Quarterly report pursuant to Section 13 or 15(d)

Information About Liberty's Operating Segments (Details)

v2.4.1.9
Information About Liberty's Operating Segments (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Operating Activities And Reporting Information By Segment [Line Items]    
Revenue, Net $ 1,081us-gaap_SalesRevenueNet $ 1,011us-gaap_SalesRevenueNet
Adjusted OIBDA 373lmca_AdjustedOibda 294lmca_AdjustedOibda
SIRIUS XM    
Operating Activities And Reporting Information By Segment [Line Items]    
Revenue, Net 1,076us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= lmca_SiriusXmMember
988us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= lmca_SiriusXmMember
Adjusted OIBDA 404lmca_AdjustedOibda
/ us-gaap_StatementBusinessSegmentsAxis
= lmca_SiriusXmMember
335lmca_AdjustedOibda
/ us-gaap_StatementBusinessSegmentsAxis
= lmca_SiriusXmMember
Corporate And Other    
Operating Activities And Reporting Information By Segment [Line Items]    
Revenue, Net 5us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
23us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
Adjusted OIBDA $ (31)lmca_AdjustedOibda
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
$ (41)lmca_AdjustedOibda
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember