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Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

v3.20.4
Document And Entity Information - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2020
Jan. 31, 2021
Jun. 30, 2020
Document Information [Line Items] Ìý Ìý Ìý
Document Type 10-K Ìý Ìý
Document Annual Report true Ìý Ìý
Document Period End Date Dec. 31, 2020 Ìý Ìý
Document Transition Report false Ìý Ìý
Entity File Number 001-35707 Ìý Ìý
Entity Registrant Name LIBERTY MEDIA CORPORATION Ìý Ìý
Entity Incorporation, State or Country Code DE Ìý Ìý
Entity Tax Identification Number 37-1699499 Ìý Ìý
Entity Address, Address Line One 12300 Liberty Boulevard Ìý Ìý
Entity Address, City or Town Englewood Ìý Ìý
Entity Address, State or Province CO Ìý Ìý
Entity Address, Postal Zip Code 80112 Ìý Ìý
City Area Code 720 Ìý Ìý
Local Phone Number 875-5400 Ìý Ìý
Entity Well-known Seasoned Issuer Yes Ìý Ìý
Entity Voluntary Filers No Ìý Ìý
Entity Current Reporting Status Yes Ìý Ìý
Entity Interactive Data Current Yes Ìý Ìý
Entity Filer Category Large Accelerated Filer Ìý Ìý
Entity Small Business false Ìý Ìý
Entity Emerging Growth Company false Ìý Ìý
ICFR Auditor Attestation Flag true Ìý Ìý
Entity Shell Company false Ìý Ìý
Entity Public Float Ìý Ìý $ 18.5
Current Fiscal Year End Date --12-31 Ìý Ìý
Document Fiscal Year Focus 2020 Ìý Ìý
Document Fiscal Period Focus FY Ìý Ìý
Entity Central Index Key 0001560385 Ìý Ìý
Amendment Flag false Ìý Ìý
Liberty Sirius XM Group Common Class A Ìý Ìý Ìý
Document Information [Line Items] Ìý Ìý Ìý
Title of 12(b) Security Series A Liberty SiriusXM Common Stock Ìý Ìý
Trading Symbol LSXMA Ìý Ìý
Security Exchange Name NASDAQ Ìý Ìý
Entity Common Stock, Shares Outstanding Ìý 99,190,965 Ìý
Liberty Sirius XM Group Common Class B Ìý Ìý Ìý
Document Information [Line Items] Ìý Ìý Ìý
Title of 12(b) Security Series B Liberty SiriusXM Common Stock Ìý Ìý
Trading Symbol LSXMB Ìý Ìý
Security Exchange Name NASDAQ Ìý Ìý
Entity Common Stock, Shares Outstanding Ìý 9,802,232 Ìý
Liberty Sirius Xm Group Common Class C Ìý Ìý Ìý
Document Information [Line Items] Ìý Ìý Ìý
Title of 12(b) Security Series C Liberty SiriusXM Common Stock Ìý Ìý
Trading Symbol LSXMK Ìý Ìý
Security Exchange Name NASDAQ Ìý Ìý
Entity Common Stock, Shares Outstanding Ìý 229,056,782 Ìý
Liberty Braves Group Common Class A Ìý Ìý Ìý
Document Information [Line Items] Ìý Ìý Ìý
Title of 12(b) Security Series A Liberty Braves Common Stock Ìý Ìý
Trading Symbol BATRA Ìý Ìý
Security Exchange Name NASDAQ Ìý Ìý
Entity Common Stock, Shares Outstanding Ìý 10,312,670 Ìý
Liberty Braves Group Common Class B Ìý Ìý Ìý
Document Information [Line Items] Ìý Ìý Ìý
Entity Common Stock, Shares Outstanding Ìý 981,778 Ìý
Liberty Braves Group Common Class C Ìý Ìý Ìý
Document Information [Line Items] Ìý Ìý Ìý
Title of 12(b) Security Series C Liberty Braves Common Stock Ìý Ìý
Trading Symbol BATRK Ìý Ìý
Security Exchange Name NASDAQ Ìý Ìý
Entity Common Stock, Shares Outstanding Ìý 40,958,175 Ìý
Liberty Formula One Group Common Class A Ìý Ìý Ìý
Document Information [Line Items] Ìý Ìý Ìý
Title of 12(b) Security Series A Liberty Formula One Common Stock Ìý Ìý
Trading Symbol FWONA Ìý Ìý
Security Exchange Name NASDAQ Ìý Ìý
Entity Common Stock, Shares Outstanding Ìý 25,835,838 Ìý
Liberty Formula One Group Common Class B Ìý Ìý Ìý
Document Information [Line Items] Ìý Ìý Ìý
Entity Common Stock, Shares Outstanding Ìý 2,446,606 Ìý
Liberty Formula One Group Common Class C Ìý Ìý Ìý
Document Information [Line Items] Ìý Ìý Ìý
Title of 12(b) Security Series C Liberty Formula One Common Stock Ìý Ìý
Trading Symbol FWONK Ìý Ìý
Security Exchange Name NASDAQ Ìý Ìý
Entity Common Stock, Shares Outstanding Ìý 203,538,477 Ìý