SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Sep. 30, 2024	Sep. 30, 2023
Property, Plant and Equipment [Line Items]
Land	$ 278	$ 255
Buildings	2,048	1,758
Machinery and equipment	3,538	3,228
Construction in progress	321	283
Property, plant and equipment, at cost	6,185	5,524
Less: Accumulated depreciation	3,378	3,161
Property, plant and equipment, net	$ 2,807	$ 2,363
Minimum | Building
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	30 years
Minimum | Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	8 years
Maximum | Building
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Maximum | Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	12 years