Note 12 - Goodwill and Intangible Assets - Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Goodwill, Gross	$ 1,533	$ 711
Goodwill	1,434	612
Other intangible assets, net	517	53
Intangible Assets Gross (Including Goodwill)	5,663	2,344
Accumulated Amortization Intangible Assets	(178)	(149)
Intangible Assets, Net (Including Goodwill)	5,485	2,195
Network Affiliate [Member]
Finite-Lived Intangible Assets, Gross	54	6
Finite-Lived Intangible Assets, Accumulated Amortization	(9)	(6)
Other intangible assets, net	45
Finite-Lived Intangible Assets, Accumulated Amortization	9	6
Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Gross	588	143
Finite-Lived Intangible Assets, Accumulated Amortization	116	90
Other intangible assets, net	472	53
Finite-Lived Intangible Assets, Accumulated Amortization	(116)	(90)
Intangible Assets Subject to Amortization [Member]
Finite-Lived Intangible Assets, Gross	642	149
Finite-Lived Intangible Assets, Accumulated Amortization	(125)	(96)
Other intangible assets, net	517	53
Finite-Lived Intangible Assets, Accumulated Amortization	125	96
Broadcast Licenses [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill), Gross	3,587	1,583
Indefinite-Lived Intangible Assets (Excluding Goodwill), Accumulated Amortization	(53)	(53)
Indefinite-Lived Intangible Assets (Excluding Goodwill)	3,534	1,530
Goodwill Not Amortizable [Member]
Goodwill, Gross	1,434	612
Goodwill	1,434	612
Intangible Assets Not Subject to Amortization [Member]
Goodwill and Indefinite-Lived Intangible Assets, Gross	5,021	2,195
Goodwill and Indefinite-lived Intangible Assets, Accumulated Amortization	(53)	(53)
Goodwill and Indefinite-Lived Assets, Net	$ 4,968	$ 2,142