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DEBT - Amendment No. 16 Loan Modification Agreement and Refinancing Facility Agreement (Details) - USD ($) $ in Millions				12 Months Ended
	Jun. 04, 2024	Mar. 22, 2024	Nov. 28, 2023	Sep. 30, 2024	Mar. 21, 2024	Sep. 30, 2023
Debt Instrument [Line Items]
Debt instrument, face amount				$ 24,319
Debt Instrument, Unamortized Discount (Premium), Net				51		$ 56
Tranche J Term Loans
Debt Instrument [Line Items]
Debt instrument, face amount	$ 997		$ 1,000
Interest rate	2.50%		3.25%
Debt Instrument, Periodic Payment, Principal	$ 9		$ 3
Debt Issuance Costs, Gross				10
Debt Instrument, Unamortized Discount (Premium), Net			$ 3
Tranche I Term Loans
Debt Instrument [Line Items]
Debt instrument, face amount	2,644	$ 4,525
Interest rate		2.75%			3.25%
Debt Instrument, Periodic Payment, Principal	$ 5	$ 11
Tranche I And J Term Loans
Debt Instrument [Line Items]
Debt Issuance Costs, Gross				3
Write-off of debt issuance costs				14
Debt Instrument, Unamortized Discount (Premium), Net				$ 12