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Film and Television Costs (Film and Television Costs)(Details) - USD ($)
$ in Millions
Sep. 30, 2015
Dec. 31, 2014
Film Costs    
Released, less amortization $ 1,365 $ 1,371
Completed, not released 208 71
In production and in development 768 1,189
Total film costs 2,341 2,631
Television Costs    
Released, less amortization 1,505 1,273
In production and in development 699 505
Total television costs 2,204 1,778
Programming rights, less amortization 2,297 2,157
Total film costs, television costs and programming rights 6,842 6,566
Less: Current portion of programming rights 1,130 839
Film and television costs 5,712 5,727
NBCUniversal Media, LLC [Member]    
Film Costs    
Released, less amortization 1,365 1,371
Completed, not released 208 71
In production and in development 768 1,189
Total film costs 2,341 2,631
Television Costs    
Released, less amortization 1,505 1,273
In production and in development 699 505
Total television costs 2,204 1,778
Programming rights, less amortization 2,279 2,130
Total film costs, television costs and programming rights 6,824 6,539
Less: Current portion of programming rights 1,116 825
Film and television costs $ 5,708 $ 5,714