SEGMENT DATA - Segment Financial Information (Details) - USD ($) $ in Millions			3 Months Ended								12 Months Ended
		Mar. 01, 2022	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment data
Goodwill			$ 2,088				$ 2,088				$ 2,088	$ 2,088	$ 2,092
Assets	[1]		6,704				12,541				6,704	12,541
Revenue			960	$ 843	$ 837	$ 1,288	1,476	$ 1,535	$ 1,612	$ 1,511	3,928	6,134	5,943
Depreciation of property and equipment and amortization of definite-lived intangible assets and other assets											321	591	674
Amortization of sports programming rights											326	2,350	1,078
Amortization of program contract costs											90	93	86
Corporate general and administrative expenses											160	170	148
Gain on deconsolidation of subsidiary		$ (3,357)									(3,357)	0	0
(Gain) loss on asset dispositions and other, net of impairment											(64)	(71)	(115)
Impairment of goodwill and definite-lived intangible assets											0	0	4,264
Operating income (loss)			253	$ 154	$ 107	$ 3,466	165	$ 73	$ (178)	$ 35	3,980	95	(2,772)
Interest expense including amortization of debt discount and deferred financing costs											296	618	656
Income (loss) from equity method investments											56	45	(36)
Capital expenditures											105	80	157
Gain (loss) recognized on sale											4	24	90
Broadcast
Segment data
Goodwill			2,016				2,016				2,016	2,016	2,017
Intersegment revenues											26	111	100
Revenue from related parties											39
Operating segments | Broadcast
Segment data
Goodwill			2,016				2,016				2,016	2,016
Assets			4,436				4,793				4,436	4,793
Revenue											3,071	2,757	2,922
Depreciation of property and equipment and amortization of definite-lived intangible assets and other assets											240	247	239
Amortization of sports programming rights											0	0	0
Amortization of program contract costs											72	76	83
Corporate general and administrative expenses											117	147	119
Gain on deconsolidation of subsidiary											0
(Gain) loss on asset dispositions and other, net of impairment											(15)	(24)	(118)
Impairment of goodwill and definite-lived intangible assets													0
Operating income (loss)											607	374	789
Interest expense including amortization of debt discount and deferred financing costs											3	4	5
Income (loss) from equity method investments											0	0	0
Capital expenditures											96	52	101
Operating segments | Local sports
Segment data
Goodwill			0				0				0	0
Assets			0				5,769				0	5,769
Revenue											482	3,056	2,686
Depreciation of property and equipment and amortization of definite-lived intangible assets and other assets											54	316	410
Amortization of sports programming rights											326	2,350	1,078
Amortization of program contract costs											0	0	0
Corporate general and administrative expenses											1	10	10
Gain on deconsolidation of subsidiary											0
(Gain) loss on asset dispositions and other, net of impairment											0	(43)	0
Impairment of goodwill and definite-lived intangible assets													4,264
Operating income (loss)											(4)	(317)	(3,602)
Interest expense including amortization of debt discount and deferred financing costs											72	436	460
Income (loss) from equity method investments											10	49	6
Capital expenditures											2	16	24
Operating segments | Other & Corporate
Segment data
Goodwill			72				72				72	72
Assets			2,268				2,009				2,268	2,009
Revenue											473	481	451
Depreciation of property and equipment and amortization of definite-lived intangible assets and other assets											30	31	27
Amortization of sports programming rights											0	0	0
Amortization of program contract costs											18	17	3
Corporate general and administrative expenses											42	13	19
Gain on deconsolidation of subsidiary											(3,357)
(Gain) loss on asset dispositions and other, net of impairment											(49)	(4)	3
Impairment of goodwill and definite-lived intangible assets													0
Operating income (loss)											3,377	39	47
Interest expense including amortization of debt discount and deferred financing costs											235	192	203
Income (loss) from equity method investments											46	(4)	(42)
Capital expenditures											7	12	32
Eliminations
Segment data
Goodwill			0				0				0	0
Assets			$ 0				$ (30)				0	(30)
Revenue											(98)	(160)	(116)
Depreciation of property and equipment and amortization of definite-lived intangible assets and other assets											(3)	(3)	(2)
Amortization of sports programming rights											0	0	0
Amortization of program contract costs											0	0	0
Corporate general and administrative expenses											0	0	0
Gain on deconsolidation of subsidiary											0
(Gain) loss on asset dispositions and other, net of impairment											0	0	0
Impairment of goodwill and definite-lived intangible assets													0
Operating income (loss)											0	(1)	(6)
Interest expense including amortization of debt discount and deferred financing costs											(14)	(14)	(12)
Income (loss) from equity method investments											0	0	0
Capital expenditures											0	0	$ 0
Corporate And Reconciling Items
Segment data
Intersegment revenues											$ 58
Broadcast Incentive Auction and C-Band Spectrum
Segment data
Gain (loss) recognized on sale												$ 67

[1] Our consolidated total assets as of December 31, 2022 and 2021 include total assets of VIEs of $115 million and $217 million, respectively, which can only be used to settle the obligations of the VIEs. Our consolidated total liabilities as of December 31, 2022 and 2021 include total liabilities of the VIEs of $18 million and $62 million, respectively, for which the creditors of the VIEs have no recourse to us. See Note 14. Variable Interest Entities.