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

Summary of Significant Accounting Policies - Revenue recognition - Performance obligations (Details) - Formula One and Braves Holdings $ in Millions	Dec. 31, 2020 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Remaining performance obligations
Remaining performance obligation, revenue expected to be recognized	$ 2,121
Expected timing of satisfaction period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Remaining performance obligations
Remaining performance obligation, revenue expected to be recognized	$ 1,853
Expected timing of satisfaction period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Remaining performance obligations
Remaining performance obligation, revenue expected to be recognized	$ 4,039
Expected timing of satisfaction period	72 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01
Remaining performance obligations
Remaining performance obligation, revenue expected to be recognized	$ 384
Expected timing of satisfaction period	84 months