Liberty Media Corporation Annual report pursuant to Section 13 and 15(d)

Transactions with Officers (Details 2) (USD $)	1 Months Ended		12 Months Ended
Transactions with Officers (Details 2) (USD $)	Dec. 31, 2014	Dec. 31, 2008 item	Dec. 31, 2009
Annual base salary increase	5.00%lmca_AnnualBaseSalaryIncrease
Annual target cash bonus	250.00%lmca_AnnualTargetCashBonus
Chairman
deferred compensation installments		240
Chairman \| 8% Plan [Member]
Accrued Interest Rate per Annum compounded annually from applicable date of deferral		8.00%
Deferred Compensation Liability, Current and Noncurrent		2,400,000
Deferred Compensation Arrangement with Individual, Distributions Paid	20,000
Chairman \| 13% plan [Member]
Accrued Interest Rate per Annum compounded annually from applicable date of deferral		13.00%
Deferred Compensation Liability, Current and Noncurrent		20,000,000
Deferred Compensation Arrangement with Individual, Distributions Paid	237,000
Chairman \| Salary Continuation Plan [Member]
Accrued Interest Rate per Annum compounded annually from applicable date of deferral			12.00%
Deferred Compensation Liability, Current and Noncurrent		39,000,000
Base amount per month under salary continuation plan			15,000
Deferred Compensation Arrangement with Individual, Distributions Paid	164,000