Liberty Media Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Notes Tables
Notes Details

Commitments And Contingencies (Details)

v3.8.0.1

Commitments And Contingencies (Details) € in Millions, $ in Millions	1 Months Ended	3 Months Ended			9 Months Ended
	Aug. 31, 2013 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Jan. 17, 2013 EUR (€)	Jun. 25, 2012 EUR (€)
Loss Contingencies [Line Items]
Legal settlement, net						$ 511
Revenue share and royalties		$ 297	$ 273		$ 867	$ 789
Compensation guarantee aggregate total		214			214
Amounts payable under guarantee in 2017		5			5
Amounts payable under guarantee in 2018		85			85
Amounts payable under guarantee in 2019		63			63
Amounts payable under guarantee in 2020		30			30
Amount payable under guarantee, thereafter		31			31
Vivendi Universal SA Suit [Member]
Loss Contingencies [Line Items]
Litigation settlement from other party				$ 775
Legal settlement, net				$ 511
Pending Litigation \| Vivendi Universal SA Suit [Member]
Loss Contingencies [Line Items]
Gain Contingency, Unrecorded Amount \| €								€ 765
Pending Litigation \| Sound exchange Lawsuit [Member] \| SIRIUS XM
Loss Contingencies [Line Items]
Loss Contingency Accrual, at Carrying Value		0			0
Including prejudgment interest \| Pending Litigation \| Vivendi Universal SA Suit [Member]
Loss Contingencies [Line Items]
Gain Contingency, Unrecorded Amount \| €							€ 945
Minimum \| Pending Litigation \| Sound exchange Lawsuit [Member] \| SIRIUS XM
Loss Contingencies [Line Items]
Damages sought	$ 50
Estimate of Possible Loss		0			0
Maximum \| Pending Litigation \| Sound exchange Lawsuit [Member] \| SIRIUS XM
Loss Contingencies [Line Items]
Damages sought	$ 100
Estimate of Possible Loss		$ 85			$ 85

- Definition

Amounts payable under guarantee, thereafter

+ References

No definition available.

+ Details

Name:	lmca_AmountsPayableUnderGuaranteeThereafter
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Compensation guarantee aggregate total

+ References

No definition available.

+ Details

Name:	lmca_CompensationGuaranteeAggregateTotal
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Guaranteed employment contract due in four years

+ References

No definition available.

+ Details

Name:	lmca_GuaranteedEmploymentContractDueInFourYears
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Guaranteed employment contract due, current

+ References

No definition available.

+ Details

Name:	lmca_GuaranteedEmploymentContractDueInOneYear
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Guaranteed employment contract due in three years

+ References

No definition available.

+ Details

Name:	lmca_GuaranteedEmploymentContractDueInThreeYears
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Guaranteed employment contract due in two years.

+ References

No definition available.

+ Details

Name:	lmca_GuaranteedEmploymentContractDueInTwoYears
Namespace Prefix:	lmca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Distribution and content provider revenue share, residuals and broadcast and web streaming royalties.

+ References

No definition available.

+ Details

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

- Definition

The amount or range of possible amounts of gain that could be realized upon the resolution of a contingency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6397426&loc=d3e17499-108355

+ Details

Name:	us-gaap_GainContingencyUnrecordedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

+ References

+ Details

Name:	us-gaap_GainLossRelatedToLitigationSettlement
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount awarded from other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementAmountAwardedFromOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of loss contingency liability.

+ References

+ Details

Name:	us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

+ Details

Name:	us-gaap_LossContingencyDamagesSoughtValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

+ Details

Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_LitigationCaseAxis=lmca_VivendiUniversalSaLawsuitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LitigationStatusAxis=us-gaap_PendingLitigationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LitigationCaseAxis=lmca_SoundExchangeLawsuitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=lmca_SiriusXmMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_GainContingenciesByNatureAxis=lmca_IncludingPrejudgementInterestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: