Investments In Affiliates Accounted For Using The Equity Method (Summary of Share Earnings (Losses) of Affiliates) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings (losses)ffiliates, net	$ (60)	$ 39	$ 33
HSN, Inc.
Equity Method Investments and Operating Activities Segment [Line Items]
Percentage ownership	38.00%
FTD
Equity Method Investments and Operating Activities Segment [Line Items]
Percentage ownership		35.00%
QVC Group Common Stock
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings (losses)ffiliates, net	$ 55	$ 51	48
QVC Group Common Stock | HSN, Inc.
Equity Method Investments and Operating Activities Segment [Line Items]
Percentage ownership	38.00%
Share of earnings (losses)ffiliates, net	$ 64	60	61
QVC Group Common Stock | Other
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings (losses)ffiliates, net	(9)	(9)	(13)
Liberty Ventures common stock
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings (losses)ffiliates, net	$ (115)	(12)	(15)
Liberty Ventures common stock | Expedia
Equity Method Investments and Operating Activities Segment [Line Items]
Percentage ownership	16.00%
Share of earnings (losses)ffiliates, net	$ 118	$ 58	31
Voting ownership interest in investee	52.00%
Liberty Ventures common stock | FTD
Equity Method Investments and Operating Activities Segment [Line Items]
Percentage ownership	37.00%	35.00%
Share of earnings (losses)ffiliates, net	$ (83)
Liberty Ventures common stock | Other
Equity Method Investments and Operating Activities Segment [Line Items]
Share of earnings (losses)ffiliates, net	$ (150)	$ (70)	$ (46)