Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.8.0.1
Document And Entity Information - shares
9 Months Ended
Sep. 30, 2017
Oct. 31, 2017
Entity Registrant Name Liberty Media Corp  
Entity Central Index Key 0001560385  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Sep. 30, 2017  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q3  
Amendment Flag false  
Liberty Sirius XM Group Common Class A    
Entity Common Stock, Shares Outstanding   102,700,528
Liberty Sirius XM Group Common Class B    
Entity Common Stock, Shares Outstanding   9,821,531
Liberty Sirus XM Group Common Class C    
Entity Common Stock, Shares Outstanding   223,561,212
Liberty Braves Group Common Class A    
Entity Common Stock, Shares Outstanding   10,243,259
Liberty Braves Group Common Class B    
Entity Common Stock, Shares Outstanding   981,860
Liberty Braves Group Common Class C    
Entity Common Stock, Shares Outstanding   38,242,004
Liberty Formula One Group Common Class A    
Entity Common Stock, Shares Outstanding   25,649,611
Liberty Formula One Group Common Class B    
Entity Common Stock, Shares Outstanding   2,454,448
Liberty Formula One Group Common Class C    
Entity Common Stock, Shares Outstanding   201,485,870