INCOME TAXES - Schedule of Principal Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Current:
U.S. federal	$ 325	$ 463	$ 315
State and local	34	47	36
Non-U.S.	452	369	306
Deferred:
U.S. federal	(284)	(159)	(92)
State and local	(18)	(17)	(13)
Non-U.S.	(94)	(61)	(3)
Income tax expense	$ 415	$ 642	$ 549