Note 3 - Acquisitions and Divestitures - Unaudited Pro Forma Results (Details) - Raycom [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenue (less agency commissions)	$ 518	$ 484
Net (loss) income	(2)	6
Net (loss) income attributable to common stockholders	$ (15)	$ (7)
Basic net (loss) income per common share (in dollars per share)	$ (0.15)	$ (0.08)
Diluted net(loss) income per common share (in dollars per share)	$ (0.15)	$ (0.08)