Note 3 - Acquisitions and Divestitures - Acquisitions (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Goodwill	$ 1,633	$ 1,460
Quincy Acquisition [Member]
Cash	4
Accounts receivable, net	23
Other current assets	5
Property and equipment	73
Operating lease right of use asset	1
Goodwill	184
Broadcast licenses	245
Other intangible assets	86
Other current liabilities	(7)
Deferred income taxes	(66)
Operating lease liabilities	(1)
Total	547
Third Rail Acquisition [Member]
Cash	0
Accounts receivable, net	0
Other current assets	0
Property and equipment	24
Operating lease right of use asset	0
Goodwill	4
Broadcast licenses	0
Other intangible assets	0
Other current liabilities	(1)
Deferred income taxes	0
Operating lease liabilities	0
Total	27
The2021 Acquisitions [Member]
Cash	4
Accounts receivable, net	23
Other current assets	5
Property and equipment	97
Operating lease right of use asset	1
Goodwill	188
Broadcast licenses	245
Other intangible assets	86
Other current liabilities	(8)
Deferred income taxes	(66)
Operating lease liabilities	(1)
Total	$ 574
Lubbock Transactions, Acquisition [Member]
Property and equipment		6
Operating lease right of use asset		1
Goodwill		6
Other intangible assets		7
Total		24
Broadcast licenses		5
Other liabilities		$ (1)