Symbol BATRA  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   10,268,578
Liberty Braves Group Common Class B    
Entity Common Stock, Shares Outstanding   981,860
Liberty Braves Group Common Class C    
Title of 12(b) Security Series C Liberty Braves Common Stock  
Trading Symbol BATRK  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   39,804,955
Liberty Formula One Group Common Class A    
Title of 12(b) Security Series A Liberty Formula One Common Stock  
Trading Symbol FWONA  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   25,714,567
Liberty Formula One Group Common Class B    
Entity Common Stock, Shares Outstanding   2,448,903
Liberty Formula One Group Common Class C    
Title of 12(b) Security Series C Liberty Formula One Common Stock  
Trading Symbol FWONK  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   203,051,529