| Document and Entity Information | Oct. 21, 2019 |
| Document Type | 8-K |
| Document Period End Date | Oct. 21, 2019 |
| Entity Registrant Name | LIBERTY MEDIA CORPORATION |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-35707 |
| Entity Tax Identification Number | 37-1699499 |
| Entity Address, Address Line One | 12300 Liberty Blvd. |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| 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 |
| 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 |
| Liberty Sirius Xm Group Common Class C | |
| Title of 12(b) Security | Series C Liberty SiriusXM Common Stock |
| Trading Symbol | LSXMK |
| Security Exchange Name | NASDAQ |
| Liberty Braves Group Common Class A | |
| Title of 12(b) Security | Series A Liberty Braves Common Stock |
| Trading Symbol | BATRA |
| Security Exchange Name | NASDAQ |
| Liberty Braves Group Common Class C | |
| Title of 12(b) Security | Series C Liberty Braves Common Stock |
| Trading Symbol | BATRK |
| Security Exchange Name | NASDAQ |
| 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 |
| 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 |
