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SEGMENT INFORMATION - Schedule of Financial Information by Reportable Segment (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) segment	Jun. 30, 2025 USD ($)
Segment Reporting [Abstract]
Number of operating segments \| segment			3
Number of reportable segments \| segment			3
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	$ 6,913	$ 6,849	$ 14,260	$ 14,041
Theatrical
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	138	254	290	402
Licensing and other
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	1,296	998	2,548	2,132
Advertising
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	1,959	2,152	4,401	4,665
Affiliate and subscription
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	3,520	3,445	7,021	6,842
Operating Segments \| Studios
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	1,314		2,597
Operating Segments \| Filmed Entertainment
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues		690		1,317
Operating Segments \| Direct-to-Consumer
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	2,474	2,160	4,872	4,204
Operating Segments \| TV Media
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	3,128	4,011	6,794	8,549
Operating Segments \| Theatrical \| Studios
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	138		290
Operating Segments \| Theatrical \| Filmed Entertainment
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues		254		402
Operating Segments \| Licensing and other \| Studios
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	1,172		2,299
Operating Segments \| Licensing and other \| Filmed Entertainment
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues		434		910
Operating Segments \| Licensing and other \| Direct-to-Consumer
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues			0	1
Operating Segments \| Licensing and other \| TV Media
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	127	574	252	1,248
Operating Segments \| Advertising \| Studios
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	4		8
Operating Segments \| Advertising \| Filmed Entertainment
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues		2		5
Operating Segments \| Advertising \| Direct-to-Consumer
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	535	494	1,052	967
Operating Segments \| Advertising \| TV Media
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	1,420	1,657	3,341	3,695
Operating Segments \| Affiliate and subscription \| Direct-to-Consumer
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	1,939	1,665	3,820	3,236
Operating Segments \| Affiliate and subscription \| TV Media
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	1,581	1,780	3,201	3,606
Operating Segments \| Licensing \| Direct-to-Consumer
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	0	1
Eliminations
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues	$ (3)	(12)	$ (3)	(29)
Eliminations \| Filmed Entertainment
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues		(6)		(12)
Eliminations \| TV Media
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total Revenues		$ (6)		$ (17)