Segment Data - Summary of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation Of Revenue [Line Items]
Total net revenue	$ 1,269	$ 1,240	$ 2,553	$ 2,497
Broadcast [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	1,205	1,145	2,427	2,324
Other [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	75	96	147	176
Corporate & Eliminations (Unallocated) [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	(11)	(1)	(21)	(3)
Distribution [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	734	696	1,495	1,424
Distribution [Member] | Broadcast [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	719	684	1,466	1,397
Distribution [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	26	14	51	31
Distribution [Member] | Corporate & Eliminations (Unallocated) [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	(11)	(2)	(22)	(4)
Advertising [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	522	511	1,034	1,028
Advertising [Member] | Broadcast [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	476	451	942	907
Advertising [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	46	60	92	121
Other [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	13	33	24	45
Other [Member] | Broadcast [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	10	10	19	20
Other [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue	$ 3	22	4	24
Other [Member] | Corporate & Eliminations (Unallocated) [Member]
Disaggregation Of Revenue [Line Items]
Total net revenue		$ 1	$ 1	$ 1