Quarterly report pursuant to Section 13 or 15(d)

Information About Liberty's Operating Segments (Performance Measures By Segment) (Details)

v2.4.1.9
Information About Liberty's Operating Segments (Performance Measures By Segment) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Total revenues $ 2,214us-gaap_SalesRevenueNet $ 2,434us-gaap_SalesRevenueNet
Adjusted OIBDA 419linta_AdjustedOibda 434linta_AdjustedOibda
Liberty Interactive common stock    
Total revenues 1,938us-gaap_SalesRevenueNet
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
2,434us-gaap_SalesRevenueNet
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
Adjusted OIBDA 401linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
437linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
Liberty Interactive common stock | QVC    
Total revenues 1,938us-gaap_SalesRevenueNet
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= linta_QvcMember
1,986us-gaap_SalesRevenueNet
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= linta_QvcMember
Adjusted OIBDA 407linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= linta_QvcMember
412linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= linta_QvcMember
Liberty Interactive common stock | Digital commerce    
Total revenues   448us-gaap_SalesRevenueNet
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= linta_ECommerceMember
Adjusted OIBDA   29linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= linta_ECommerceMember
Liberty Interactive common stock | Corporate and Other    
Adjusted OIBDA (6)linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
(4)linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
Liberty Ventures common stock    
Total revenues 276us-gaap_SalesRevenueNet
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
 
Adjusted OIBDA 18linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
(3)linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
Liberty Ventures common stock | Digital commerce    
Total revenues 276us-gaap_SalesRevenueNet
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= linta_ECommerceMember
 
Adjusted OIBDA 22linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= linta_ECommerceMember
 
Liberty Ventures common stock | Corporate and Other    
Adjusted OIBDA $ (4)linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember
$ (3)linta_AdjustedOibda
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateAndOtherMember