Note 2 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue	$ 2,413	$ 2,381	$ 2,122
Sales Channel, Directly to Consumer [Member]
Revenue	1,579	1,302	1,270
Sales Channel, Through Intermediary [Member]
Revenue	834	1,079	852
Local Advertising [Member]
Revenue	934	771	898
National Advertising [Member]
Revenue	256	198	229
Political Advertising [Member]
Revenue	44	430	68
Advertising [Member]
Revenue	1,234	1,399	1,195
Retransmission Consent [Member]
Revenue	1,049	867	796
Production Companies [Member]
Revenue	73	61	87
Service, Other [Member]
Revenue	$ 57	$ 54	$ 44

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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