Quarterly report pursuant to Section 13 or 15(d)

Investments in Affiliates Accounted for Using the Equity Method (Details)

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Investments in Affiliates Accounted for Using the Equity Method (Details)
$ / shares in Units, shares in Thousands, $ in Millions
 1 Months Ended
May 18, 2016
USD ($)
$ / shares
shares
May 18, 2015
Nov. 30, 2014
USD ($)
May 31, 2014
USD ($)
shares
May 31, 2013
USD ($)
$ / shares
shares
Jun. 30, 2016
USD ($)
Charter            
Investments in affiliates accounted for using the Equity Method            
Number of shares of common shares acquired | shares 22,000          
Share Price | $ / shares $ 195.70          
Cash paid to acquire equity method investments $ 4,300.0          
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity           $ 1,199.0
Cash paid to exercise warrants     $ 52.0      
Common stock par value | $ / shares $ 0.001          
Business Acquisition, Percentage of Voting Interests Acquired 25.01%          
Liberty | Charter            
Investments in affiliates accounted for using the Equity Method            
Number of shares of common shares acquired | shares       897 26,900  
Number of warrants acquired | shares         1,100  
Purchase price of equity method investments       $ 124.5 $ 2,600.0  
Beneficial ownership percentage         27.00%  
Share Price | $ / shares         $ 95.50  
Cash paid to acquire equity method investments         $ 1,200.0  
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity         $ 2,532.0  
A/N            
Investments in affiliates accounted for using the Equity Method            
Maximum percentage of New Charter shares that may be voted by proxy 7.00%          
A/N | Charter            
Investments in affiliates accounted for using the Equity Method            
Proxy voting period 5 years          
Trading days before proposed sale of A/N 2 days          
first | A/N | Charter            
Investments in affiliates accounted for using the Equity Method            
Maximum percentage of New Charter shares that may be voted by proxy 7.00%          
last | A/N | Charter            
Investments in affiliates accounted for using the Equity Method            
Maximum percentage of New Charter shares that may be voted by proxy 7.00%          
Bright House Transaction | Charter            
Investments in affiliates accounted for using the Equity Method            
Number of shares of common shares acquired | shares 3,700          
Purchase price of equity method investments $ 700.0          
Share Price | $ / shares $ 191.33          
Time Warner Cable Exchange | Charter            
Investments in affiliates accounted for using the Equity Method            
Number of shares of common shares acquired | shares 2,400          
Share exchange ratio   1        
Time Warner Cable Exchange | Liberty Interactive | Charter            
Investments in affiliates accounted for using the Equity Method            
Share exchange ratio   1