Note 3 - Acquisitions and Divestitures - Acquisitions (Details) - USD ($) $ in Millions					12 Months Ended
	Apr. 01, 2022	Nov. 02, 2020	Sep. 01, 2020	Jul. 31, 2020	Dec. 31, 2020	Dec. 31, 2022	Dec. 31, 2021
Goodwill					$ 1,460	$ 2,663	$ 2,649
Goodwill					1,460	2,663	2,649
Atlanta Telemundo Transaction [Member]
Accounts receivable, net	$ 1
Property and equipment	1
Goodwill	10
Payments to Acquire Businesses, Gross	31
Accounts receivable, net	1
Goodwill	10
Atlanta Telemundo Transaction [Member] | Broadcast Licenses [Member]
Intangible assets	1
Atlanta Telemundo Transaction [Member] | Network Affiliation [Member]
Intangible assets	14
Atlanta Telemundo Transaction [Member] | Other Intangible Assets [Member]
Intangible assets	$ 4
Meredith Acquisition [Member]
Accounts receivable, net						146
Goodwill						1,016
Cash						1
Accounts receivable, net						146
Other current assets						15
Property and equipment						235
Operating lease right of use asset						15
Goodwill						1,016
Broadcast licenses						1,516
Other intangible assets						455
Other non-current assets						3
Other current liabilities						(104)
Deferred income taxes						(477)
Operating lease liabilities						(15)
Other non-current liabilities						(3)
Total						2,803
Other current liabilities						104
Quincy Acquisition [Member]
Accounts receivable, net						23
Goodwill						190
Cash						4
Accounts receivable, net						23
Other current assets						5
Property and equipment						74
Operating lease right of use asset						1
Goodwill						190
Broadcast licenses						245
Other intangible assets						85
Other non-current assets						0
Other current liabilities						(7)
Deferred income taxes						(66)
Operating lease liabilities						(1)
Other non-current liabilities						0
Total						553	$ 553
Other current liabilities						7
Third Rail Acquisition [Member]
Accounts receivable, net						0
Goodwill						4
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 non-current assets						0
Other current liabilities						(1)
Deferred income taxes						0
Operating lease liabilities						0
Other non-current liabilities						0
Total						27
Other current liabilities						1
The2021 Acquisitions [Member]
Accounts receivable, net						169
Goodwill						1,210
Cash						5
Accounts receivable, net						169
Other current assets						20
Property and equipment						333
Operating lease right of use asset						16
Goodwill						1,210
Broadcast licenses						1,761
Other intangible assets						540
Other non-current assets						3
Other current liabilities						(112)
Deferred income taxes						(543)
Operating lease liabilities						(16)
Other non-current liabilities						(3)
Total						3,383
Other current liabilities						$ 112
Lubbock Transactions, Acquisition [Member]
Goodwill					6
Property and equipment					6
Operating lease right of use asset					1
Goodwill					6
Other intangible assets					7
Other current liabilities					(1)
Total					24
Accounts receivable and other current assets					0
Broadcast licenses					5
Other current liabilities					1
Alaska Transactions [Member]
Goodwill					2
Payments to Acquire Businesses, Gross				$ 19
Property and equipment					5
Operating lease right of use asset					0
Goodwill					2
Other intangible assets					9
Other current liabilities					0
Total					19
Accounts receivable and other current assets					1
Broadcast licenses					2
Other current liabilities					(0)
Columbus Acquisition [Member]
Goodwill					1
Payments to Acquire Businesses, Gross			$ 22
Property and equipment					2
Operating lease right of use asset					0
Goodwill					1
Other intangible assets					19
Other current liabilities					0
Total					22
Accounts receivable and other current assets					0
Broadcast licenses					0
Other current liabilities					(0)
Sioux Falls Acquisition [Member]
Goodwill					11
Payments to Acquire Businesses, Gross		$ 22
Property and equipment					0
Operating lease right of use asset					0
Goodwill					11
Other intangible assets					11
Other current liabilities					0
Total					22
Accounts receivable and other current assets					0
Broadcast licenses					0
Other current liabilities					(0)
The 2020 Acquisitions [Member]
Goodwill					20
Payments to Acquire Businesses, Gross					24
Property and equipment					13
Operating lease right of use asset					1
Goodwill					20
Other intangible assets					46
Other current liabilities					(1)
Total					87
Accounts receivable and other current assets					1
Broadcast licenses					7
Other current liabilities					$ 1