Note 2 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue	$ 517	$ 279	$ 1,543	$ 756
Sales Channel, Directly to Consumer [Member]
Revenue	306	139	946	407
Sales Channel, Through Intermediary [Member]
Revenue	211	140	597	349
Local Advertising [Member]
Revenue	218	106	655	325
National Advertising [Member]
Revenue	56	29	162	84
Political Advertising [Member]
Revenue	22	48	30	72
Advertising [Member]
Revenue	296	183	847	481
Retransmission Consent [Member]
Revenue	196	92	601	262
Production Companies [Member]
Revenue	16	0	62	0
Service, Other [Member]
Revenue	$ 9	$ 4	$ 33	$ 13