LEASES, Operating Lease Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2024	Sep. 30, 2023
Leases [Abstract]
ROU lease assets (included in “Other assets”)	$ 568	$ 560
Lease liabilities (included in “Other payables”)	$ 533	$ 539
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities