DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Settlements of Collateralized Indebtedness (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative [Line Items]
Repayment of collateralized indebtedness and related derivative contracts	$ 0	$ 0	$ (185,105)
Proceeds from Issuance of Secured Debt	38,902	0	185,105
Long-term debt	25,074,961	26,587,733
Gain (loss) on derivative contracts, net	(166,489)	425,815	85,911
Gain (loss) on investments and sale of affiliate interests, net	180,237	(659,792)	(88,898)
Gain on interest rate swap contracts, net	32,664	271,788	92,735
Comcast stock
Derivative [Line Items]
Gain (loss) on investments and sale of affiliate interests, net	192,010	(659,792)	(88,917)
Notes related to derivative contracts
Derivative [Line Items]
Gain (loss) on derivative contracts, net	$ (166,489)	$ 425,815	$ 85,911

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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