Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets (Goodwill) (Details)

v3.8.0.1
Goodwill and Other Intangible Assets (Goodwill) (Details) - USD ($)
$ in Millions
9 Months Ended
Apr. 18, 2017
Sep. 30, 2017
Goodwill [Roll Forward]    
Goodwill, Beginning Balance   $ 14,345
Acquisitions   4,050
Goodwill, Ending Balance   18,395
Business acquisition    
Purchase Price   1,647
SIRIUS XM    
Goodwill [Roll Forward]    
Goodwill, Beginning Balance   14,165
Acquisitions   82
Goodwill, Ending Balance   14,247
Formula 1    
Goodwill [Roll Forward]    
Acquisitions   3,968
Goodwill, Ending Balance   3,968
Corporate And Other    
Goodwill [Roll Forward]    
Goodwill, Beginning Balance   180
Goodwill, Ending Balance   $ 180
Automatic Labs Inc.    
Business acquisition    
Purchase Price $ 108