NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition, Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,288	$ 1,511
Distribution revenue
Disaggregation of Revenue [Line Items]
Total revenues	873	1,109
Advertising revenue
Disaggregation of Revenue [Line Items]
Total revenues	371	371
Other media, non-media, and intercompany revenues
Disaggregation of Revenue [Line Items]
Total revenues	44	31
Operating Segments | Broadcast
Disaggregation of Revenue [Line Items]
Total revenues	721	665
Operating Segments | Local sports
Disaggregation of Revenue [Line Items]
Total revenues	482	768
Operating Segments | Other
Disaggregation of Revenue [Line Items]
Total revenues	134	108
Operating Segments | Distribution revenue | Broadcast
Disaggregation of Revenue [Line Items]
Total revenues	392	361
Operating Segments | Distribution revenue | Local sports
Disaggregation of Revenue [Line Items]
Total revenues	433	698
Operating Segments | Distribution revenue | Other
Disaggregation of Revenue [Line Items]
Total revenues	48	50
Operating Segments | Advertising revenue | Broadcast
Disaggregation of Revenue [Line Items]
Total revenues	282	267
Operating Segments | Advertising revenue | Local sports
Disaggregation of Revenue [Line Items]
Total revenues	44	65
Operating Segments | Advertising revenue | Other
Disaggregation of Revenue [Line Items]
Total revenues	68	40
Operating Segments | Other media, non-media, and intercompany revenues | Broadcast
Disaggregation of Revenue [Line Items]
Total revenues	47	37
Operating Segments | Other media, non-media, and intercompany revenues | Local sports
Disaggregation of Revenue [Line Items]
Total revenues	5	5
Operating Segments | Other media, non-media, and intercompany revenues | Other
Disaggregation of Revenue [Line Items]
Total revenues	18	18
Eliminations
Disaggregation of Revenue [Line Items]
Total revenues	(49)	(30)
Eliminations | Distribution revenue
Disaggregation of Revenue [Line Items]
Total revenues	0	0
Eliminations | Advertising revenue
Disaggregation of Revenue [Line Items]
Total revenues	(23)	(1)
Eliminations | Other media, non-media, and intercompany revenues
Disaggregation of Revenue [Line Items]
Total revenues	$ (26)	$ (29)