INCOME TAXES - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Schedule of Reconciliation of Unrecognized Tax Benefits
Unrecognized tax benefits, beginning	$ 235	$ 167
Additions for current year tax positions	59	78
Additions for prior year tax positions	18	13
Reductions for prior year tax positions	(22)	(10)
Acquisitions and divestitures	13	0
Reductions for settlements with tax authorities	(7)	(5)
Reductions for expiration of statutes of limitations	(5)	(8)
Unrecognized tax benefits, ending	$ 291	$ 235