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
	Mar. 31, 2014	Mar. 31, 2013
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings of affiliates, net	$ (2)	$ (11)
HSN, Inc.
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings of affiliates, net	22	20
Expedia
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings of affiliates, net	(6)	(20)
Interactive Group
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings of affiliates, net	21	16
Interactive Group | Equity method investment, other
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings of affiliates, net	(1)	(4)
Ventures Group
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings of affiliates, net	(23)	(27)
Ventures Group | Equity method investment, other
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings of affiliates, net	$ (17)	$ (7)