LEASES, Operating Lease Assets and Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2024	Sep. 30, 2023
Leases [Abstract]
ROU assets (included in “Other assets”)	$ 562	$ 560
Lease liabilities (included in “Other payables”)	$ 542	$ 539
Location of ROU assets	Other assets	Other assets
Location of lease liabilities	Other Liabilities	Other Liabilities