Annual report pursuant to Section 13 and 15(d)

Investments In Affiliates Accounted For Using The Equity Method (Other Activity) (Details)

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Investments In Affiliates Accounted For Using The Equity Method (Other Activity) (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Feb. 28, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
May 18, 2016
Schedule of Equity Method Investments [Line Items]          
Gain (Loss) on Sale of Previously Unissued Stock by Subsidiary or Equity Investee, Nonoperating Income   $ 65      
Investments in and Advances to Affiliates, at Fair Value   3,161      
Liberty Broadband          
Schedule of Equity Method Investments [Line Items]          
Investments in and Advances to Affiliates, at Fair Value         $ 2,400
Ownership Interest In Investee         23.00%
QVC Group Common Stock | HSN, Inc.          
Schedule of Equity Method Investments [Line Items]          
Equity Method Investment, Dividends or Distributions $ 200 28 $ 228 $ 22  
Dividend Received Per Share From Equity Method Affiliate $ 10        
Liberty Ventures common stock          
Schedule of Equity Method Investments [Line Items]          
Equity Method Investment Other Than TemporaryImpairment     $ 98    
Investments in and Advances to Affiliates, at Fair Value   $ 3,161