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DEBT - Narrative (Details) $ in Millions		3 Months Ended
DEBT - Narrative (Details) $ in Millions	Feb. 27, 2026 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2027	Dec. 31, 2026	Dec. 30, 2026 USD ($)	Sep. 30, 2026
PSKY Merger Agreement
Debt Instrument [Line Items]
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Termination fee, reimbursement for obligation to complete exchange offer, maximum	$ 1,528
WarnerMedia
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Debt assumed		$ 171
Forecast
Debt Instrument [Line Items]
One time cash payment per principal amount						0.1
Maximum aggregate one time cash payment if exchange offer is not complete						$ 1,500
Bridge loan with maturity of 15 months \| Term Loan
Debt Instrument [Line Items]
Debt instrument, maturity term		15 months
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
Unsecured Senior Term Loan \| Unsecured Debt
Debt Instrument [Line Items]
Proceeds from short-term debt			$ 1,500
Debt instrument, maturity term			364 days
Bridge Loan Facility \| Bridge Loan \| Forecast
Debt Instrument [Line Items]
Fee rate				1.00%	1.00%		0.75%
Senior Notes Due January 2026 and March 2026 \| Senior Notes
Debt Instrument [Line Items]
Principal repayments of term loans		$ 123