Note 12 - Goodwill and Intangible Assets - Changes in Goodwill and Other Intangibles, Net (Details) - USD ($) $ in Millions		3 Months Ended
	Mar. 31, 2026	Mar. 31, 2026	Dec. 31, 2025
Goodwill	$ 2,651	$ 2,651	$ 2,642
Goodwill, Acquired During Period		9
Goodwill	2,651	2,651	2,642
Broadcast licenses	5,368	5,368	5,309
Broadcast licenses	5,368	5,368	5,309
Finite-lived intangible assets	128	128	157
Finite-lived intangible assets	(32)	(32)
Total intangible assets net of accumulated amortization	8,147	8,147	8,108
Acquisitions and adjustments, finite-lived intangible assets, including goodwill, total		71
Broadcast Licenses [Member]
Broadcast licenses	5,368	5,368	5,309
Finite-lived Intangible Assets Acquisition and Adjustment	59
Broadcast licenses	5,368	5,368	5,309
Finite-lived Intangible Assets [Member]
Finite-lived Intangible Assets Acquisition and Adjustment		3
Finite-lived intangible assets	128	128	$ 157
Finite-lived intangible assets	$ (32)	$ (32)