Liberty Media Corporation Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Related Party Transactions with Officers and Directors (Details)

v3.25.0.1

Related Party Transactions with Officers and Directors (Details)			1 Months Ended	12 Months Ended
	Jan. 06, 2025 USD ($)	Jan. 01, 2020	Dec. 31, 2019 USD ($)	Dec. 31, 2024 USD ($) shares	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2019 USD ($) tranche	Jul. 28, 2021
Former CEO
Allocation percentage				54.00%	54.00%	49.00%
Relative market capitalization percentage				50.00%
Blended average of historical time allocation on a Liberty Media-wide and CEO basis weighted average				50.00%
Employment agreement term		5 years
Annual base salary				$ 3,000,000
One-time cash commitment bonus			$ 5,000,000
Annual target cash performance bonus				17,000,000
Upfront awards							$ 90,000,000
Number Of equal tranches \| tranche							2
Annual equity awards				$ 17,500,000
Chief Executive Officer \| Subsequent Event
Annual base salary	$ 2,500,000
One time signing bonus	150,000
Exchange agreement with chairman \| Chairman John C. Malone
Target Voting Power Maximum								49.00%
Target Voting Power additional percentage								0.50%
Share exchanges \| shares				0
Target voting power plus percentage \| Exchange agreement with chairman \| Chairman John C. Malone
Target Voting Power Maximum								0.50%
Target voting power less percentage \| Exchange agreement with chairman \| Chairman John C. Malone
Target Voting Power additional percentage								0.50%
Liberty Formula One Group Common Class C \| RSUs \| Chief Executive Officer \| Subsequent Event
Upfront awards	15,000,000
Grant date fair value	5,000,000
Liberty Formula One Group Common Class C \| Employee Stock Option \| Chief Executive Officer \| Subsequent Event
Grant date fair value	$ 3,000,000
Common Class B \| Liberty SiriusXM Group \| Exchange agreement with chairman \| Chairman John C. Malone
Stock exchange ratio				1
Common Class B \| Liberty Braves Group \| Exchange agreement with chairman \| Chairman John C. Malone
Stock exchange ratio				1
Common Class B \| Formula One Group \| Exchange agreement with chairman \| Chairman John C. Malone
Stock exchange ratio				1

- Definition

The amount of annual base salary.

+ References

No definition available.

+ Details

Name:	lmca_AnnualBaseSalary
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of annual equity awards.

+ References

No definition available.

+ Details

Name:	lmca_AnnualEquityAwards
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of the annual target cash performance bonus.

+ References

No definition available.

+ Details

Name:	lmca_AnnualTargetCashPerformanceBonus
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The allocation percentage for the Chief Executive Officer's compensation is the weighted average percentage that is based on the blended average of historical time allocation on a Liberty Media-wide and CEO basis.

+ References

No definition available.

+ Details

Name:	lmca_ChiefExecutiveOfficerCompensationAllocationPercentageBlendedAverageHistoricalTimeAllocationWeightedAverage
Namespace Prefix:	lmca_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The allocation percentage for the Chief Executive Officer's compensation is the weighted average percentage that is based on the relative market capitalization.

+ References

No definition available.

+ Details

Name:	lmca_ChiefExecutiveOfficerCompensationAllocationPercentageRelativeMarketCapitalizationWeightedAverage
Namespace Prefix:	lmca_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the length of time of an employment agreement.

+ References

No definition available.

+ Details

Name:	lmca_EmploymentAgreementTerm
Namespace Prefix:	lmca_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of equal tranches to grant the upfront awards.

+ References

No definition available.

+ Details

Name:	lmca_NumberOfEqualTranches
Namespace Prefix:	lmca_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Total number of exchanges of the Company's shares pursuant to the exchange agreement.

+ References

No definition available.

+ Details

Name:	lmca_NumberOfSharesExchanges
Namespace Prefix:	lmca_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The allocation percentage under the officer compensation arrangement.

+ References

No definition available.

+ Details

Name:	lmca_OfficerCompensationArrangementAllocationPercentage
Namespace Prefix:	lmca_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of the one-time cash commitment bonus.

+ References

No definition available.

+ Details

Name:	lmca_OneTimeCashCommitmentBonus
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of the one-time signing bonus.

+ References

No definition available.

+ Details

Name:	lmca_OneTimeSigningBonus
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the total fair value of options granted during the reporting period.

+ References

No definition available.

+ Details

Name:	lmca_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodTotalGrantDateFairValue
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Ratio applied to the exchange of shares of stock.

+ References

No definition available.

+ Details

Name:	lmca_StockholdersEquityExchangeConversionRatio
Namespace Prefix:	lmca_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of target voting power additional percentage.

+ References

No definition available.

+ Details

Name:	lmca_TargetVotingPowerAdditionalConditionalPercentage
Namespace Prefix:	lmca_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of target voting power maximum.

+ References

No definition available.

+ Details

Name:	lmca_TargetVotingPowerPercentage
Namespace Prefix:	lmca_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of upfront awards.

+ References

No definition available.

+ Details

Name:	lmca_UpfrontAwards
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=lmca_FormerChiefExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_ChiefExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=lmca_ExchangeAgreementWithChairmanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_BoardOfDirectorsChairmanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=lmca_TargetVotingPowerPlusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=lmca_TargetVotingPowerLessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=lmca_LibertyFormulaOneGroupCommonClassCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lmca_EconomicPerformanceGroupAxis=lmca_LibertySiriusXmGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lmca_EconomicPerformanceGroupAxis=lmca_LibertyBravesGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	lmca_EconomicPerformanceGroupAxis=lmca_LibertyFormulaOneGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: