v3.5.0.2
Significant Transactions (Preliminary Allocation of Purchase Price) (Details) - USD ($)
$ in Millions
Nov. 13, 2015
Jun. 30, 2016
Dec. 31, 2015
Goodwill   $ 33,792 $ 32,945
NBCUniversal Media LLC [Member]      
Goodwill   $ 21,143 $ 20,364
Universal Studios Japan [Member]      
Property and equipment $ 793    
Intangible assets 323    
Working capital (33)    
Long-term debt (3,271)    
Other noncurrent assets and liabilities 43    
Fair value of identifiable net assets acquired (2,145)    
Fair value of noncontrolling interests associated with net assets acquired (1,440)    
Goodwill 5,084    
Cash consideration transferred 1,499    
Universal Studios Japan [Member] | NBCUniversal Media LLC [Member]      
Property and equipment 793    
Intangible assets 323    
Working capital (33)    
Long-term debt (3,271)    
Other noncurrent assets and liabilities 43    
Fair value of identifiable net assets acquired (2,145)    
Fair value of noncontrolling interests associated with net assets acquired (1,440)    
Goodwill 5,084    
Cash consideration transferred $ 1,499