Note 2 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue	$ 451	$ 508	$ 985	$ 1,026
Sales Channel, Directly to Consumer [Member]
Revenue	306	307	633	640
Sales Channel, Through Intermediary [Member]
Revenue	145	201	352	386
Local Advertising [Member]
Revenue	162	226	361	437
National Advertising [Member]
Revenue	36	56	87	106
Political Advertising [Member]
Revenue	21	5	57	8
Advertising [Member]
Revenue	219	287	505	551
Retransmission Consent [Member]
Revenue	220	201	433	405
Production Companies [Member]
Revenue	2	9	21	46
Service, Other [Member]
Revenue	$ 10	$ 11	$ 26	$ 24

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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