Note 13 - Goodwill and Intangible Assets - Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill, Gross		$ 711	$ 710
Goodwill	$ 1,446	612	611
Other intangible assets, net	460	53	74
Intangible Assets Gross (Including Goodwill)	5,744	2,344
Accumulated Amortization Intangible Assets	(265)	(149)
Intangible Assets, Net (Including Goodwill)	5,479	2,195	$ 2,216
Network Affiliate [Member]
Finite-Lived Intangible Assets, Gross	56	6
Finite-Lived Intangible Assets, Accumulated Amortization	(17)	(6)
Other intangible assets, net	39	0
Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Gross	615	143
Finite-Lived Intangible Assets, Accumulated Amortization	(194)	(90)
Other intangible assets, net	421	53
Intangible Assets Subject to Amortization [Member]
Finite-Lived Intangible Assets, Gross	671	149
Finite-Lived Intangible Assets, Accumulated Amortization	(211)	(96)
Other intangible assets, net	460	53
Broadcast Licenses [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill), Gross	3,627	1,583
Indefinite-Lived Intangible Assets (Excluding Goodwill), Accumulated Amortization	(54)	(53)
Indefinite-Lived Intangible Assets (Excluding Goodwill)	3,573	1,530
Goodwill Not Amortizable [Member]
Goodwill, Gross	1,446	612
Goodwill, Accumulated Amortization	0	0
Goodwill	1,446	612
Intangible Assets Not Subject to Amortization [Member]
Goodwill and Indefinite-Lived Intangible Assets, Gross	5,073	2,195
Goodwill and Indefinite-lived Intangible Assets, Accumulated Amortization	(54)	(53)
Goodwill and Indefinite-Lived Assets, Net	$ 5,019	$ 2,142