Note 2 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue	$ 803	$ 909	$ 2,417	$ 2,604
Sales Channel, Directly to Consumer [Member]
Revenue	547	528	1,664	1,616
Sales Channel, Through Intermediary [Member]
Revenue	256	381	753	988
Core Advertising [Member]
Revenue	363	359	1,099	1,090
Political Advertising [Member]
Revenue	26	144	46	260
Advertising [Member]
Revenue	389	503	1,145	1,350
Retransmission Consent [Member]
Revenue	378	368	1,167	1,143
Production Companies [Member]
Revenue	20	20	54	56
Service, Other [Member]
Revenue	$ 16	$ 18	$ 51	$ 55