SEGMENT DATA - Segment Financial Information (Details) - USD ($) $ in Millions			3 Months Ended		6 Months Ended
		Mar. 01, 2022	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	[2]
Segment data
Assets	[1]		$ 6,201		$ 6,201		$ 6,704
Revenue			768	$ 837	1,541	$ 2,125
Depreciation of property and equipment and amortization of definite-lived intangibles and other assets			73	67	138	188
Amortization of sports programming rights					0	326
Amortization of program contract costs			19	21	41	46
Corporate general and administrative expenses			62	38	120	85
Gain on deconsolidation of subsidiary		$ (3,357)	0	0	0	(3,357)
(Gain) loss on asset dispositions and other, net of impairment			5	(4)	11	(9)
Operating income (loss)			(3)	107	18	3,573
Interest expense including amortization of debt discount and deferred financing costs			76	54	150	169
(Loss) income from equity method investments			(1)	3	30	15
Local Media
Segment data
Intersegment revenues				1	1	25
Local Media | Related Party
Segment data
Revenue			14	10	24	15
Tennis
Segment data
Intersegment revenues			1	1	2	2
Operating Segments | Local Media
Segment data
Assets			4,315		4,315
Revenue			699	760	1,404	1,514
Depreciation of property and equipment and amortization of definite-lived intangibles and other assets			67	61	126	122
Amortization of sports programming rights						0
Amortization of program contract costs			19	21	41	46
Corporate general and administrative expenses			46	34	78	77
Gain on deconsolidation of subsidiary						0
(Gain) loss on asset dispositions and other, net of impairment			(2)	(4)	(3)	(8)
Operating income (loss)			22	116	63	211
Interest expense including amortization of debt discount and deferred financing costs			76	54	150	99
(Loss) income from equity method investments			0	0	0	0
Operating Segments | Tennis
Segment data
Assets			309		309
Revenue			60	58	115	114
Depreciation of property and equipment and amortization of definite-lived intangibles and other assets			5	5	10	10
Amortization of sports programming rights						0
Amortization of program contract costs			0	0	0	0
Corporate general and administrative expenses			0	0	0	0
Gain on deconsolidation of subsidiary						0
(Gain) loss on asset dispositions and other, net of impairment			0	0	0	0
Operating income (loss)			3	0	21	24
Interest expense including amortization of debt discount and deferred financing costs			0	0	0	0
(Loss) income from equity method investments			0	0	0	0
Operating Segments | Local Sports
Segment data
Revenue						482
Depreciation of property and equipment and amortization of definite-lived intangibles and other assets						54
Amortization of sports programming rights						326
Amortization of program contract costs						0
Corporate general and administrative expenses						1
Gain on deconsolidation of subsidiary						0
(Gain) loss on asset dispositions and other, net of impairment						0
Operating income (loss)						(4)
Interest expense including amortization of debt discount and deferred financing costs						72
(Loss) income from equity method investments						10
Other & Corporate
Segment data
Assets			1,577		1,577
Revenue			14	27	31	57
Depreciation of property and equipment and amortization of definite-lived intangibles and other assets			1	2	3	4
Amortization of sports programming rights						0
Amortization of program contract costs			0	0	0	0
Corporate general and administrative expenses			16	4	42	7
Gain on deconsolidation of subsidiary						(3,357)
(Gain) loss on asset dispositions and other, net of impairment			7	0	14	(1)
Operating income (loss)			(28)	(9)	(66)	3,342
Interest expense including amortization of debt discount and deferred financing costs			0	3	0	6
(Loss) income from equity method investments			(1)	3	30	5
Intersegment revenues			2	3	3	10
Eliminations
Segment data
Assets			0		0
Revenue			(5)	(8)	(9)	(42)
Depreciation of property and equipment and amortization of definite-lived intangibles and other assets			0	(1)	(1)	(2)
Amortization of sports programming rights						0
Amortization of program contract costs			0	0	0	0
Corporate general and administrative expenses			0	0	0	0
Gain on deconsolidation of subsidiary						0
(Gain) loss on asset dispositions and other, net of impairment			0	0	0	0
Operating income (loss)			0	0	0	0
Interest expense including amortization of debt discount and deferred financing costs			0	(3)	0	(8)
(Loss) income from equity method investments			$ 0	$ 0	$ 0	$ 0

[1] Our consolidated total assets as of June 30, 2023 and December 31, 2022 include total assets of variable interest entities ("VIE") of $78 million and $115 million, respectively, which can only be used to settle the obligations of the VIEs. Our consolidated total liabilities as of June 30, 2023 and December 31, 2022 include total liabilities of VIEs of $16 million and $18 million, respectively, for which the creditors of the VIEs have no recourse to us. See Note 8. Variable Interest Entities.

[2] SBG's consolidated total assets as of June 30, 2023 and December 31, 2022 include total assets of variable interest entities ("VIE") of $78 million and $115 million, respectively, which can only be used to settle the obligations of the VIEs. SBG's consolidated total liabilities as of June 30, 2023 and December 31, 2022 include total liabilities of VIEs of $16 million and $18 million, respectively, for which the creditors of the VIEs have no recourse to SBG. See Note 7. Variable Interest Entities.