OTHER DEDUCTIONS, NET - Schedule of Other Deductions, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Other Income and Expenses [Abstract]
Amortization of intangibles (intellectual property and customer relationships)	$ 205	$ 229
Restructuring costs	9	11
Acquisition/divestiture costs	1	13
Foreign currency transaction (gains) losses	13	1
Other	(24)	(26)
Total	$ 204	$ 228