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Balance Type:
Period Type:

DEBT - Narrative (Details) $ in Millions		1 Months Ended		3 Months Ended					6 Months Ended		9 Months Ended
DEBT - Narrative (Details) $ in Millions	Jun. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Mar. 30, 2026	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Dec. 30, 2026	Dec. 30, 2025	Dec. 31, 2026	Sep. 30, 2026	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2024 EUR (€)
Debt Instrument [Line Items]
Cash tender offer, aggregate purchase price					$ 14,600
Payments to acquire notes receivable							$ 2,610
Borrowings from debt, net of discount and issuance costs									$ 18,303	$ 1,617
Gain on extinguishment of debt					2,958		542		2,954	567
WarnerMedia
Debt Instrument [Line Items]
Debt assumed	$ 331	$ 331			331				331
Senior Notes
Debt Instrument [Line Items]
Senior notes amount repurchased	17,700	17,700	$ 3,399		$ 17,700		$ 3,399	$ 364	17,700	$ 3,399
Gain on extinguishment of debt			$ 542						3,000
Payments for consent solicitations									293
Bridge Loan Facility \| Bridge Loan \| Warner Media Holdings
Debt Instrument [Line Items]
Borrowings from debt, net of discount and issuance costs	17,000
Bridge Loan Facility \| Bridge Loan \| Forecast
Debt Instrument [Line Items]
Fee rate													0.75%	0.75%	0.50%	0.50%	0.30%
Debt Instrument, Basis Spread on Variable Rate				3.50%							4.00%	3.00%
Unsecured Senior Term Loan \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, maturity term					364 days	364 days
Proceeds from short-term debt						$ 1,500
Unsecured Senior Term Loan \| Unsecured Debt \| Warner Media Holdings
Debt Instrument [Line Items]
Face amount	$ 1,500	1,500			$ 1,500				$ 1,500
Debt instrument, maturity term					364 days
Senior Notes Due June 2025 \| Senior Notes
Debt Instrument [Line Items]
Principal repayments of term loans		$ 487
Senior Notes Due March 2025
Debt Instrument [Line Items]
Aggregate principal amount						1,500
Senior Notes Due March 2025 \| Senior Notes
Debt Instrument [Line Items]
Principal repayments of term loans						$ 2,165
Senior Notes Due 2024, 3.900% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			3.90%				3.90%			3.90%								3.90%
Senior Notes Due 2055, 4.000% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			4.00%				4.00%			4.00%								4.00%
Senior Notes Due 2050, 4.650% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			4.65%				4.65%			4.65%								4.65%
Senior Notes Due 2042, 4.950% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			4.95%				4.95%			4.95%								4.95%
Senior Notes Due 2043, 4.875% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			4.875%				4.875%			4.875%								4.875%
Senior Notes Due 2047, 5.200% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			5.20%				5.20%			5.20%								5.20%
Senior Notes Due 2049, 5.300% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			5.30%				5.30%			5.30%								5.30%
Senior Notes Due 2044, 4.650% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			4.65%				4.65%			4.65%								4.65%
Senior Notes Due 2045, 4.850% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			4.85%				4.85%			4.85%								4.85%
Senior Notes Due 2042, 4.900% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			4.90%				4.90%			4.90%								4.90%
Senior Notes Due 2043, 5.350% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			5.35%				5.35%			5.35%								5.35%
Senior Notes Due 2042, 5.050% \| Senior Notes \| Discovery Communications, LLC
Debt Instrument [Line Items]
Weighted average interest rate			5.05%				5.05%			5.05%								5.05%
Senior Notes Due June 2024 \| Senior Notes
Debt Instrument [Line Items]
Principal repayments of term loans			$ 48
4.302% Senior Notes due 2030 \| Senior Notes
Debt Instrument [Line Items]
Face amount \| €																		€ 650,000,000
Weighted average interest rate			4.302%				4.302%			4.302%								4.302%
4.693% Senior Notes due 2033 \| Senior Notes
Debt Instrument [Line Items]
Face amount \| €																		€ 850,000,000
Weighted average interest rate			4.693%				4.693%			4.693%								4.693%
Senior Notes Due February And March 2024 \| Senior Notes
Debt Instrument [Line Items]
Principal repayments of term loans								$ 726