Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue (less agency commissions)	$ 547	$ 451	$ 1,091	$ 985
Operating expenses before depreciation, amortization and gain on disposal of assets, net:
Corporate and administrative	25	17	43	32
Depreciation	25	21	50	42
Amortization of intangible assets	27	26	53	52
Gain on disposal of assets, net	(1)	(7)	(5)	(13)
Operating expenses	439	386	882	796
Operating income	108	65	209	189
Other expense:
Miscellaneous expense, net	(7)	(2)	(6)	(3)
Interest expense	(47)	(46)	(95)	(98)
Income before income taxes	54	17	108	88
Income tax expense	15	6	30	24
Net income	39	11	78	64
Preferred stock dividends	13	13	26	26
Net income (loss) attributable to common stockholders	$ 26	$ (2)	$ 52	$ 38
Basic per share information:
Net income (loss) attributable to common stockholders (in dollars per share)	$ 0.27	$ (0.02)	$ 0.55	$ 0.39
Weighted-average shares outstanding (in shares)	95	97	94	98
Diluted per share information:
Net income (loss) attributable to common stockholders (in dollars per share)	$ 0.27	$ (0.02)	$ 0.55	$ 0.39
Weighted-average shares outstanding (in shares)	95	97	95	98
Dividends declared per common share (in dollars per share)	$ 0.08	$ 0	$ 0.16	$ 0
Broadcasting, Segment [Member]
Revenue (less agency commissions)	$ 537	$ 449	$ 1,067	$ 964
Operating expenses before depreciation, amortization and gain on disposal of assets, net:
Cost of goods and services sold	354	324	715	659
Operating expenses			805	733
Operating income			262	231
Other expense:
Interest expense			0	0
Production Companies, Segment [Member]
Revenue (less agency commissions)	10	2	24	21
Operating expenses before depreciation, amortization and gain on disposal of assets, net:
Cost of goods and services sold	$ 9	$ 5	26	24
Operating expenses			32	30
Operating income			(8)	(9)
Other expense:
Interest expense			$ 0	$ 0