Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Related Party Transactions:
Dr. John Malone's voting interest in Liberty Interactive Corp. (percentage)	36.40%		36.40%
Liberty Interactive Corp.'s ownership percentage in HSN, Inc. (percentage)	38.30%		38.30%
Percent of board members Liberty Interactive Corp. can elect to HSN Inc.'s board (percentage)	20.00%		20.00%
Cash payments received from HSN, Inc. and QVC, Inc.	$ 18	$ 4	$ 33	$ 12
Dr. John Malone's ownership percentage in Discovery Communications, Inc. (percentage)	4.90%		4.90%
Dr. John Malone's voting interest in Discovery Communications, Inc. for election of directors (percentage)	28.60%		28.60%
Advance Newhouse Programming Partnership's ownership percentage in Series A preferred stock of Discovery Communications, Inc. (percentage)	100.00%		100.00%
Advance Newhouse Programming Partnership's ownership percentage in Series C preferred stock of Discovery Communications, Inc. (percentage)	100.00%		100.00%
Advance Newhouse Programming Partnership's ownership percentage in Discovery (percentage)	34.00%		34.00%
Dr. John Malone's ownership percentage in Starz (percentage)	6.40%		6.40%
Dr. John Malone's voting interest in Starz (percentage)	48.10%		48.10%
Maximum [Member]
Related Party Transactions:
Percent of total operating costs and expenses paid to Discovery Communications, Inc. and Starz (percentage)	3.00%	3.00%	3.00%	3.00%
Equity Method Investee [Member]
Related Party Transactions:
Payments to related parties	$ 67	$ 1	$ 108	$ 2
Revenue from related parties	3		4
Loans due from related parties	$ 5		$ 5