Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details)

v3.8.0.1
Stockholders' Equity (Details)
$ / shares in Units, $ in Millions
 12 Months Ended 60 Months Ended
Jan. 23, 2018
$ / shares
Nov. 30, 2016
USD ($)
Oct. 26, 2016
$ / shares
Jul. 23, 2014
shares
Dec. 31, 2017
USD ($)
Vote / shares
$ / shares
shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2015
USD ($)
shares
Dec. 31, 2017
USD ($)
shares
Preferred stock, shares issued | shares         0 0   0
Stock Repurchased and Retired During Period, Shares | shares         0 0 9,200,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value | $         $ 31 $ 24 $ 40  
Payments for Repurchase of Common Stock | $             $ 350  
Braves Group                
Stock reserved for future issuance | shares         1,400,000     1,400,000
Liberty Sirius XM Group                
Stock reserved for future issuance | shares         13,000,000     13,000,000
Common Class A                
Votes per share | Vote / shares         1      
Number of shares received in exchange for a share of Series B | shares         1      
Common Class B                
Votes per share | Vote / shares         10      
Common Class C                
Votes per share | Vote / shares         0      
Common Class C | Liberty Media Corporation                
Number of Shares Issued During The Period For Each Share of Series A and Series B Stock Held By Shareholders Prior To The Distribution | shares       2        
SIRIUS XM                
Stock Repurchased and Retired During Period, Shares | shares               2,500,000,000
Payments for Repurchase of Common Stock | $               $ 9,400
Common Stock, Dividends, Per Share, Declared | $ / shares $ 0.011       $ 0.044      
Payments of Dividends | $         $ 190      
Cash Dividends Paid to Parent Company | $         $ 130      
SIRIUS XM | Quarterly                
Common Stock, Dividends, Per Share, Declared | $ / shares     $ 0.01          
Payments of Dividends | $   $ 48            
Cash Dividends Paid to Parent Company | $   $ 32