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ACQUISITIONS AND DISPOSITIONS - Acquisitions (Narrative) (Details) $ in Millions		1 Months Ended	12 Months Ended
	Apr. 08, 2022 USD ($) countryAndTerritory	Aug. 31, 2022 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Number of countries and territories available | countryAndTerritory	220
Goodwill acquired during period				$ 348
Acquisition-related costs incurred			$ 242	162	$ 1,195
Selling, general and administrative			$ 9,296	9,696	9,678
Studios
Business Acquisition [Line Items]
Goodwill acquired during period				245
Networks
Business Acquisition [Line Items]
Goodwill acquired during period				(24)
DTC
Business Acquisition [Line Items]
Goodwill acquired during period				127
WarnerMedia
Business Acquisition [Line Items]
Cash (used for) acquired from business acquisitions and working capital settlement		$ 1,200
Impact of measurement period adjustments				368
Acquisition-related costs incurred				$ 162	406
WarnerMedia | Series A-1 Convertible Preferred Stock
Business Acquisition [Line Items]
Selling, general and administrative	$ 789				$ 789
WarnerMedia | Studios
Business Acquisition [Line Items]
Goodwill acquired during period	9,308
WarnerMedia | Networks
Business Acquisition [Line Items]
Goodwill acquired during period	7,074
WarnerMedia | DTC
Business Acquisition [Line Items]
Goodwill acquired during period	$ 5,727

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