Commitments and Contingencies (Streaming Content) (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Contractual Obligation [Line Items]
Total streaming content obligations	$ 19,490,082	$ 19,285,875
Current content liabilities	4,413,561	4,681,562
Non-current content liabilities	3,334,323	3,759,026
Unrecorded streaming obligations	11,800,000	10,800,000
Current Content Liabilities
Contractual Obligation [Line Items]
Current content liabilities	4,400,000	4,700,000
Non-current Content Liabilities
Contractual Obligation [Line Items]
Non-current content liabilities	$ 3,300,000	$ 3,800,000