Film and Television Costs (Schedule) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Film Costs:
Released, less amortization	$ 1,750	$ 1,275
Completed, not released	50	226
In production and in development	1,310	907
Total film costs	3,110	2,408
Television Costs:
Released, less amortization	1,953	1,573
In production and in development	853	737
Total television costs	2,806	2,310
Programming rights, less amortization	2,586	2,350
Total film costs, television costs and programming rights	8,502	7,068
Less: Current portion of programming rights	1,250	1,213
Film and television costs	7,252	5,855
NBCUniversal Media LLC [Member]
Film Costs:
Released, less amortization	1,750	1,275
Completed, not released	50	226
In production and in development	1,310	907
Total film costs	3,110	2,408
Television Costs:
Released, less amortization	1,953	1,573
In production and in development	853	737
Total television costs	2,806	2,310
Programming rights, less amortization	2,570	2,329
Total film costs, television costs and programming rights	8,486	7,047
Less: Current portion of programming rights	1,241	1,200
Film and television costs	$ 7,245	$ 5,847