NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition, Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 837	$ 1,612	$ 2,125	$ 3,123
Distribution revenue
Disaggregation of Revenue [Line Items]
Total revenues	430	1,078	1,303	2,187
Advertising revenue
Disaggregation of Revenue [Line Items]
Total revenues	366	491	737	862
Other media, non-media, and intercompany revenues
Disaggregation of Revenue [Line Items]
Total revenues	41	43	85	74
Operating Segments | Broadcast
Disaggregation of Revenue [Line Items]
Total revenues	732	687	1,453	1,352
Operating Segments | Local sports
Disaggregation of Revenue [Line Items]
Total revenues	0	838	482	1,606
Operating Segments | Other
Disaggregation of Revenue [Line Items]
Total revenues	131	120	265	228
Operating Segments | Distribution revenue | Broadcast
Disaggregation of Revenue [Line Items]
Total revenues	385	363	777	724
Operating Segments | Distribution revenue | Local sports
Disaggregation of Revenue [Line Items]
Total revenues	0	666	433	1,364
Operating Segments | Distribution revenue | Other
Disaggregation of Revenue [Line Items]
Total revenues	45	49	93	99
Operating Segments | Advertising revenue | Broadcast
Disaggregation of Revenue [Line Items]
Total revenues	316	280	598	547
Operating Segments | Advertising revenue | Local sports
Disaggregation of Revenue [Line Items]
Total revenues	0	162	44	227
Operating Segments | Advertising revenue | Other
Disaggregation of Revenue [Line Items]
Total revenues	70	54	138	94
Operating Segments | Other media, non-media, and intercompany revenues | Broadcast
Disaggregation of Revenue [Line Items]
Total revenues	31	44	78	81
Operating Segments | Other media, non-media, and intercompany revenues | Local sports
Disaggregation of Revenue [Line Items]
Total revenues	0	10	5	15
Operating Segments | Other media, non-media, and intercompany revenues | Other
Disaggregation of Revenue [Line Items]
Total revenues	16	17	34	35
Eliminations
Disaggregation of Revenue [Line Items]
Total revenues	(26)	(33)	(75)	(63)
Eliminations | Distribution revenue
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Eliminations | Advertising revenue
Disaggregation of Revenue [Line Items]
Total revenues	(20)	(5)	(43)	(6)
Eliminations | Other media, non-media, and intercompany revenues
Disaggregation of Revenue [Line Items]
Total revenues	$ (6)	$ (28)	$ (32)	$ (57)