Investments In Affiliates Accounted For Using The Equity Method (Expedia Consolidated Balance Sheets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2013 HSN, Inc. [Member]	Sep. 30, 2012 HSN, Inc. [Member]
Current assets	$ 4,426	$ 5,258		$ 773	$ 776
Property and equipment, net	1,247	1,235		171	159
Goodwill	9,332	9,556	5,978	10	10
Intangible assets				266	267
Other assets	98	95		6	7
Total assets	24,676	26,255		1,226	1,219
Current liabilities	3,756	4,489		412	411
Deferred income taxes	2,844	3,209		90	76
Long-term debt	6,406	6,246		231	244
Other liabilities	235	260		11	15
Noncontrolling interests	4,499	4,489
Equity	6,936	7,562		482	473
Total liabilities and equity	$ 24,676	$ 26,255		$ 1,226	$ 1,219