Quarterly report pursuant to Section 13 or 15(d)

Investments In Affiliates Accounted For Using The Equity Method (Schedule Of Liberty's Share Of Earnings (Losses) Of Affiliates) (Details)

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Investments In Affiliates Accounted For Using The Equity Method (Schedule Of Liberty's Share Of Earnings (Losses) Of Affiliates) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Equity Method Investments and Operating Activities Segment [Line Items]        
Share of earnings of affiliates, net $ 4 $ 7 $ 2 $ (4)
Interactive Group
       
Equity Method Investments and Operating Activities Segment [Line Items]        
Share of earnings of affiliates, net 7 4 28 20
Interactive Group | HSN, Inc.
       
Equity Method Investments and Operating Activities Segment [Line Items]        
Share of earnings of affiliates, net 9 11 31 31
Interactive Group | Equity method investment, other
       
Equity Method Investments and Operating Activities Segment [Line Items]        
Share of earnings of affiliates, net (2) (7) (3) (11)
Ventures Group
       
Equity Method Investments and Operating Activities Segment [Line Items]        
Share of earnings of affiliates, net (3) 3 (26) (24)
Ventures Group | Expedia
       
Equity Method Investments and Operating Activities Segment [Line Items]        
Share of earnings of affiliates, net 10 10 4 (10)
Ventures Group | Equity method investment, other
       
Equity Method Investments and Operating Activities Segment [Line Items]        
Share of earnings of affiliates, net (13) (7) (30) (14)
Expedia | TripAdvisor, Inc.
       
Equity Method Investments and Operating Activities Segment [Line Items]        
Revenue from Related Parties $ 60 $ 54 $ 125 $ 115