Quarterly report pursuant to Section 13 or 15(d)

Investments In Affiliates Accounted For Using The Equity Method (Schedule Of Equity Ownership And Carrying Amount) (Details)

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Investments In Affiliates Accounted For Using The Equity Method (Schedule Of Equity Ownership And Carrying Amount) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 1 Months Ended 3 Months Ended
May 01, 2013
Jun. 30, 2014
Dec. 31, 2013
Equity Method Investments and Operating Activities Segment [Line Items]      
Investments in affiliates, accounted for using the equity method   $ 3,338 $ 3,299
Charter Communications
      
Equity Method Investments and Operating Activities Segment [Line Items]      
Purchase of shares in equity method investee 26,900,000 896,845  
Payments to Acquire Investments   124  
Percentage ownership 27.00% 26.00% [1]  
Equity Method Investment, Quoted Market Value   4,396 [1]  
Investments in affiliates, accounted for using the equity method   2,420 [1] 2,395 [1]
Live Nation
      
Equity Method Investments and Operating Activities Segment [Line Items]      
Purchase of shares in equity method investee   1,700,000  
Payments to Acquire Investments   39  
Percentage ownership   27.00% [2],[3]  
Equity Method Investment, Quoted Market Value   1,327 [2],[3]  
Investments in affiliates, accounted for using the equity method   448 [2],[3] 409 [2],[3]
Sirius XM Canada
      
Equity Method Investments and Operating Activities Segment [Line Items]      
Percentage ownership   37.00%  
Equity Method Investment, Quoted Market Value   310  
Investments in affiliates, accounted for using the equity method   242 273
Equity method investment, other
      
Equity Method Investments and Operating Activities Segment [Line Items]      
Investments in affiliates, accounted for using the equity method   $ 228 $ 222
[1] As discussed below, Liberty acquired its interest in Charter during the three months ended June 30, 2013 for approximately $2.6 billion. Additionally, during the three months ended June 30, 2014 Liberty acquired 896,845 shares of Charter for $124 million.
[2] See note 8 for details regarding the number and fair value of shares pledged as collateral pursuant to certain margin loan agreements as of June 30, 2014.
[3] During the three months ended June 30, 2014, Liberty acquired approximately 1.7 million shares of Live Nation for approximately $39 million.