Note 14 - Segment Information - Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	May 01, 2019	Dec. 31, 2018
Revenue (less agency commissions)	$ 517	$ 279	$ 1,543	$ 756
Operating expenses before depreciation, amortization and (gain) loss on disposal of assets, net:			1,126	467
Depreciation and amortization			146	57
(Gain) loss on disposal of assets, net	14	3	27	6
Operating expenses	378	171	1,245	518
Operating income	139	108	298	238
Interest expense	57	25	173	74
Capital expenditures (excluding business combinations)			73	35
Goodwill	1,449		1,449		$ 837	$ 612
Total Assets	7,104		7,104			4,213
Corporate, Non-Segment [Member]
Revenue (less agency commissions)			0	0
Operating expenses before depreciation, amortization and (gain) loss on disposal of assets, net:			83	30
Depreciation and amortization			2	1
(Gain) loss on disposal of assets, net			(0)	(0)
Operating expenses			85	31
Operating income			(85)	(31)
Interest expense			173	74
Capital expenditures (excluding business combinations)			4	0
Goodwill	0		0			0
Total Assets	56		56			971
Broadcasting, Segment [Member]
Revenue (less agency commissions)	501	279	1,481	756
Operating expenses before depreciation, amortization and (gain) loss on disposal of assets, net:			986	437
Depreciation and amortization			135	56
(Gain) loss on disposal of assets, net			27	6
Operating expenses			1,094	487
Operating income			387	269
Interest expense			0	0
Capital expenditures (excluding business combinations)			69	35
Goodwill	1,409		1,409			612
Total Assets	6,906		6,906			3,242
Production Companies, Segment [Member]
Revenue (less agency commissions)	16	$ 0	62	0
Operating expenses before depreciation, amortization and (gain) loss on disposal of assets, net:			57	0
Depreciation and amortization			9	0
(Gain) loss on disposal of assets, net			(0)	(0)
Operating expenses			66	0
Operating income			(4)	0
Interest expense			0	0
Capital expenditures (excluding business combinations)			0	$ 0
Goodwill	40		40			0
Total Assets	$ 142		$ 142			$ 0