Note 13 - Segment Information - Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Revenue	$ 950	$ 803	$ 2,599	$ 2,417
Operating expenses before depreciation, amortization, impairment and loss on disposal of assets, net:			1,856	1,831
Depreciation and amortization			202	253
Loss on disposal of assets, net	16	(6)	15	20
Operating expenses	700	719	2,073	2,147
Operating income (loss)	250	84	526	270
Interest expense	130	111	363	324
Capital expenditures (excluding business combinations)			103	288
Goodwill	2,642	2,643	2,642	2,643	$ 2,643
Total assets	10,631	10,640	10,631	10,640	$ 10,640
Impairment of goodwill and other intangible assets	0	43	0	43
Broadcasting, Segment [Member]
Revenue	924	783	2,531	2,363
Production Companies, Segment [Member]
Revenue	26	20	68	54
Operating Segments [Member] | Broadcasting, Segment [Member]
Revenue			2,531	2,363
Operating expenses before depreciation, amortization, impairment and loss on disposal of assets, net:			1,719	1,664
Depreciation and amortization			186	241
Loss on disposal of assets, net			15	18
Operating expenses			1,920	1,923
Operating income (loss)			611	440
Interest expense			0	0
Capital expenditures (excluding business combinations)			46	83
Goodwill	2,614	2,615	2,614	2,615
Total assets	9,840	9,897	9,840	9,897
Impairment of goodwill and other intangible assets				0
Operating Segments [Member] | Production Companies, Segment [Member]
Revenue			68	54
Operating expenses before depreciation, amortization, impairment and loss on disposal of assets, net:			57	88
Depreciation and amortization			14	9
Loss on disposal of assets, net			0	2
Operating expenses			71	142
Operating income (loss)			(3)	(88)
Interest expense			0	0
Capital expenditures (excluding business combinations)			57	201
Goodwill	28	28	28	28
Total assets	664	658	664	658
Impairment of goodwill and other intangible assets				43
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]
Revenue			0	0
Operating expenses before depreciation, amortization, impairment and loss on disposal of assets, net:			80	79
Depreciation and amortization			2	3
Loss on disposal of assets, net			0	0
Operating expenses			82	82
Operating income (loss)			(82)	(82)
Interest expense			363	324
Capital expenditures (excluding business combinations)			0	4
Goodwill	0	0	0	0
Total assets	$ 127	$ 85	$ 127	85
Impairment of goodwill and other intangible assets				$ 0