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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Note 3 - Acquisitions and Divestitures (Details Textual) - USD ($) $ in Millions											3 Months Ended	12 Months Ended
	Oct. 01, 2019	Sep. 25, 2019	May 01, 2019	Jan. 02, 2019	Aug. 01, 2017	Jun. 01, 2017	May 01, 2017	Jan. 17, 2017	Jan. 13, 2017	Jun. 01, 2016	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-lived Intangible Assets Acquired												$ 522	$ 0
Goodwill, Ending Balance											$ 612	1,446	612	$ 611
Proceeds from Divestiture of Businesses												253	9	0
Business Combination, Acquisition Related Costs												79	$ 11
Raycom [Member]
Payments to Acquire Businesses, Gross				$ 2,840
Business Combination, Consideration Transferred, Total				3,660								3,677
Goodwill, Ending Balance				829
Business Acquisition, Goodwill, Expected Tax Deductible Amount				$ 150
Raycom [Member] \| Common Stock [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares				11,500,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				$ 170
Raycom [Member] \| Preferred Stock [Member] \| Series A Perpetual Preferred Stock [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares				650,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				$ 650
KYOU-TV and WUPV-TV [Member]
Payments to Acquire Businesses, Gross				17
Business Combination, Consideration Transferred, Total												17
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Gross Contractual Receivables above Their Fair Value				2
WWNY-TV, WNYF-CD, and KEYC-TV [Member]
Payments to Acquire Businesses, Gross			$ 48
Goodwill, Ending Balance			$ 3
Sioux Falls Acquisition [Member]
Payments to Acquire Businesses, Gross		$ 33
Goodwill, Ending Balance	$ 2	$ 2
Charlottesville Acquisition [Member]
Payments to Acquire Businesses, Gross	13
Goodwill, Ending Balance	0
Acquisitions 2019 [Member]
Goodwill, Ending Balance												834
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual												1,100
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual												$ 198
Acquisitions 2019 [Member] \| Retransmission Agreements [Member]
Finite-lived Intangible Assets Acquired				$ 322
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life				4 years 1 month 6 days
Acquisitions 2019 [Member] \| Off-Market Favorable Lease [Member]
Finite-lived Intangible Assets Acquired				$ 98
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life				7 years 8 months 12 days
Acquisitions 2019 [Member] \| Network Affiliation Agreements [Member]
Finite-lived Intangible Assets Acquired				$ 50
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life				3 years 8 months 12 days
Acquisitions 2019 [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life				3 years
Acquisitions 2019 [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life				40 years
Fairbanks Acquistion [Member]
Payments to Acquire Businesses, Gross									$ 8
Goodwill, Ending Balance														0
Green Bay Acquisition and Davenport Acquisition [Member]
Business Combination, Consideration Transferred, Total								$ 270
Clarksburg Acquisition [Member]
Payments to Acquire Businesses, Gross										$ 16
Business Combination, Consideration Transferred, Total							$ 26
Goodwill, Ending Balance														3
Bangor Acquisition and Gainesville Acquisition [Member]
Business Combination, Consideration Transferred, Total							$ 85
Burlington and Plattsburg Acquisition [Member]
Payments to Acquire Businesses, Gross					$ 6	$ 23
Business Combination, Consideration Transferred, Total					$ 29
2017 Acquisitions [Member]
Goodwill, Ending Balance														128
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual														80
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual														34
Business Combination, Acquisition Related Costs														$ 1
2017 Acquisitions [Member] \| Retransmission Agreements [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life														5 years 1 month 6 days
Finite-Lived Intangible Assets, Gross, Total														$ 28
2017 Acquisitions [Member] \| Advertising Relationships [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life														10 years 8 months 12 days
Finite-Lived Intangible Assets, Gross, Total														$ 5
2017 Acquisitions [Member] \| Income Leases [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life														11 years 10 months 24 days
Finite-Lived Intangible Assets, Gross, Total														$ 3
2017 Acquisitions [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life														3 years
2017 Acquisitions [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life														40 years
Stations Acquired from Raycom [Member]
Gain (Loss) on Disposition of Business				$ (234)
WCAV-TV and WVAW-TV [Member]
Gain (Loss) on Disposition of Business	$ 19
WSWG-TV [Member]
Gain (Loss) on Disposition of Business											5
Proceeds from Divestiture of Businesses											$ 9