Note 11 - Goodwill and Intangible Assets - Changes in Goodwill and Other Intangible Assets, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 30, 2022
Broadcast licenses	$ 5,320		$ 5,320		$ 5,331
Goodwill	2,643		2,643		2,663	$ 2,663
Goodwill, acquisitions and adjustments			4
Finite-lived intangible assets	462		462		636
Amortization			(147)	$ (156)
Total intangible assets net of accumulated amortization	8,425		8,425		8,630
Total intangible assets net of accumulated amortization			(15)
Impairment of goodwill and other intangible assets	43	$ 0	43	$ 0
Finite-Lived Intangible Assets [Member]
Acquisition and adjustments			0
Acquisition and adjustments			0
Amortization			(147)
Finite-lived Intangible Assets [Member]
Finite-lived intangible assets			27
Broadcast Licenses [Member]
Broadcast licenses	$ 5,320		5,320		$ 5,331
Acquisition and adjustments			(11)
Goodwill			16
Acquisition and adjustments			$ 11