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Programming and Other Inventory (Programming Inventory, Prior to Adoption) (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Acquired television program rights, including prepaid sports rights   $ 3,477
Acquired television library   99
Internally produced television programming:    
Released   3,627
In process and other   2,626
Film inventory:    
Released   502
Completed, not yet released   55
In process and other   1,037
Home entertainment and Publishing, primarily finished goods $ 103 105
Total programming and other inventory 11,414 11,528
Less current portion 1,431 2,876
Total noncurrent programming and other inventory $ 9,983 $ 8,652