Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net Property and Equipment, Net (Details)

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Property and Equipment, Net Property and Equipment, Net (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment, Net, by Type [Abstract]    
Property and equipment, gross $ 2,446 $ 2,344
Less: accumulated depreciation (1,281) (1,174)
Property and equipment, net $ 1,165 1,170
Property, Plant and Equipment, Useful Life 20 years  
Property and equipment, disposals $ 56 40
Land    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property and equipment, gross 128 108
Buildings and improvements    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property and equipment, gross 1,174 1,166
Furniture and other equipment    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property and equipment, gross 543 546
Broadcast equipment    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property and equipment, gross 179 138
Computer equipment    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property and equipment, gross 186 174
Transponders and terrestrial transmitter (note 9)    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property and equipment, gross 178 170
Projects in progress    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property and equipment, gross $ 58 $ 42
Minimum | Buildings and improvements    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property, Plant and Equipment, Useful Life 8 years  
Minimum | Furniture and other equipment    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property, Plant and Equipment, Useful Life 2 years  
Minimum | Broadcast equipment    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property, Plant and Equipment, Useful Life 2 years  
Minimum | Computer equipment    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property, Plant and Equipment, Useful Life 2 years  
Minimum | Transponders and terrestrial transmitter (note 9)    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property, Plant and Equipment, Useful Life 8 years  
Maximum | Buildings and improvements    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property, Plant and Equipment, Useful Life 20 years  
Maximum | Furniture and other equipment    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property, Plant and Equipment, Useful Life 10 years  
Maximum | Broadcast equipment    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property, Plant and Equipment, Useful Life 6 years  
Maximum | Computer equipment    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property, Plant and Equipment, Useful Life 5 years  
Maximum | Transponders and terrestrial transmitter (note 9)    
Property, Plant and Equipment, Net, by Type [Abstract]    
Property, Plant and Equipment, Useful Life 15 years